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re: S7 black screen, blue light unresponsive. Bad software flash?

Posted on 11/8/18 at 6:48 pm to
Posted by htcthc321
Member since Oct 2010
1664 posts
Posted on 11/8/18 at 6:48 pm to
Are you familiar with flashing ROMs?

You would most likely need to ODIN back to stock just to see.

If not, it could be possible hardware failure somewhere
Posted by Napoleon
Kenna
Member since Dec 2007
69350 posts
Posted on 11/8/18 at 8:57 pm to
I'm pretty technical.


I couldn't get it to go into recovery. I looked online and saw they have a "jig" that forces it into Odin.
I saw they made this "jig" by bridging pin "4" and pin "5" on the usb (red and yellow wire if standard) with a 300k Ohm resistor. I didn't have a 300k but I had a single 100k, a 75k and a bunch of 10k and 1ks. So I got a bread board, made a 300k resitor and got it into download mode.

If I press down, it just goes back to the black screen and blue light. If I press up it says "download do not turn off target".
After 20 minutes of that I reset it again.

So I am not sure where to go next.

Posted by Napoleon
Kenna
Member since Dec 2007
69350 posts
Posted on 11/8/18 at 8:58 pm to
I've read the number one cause of this issue is motherboard failure. i'm kind of scared.

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