firebroker
New Member
Last Activity: 10-19-2024, 03:09 PM
Joined: 05-08-2022
Location: York
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Hello Comunity, lets fix all broken stuff
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Re: a1989 5V 0,25A
it is still the same readings :/Leave a comment:
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Re: a1989 5V 0,25A
Ppbus_g3h 12,29vLeave a comment:
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Re: a1989 5V 0,25A
And today the same problem appeard after nearly 10 days of active usage of macbook.
After few hours of youtube watching I wanted to charge a macbook and nothing happened.
20V 0A. Restart did not help, and then my battery went to 0% and is dead again
I am stuck at 5V 0,25A
SMBUS present, I2C present
any ideas for help ?
thank youLeave a comment:
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Re: a1989 5V 0,25A
I2C_PWR_SDA 1,79V
I2C_PWR_SCL 1,79V
SMBUS_3V3_BATT_SCL 3,36V
SMBUS_3V3_BATT_SDA 3,36V
Battery voltage is 0V
PPVBAT_G3H_CONN 12,6V after 4seconds 0,2V, after 4seconds 12,6V.. cycling
and see what happens
I have checked charger meter and suddenly 20V there and board started to boot. I assembled the whole machine back. I don't know what happened, but at the time of writing this post, MacBook started working... a miracle
Yesterday I did a reflow of U9000 and U9080 and did not...Leave a comment:
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Re: a1989 5V 0,25A
thank you for your fast replay and time.
readings: pin 2, 35, 53, 75
U3100
0,493
0,527
0,515
0,534
U3200
0,497
0,529
0,517
0,535
UB300
0,498
0,530
0,518
0,537
UB400
0,496
0,529
0,518
0,534
PPBUS_G3H - 12,29VLeave a comment:
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a1989 5V 0,25A
Hello, I am trying to repair my MacBook 820-00850 after small water damage. here are some facts:
USB-C port burned pin
liquid damaged pin on power button connector (
all ports stuck at 5V 0,25A, I can enter DFU (than 20V present and 0A), restore revive not working
I am missing all SSD power rail and enable signal SSD0_VR_P2V7_EN from U9000 too
L9080- diode reading is 0,4
L9080- right after unplugging charger is 0,078 and slowly rising to 0,4 (is it normal?)
can you advise me please ? thank you -
Re: New Members - please post your introductions here
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