Nokia Repair Manuals and Solutions

Nokia 500 Earpiece Speaker Problem Solution

2012-01-17T07:21:00.000-08:00

This solution covers for Earpiece Speaker problem on Nokia 500 with a 3.2 inches display, TFT capacitive touchscreen phone and runs in Symbian Anna OS. If somehow when the speaker goes wrong and no indication of any audio can be heard over the speaker during when a call has made. This may sometimes happens due from like wet or water damages, and any accidental damaged that might cause the speaker stop working.

This solution provides some simple hints on how to fix it, just take a minute to analyze and locate the speaker parts and the entire connection on the PCB board as shown on the solution image below.

GsmAngel Nokia 500 Earpiece Speaker Repair Solution

Hints in troubleshooting Nokia 500 Earpiece Speaker

1. Start to check with Speaker assembly, it is located at the top of the board behind the LCD screen.
2. Check for possible corrosion build ups, speaker terminal bending. Clean it including the speaker terminal pads or aligned it again if either the connection might be weak.
3. Check the speaker using a multimeter. Set the tester to X1 and check if there is crackling sound can be heard and the tester responds. If no indication of anything, the speaker is already burned out or damaged. Replace it at once.
4. If the speaker is okay, and still there is no sound can be heard, check the firmware. Update it or do re-flash.
5. If the problem still exists, the possible faulty is the GAZOO ASIC chip. The only solution for that is to rework or replace it if necessary and that's need a good soldering skills to do it.
Warning: If you do not have much skills on how to to re-ball or install a BGA chip, just leave it to the experts. Attempting to touch that chip without expertise will cause the phone dead in no time.

Nokia X7-00 Handsfree Speaker No Audio Problem Solution

2011-11-29T10:14:00.000-08:00

Here's the solution for Nokia X7-00 in fixing handsfree speaker no audio problem. The Nokia X7-00 has two handsfree speakers located at the bottom left and right corners of the device. If something went wrong like if there is no sounds can be heard if the handsfree or loudspeaker is being activated, this solution might help for your repair.

Hints in troubleshooting Nokia X7-00 not working handsfree speaker problem.
You may start by manually checking the two speakers using a multimeter tester.
Check the filter coils, for possible damaged, clean the surroundings including the speaker terminal pads if oxidized found.
Trace the connection line paths between the speaker terminal pads to each filter coils where it is being connected.

View larger picture here.

If the first attempt of those methods above doesn't fix the speaker audio problem. The next option is to work on the Audio Codec IC. You may check the VBAT 3.7v across the filter inductor coil, this is the supply voltage to make the Audio IC work. If the voltage is okay, check all the surrounding components of the Audio chip.

View the larger picture here

Rework the Audio Codec IC and then replace if necessary. However, if the problem still exists, there are two options which can be suspected as became faulty - its either the ASIC (Power IC) or the CPU. But working this chips needs a great soldering skills, so if you don't have guts to do it, just ask an assistance to your head technician on duty.

Nokia X7-00 shows 'Charger Not Supported' error repair solution

2011-11-18T09:24:00.000-08:00

Here's the guide on how to fix the Nokia X7-00 that shows "Charger not supported" error when the battery charger is being plug-in. This solution below shows the so-called BTEMP 47K resistor in Nokia X7-00 devices that mostly known by technicians that if being damaged will result to Charger Not Supported problem. This is another not charging problem issues but with a different method on how to fix it.

You can view the larger image here. Just locate that component mounted at the side of the PCB board and replace it. Some problems may also cause by a battery connector, so ensure that the battery terminal are also okay, before attempting to replace it.

Nokia X7-00 Not Charging Problem Solution

2011-11-18T00:40:00.000-08:00

Here's the Nokia X7-00 Solution for Not Charging Problem on the USB pin connector. This may help if the phone suffered wet damaged and resulted to no charging indication when the wall charger is plug-in.

