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I have tested all the peripherals.

good morning, using the HWMonitor the Memory Proximity sensors are at 129 degrees and the ASD test says that the SMC is with a problem. I replaced the Q5850 and U5810, but it didn't work. diode mode: SMBUS_SMC_3_SDA 0.717 SMBUS_SMC_3_SCL 0.716 Do you have any other sensors that I can test?

I can't read the Bios from the J6100 connector, so I removed it, to take the chance that it is interfering.

At first, the SSD already had Big Sur. The system boots up normally. The issue is that it won't let you install Big Sur from the installer.

I tested another BIOS, in the tests it showed an improvement, but in the middle of the installation it shows an error. Is there any component that can be causing this?

is a mac 2015, can you tell me if Bios mac 2017 works on the 2015 ?

To clean the ME region I used the CH341a and the INTEL ME INJECTOR. UEFITOOL NE 57 to check the validation of the Fsys region.

The Bios file follows https://drive.google.com/file/d/1vqFsoQ-aG7MdMEdgU2WgYRbuxU77-lzT/view?usp=sharing

Fsys is okay. I have already cleaned the Me region. Yes.

yes.

Good afternoon, this mac only installs up to Catalina, when I try to install Big Sur it shows an error "Download another version and update again", but this installer works normally. PP3v3_SuS when I force it to shut down it falls to 0V.

I replaced the isl6295 and the SMC removed from the 820-00163 board, in tests at PPbus 12.3V I wonder if the SMC board 820-3332 works on board 820-3662 ?

help

PVCCCORE_PH1_VCC oscila entre 0,354V ~ 4,661V. Achei que fossem U7210 e U7420, então os substituí, mas nenhum resultado. Testei sempre fora da mesa. PP1V8_AWAKE_SW3C 0 ~ 0,881V PMU_TO_SOC_AWAKE_PWRGD 0,170 ~ 0,827 V PP3V0_AWAKE_LDO7 0V ~ 1,435V

sorry, wrong post.

It didn't work, what could it be?

Good afternoon, this mac had a shorted capacitor C7324 causing the PPbus to short, I replaced it but the PPBUS is at 5V. The Vcore resistance is 10 Ohms, too low? Voltage: PPbus: 5V; pp3v42 3.42V; ALL_SYS 0.223V pulsing; Vcore 0V;

I tested another BIOS with the same voltages, with no result. Here is the link BIOS dump I used. https://drive.google.com/file/d/1k1MRz1mZSnCzn-L54XCNB8hlTXxXsek6/view?usp=sharing

using o-scope: L7410 40mV L7420 40mV L7211 40mV L7221 40mV L7231 40mV L7330 1.08V LA650 40mV LA350 40mV It does not go into SMC bypass mode.

We have already performed this procedure, but we will try again.