Monday, September 30
1.
Phones
fail to power on.
a. Check on/off switch
b. Check battery voltage
c. Check if it can charge
d. Bad power
IC
e. Do cross connection
Use computer software to flash it. If it is a Nokia phone just follow
this link and read my previous post on how to flash a Nokia phone.
2.
Keypad
Problem
a. Clean the keypad interface on the circuit
Board
b. Check if there is continuity on the
interfere
c. Replace key with known working one of same
make and model
a. Quickly removes cell battery
b. Dismantle phone and allow it to dry
c. Use methylated spirit to clean power
contact
Use hot air blower (Excellent alternative
to dry the main board and park it back )
4.
Battery
drains faster than it supposed to.
If the battery
is new charge it for two or three hours to normalize performance. If is an old
battery read from the voltage to know the capacity. If the area is short of
network coverage and unless the user leaves the area, the battery will always
drain faster.
Some phones
that uses 3G, 3.5G, and 4G…. YOU CANT ESCAPE THIS PROBLEM WHEN THIS NETWORK
FROM IS ACTIVE.
5.
Blinking
of Screen
This problem could be caused by the flex of
a phone, not firm the main LCD. To solve this change the flex.
6.
Blinking
of network
Check the environment you are if there is
enough coverage capacity to receive network.
Press *#0000#
7.
Phone
not charging
a. Confirm the charger is working by reading
the output voltage with meter.
b. Check the fuseable resistor and replace if
broken.
c. Check the charging point tag to see if it
has removed from the board add a soldering lead to clear the problem.
If your phone has any of these problems and
the solutions provided cannot solve it then go to your nearest phone Engineer
to help you out.
Remember to comment before you leave, We appreciate
your comments
