siemens mc60 display
 

Hi !!!
MC 60 when turn on,there is no lights on display!
I change display but problem is still on!!!
HELP !

Problem is a little µBGA!

Look near SIM reader and you will find it!

Rehot or reball it!

Ok,thx Chris02,but i don't know which BGA is!
Can you tell me mark of part!!!
I already rehot everything near SIM reader,but there is no results!
And how you say i must reball it,or is there something else?
B.R. Chris02 !!!

Make a pic of PCB and I'll show you which one I mean!

Are you set contrast?
Today I have same problem...
http://eh.student.utwente.nl/~landy/Tools(unlock,flashers,etc)/SiemensContrastTool%201.2.zip

I already set contrast,but that is not contrast problem!

hmm i have this problem also ??

Heheh
I know which BGA is, but how reball it,it's very very small,hehe

Got the same problem.. only blue screen, not lcd, and not contrast. Tryed to rehot that little bga, but no results.

There´s a lot of phones like this here, and authorized service is claiming total loss on them. Any hint?


regards,

@vazgsm
Try to change eeprom with freia???
Back of lcd have two colours- orange or green?
Which your's???

So, I met this problem some time ago. The reason was in display light control transistor. Because I have not the part to replace it, I have take the output of the keypad light control transistor (these circuits is separated - I suppose the phone can light up the keypad without display or oposite, and this functions will be unusable).

Solution is wery simpe i ges.... if it that whot i mean.... its two set of lcd on s55 m55 c60 and mc60 series and when you take oder lcd phone work wel bat nothin is on lcd... you must write lcd set parameter to phone.... with martech 2 ist done for 10 second....