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820-00244 No boot, PPBUS_G3H initially present, voltage slowly drops
820-00244 here, doesn't boot. 20V from USB-C charger but no current. No S5 through S0 power rails. PPVBUS_LIO, PPDCIN_G3H, PP3V3_G3H and PP3V3R3V0_AON all present and correct. PPVIN_G3H_P3V3G3H 20V but should be 8.6V according to schematic? PPBUS_G3H should be 8.6V but starts at around 8.2V...- macdude101
- Thread
- Replies: 19
- Forum: Macbook Logic Board Repair Questions
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820-00244 Boots, slows to a halt, freezes and doesn't boot successfully for ~2/3 hours
Got an 820-00244 in that the customer explained boots to the login screen, or occasionally to the prohibitory symbol, but then very quickly slows down until it freezes and stops responding. Customer mentioned getting the "the computer restarted because of a problem" alert if they're able to log...- macdude101
- Thread
- Replies: 7
- Forum: Macbook Logic Board Repair Questions
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820-00244 All power rails present, S0 state, not booting
Got a MacBook 12" A1534 2017 (820-00244) here which at first glance draws power, trackpad becomes clickable, however caps lock key does not light and it doesn't output to an external display. Noticeably it gets very hot compared to a good board/laptop when left alone. Nothing visible on the...- macdude101
- Thread
- Replies: 7
- Forum: Macbook Logic Board Repair Questions