Hello everyone!
I’m new to switch and new to this forum
I first time tried to mod oled sw with picofly rp2040 and it works on first try
After 2 days of normal use on cfw, I let the switch sleep with almost full battery
8 hours later, I pick it up an can not wake the device. First is the normal joycon home button, then power, then reset hold 20sec, nothing happen, no LED from pico fly.
I disassemble the switch, measure 3.3v ( 2 bridged caps that provide 3.3v for rp2040) and got 0.00v
I pull out the battery and decide to remove the mod chip first by detach 2 flex cable only- still nothing
I removed completely the mod chip and it’s component, still no 3.3v rail, no boot,
I measured in diode mode 3 points:
Data0: 0.423-0.417
Scratch pad near cpu: 0.424- 0.417
A: 0.423- 0.417
I disassemble the board to access bottom side, plug in the battery, press power button by shorting 2 pins responsible for power switch, measure the voltage rails created by Max77620, almost zero reading for all rails, only 4.1v present on input obviously
Can this switch still be saved? Thanks
I have an oscilloscope - logic analyzer at hand, please tell me what can I try