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We checked good board with results: Customer Board: 3V8_AON - Diode Mode to Ground --> 0.14 Donor Board: 3V8_AON - Diode Mode to Ground --> 0.34 Customer Boards: Diode Mode to Ground for PPBUS_AON - Diode Mode to Ground --> 0.48 Donor Boards: Diode Mode to Ground for PPBUS_AON - Diode Mode to...

PPBUS_AON - Diode Mode to Ground --> 0.47 3V8_AON - Diode Mode to Ground --> 0.14

PPBUS_AON is 8.9v and 3V8_AON is 1.7v. When power connected, board is making ticking sound. I put the board under the thermal camera and I see Q5840 has weird temperature rise on one side. Check the attached thermal picture of the element. Please advise what to do next.

USB C Ports taken from the same model. Exactly same. Connected to the board without connecting board to the battery. Just board, USB C ports and USB charging cable. It shows 5v 0.47a.

Hi, We have MacBook Pro that has one of the USB C port is corroded. We removed it and put new one. Now both port shows 5v 0.47a. This when the board is removed from the laptop case and batter. Please advise what is the first thing we should do for this case? Thank you Z

Thank you very much. The recovery mode appeared on Apple Configurator. The device is charging well 20V and 1.85 amps. But no screen and no chime. What can be next step?

Thanks for your help. So I connected new switch to SW010. The photo attached. Please look at the photo. If it is correct I'm going to assemble the Logic Board back to the laptop. The question is when do I need to press the switches? Before giving power or after giving power? Please guild us

We are missing element on SWE010 position. We only have pads there. Should I connected wires on to 1/SWE010 and 2/SWE010?

It does not go to disk target mode. I have tried a lot. Do you know what the apple authorized workshop has that we don't have that they can recover data in DFU mode? Also we are not owner of the laptop. Can we still take it there? Will they do data recovery?

We soldered to wires to the mainboard. We plan to assemble the laptop and try to turn on it by shorting the cables. Is this correct? We need advice here.

Hi there, We have a MacBook that does not boot correctly. It says The version on the macOS on the selected disk needs to be reinstalled. We need to get the data off form the MacBook before erasing it. The thing is whatever we do on that MacBook the pink screens flashes once and the MacBook...

I am trying to connect external switch to force DFU mode. Reading logi.wiki web page. So my board is A2179 and it says I should connect the wires to between pin 1/R8010 to pin 1/C7845, or other convenient 1V8_SLPS2R point. I want to get confirmation that I am doing correctly. Basically we want...

https://logi.wiki/index.php/DFU_Mode_Restore_(Macs)#DFU_Mode_using_external_switch I found this.

I don't know how to do it. Can you please guide me?

Hi, The Apple Configurator doesn't detect the Logic Board. What should we do next? Thank you

Sorry for that. See power signals as requested. 3V_G3S --> 3.3v 1V8_G3S --> 1.8v 5V_G3S --> 5.1v

All the same P1V8G3S_EN --> 1.8v P3V3G3S_EN --> 1.8v P5VG3S_EN --> 1.8v

Here are the readings: P3V3G3S_EN --> 1.8v PPVIN_G3H_P3V3G3H --> 12.6v PP3V3_G3H_RTC_R --> 3.2v PPVCC_NAND_SSD0 --> 2.5v What do you think?

Hi there, We have MacBook Air A2179 doesn't charge and turn on at all. We removed Logic Board from laptop and inspected under the microscope. Looks like there is no visible damage. We checked all port using a USB-C meter. The laptop is stuck on 20v and 0.05 ampere. I need your help in this...

Hi, So voltage injection helped. We found shorted capacitor on the Logic Board. We removed and MacBook works fine. Thank you for your help.