Hello. I have one 820-01700-A macbook pro. device was working battery changed Tested for 1 day no problem today when I turn on the device the keyboard + touchbar + speaker does not work, I reinstalled the software, but the result is the same. Headphones have sound but no sound out. the keyboard has backlight but the keyboard is not working the touchbar is not working. No liquid damage on the motherboard. R5103 1.8v available. keyboard J6701 socket 1 no standing 1.8v available. what missing voltage might have affected these 3 hardware?
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820-01700-A macbook pro
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Re: 820-01700-A macbook pro
Issues after the battery change?
Check the ESD diode linked to the smbus lines (SCL and SDA) on the battery connector.
Carefully measure the voltage to ground of each pin of the battery connector. Post the pin # and each voltage.
If either the SCL or SDA pins are low, the smbus interconnect is not working due to a damaged esd tvs diode from an ESD surge event. Then the ESD diode has to be removed / replaced.
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Re: 820-01700-A macbook pro
The battery is dead?
Review this thread and resolution:
https://boards.rossmanngroup.com/thr...charger.61444/
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Re: 820-01700-A macbook pro
R5221 resistor shows 1 input 1.8v 2 no 1.7v. with the battery installed. the battery is charging, the device turns on, but still the keyboard + touchbar + speaker is not active. There is sound in the headphone output. these 3 hardware is not working .PPVBAT_G3H_CONN voltage 12v available.Last edited by kartal; 04-26-2023, 07:24 AM.
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Re: 820-01700-A macbook pro
Did you remove the board and trackpad before replacing the battery? Is the battery a genuine Apple battery or generic/third-party? Did you damage the battery data cable?
This sounds like physical damage to the board. Inspect closely. Make sure cables are not cracked/damaged.
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Re: 820-01700-A macbook pro
Originally posted by mon2 View PostCheck your voltage to ground of
PP1V8_SLPS2R
P1V8G3S_EN
PP3V3_G3H_T
What are the measurements?
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Re: 820-01700-A macbook pro
Originally posted by ugamazing View PostDid you remove the board and trackpad before replacing the battery? Is the battery a genuine Apple battery or generic/third-party? Did you damage the battery data cable?
This sounds like physical damage to the board. Inspect closely. Make sure cables are not cracked/damaged.
battery is not original apple but same quality battery. The device worked flawlessly for 1 day after the battery was changed. The next day, when they turned on the device, the keyboard + touchbar + speaker sound did not work. The device is charging, it works with both the adapter and the battery, but these 3 hardware do not have voltages, I can't see any problem, I can't see any physical problem. There is no broken piece on the motherboard. I tried with another battery, same result. This is the first time I have encountered such an error.
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