If the issue is not solved with changing the SSD controller, till now, I haven't seen a solution for the UART error 80871055.
Some tried and change the not married SSD NANDs but stuck to the same error.
Hello,Well,
I’ve made some progress on this console.
As I no longer had any DA9065s, I replaced them with RT5126s...
By removing the Southbridge and re-soldering two new capacitors (C7032 and C7035 on the EDM-20), I’ve restored the LX and Vout1...
I strapped a metal bar to the motherboard, forcibly flattening the bent board.
I strapped two metal bars to the motherboard, forcibly flattening the bent board, then soldered the APU.
Latest update: By reinstalling the APU with reballed solder balls, I seem to have resolved the freezing and shutdown issues. However, before this, I failed three consecutive times to reinstall the APU because the warped motherboard caused...
So work was done to the NOR.
The WiFi firmware are from my knowledge the offsets 0x00100000 - 00107BFF and 00110000 - 00117BFF.
Beside the WiFi firmware are offsets for configurations of the board (southbridge version/WiFi Version/...) stored...
Yes, You wrote it, but it is not what I expected.
And as I read your posts, I want to be sure to understand your case correct and asked You if it is correct what i wrote.
You moved APU + SSD NANDs + TPM from an edm-020 to edm-030 board. -> result: only beep, no light
The original edm-020 board had a j20h100 WiFi module and the new edm-030 board a j20h104.
So you added the components for the 1.8V WiFi rail and...
E1xxxxxx = XDPE phase pwm controller error VRM 2 phases
E2xxxxxx = XDPE phase pwm controller error VRM 6 phases
I would check the XDPE controller and the VRMs at the both phases.
I haven’t performed the UART read yet. I’m currently using a known-good dump from a 1215B 61G, while my board, which is missing the BIOS chip, is a 1216A 61G. Do you think this could be the problem?
That said, I’ll get a dump for a 1216A 61G...
Be Sure you using RTD2175P NOT other incompatible model, and since EDM044 board has significant change on the HDMI ic circuit, 0.9v line is likely only related to the "RJ=" CHIP(RT9048AGQW)
There are two 0.9V lines. One (neon green marking) generated from the 1.8V by a little 5 legged converter and one (light green marking) 0.9V by a qfn chip 'RJ='.
EDIT: It is the ciruit for the MN864739 HDMI chip. The layout for the newer...