Before proceeding, ensure that the battery and the battery charger are in good working condition.
- Check all the components shown on the image below, you may start by checking the USB pin connector.
- Then the fuse, diode, capacitors and filter coil for possible open or short circuit.
- Trace each of the connection line paths from USB pins down to the components where it is directly connected.

Nokia X7-00 Charging components

view larger image here

Now, if happens if the above parts were already been checked and seems all were okay, the next step is to determine if the battery sense resistor is working fine. see the image below.
You can check around 5V across on the R2200 resistor when the charger is plug-in. That resistor has a 10mOhms, you may replace it if found damaged.

view larger image here

The final option is working on the EM-IC (Power IC) if the above procedures doesn't solved the charging problem. You may try to rework first the ASIC chip, then replace if necessary and or after reworking on it doesn't still fix the problem.

Nokia X7-00 Display Problem Solution

2011-11-17T13:05:00.000-08:00

Here's a troubleshooting hints for Nokia X7-00 LCD Display problem such as blank display or no display at all and otherwise a corrupted or garbled display. This solution may help you for easy repair procedures.

Note: This only works if you can still hear something on the phone like tones, incoming alerts and not on a white screen problem or hang up on white screen situation.

The quick step to fix display problem, is that you have to verify a working LCD, just replace the LCD screen module at once just to ensure that the LCD is working or not and then proceed to hardware troubleshooting after confirming that the LCD is still fine. Just locate the highlighted components shows on figure solution picture below and do have a careful check up on each one of them one by one.

view larger image here.

- Check the display pin connector, clean it, rework or re-solder it if necessary.
- Check the capacitors and coils, replace if necessary, and then check the VBAT voltage and the VIO voltage on it. Those are the supply voltages for the display
- Check the two DSI line choke filters
- If those parts above already checked and seems nothing wrong, the problem possibly exist on the Display UI chip. Reworking or replacing it will only fix the display problem

For damaged or lifted display pin connector or due to wet or water damaged, here's the tracing guide if you might think that the problem lies on a broken display signal line paths.

view larger image here.

So, hope this helps you in fixing display problem on Nokia X7-00.

Nokia C2-03 LCD Back Light LED Problem Solution

2011-11-08T09:05:00.000-08:00

Okay, due to some folks requesting this solution, here comes the Nokia C2-03 LCD screen display backlight LED problem solution. We already have the keypad light solution posted here, so this gonna be a continuation of the white backlight LED troubleshooting for Nokia C2-03. This will also work on C2-06 and C2-08 a dual SIM card slider phone.

Since Nokia C2-03 is a slider phone and used a UI flex (flexible ribbon cable), that is use to connect the LCD screen display from the main PCB board. Now in fixing backlight problem on the display, we must always consider that the flex is vulnerable and may cause the problem.

Here' how to troubleshoot the Nokia C2-03 backlight LED problem:
For quick fix, on minor problem like if the phone status shows no indication of being wet by any liquid, free of oxidation build up or the PCB board is still clean.
- Check the Flex ribbon cable wire.. replace if damaged.
- Check/ try to replace the LCD screen, the white LED's on it may already been busted.

This figure shows the connection line paths of the backlight LED's on Nokia C2-03 UI flex cable. There are two white LED's also mounted on both sides of the top part of the flex. This two LED's were also connected to the inner backlight LED's of the LCD screen.
Take note: the LCD's backlight is also connected in parallel circuit like the two LED's on the flex - meaning if that two LED's was still able to light up but not on the LCD, it means that the LCD's backlight LED is already busted. So check that out...

View in larger image.

The Nokia C2-03 backlight driver components.
In this figure shows the detailed components or parts that is called "LED driver circuit".
This will cause the display backlight loss if one of these components being damaged and or each of its connection line paths breakdowns. This circuit may only damaged if the device suffered wet or water damaged that resulted into oxidation build ups and then caused a short or open circuit.

view the larger image .

