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Here's the solution that may possibly help fix and repair nokia 7230 charging problem that shows charger not supported on the LCD screen when the battery charger is being plug-in. The charger not  supported problem is cause by a faulty battery temperature indicator resistor. This solution below shows the location of that certain resistor on Nokia 7230 PCB board layout. Nokia 7230 Not Charging Problem - Charger Not Supported Solution By replacing the BTEMP 47K Resistor might possibly fix and repair Nokia 7230 charger not supported problem.

 If already tried to checked the speaker on Nokia 7230 and seems it is working but still no audio sounds can be heard on it. This solution may possibly help fix and repair Nokia 7230 No Sounds can be heard on ringtones and hands free loud speaker. After ensuring that speaker is okay , you may then check or replace the components showed on the solution below. These are composed of filter coils or inductors, you may also trace the audio signal line paths and check if the line is not open or cut. Nokia 7230 Ringer and Integrated Hands Free Loud Speaker No Sound Solution If the filter coils is okay and the line paths is not being cut or open, you may then suspect that the problem may lies on the GAZOO IC, reworking this chip might possibly fix and solved Nokia 7230 Ringer and Hands Free Speaker Problem.

Here's a brief solution for Nokia 7230 No network signal problem. This solution shows the RF circuit on nokia 7230 that holds the radio signal  during data transmission. Please note before you may use this solution, first ensure that the device firmware is totally calibrated, successfully flashed or restored and upgraded or downgraded. This solution below covers only for hardware failure that may not or can't be fix by software or firmware. The Nokia 7230 RF circuit components mounting is similar to Nokia X6. This solution below is from Nokia X6 board.  Nokia 7230 No Network Signal Solution Just follow the instructions indicated on the solution above of which and where to start in  troubleshooting proceedings. In most common cases the RF Power Amplifier breakdown may most often causes the problem.

If ever having a problem on Nokia 7230 that indicates No Memory Card detected even tried to inserting a working microSD memory card but the the device unable to read it or detect it. This solution below simply shows the particular components that needs to be check, trace and or replace if having memory card problem on Nokia 7230. Nokia 7230 Memory Card Not Inserted Problem Solution First, ensure that the memory card slot pins are free from oxidation and foreign objects. Check also that it is not damaged or misaligned and still properly soldered. Trace and check the voltage supply line paths as well also the ground line. If the voltage supply and ground lines is okay, but the problem still exists, you may then suspect that the problem lies on the GAZOO IC, reworking or re-balling the chip might possibly solved and fix the problem

This solution covers for Nokia 7230 if the microphone failed or no voice sound can be heard over the receivers mobile phone. This solution is simple guide that lets you trace or check certain components on nokia 7230 PCB board that might cause the problem. Nokia 7230 Microphone Not Working Solution Check and ensure that the microphone module is okay or try to install a new replacement on it. The solution above showed the components such as the filter coils and 47 ohms resistor if the microphone is okay. Replace these components if found damaged.

This solution may work and can be applied if Nokia 7230 does not detected if being plug-in to a personal computer . This solution shows the particular components that needs to check or replace if the device handset is not detected over the USB. Nokia 7230 Device Not detected on USB to PC connection Check all the components showed on the solution above it is labeled according were to begin with.

Here's the solution for Nokia 7230 Earpiece speaker problem. This solution may help fix and repair if there is no audio sound can be heard over the earpiece speaker. The solution below shows the two filter coils and a ESD protection resistor that needs to be check or replace if the earpiece speaker is working okay and the flex cable wire is also well and or already tried and replacing a new spare. Nokia 7230 Eapiece Speaker No audio sound solution The GAZOO IC holds the earpiece audio signal that being feeds to the earpiece speaker. If all corresponding components such as the speaker, flex cable and the filter coils showed on the above location, you may then suspect that the problem lies on a faulty GAZOO IC. Reworking it might possibly solved the problem

This solution may possibly help fix and repair a damaged Nokia 7230 that result to Insert Sim card problem issues. If the mobile handset device does not accept any kind of sim card and only shows insert sim card in the LCD screen display, you may refer to this solution below to trace and check certain components that might get damaged and result to insert sim card problem. Nokia 7230 Insert Sim card repair Solution The solution above shows the connection of the sim card pin connector and its signal line paths through to the GAZOO IC. You may need to ensure that SIM card pin connector is perfectly clean and free from any oxidation build up. The SIM card supply voltage or VSIM is one particularly line paths that may need to check first for this line paths will easily open or cut especially if the nokia 7230 suffered water  damaged. If the Sim voltage line is okay and you get a voltage reading on that area. You may then proceed to suspect that the GAZOO chip is faulty, reworki...

Here's the full keypad solution for Nokia 7230 keypads failure or malfunction. This solution may possibly help fix Nokia 7230 if any certain keys stop responding or not working . This solution shows the line paths of the Numeric keypads only, the navigation keys like SELECT , UP , DOWN , LEFT , RIGHT , Soft Left , and Soft Right and including the Power Key are connected within the Flex keypad membrane , so if the above keys only stop responding you may need to check and replace the flex cable first before using this solution below. Since all keys including the Upper keys or Navigation keys and the Numeric keys are both connected  to the EMI-ESD filter IC. There is a certain point and possibility that all of these keys may not work or stop responding due to a water damaged, you may then proceed to use this solution below. Nokia 7230 Keypad IC Jumper ways and line tracks The numeric keys are group by outer and inner core layers of connections . There is a resistors which ha...

This solution may used to troubleshoot and repair a damaged Nokia 7230 that result Display problem issues like white screen , blue screen , blank or black screen , garbled and saturated screen displays that is not due to LCD Screen Display Module problem. This solution may possibly help fix and repair Nokia 7230 after ensuring that the LCD screen display module is working okay and or already tried installing it a new replacement spare LCD module. Nokia 7230 Display Problem Repair Solution The solution above shows the Line tracing spots from the LCD flex pin connector to a certain components On Nokia 7230 PCB Board. You may check and trace this line tracks and check the corresponding components connected to it. If all the line tracks is okay. You may then suspect that the application processor or CPU is faulty or being damaged. Please take note that handling CPU IC is  complicated and needs expertise, so observed extra precautions.