Hacking Oooops, my hackable console isn't anymore...

[yanosh]

Hello,
let me sum up the things.
I have repaired a broken switch (model before 2018).
All was successful, i was happy as it launched binaries like atmosfere and Co.
This was before the drama...
All was working, excepted the touch screen and wifi, not a big deal but i wanted to check what was wrong.
So i checked, and since this day the console don't go anymore in RCM mode (or to be clearer, it seems to be in RCM but not recognized by tegrarcm).
What has been done:
- changed the jig (it works on another console).
- changed the right joycon rail.
- changed USB C cable.
- unplugged all non necessary components (bluetooth, wifi, speakers, game card reader block)
- Cleaned the motherborad with isopropyl alcohol.
- Checked with microscope the usb C plug and cleaned it (it's shining).
- tried with 3 different computers.

The console boots fine in normal mode and works.
When plugged with USB C to a computer, the battery is charging.
But when i try to get it in RCM, screen remain black but not recognized in TegraRCM or its DOS counterpart.
When i make the test with my patched console, she goes into RCM and is recognized so the jigs works.

I noticed that the connexion of the right joycon into the motherboard is in bad state (but seems to work as joycon is recognized when plugged to the console).

All help will be welcomed as i am lost with those symptoms.

I made 2 pictures of the joycon plug (unplugged and plugged)/



Thanks

 

[Anxiety_timmy]

try removing the nand from the board (it should instantly boot into rcm if you do that on boot)

 

[yanosh]

Thanks for the reply.
Did it but no changes.
Yesterday, while i was messing up with this problem, it worked !
The only noticeable thing i did if i remember was putting it on the dock and playing with buttons.
After this, i plugged my usb cable and bam ! Rcm ok...
I made a nand copy, installed some game and let it turn all night long.
Today, i played with some homebrew installation, put it off and on, made a lot of RCM mode (all sucessful). I went for a nap (my children played a game on it).
After my nap, i wanted to put it in RCM again and.... no way !
Same problem
I tested with another battery, same thing.
I am very lost

 

[Anxiety_timmy]

are you sure you have a good cable?

 

[yanosh]

Hello,
yes tested with different cables and computers.
Note that i have also a patched switch that go rcm without any problem with the cables and jigs i have so it is not (cable, jigs or driver related).
I have tested continuity on the usb port (from port to the filter, all is good (i have continuity on port 5 & 8).
I also removed the C7 diode, same result.
Do the PI3USB or M92 IC can cause this problem of no data on usb port?
I've ordered a new battery just in case, i should receive it monday.
Thanks

 

[Draxzelex]

You've tried other ports as well?