7250 no lcd .. stange.
 

Hello i have following problem with 7250.

phone was working, but interupting audio during call.
i reballed Upp, Uem, lcd was still working..
i tried to flashed the phone not assemble i just keep it in my hand..
then i smell stench.. in area above UEM ..
from this time LCD is no more working .. any idea ?
i tried to change LCD connector, lcd ,
flashing last version, i checked all conection from lcd conector X302 to testpoints , all is ok.. but LCD not working ..
Any idea ??

Pali

Broken Track.

GreetZ

hmm.. broken track..
but what to check ??
from lcd conector to TESTPOINT are all ok.
so what else to check ???

Pali

when i power on the phone , leds on keyb and lcd lights up..
but lcd is only blue..

Not only tracks of LCD else it can be many things,tracks to UEM, UPP etc...

GeetZ

i removed UPP and UEM , and checked tracks from x302 to UPP and UEM pins.
all is OK !!!
so what now ?

Pali

UPP : A7,B6,C6,C7
UEM: B1, M8

maybe when you try to repair the phone it damge the lcd, did you try to replace or check a good 1.

try change small ressitors behind batery conector.All of them,try and post.

regards