Rezid
New Member
Last Activity: Yesterday, 04:03 PM
Joined: 03-22-2021
Location: Phoenix
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Looks like the DF602 I took from my donor board was also faulty. Swapped it again and everything is working. Thank you for your help. -
I don't know how I missed it as I measured it in diode mode before, but found that PPVBUS_USB1 was shorted. Injected 1v and DF602 lit up under the thermal cam. Removed it and measured PPVBUS_USB1 again and the short was gone. If I replace it with one from a donor board the short comes back. If left empty, the other port attached to PPVBUS_USB0 draws 20v 0a.Leave a comment:
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Hey thanks I've got one already. Screen on there remains black and doesn't show current draw.
Both sides of F5200 are about 2.7M ohms. Diode mode is .48Leave a comment:
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Macbook Air A2337 820-02016 No Power
i've got an A2337 820-02016 that has no power. No sign of liquid damage and no obviously damaged components. The board looks brand new. USBc amp meter does not turn on when plugged into either port. I've tried multiple known good chargers and usbc boards. No shorts on any of the large coils. Not super familiar with diagnosing Macbook boards so any help is appreciated.
USBC1_CC1 = 1.6v but fluctuates to .9v
PPVBUS_USBC1 = 0v
PP3v3_UPC1_LDO = 0v
PPDCIN_AON_CHGR_R = 0v
PPVBAT_AON_CHGR_REG = 0.07v
PPBUS_AON = 0.07v
I'm thinking... -
pretty sure this is it let me know otherwise...Leave a comment:
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Lenovo E14 Gen 2 TPM chip swap for data recovery
I have a Lenovo Thinkpad E14 Gen 2 that's not powering on. GE4B0/GE5B0 NM-D011 is the board number. Not interested in fixing the board, but the data on the drive is important. It's not backed up anywhere and unfortunately has bitlocker enabled on it with the recovery key also not being saved anywhere. Does anyone know if it would it be possible to swap the bios chip U2 and the TPM chip UM1 to another working board to get the data back, or would I have to try and fix this board to recover it? -
Dell Vostro 7500 schematic/boardview request
Looking for
Dell Vostro 7500 Mockingbird-H N7 15 19711-1 schematic or boardview
Thank you! -
Re: MacBook Air 1466 Internal SSD not detected
I had sort of the same issue earlier this week. Same 820-3437 board wouldn't recognize any SSD I put in if I tried to boot to Big Sur, Catalina, or High Sierra installer. I ended up just using internet recovery which did detect the drive. I installed Mavericks through that then just went through the slow process of upgrading to Big Sur. I believe it was a BIOS issue and not recognizing APFS but can't really confirm that.Leave a comment:
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