mardi 10 février 2015

GT-I9505 blank display, how to debug board?

Hello all,

I'm new here, I have some technical problem, I think here is the best forum to get appropriated help.

I have a I9505 with a blank display, the rest of the phone seems to work well, I can get to download or recovery mode.

Since I thought my display was the problem, I bought a new one and change it, but the problem continues.

Now I'm starting to wonder if it's not a board issue.

I could find some orientation here in the forum, regarding checking some components on the board and changing it:

/f258/i9505-schematics-1840305/

/f258/i9505-black-display-1728331/



Could someone tell me how to debug my board so I can know that the problem is really on the board.

How do I check if my emi filters are ok? Where should I measure?





Thanks,





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