So, check out these parts:
- Clean these components surface if necessary.
- Check each of the filter coils first. Replace if found damaged.
- Trace the VLED and VBAT_BB connection line paths - point to point to the corresponding capacitors, filter coils and including down to the Flex pin connector.

Nokia C7-00 Touchscreen Pin Connector Jumper Ways for Lifted and Wet Damaged Solution

2011-09-27T09:11:00.000-07:00

If you are looking and having trouble finding where to put a jumper if the touchscreen pin connector is already gone or lifted due to water water damaged on Nokia C7-00. This solution might help you to ease out your hard time finding where to solder a jumper wire on it just to fix a touchscreen not working problem.

This solution exactly shows the connection line paths of the touchscreen pin connector of the Nokia C7-00 PCB board layout. You may only need to check its corresponding pinouts if the connection were already cut-off or have an open circuit, then solder a jumper on it, for it is only the options.

Nokia C7-00 Touchscreen Pin Connector Jumper Solution

view larger image here:

Jut also check out all the corresponding components where the particular pins is connected for it will also cause the problem if already damaged or corroded. The two coils are for the touchscreen supply voltages 1.8V and 2.8V , the corresponding resistors are for the touch screen data signal filters which has a rated value of 100ohms each. So, that's it and hope this helps to you on fixing Nokia C7-00 touchscreen problem.

Nokia C2-03 Keypad Light LED Problem Solution

2011-09-12T12:34:00.000-07:00

In this solution we show you the Nokia C2-03 keypad LED light components which is useful to fix when the keypad LED failed to work. There are two white LED light used in in illuminating the keypads, it may also get damaged due by water, wet or cause by oxidation build ups.

The solution below shows the connection line paths of the two white LED's which is more convenient in tracing broken spots. It also shows which nearby particular components it is being connected or part of the keypad back lighting circuit.

Here's the some hints that may preferably help fix in troubleshooting Nokia C2-03 keypad back light failure.

1. Check the whole area and surrounding components for the keypad white LED for possible damaged, cracks, oxidation etc. Clean it first if necessary.
2. Check both of the two LED's using a multimeter. Replaced if already damaged.
3. If the LED's light are still working check the (VBAT 3.7V) battery voltage line paths.

Nokia C2-03,C2-06,C2-08 Keypad light problem Solution

4. Check each of the LED's positive and negative connections.
5. Check the connected resistors and coils, re-solder or replace if damaged
6. Check the LED driver transistors. Re-work or replace if necessary.
View larger picture here.

This solution may also works on Nokia C2-06 and Nokia C2-08 since they both similar PCB board layout with Nokia C2-03 a Dual SIM card built in capability and a slider phone.

Nokia C2-03 White Screen, No LCD Screen Display Problem Solution

2011-09-04T00:18:00.000-07:00

This solution covers to fix Display problem for Nokia C2-03, C2-06 and C2-08 Dual SIM card slider phone. These are just simple hints on how to troubleshoot display problems such as white screen, empty or black screen. I'm referring display problem that you may still hear an audio from the device like welcome tone, alert tones or ringtones., and this solution covers for hardware troubleshooting only.

Some white screen are cause by a firmware failure. So, if you may try to figure it out either you will do a software or hardware calibration do things as follows.
Power up the device, observe if you can still hear any welcome tone. Try to send message or call the phone and see if the alert or ringtones is still in there. If you do can still hears it, then the problem is on hardware failure, If there is no response at all and just stock in white screen then the problem lies on firmware.

How to fix Nokia C2-03 White screen and other display problems such as blue screen, blank or empty screens.
If you try to fix firmware problem, simply flash the phone to it's original firmware version. The firmware version for Nokia C2-03 is RM-702.

If you do have hardware problem, follow the simple hints below.
1) Check the flex and LCD pin to pin connections, ensure that it is properly in good contact. A weak or loosen contacts will cause the display problem.
2) Check the LCD screen for possible damaged or cracked. If you ain't sure better have a extra LCD at hand just for a quick test.
3) Check the flex ribbon cable for possible damaged. Since Nokia C2-03 is a slider phone, the possibility of display problem is cause by flex failure.
4) If both the flex and LCD were already confirmed working and okay. You may then proceed in troubleshooting certain components on the Nokia C2-03 PCB board.
5) See the solution below, check the highlighted components surrounding, clean it if there is an oxidation spotted.

