Hardware switch oled not turn on. no current absorption

[Man5on85]

Hi, hope someone can help me.
I have an OLED switch that doesn't turn on. connected with USB tester it does not give any absorption. the connector seems good because there are 5v on the board.
on the capacitors circled in the photo I find a low resistance of 20ohm
removing the M92T36 and p13usb chips the value remains very low.
Thanks in advance for advice on what to check

View attachment SwitchOLED_85e.jpgView attachment SwitchOLED_91e.jpg

 

[psycho-neon]

I have the same issue that came for repair, even after removing m92 and p13 short still there. I ruled out when i removed the tegra chip. Unfortunately its dead for the switch.

 

[Man5on85]

yes, as I imagined, I was waiting for someone's confirmation. some are capacitors that go directly under the tegra chip. Thank you for your reply

 

[romchik971]

Basicly, you can try to inject 1v on power rail of cap and look if there is a draw, if u have draw, then look for hot spot and remove broken element. Just be sure to limit it with 1a