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On C5250 I have no voltage, this only if powered by the relative USB port UG400, Instead if I feed from the USB port related to UF400/500 I get 12.25 on C5250. On UG400 I have the following situation: PP3v3_UPC2_LDO 3.4v PP1v5_UPC2_LDO_core 1.5v PPVBUS_USBC2 5v PPDCIN_aon 0v

I have no voltage this only if I power from ug400 while from while from UF400/500 I get 12.25, on UG400 I get PP3v3_UPC2_LDO PP1v5_UPC2_LDO_core PPVBUS_USBC2 5v PPDCIN_aon 0v

I brought everything back to the initial situation, they were UF015 and UF115 which were not in good condition, then I replaced UG260 taken from the donor board and now the USBC port relating to UG400 is stable on 5v and 0.003 PPBUS and at 1.5 and I don't have the 3v8 AON

Yes I put them in the same position I compared the readings ldo the diode mode with a working card and it's regular, I even reassembled the replaced cd3217 on another card and it works normally

I tried to replace all cd3217 with a good board but now all the usbc ports turn on and off, before only UG400 did it, 3V8 AON IN DIODE MODE AND 0.160 LDO OBVIOUSLY TURN ON AND OFF

then the usbc port related to ug400 restarts continuously, in diode mode on 3v8_aon I have 0.060 this after removing cg010

Unfortunately I don't have a similar model, I have another working card but blocked on the way to make comparisons, However I suspect it could be the spi rom of the usb c ports

exactly but when I connect magsafe to the usbc corresponding to JG600 it restarts continuously and rises up to 12.25, while with the magsafe connected to the usbc corresponding to UF400 and UF500 instead it lowers up to 1.5v

on C5250 I get 12.25

Yes I'm powering the card from the USB ports

I repeat the readings but with the fuses in their place if usbc connected to UG400 I have the attempt to start all the voltages are unstable and ppbus does not go beyond 12.30 and restarts continuously at 5v while on the other usbc I get 0.02 A and ppbus drops to 1.5, sorry if I misunderstood I...

on C5250 I have 12.25 I measured the LDOs of UF400 UF500 UG400 with respective USBCs connected and I get LDO. I don't have the same card to compare the readings but based on openboarddata PP3V8_AON it's 0.300 instead I measure 0.157

Always keeping F5200/1 disconnected?

P-IN: 0.563 AUX-DET: 0.570 SMC-RST-IN: 0.565 VDDA/9: 0.467 / 0.465 EN-MVR: 0.606 AUX-OK: 0.641 A/BMON: 0.645 C5220: 68K C560:3364M

he had a fall, the voltage on C5250 is 0.575

I have this card which, if powered by JG600, restarts continuously and 0 to 5v with unstable amperage, however if it is powered by JF600/1 5v 0.37 and then 0.02 stable PPBUS_AON 1.5 and nothing PP3V8_AON

Can someone recommend a useful temperature and airflow to safely remove the ssd nands of a MacBook Pro 820-02020

I would like to have some advice regarding the possibility of doing a swap of the processor and the NAND, is it possible to carry out the removal and installation of the M1 CPU without a BGA station, but with only the 861.. If possible, what temperature and speed do you recommend I use?

Replacing the battery

Hi, I have this board that, gets 20v but loops 0.000 to 0.003a PPBUS 12.30, no liquid damage.