View larger image here.
6) Check each of the display filter components, do rework, resolder or replace it.
This solution may also works on Nokia C2-06 and Nokia C2-08 dual SIM card phones, because both are the same as of Nokia C2-03 PCB board.

Nokia C2-03 Insert SIM Card Problem Solution

2011-09-01T08:20:00.000-07:00

Here's the Nokia C2-03 slider phone Insert SIM card problem solution for both SIM 1 and SIM 2.
The first solution refers to SIM card 1 which is the sim card behind the battery, this solution shows each of the corresponding SIM card Pins connection including the SIM card filter IC that shows the internal connection (jumper ways). Since the Nokia C20-03 is built with two SIM cards, the SIM controller IC is also found in the circuit.

The second solution refers to the SIM card 2 which is the SIM card slot at the side. As you'll notice that it has no SIM card filter IC and connected directly to the SIM controller IC. So, troubleshooting insert SIM card problem on C2-03 may only vary which of the two doesn't work or show an error "SIM card not inserted or detected".

A. Hints in troubleshooting Nokia C2-03 insert SIM card problem on SIM 1 (behind the battery).
1) Check the SIM card pin connectors for possible damaged, replace if necessary.
2) Clean the SIM card pin connectors if oxidation build up spotted. (corrosion may also cause insert SIM issues)
3) Check and trace the VSIM and ground pins connection line paths.
4)Check, rework or replace the SIM card filter IC, or try the jumper ways remedy.
5) If the SIM card IC is already been replace, Check the VSIM voltage.
6) Replace the Dual SIM controller IC.

B. Troubleshooting Nokia C2-03 insert SIM card problem on SIM 2 (side slot).

1) Do the troubleshooting guide from SIM 1.
2) Since the SIM 2 does not have filter IC, proceed to rework or replace the Dual SIM controller IC

This solution may also work on Nokia C2-06 and Nokia C2-08 Insert SIM card problem.

Nokia C2-03 Insert SIM Card Problem Solution Main slot behind the battery

Nokia C2-03 Insert SIM Card Problem Solution - Side Slot

Nokia C2-03 Volume Up and Volume Down Button Switch Connection Tracks /Jumper Ways

2011-09-01T07:46:00.000-07:00

Here's the connection line paths for Nokia C2-03 that may useful in troubleshooting a not working Volume control both UP (+) and DOWN (-) button switches. This shows the connection line paths (jumper ways) specially when trying to fix the button switch if severely damaged or the PCB solder pads has been already lifted. You may use a multimeter to trace each of the volume button keys terminals connection across to a components where it is being connected. This solution may also work with Nokia C2-06 and C2-08 dual SIM card slider phones.

Nokia C2-03 Volume Up and Volume Down Button Connection

Nokia C2-03, C2-06, C2-08 Speaker Problem Solution

2011-08-22T23:42:00.000-07:00

If trying to troubleshoot or fix Nokia C2-03 or C2-06 and C2-08 touch and type, dual SIM card slider phone with audio problem such as no alert tones, ringtones or music sounds can be heard from the device when playing mp3 songs or videos. This solution might be useful for easy troubleshooting procedure. Just observe the components that are connected within the speaker circuit on Nokia C2-03 or C2-06 and C2-08 PCB board.

Here's a hints on how to fix no speaker audio problem on Nokia C2-03 or C2-06 and C2-08 dual sim card phone.
1) Check the speaker using a multimeter. Replace if already damaged. A distorted audio sounds is cause by a weak speaker... or it is already burned out. (internal coil is damaged)
2) If the speaker is good and seems no problem, ensure that the terminals were not misaligned. Then clen the speaker terminal contact pads for possible oxidation build ups (this might weaken the connection).
3) Check each of speaker+ and speaker- corresponding connection line paths accross to each components where it is being connected.
4) Check all the filter coils and capacitors connected to it. Replace if found damaged or already corroded.

