Hi, I managed to repair an EDM-031 board that had a UART error code of c0020303 (Southbridge issue), but the BIOS is corrupted. I haven’t been able to find the right one, so the Wi-Fi isn’t working. I need a BIOS for the CXD90061GG chip and the J20H104 Wi-Fi module. Alternatively, is it possible to modify my current BIOS?
Thanks in advance for your help.
I’m not sure, but the combo 61GG and J20H104 seems to me unusual.
Were 61GG and J20H104 original on the board?
Yes, everything looks original, and I think I have two of them like that. I only have 3.3V on the board, so the J20H104 is the right one for me. As for the SB 061, I didn’t see any indication on the board of a swap with a 69. From memory, the other number identifying the board ends in 31.
If I wanted to switch to a J20H100, I would need to be able to generate 1.8V—but is that possible?
Or can I use a 069 instead of the 061?