Get Data

If any, all or a few keys not working in nokia asha 300 then this post will help you to solve all keypad not working problems easily and in a quick way. Simply look at diagram bellow and check all the track and links as shown in it.Nokia 2320 Classic Local Test Mode Problem Solution see All cellular mobile repair solution

Once you check with meter if any of them is broken make these jumpers and your problem will solve easily. All same color keys outer and inner are to define same link ways. If a single key is not working we can apply jumper form other key that have same color for outer or inner.
Some key are going to resistance and capacitors in diagram so we have to apply jumpers on those places and parts. In diagram above a few small diagrams have red border and these are zoom images of the board so that you can see parts vary clearly.
So zoom diagram are only to show close up of board. The diagram above also contain on off button ways in it.
for more detail and new tips and tricks about cellphone service problem keep visiting this page we will update cellphone service diagrams timely with new cellphone diagrams.some related post are also given bellow you can read them also for more information about cellphone.

Heres a full keypad solution that may useful and possibly help fix and repair Nokia N92 keypad problem or failure. If any certain keys will not been able to function this solution will show you each keypad keys line tracks and connections, including the keypad filter IC that may also cause the keypad keys failed to function if damaged or faulty.


There are two keypad ESD filter is being used on the keypad circuit of Nokia N92, (see solution above).
The small keypad IC holds the volume UP and DOWN control and the Camera Shutter button, and some  group of keys.
The bigger one holds all the keypad keys, if this keypad filter IC is damaged all of the key will not respond or unable to function. By only replacing it with a new one will only possibly fix or repair the keypad problem on Nokia N92.

Nokia 5233 keypad is not working problem can be due to a few basic reasons.it can be due to Keypad ic.so if you do not want to change keypad ic then you can apply these jumpers as given in diagram bellow.
Nokia 5800 volume up down not working solution

in diagram above you can see different color lines so apply same jumpers to short keypad in NOKIA 5233 KEYPAD IC JUMPER,KEYPAD SOLUTION.if you have keypad ic then in you first preority change it.
for more detail and new tips and tricks about cellphone service problem keep visiting this page we will update cellphone service diagrams timely with new cellphone diagrams.some related post are also given bellow you can read them also for more information about cellphone.

If the Send, E60 and End key button keys failed to respond on Nokia X6, and you already tried to restore, reset, flash and update the device firmware but nothing happens.
Keypad keys malfunction on Nokia X6 may also possibly caused by a faulty keypad flex, cleaning or by replacing it will help solved the problem.




If after replacing and ensuring that the flex is okay but the keys still unresponsive, you may then consider that the problem lies on a faulty keypad circuits  hardware components on the PCB board. This solution below will tell us which components holds and controls the keypad keys to function or work.

Check the keypad pin connector first ensure that it is free from dirt and oxidation.
From the keypad pin connector there are three line filter coils located near to it, have a check on this components and replace if found damaged.
From the keypad filter coils the lines is feeds to a keypad filtering chip or keypad IC, you may then check this chip, trace its line paths and replace if found damaged.
The I/0 Expander Chip is the keypad controller components, which holds and control the keypads including the Touch Control Module. You may also rework or replace this chip for further harder keypad problem repair on Nokia X6.