The Nokia C2-03, C2-06, C2-08 PCB Speaker Components & Connection Line Paths

View the larger image.

Nokia C2-03, C2-06, C2-08 Memory Not Detected Solution (MMC IC Jumper Tracks/Ways)

2011-08-22T22:41:00.000-07:00

Here's another solution that covers for Nokia C2-03, C2-06, C2-08 memory card not detected problem cause by wet damaged or any possible causes like oxidation build ups etc.The Nokia C2-03, C2-06 and C2-08 slider phone has designed with a built in ESD and EMI filter chip that protects the system circuit if there's something went wrong from the memory card. In most Nokia PCB design this chips were also found and called as "MMC filter IC". So, in troubleshooting Memory card not detected problem mostly it can be fix by replacing the said MMC IC.

Here's some hints on how to fix Nokia C2-03, Nokia C2-06 or Nokia C2-08 Dual SIM card, slider phone with touch and type features.
1) If memory card is not detected error shows, try to use another working memory card. The memory card might be corrupt or already damaged.
2) Check for possible damaged and or clean the memory card connector pins and its surroundings components on the PCB board.
3) Check the firmware, reflash, restore or update to latest version if necessary.
4) Check, resolder, rework or replace the memory card filter chip (MMC filter IC)

Nokia C2-03, C2-06, C2-08 Memory Not Detected Solution

Nokia C2-03, C2-06, C2-08 Microphone Problem Solution (MIC Jumper Ways Tracks)

2011-08-21T09:12:00.000-07:00

Okay, here's another solution for Nokia C2-03, C2-06, C2-08 that might useful in troubleshooting a microphone or MIC problem. This solution shows the connection line paths and components that holds for microphone circuit to work on Nokia C2-03, C2-06, C2-08 dual SIM card phone. This may help only for hardware related problem., like wet damaged or oxidized causes.

Here's some hints on fixing the MIC problem:
1) Visually check all the highlighted components holds for the microphone, clean using a liquid cleaner kit if an oxidation build up found.
2) Check MIC+ and MIC- connection line track or path for possible open.
3) Check replace the coils, capacitors and resistors connected in the MIC circuit.
4) Replace the microphone module.
5) If the above procedure doesn't fix the problem, the possible faulty might be the XGOLD chip.

Nokia C2-03, C2-06, C2-08 Microphone Connection Tracks)

Nokia C2-03, C2-06, C2-08 Charger Not Supported Problem Solution

2011-08-18T01:57:00.000-07:00

Another solution shown below covers for Nokia C2-03, C2-06, C2-08 dual sim card phone for troubleshooting "Charger Not Supported" Problem. This error message will show on the LCD display when the a wall charger is plug-in and cause the phone unable to charge for it will not accept or recognize the battery charger.

In troubleshooting such charger not supported problem, you may first try to use another wall charger and also try another working battery. Then proceed to hardware troubleshooting if the battery and the charger were both working well. In Nokia phone circuit design, there is a certain components that holds like a battery temperature indicator, and when damaged due by water or oxidation build ups, it will result to a charger not supported error message.

Here's how to fix Charger Not Supported Problem on Nokia C2-03, C2-06, C2-08 Dual SIM phone.
1) Check the battery connector terminals, clean if necessary.
2) Locate the two highlighted components, those are resistors and holds as battery temperature (BTEMP) indicator. Try to replace first the rated 47K resistor then the 120K.

Nokia C2-03, C2-06, C2-08 Charger Not Supported Solution

Nokia C2-03, C2-06, C2-08 Not Charging Problem Solution

2011-08-17T03:09:00.000-07:00

Now working on with the new solution for Nokia C2-03, C2-06 and C2-08 with Dual SIM phone capability. This time we will tackle first the charging circuit in case handling into troubleshooting a not charging problem, due to wet damaged or any possible causes.

