15 SOLUTIONS TO SOME COMMON PHONE PROBLEM

1. Phone fails to power on
Check on/off switch
Check battery voltage
Check if it can charge
Bad power IC
Do cross connection
Use computer software to flash it
2. Keypad Problem
Clean the keypad interface on the circuit Board
Check if there is continuity on the interface.
Replace the keypad with the same maker and model.
3. Phone not Charging
Confirm the charger is working by reading the output voltage with meter or test it with another phone.
4. Phone drop into water
Quickly remove the battery
Dismantle the phone and allow it to dry
Use ethylated spirit to clean power contact.
Use hot air blower or find alternative to dry the board and assemble it back.
5. Partial contact
At time the problem lies on the bus heat or dust might have blocked the bus lines. The only solution to this is to remove the board, clean the bus line with fluid, while cleaning, and make sure you do not allow it to touch the components on the board.
6. Blunt Screen
This problem arises when the cell phone is placed on where heat contacts with the phone after some minuets. That optical fibre will produce cladding.
7. Blinking of Screen
This could be cause by the flex of a phone, not firm the main LCD. You will need to change the flex to resolve the problem.
8. Audio Problem
Carefully unscrew the cell phone and clean the panel with mentholated spirit. Clean the ringer with dry tissue.
9. Nothing is displayed on the screen or the messages are not clearly written
Unscrew the phone and bring out the screen as well, clean all dust that may be there, clean the interface very well with fluid and allow it to dry for some minutes and pack it back carefully.
10. Battery drains faster than it supposed
If the battery is new change it for two or three hours to normalize the performance. If it’s an old battery read from the voltage to know the capacity. If the area is available coverage battery unless the user leaves the area, the battery will always drain faster.
11. Blinking of network signal
Check the environment you are if there is enough coverage capacity to receive network. Make sure your antenna is okay or press *#0000#
12. Contact service
The solution to this problem is to use PC software to flash it. There is a cell battery on the board that empowers the phone to retain given information. When the battery is weak or dead he phone can no longer store or retain any information.
13. Loss of Memory
Change the battery with the original type. If the battery is ok after reading with meter, then recharge the battery to its normal capacity. The TAM IC may be bad, blow heat on it.
14. No Network
Check if you are in coverage area. Are you customized to a particular network? Check the transmitting and receiving area on the circuit board.
15. Outgoing and incoming calls not allow
Check the validity of the sim card, reset the factory setting. Use manual searching to check if the brand can view network then, press #33.0000# send to cancel call barred.