Hi there. Quick question. What is the resistor value for R6920. I'm measuring 43.6K and the 19v is not flowing through it from PPDCIN_G3H_ISOL to the otherside of PP18V5_DCIN_CONN_R.
Is this resistor broken?
Is this resistor broken?
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Re: Apple A1425 No Power 820-3462
Hi. You can check here:
https://www.badcaps.net/forum/showthread.php?t=50367
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Goes to recovery when plugged in with another Mac, shows in finder with a question mark and serial number. When revived fails at error 9 (the laptop turns off and on?) In the Apple Configurator when in dfu, gives error restores device removed before restore completed 0xFAA (4010). Tried in intel and m1 based Macs.
History, came in with severe liquid damage and bubbly motherboard
Transplanted t2/ recalled ram, u4730, all 4 nands and u4770.
Below is the log from console, the usb meter negotiates at 19v and goes as high as 2.4A
Apr 1 08:36:25 macs-MBP UARPUpdaterServiceDisplay[1440]:...04-01-2026, 11:38 AM -
Apple MacBook Pro A1425 Retina A1425 820-3462-A Schematic & Board View...10-01-2024, 04:25 AM
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Apple MacBook Pro 13'' Retina A1425 820-3190 Schematic...02-12-2026, 06:19 AM
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I have changes the keyboard and the touch id. on 14 inch Apple M1 A2442,
"option stuck "
It did not help because the lady was playing intensive games on the laptop : The issue with the Option (Alt) key is related to the Mac’s HID system (Human Interface Device), which manages how macOS receives input from the internal keyboard.
The Option key is not physically stuck. Due to intensive use of the Option key during gaming, the internal keyboard sometimes sends an incomplete input signal, causing macOS to think the Option key is still being pressed....01-31-2026, 07:16 AM -
Hi there,
I'm looking for anyone who might have information on Apple's embedded Apple Watch charging daughterboard, ID 820-02601. This is currently used by Anker in their Apple Watch charging products, but likely by other Apple partner brands as well.
You can see the board referenced in ChargerLab's teardown of the Anker Y1811 3-in-1 MagSafe cube - they discuss the "Apple Watch wireless charging circuit" about 2/3rds down the page. It's not pictured, but the board ID reads 820-02601-A, which sure sounds like Apple.
This daughterboard uses an interesting...
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