The highlighted components below are the basic components of Nokia C2-03, C2-06 and C2-08 charging circuit just like any other Nokia previous PCB designs, the only thing always makes any different is the location of those particular components location being mounted on the PCB board.

And here's how to fix a not charging problem for Nokia C2-03, C2-06 and C2-08:
1) Ensure and check first the wall charger, battery and battery connectors for possible damaged.
2) Check the charging pin connector (DC jack), clean it including the terminal contact pads. Replace if necessary.
3) Check the charger voltage protection components such as the fuse, diode, filter coil and capacitors. Replace if found damaged.
4) Trace the charger voltage line paths for possible open circuit or cut-off lines.
5) Check the charging voltage transistor switching circuits, including the 0.15 ohms fusible resistor.

Nokia C2-03, C2-06, C2-08 Charging Problem Solution

Nokia C2-00 Not Charging Problem Solution

2011-07-31T08:26:00.000-07:00

This is another solution that may possibly help in troubleshooting Nokia C2-00 Not Charging problem.
The picture below shows the basic components needs to check if the phone somehow doesn't charge if the wall charger is plug-in. But you may first ensure that the wall charger and the phone's battery you are using are still working. A drained battery will not charge, try to plug the battery charger around an hour or try to replace it with a good one, to quickly check if the battery got the problem.

If the battery and wall charger seems no problem, have a visual check on battery connector and charging pin connector (DC jack) for possible damaged. Then proceed to PCB board or hardware troubleshooting to continue.
1) Clean the charging pin connector and terminal contact pads. Ensure that it is not misaligned.
2) Check the fuse for possible open circuit, replace if found damaged.
3) Check the diode for possible short circuit, replace if found damaged.
3. Check the charging transistors for possible oxidation build ups, clean, rework or replace if necessary.

Nokia C2-00 Charging Components

Nokia C2-00 Charger Not Supported Problem Solution

2011-07-12T04:01:00.000-07:00

In case you are trying to solved Nokia C2-00 with Charger Not Supported error problem when the wall charger is plug-in this solution may possibly help for your troubleshooting.

Before proceeding to troubleshooting, you may try to use another wall charger, replace or use another battery and then clean the battery connector and charging pin connector (DC jack).
If the problem still persist, you may the locate the two highlighted components on the solution below, check for possible damaged, clean if oxidized and then replace the 47K resistor first then the 120K. These resistor hold as Battery Temperature Indicator, once damaged it will result to charger not supported error issue.

Nokia C2-00 Charger Not Supported Problem Solution

Nokia C2-00 No Display and Keypad Light LED Solution (Connection Jumper Ways )

2011-07-12T03:43:00.000-07:00

Here's the solution if it happens that you are troubleshooting Nokia C2-00 LCD Display and or keypad backlight problem caused by wet damaged or anything else.

This guide may help you out if the LCD screen shows a dark screen and or the keypad white LED are not functioning. The solution below shows the connection line paths of the LCD and keypad backlight LED of Nokia C2-00 PCB board. You can easily trace and locate where the possible problem occurred.

On Nokia C2-00, the keypad and LCD white backlight LED were connected in series, so it means if there is one LED is busted the whole backlight circuit will shutdown. For easy troubleshooting, you may first check both of the white LED on keypad, then check also the battery power voltage (VBAT 3.7V) connection.
The LED driver circuit will be the next spot, then check all the corresponding LED+ and LED- connections down to each of the keypad and LCD white LED.

Nokia C2-00 Keypad and LCD Display Backlight Connection Tracks

Nokia X7-00 Insert SIM Card Problem Jumper Ways Solution

2011-07-04T23:56:00.000-07:00

This solution might help you to fix Nokia X7-00 with "Insert SIM card error" problem. If the phone doesn't recognize any SIM card inserted to it this might be your guide on how to solved and mend the issue.

