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This solution show the two filter coils and ESD filters that needs to be check or by then replace if there is no audio sounds can be heard over the earpiece speaker On Nokia N78.
Ensure that the speaker is working fine before trying to check and replace those components showed on the solution picture.

Those components are composed of a chip filter coils and an ESD filter that looks like a resistor and mounted on the top left side of the PCB board.

Heres the solution for Nokia N79 display problems such as blue Lcd, white Lcd, black or blank Lcd displays. This solution may help fix for the symptoms after ensuring that LCD Lcd module is working okay but the problem still exists.
The guide below shows the LCD display data signal line tracks from the display EMI filter IC to the corresponding LCD display B2B pin connector.



Repair hints: If the two Display EMI-ESD filter has been change but the problem remains. Do try to rework the display IC marked with number three. Just have the rework station heat controlled about below and not above 350 degrees and have an air flow of 3-5 range. Need extra care for that IC to work with.
P.S. this solution has been posted by special request.

Heres the solution tp repair Nokia 7510 supernova Charging problem issues. This solution shows the location of the spare components that might get damaged if the device does not respond when a charger is plug-in.

From the charging pin terminal the charger positive voltage is feeds across to a chip fuse, if the chip fuse is damaged or busted the battery charger voltage cant get through to the circuit,
make a continuity check on the fuse by using a multimeter, replace it if found damaged.
Check the chip diode if shorted or not, a shorted diode will make the fuse blown out again.
If the chip fuse and chip fuse is working fine and found out that theres no problem on both  it, you may proceed to work on the betty IC,
The betty IC holds and control the charging operation of the cell phone battery.
Re-flow and apply a mild heat first on the betty IC, then check again if the problem was solved.
If the problem still exists, remove the betty IC, trace the corresponding solder ball bumps that is connected to the filter coil (power inductor). If found cut or open and you can manage to apply a jumper wire, then do it, if wont not just leave it and return it to the owner..
If the said line paths is okay you may re-ball the betty IC then in-place and mount it back again.
If the problem still persists, you may then find a new replacement spare betty IC and replace it.

blackberry 9900 cellular phone low microphone repair solution if u have this model phone and your phone problem low mic not working 100% sound i have this mic solution this solution many time tested me 

see this solution this solution working blackberry mic not working solution low sound solution mic line damage solution,mic line jumper solution many solution working this diagram see and enjoy it 

Blackberry 9900 cellular phone keypad repair solution

1st check red mark daid check and change i think solved your blackberry phone 9900 low mic solution and dont forget visit my blog.

blackberry 9700 cellular phone headphone repair solution ,if u have blackberry cellular phone and u have this phone problem for headphone not working and show for display headphone line i have this problem 100% working solution if u need this i granted this solution for 1005 working for blackberry cellular phone 9700 headphone not working solution see my solution

blackberry 9630 Cellular Phone Fake Charge Repair Solution

see my solution and see my red color 1st try this all tendester reheat and soldaring 2nd try try this all parts change i hope your problem is solve for blackberry 9700 headphone solution. this solution working for blackberry headphone line not working ,blackberry 9700 without ic only soldaring done .blackberry 9700 headphone line jumper ways try my ways step by step i think your problem solved 100% and dont forget visit my blog.

Welcome to Octopus Box Samsung software version 1.2.8
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To connect GT-N7000 phone you have to perform the following steps:
1. Disconnect USB cable from phone.
2. Go to Menu->Settings->Applications->Development.
3. Turn on "USB Debugging" option.
4. When message is appear press "Yes".
5. Go to dial window.
6. Enter "*#7284#" number.
7. Set "USB" radio button to "PDA" value.
8. Close window.
9. Go to dial window.
10. Enter "*#9090#" number.
11. Set "Diag config" to "USB" value.
12. Restart phone.
13. Press "Read Info" in Octopus Samsung software.
-----------------------------------------------------------------------------------
Platform: Samsung Anycall
Selected port: COM1
Selected model: GT-N7000
Phone was not found on the selected port!
Searching for USB diagnostic port...
Connecting to phone on COM169
-----------------------------------------------------------------------------------
Platform: Samsung Anycall
Selected port: COM169
Selected model: GT-I5500
Detected phone model:
HW Version: XXXXXXXXXXXXXX
Phone model is not supported
Mode: Normal
Phone model:
Phone model is not supported
Phone was not found on the selected port!
Searching for USB diagnostic port...
Connecting to phone on COM169
Detected phone model: GT-N7000
HW Version: XXXXXXXXXXXXXX
Phone IMEI: 004999-01-064000-0
Firmware compiled date: Tue Dec 20 20:22:15 KST 2011
Android version: 2.3.6 (GINGERBREAD)
Phone IMEI: 004999010640000
-----------------------------------------------------------------------------------
Platform: Samsung Anycall
Selected port: COM169
Selected model: GT-N7000
Detected phone model: GT-N7000
HW Version: XXXXXXXXXXXXXX
Phone IMEI: 004999-01-064000-0
Firmware compiled date: Tue Dec 20 20:22:15 KST 2011
Android version: 2.3.6 (GINGERBREAD)
Phone IMEI: 004999010640000
-----------------------------------------------------------------------------------
Platform: Samsung Anycall
Selected port: COM169
Selected model: GT-N7000
Detected phone model: GT-N7000
HW Version: XXXXXXXXXXXXXX
Firmware compiled date: Tue Dec 20 20:22:15 KST 2011
Android version: 2.3.6 (GINGERBREAD)
Phone IMEI: 004999010640000
Old IMEI: 004999-01-064000-0
New IMEI: 359616-04-863474-5
Writing new IMEI. Please wait...
New IMEI successfully writed.
Please, restart phone to apply changes
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