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yes i did. seemed ok to me. I installed a NEW SMC. now i need to program but this machine just refused to boot via an external drive . The device is much faster now. only thing left is to program the SMC so that max fan spin stops

I put the machine on SMC Bypass mode (with no battery) . The machine operated faster than normal. Can it be a SMC issue?

Mine is 820-00165.

Replaced U7700. Now device turns on.

Q420 lines arent shorted. PP2v5_AWAKE_NAND is 3.4V Has an exact same issue before. Had replaced U7700 that time . https://boards.rossmanngroup.com/threads/macbook-a2338-820-02020.65392/

Q420 lines arent shorted. PP2v5_AWAKE_NAND is 3.4V Has an exact same issue before. Had replaced U7700 that time . Will get back.

i do not follow. Please explain

RN420/3 heating up. No shorts. Removed them and now U7700 heats up.

Device came in as not turning on but i plugged in the charger it turned on. Worked for a day and then will not turn on. I take out the board. Corossion on and near the Wifi chip - but no shorts. Replaced the Caps. PPBUS_AON is 8V. Removed the Fuse - get 12.3V at C5250. PP3v8_AON is 3.8V. Since...

SSD is working. Fan Spin high and device very slow. tried a different ssd as well.

PCIE_CLK100M_SSD_P/N is shorted when SSD inserted and without SSD the diode reading is .300 Q5810/30/60 is readings are normal. Still replacing them just in case.

I dont know how to test them. Can you guide me?

Can you help me understand Q5230 and Q5240 because CHGR_PHASE2 and PPDCIN_AON_CHGR_R are not generated when battery is connected. i dont why i feel the issue is in this section of the board.

Should i replace it?

Same. Device is running very slow as well.

Not charging. Checked Installed this MLB on a known good chasis. Same issue. Issue with Logic Board. Did DFU Restore as well.

Its the same with LIO Board/Flex. Traces also good.

With all connected except trackpad - i get these voltages now and device turns on as well. Couldn't check the charging as TP/KB not working. CHGR_PHASE1/2 PPDCIN_AON_CHGR_R PPVBAT_AON_CHGR_R / PPBUS CHGR_BGATE

But the point here is all voltages are present without battery connected. Can it be a DFU Restore Case? I mean DFU revive didnt work. Also since all voltages are present when put on charge and a few are missing as soon as the battery is connected the circuit which tells the logic board to...

Its .221