You may start by checking the SIM card pin connector for possible damaged or lifted. Check if it needs a re-soldering or just cleaning. The colored line paths represents each of the corresponding SIM card connector pins, just do trace each of them carefully then mend to reconnect if somehow there is open or cut connections. Check each of connected capacitors , replace if already damaged.

View the larger Nokia X7-00 Insert SIM Card Solution here.

If the solution above doesn't fix the problem, then the trouble might possibly lies on the Gazoo (ASIC) chip.
Reworking it might only fix the said nnsert SIM card problem on Nokia X7-00.

Nokia X7-00 Memory Card Not Detected Problem Solution

2011-07-03T23:38:00.000-07:00

Here's the Solution for Nokia X7-00 memory card not detected problem. Locate the highlighted components and begin checking it out. Do trace each of the connection line paths, start on the VMEM then down to each corresponding MMC slot pins connection.

Nokia X7-00 MMC not detected repair guide

View the larger image here.

Nokia X7-00 Camera Hardware Failure Solution

2011-07-02T22:45:00.000-07:00

This solution might help if you try to fix Nokia X7-00 camera hardware failure. This only works if you've already calibrated its firmware and doesn't found out the fix on it. This solution shows the common areas where you may start out to have a check up procedures if trying to repair a camera problem on Nokia X7-00.

Locate these components area in the PCB board for this holds the camera power circuit of the X7-00. These components were oftentimes cause the failure if being damaged caused by wet or water damaged.
The IC's are the camera power voltage drivers, these is driven with the battery 3.7 volts input voltage and having an output of 2.8V VCAM and 1.8 V VDIG which is the supply voltage of the camera module.

Nokia X7-00 Camera problem Solution

View larger image here.

You might check this components, trace and check the input 3.7V battery voltage and output voltage values. If the 1.8V is not present, replace the VDIG DC driver and then if the 2.8V is not present replace the VCAM DC driver.

Nokia X7-00 Earpiece Speaker No Sounds Problem Solution

2011-07-01T22:13:00.000-07:00

Here's the solution for Nokia X7-00 if there is no sounds can be heard on the earpiece speaker during a call.
This may help fix for minor problem if the phone suffered wet damaged or the areas of the speaker components has been lifted or corroded.

You may try this solution out after checking that the speaker is okay and something needs to figure out on its components. This is only a brief solution but as well help to repair earpiece speaker problem on Nokia X7-00. Just locate those parts clean it first and do trace each of the speaker line paths and connected components.

Nokia X7-00 Earpiece Speaker PCB board components

view larger image here.

Nokia X2-01 Keypad backlight LED Problem Solution (Jumper Ways)

2011-06-20T10:53:00.000-07:00

If the illuminating backlight LED on X2-01 keypad failed to to turns ON, this solution may help to fix the white LED bulb on keypad tends not working.You may just refer to the solution below and and get hints on what and which components needs to check for troubleshooting process.

The solution below shows the entire keypad backlight LED circuit connection.You may check those highlighted components, supply voltage and trace each desired connection line paths.

Nokia X2-01 Keypad backlight LED Problem Solution

Nokia C2-00 Dual SIM Card IC and Connection Tracks (Jumper Ways Solution) v.1

2011-06-20T10:42:00.000-07:00

A reserved solution for the Nokia C2-00 in-case damaged due to wet by means of any liquid and water damaged and result to "Insert SIM Card" error problem displays on the LCD screen. This solution may help on fixing the Nokia C2-00 if it does not detect or recognize any SIM card inserted to it. This covers the two SIM card slots, so you can apply this solution in-case only one or both of the SIM card slots doesn't work C2-00 mobile phone.

Now, on C2-00 the two SIM card connection, both uses a SIM card filtering IC. This IC's are the same at all other Nokia phones which also have and used filtering chips for the SIM card. The only new in the circuit is the SIM card controller IC as switching and holding the two SIM cards.

Nokia C2-00 Dual SIM card connection Tracks v.1