December 24th, 2012, 07:24 AM
Join Date: Apr 2011
Device(s): Samsung Galaxy Note 3, Samsung Galaxy SII Silver Edition
Carrier: Not Provided
Thanked 83 Times in 55 Posts
I have revived it a little, I have the screen working as when I plug in the charger, the battery indicator now shows, I just can't get it to boot the system up at all.
Will keep trying.
Edit; Day 13: I know that there is power running through the chips under the heatsink above the SD card slot and to the right of the sim slot as I can get sparks by running a small screwdriver across those areas.
I've riced the phone 3 times and it still doesn't work so it's not a moisture problem.
Home key works as the screen lights up when I press it, while charge screen is showing.
It may just be the power button circuit leaf that is the problem- of which I could replace and solder on myself. However I figure this isn't the solution as before the phone died, I had the screen working half the time, just not showing it (I could get music to play while the screen was black by remembering where the menu options were located). However again, the screen does not light up to full brightness after pressing the power key while on the charge screen, so...
(While the screen worked without showing it, the capacitives lit up, now they don't)
I also forgot to mention that before the phone died, it failed to shut down properly a couple of times, it would theoretically shut down, but the bottom keys stayed on and the phone heated up quite a lot. I have eliminated the batteries as the problem.
I've looked over the whole circuit board with a magnifier and can't see any problems, but it definately seems as though there is a dead spot somewhere, the only clues I have are:
*Power button doesn't seem to to work or be acknowledged by charge screen, even after roughing it up a quite bit
*Bottom capacitives do not light up, which should happen when pressing the home key (which does work) on the charging screen. So something is preventing that.
*Volume buttons work as they do light up the charging screen.
*Vibration mechanism works as demonstrated by reaching full charge, so power is getting up there.
If only there was a micro usb plug in diagnostic tool that gives error codes, like for cars.
Last edited by Gearu; December 31st, 2012 at 05:41 AM.