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Do you have a known good BIOS for me to test? Maybe the one I have here is bad... Will check the resistors... Could not find any corrosion and already tried heating CPU, will try also the PCH.

PLT_RST_BUF_L - 3.3V

Hello. Got this board here with VCORE stuck at 1.72V and not chiming. I thought it might be BIOS related so I flashed a new clean file, but still no luck, same results. I'm inspecting the board to see if I can find any obvious hints like corrosion or etc. Board has a few little green stuff but...

Yes, I thought it might be some charged capacitor or something like that. The board is sitting on the bench since yesterday unplugged and is still shorted.

Actually, when my bench PSU cannot supply sufficient current its display show 5.5amps being pulled with a voltage drop. For example, if I set it to 5V 5A and there's a short on the board, the amp meter from the PSU says 5.5A which is the maximum it can supply but the voltage indicator drops to...

Yes, PSU current set to maximum, same cables I always use for repairs, which work 100%. My PSU can supply up to 5 amps.

Diode mode: SSD_PWR_EN_CONN_L - 0.001 PP1V8_S5G - 0.001 PP1V_S5G_REG - 0.000 FULL short on all. Tried injecting voltage on this rails... Nome of them pull more than 1 amp @1V

Removed L8060, short remains on pin2. Removed U8230/80(60 is no stuff also), short remains.

U8640 is no stuff. Will check the others...

Hello. Got this machine here with no power. Costumer says he tried to upgrade the SSD at home and after that the machine stopped working. He says he disconnected power from battery before putting on the new SSD. I tested the SSD on another machine and it works fine, so no shorted SSD. Removed...

Hello. Got this board here, which I'm suspecting it may have a BGA because the top case is bent in the middle. Anyway. Board enters S0, fans spin, but no video. I have VCORE present on L7221 and L7211 on 1.05V, meaning there's no post. I tried a new BIOS that I found on the forum and same thing...

I'm following this power sequence diagram: https://logi.wiki/index.php/CD3217_and_T2_Power_on_Sequence I have all voltages up to PCH_RTC_RESET_L. From P5VG3S_EN forward I have nothing.

Hello. I'm suspecting U9000 is bad, because I have some voltages around it, but it seems not to be outputting expected signals... I have: SSD0_OCARINA_FORCE_EN = 0V PP1V8_SSD0 = 0V SSD0_OCARINA_IREF = 1,130V SSD0_OCARINA_VDD_LDO = 1,5V PP3V3_G3H_SSD0_SNS = 3,3V Diode mode on coils: L9020 =...

Will post everything with SSD on name: HS_P3V3_G3W_SSD0_OUT = 0V HS_P3V3_G3W_SSD1_OUT = 0V HS_PBUS_MAIN_SSD0_OUT = 0V HS_PBUS_MAIN_SSD1_OUT = 0V I2C_SSD0_SCL = 1,8V I2C_SSD0_SDA = 1,8V I2C_SSD1_SDA = 0V (probably because SSD1 is not present on system) I2C_SSD1_SCL = 0V I2C_SSD_SCL = 1,8V...

Hello. Got this rabbit hole from hell here with no power. Charger negotiates 5V on all ports. Around 250mA power draw on all ports. Machine enters DFU, but does not complete restore neither revive option. Board has been well poked around by another store and it got flux on the whole board...

Agreed. Gave up on this one. Already told the costumer. Thanks for the help. Topic closed, unsolved.

Also tried with different USB-C ports

Yes, 2 different original chargers, one 96W, another 61W, 2 original Apple cables, one USB-C USB-C another Thunderbolt 3 Thunderbolt 3. All give same results. Also, machine enters DFU state, but does not complete restore. T2 gets a little warm.

What would you suggest then? I'm out of ideas already... Thinking about throwing this piece of shit on the litter bin.

Yes, and that's what's strangest LOL