Nokia 1508 Full Keypad problem ways solutions jumpers tips and tricks of Nokia 1508 Full Keypad problem.

Nokia 1508 Full Keypad problem ways solutions jumpers tips and tricks of Nokia 1508 Full Keypad problem.
Here are the links of repairing diagrams of Nokia 1508 Full Keypad problem ways solution.
you can solve easly Nokia 1508 Full Keypad problem by the repairng diagrams of Nokia 1508 Full Keypad problem which are given below.
If you have some knolage about repairing so you can easly pick the repairing process of Nokia 1508 Full Keypad problem which is shown in figure.

If you can't understand the repairing diagrams which are given below so don't worry.
I am also giving you a littel discription of this image.

Here is the discription of Nokia 1508 Full Keypad repairing diagram.

Here's the solution for Nokia 1508 keypad not working keypad failure or problem. May this solution may possibly help if there are ceratain the keys on device stop working or responding.
To fix keypad problem, You May first check and clean the membrane keypad and touch pads for Possible oxidation and corrosion build up. Each Particular keys Were Writing a connected group or one connection, so there's It Mean if only one or two keys keypad That does not work, there is a Possibility May thats the problem lies on an open or cut-off line connection paths. You May refer to the below solution for tracing a Particular Which does not work or respond.
You May just not working a key route to Other key Which is Also associated or connected to it. The inner core and outer core Both have differential group or connection.
Here's the keypad contact pads Inner and Outer core layer or group connection.
Note: this differential May or May not accurate to Other units in 1508.
Inner Core:
Group A - left soft, send, 1, 4, 7 and * keys
Group B - up, select, left and right keys
Group C-down, 2, 5, 8 and 0 keys
Group D, right soft, 3, 6, 9 and # keys
Outer core:
Group A - soft left, up and right soft keys
Group B - sendmail, left and down keys
Group C - select, 1, 2 and 3 keys
Group D - right, 4, 5 and 6 keys
Group E-7, 8 and 9 keys
Group F *, 0 and # keys
Were all of the keys connection connected directly to the main CPU IC, Also Some problems was cause by a firmware or software Interruption.

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