Tmobile samsung galaxy s3 t999 hardware repair

[clearchris]

Hi.

Does anyone have a schematic for a Samsung Galaxy S3 T999?

The phone reboots under heavy load on the internal flash chip(rom backup / flashing). It succeeds when placed in a freezer to flash. I have tested it with the CPU maxed out (no load on the flash chip) with a battery discharge program and have no problems.

So, it seems to me, to be a flaky flash chip. I assume the bga needs a reflow.

I'm thinking a few minutes in a pid controlled toaster oven could cure this. Alternately I could reflow the flash chip (if I can find it) with a hot air station. Or I could do a ghetto repair by putting pressure on the chip with some paper to hold it down.

Any ideas? Thanks!!

[Th3_uN1Qu3]

Re: Tmobile samsung galaxy s3 t999 hardware repair

Post a picture of the main board and i'll show you where the flash chip is. Hint: It's large, it's near the CPU, and you can find it by a simple google search of its part number.

[clearchris]

Re: Tmobile samsung galaxy s3 t999 hardware repair

Here is a pic i took from ebay. The only camera i have is my phone...



By your description, the chip with the round white sticker?