Nokia X3-02 Touch Not Working Problem

Nokia X3-02 Touch Problem Solution.

At touch connector cheack marked point 

polarity.if polarity is ok then replace touch

digitizer with new .

If problem not solved then mach the touch side 

connector same as pcb side touch connector xr yt gnd xl yb.

now check these green marked parts as picture shown below.

Normal rehot or change touch controler ic of touch problem

not solve but first 100%confurm that touch ic not working

and problem ocured in touch ic.

how to check touch on sunwa multi meter.

prob one on xr and prob 2 on yt now touch on touch screen

and check meter show you polarity when you touch the touch screen.

same way to chek xl and yb in many touch like as chania and nokia

note these mathed is for not digitizer touch this is for only non digitizer touch pad

like as chaina n8 touch.

if touch digitizer use ic on strip you cannot check her by multi meter.

best way to change the touch understood the xr -yt -gnd-xl-yb point ways

from connector and touch connector side.

touch digitizer  ic use 3-7 volts on big brown capistor first check 

that ic volts come properly.

i hope you understood my tips for solving the touch problems

in many touch mobile phones.