Hi,
This is my first M1. I feel a little lost and not knowing where to start.
The machine had a liquid damage, next to UC300; UC710; JR940 and UP900.
I did reflow to the IC's. In the measurements I didn't find any low resistance value (short circuit) and the IC's output voltages are correct.
With the battery disconnected, the machine is in a loop. The chime is heard, it reaches 20.3V for 1 second and returns to 5V again.
With the battery connected, it also loops. But after restarting 6 times, it apparently ends up booting (it always remains in 20.3V during de loops, doesn't fall to 5V). But only the desktop image and the mouse appear. The icon user does not appear, not even to enter the password.
Most likely I will have a short circuit, which I am not able to identify.
This is my first M1. I feel a little lost and not knowing where to start.
The machine had a liquid damage, next to UC300; UC710; JR940 and UP900.
I did reflow to the IC's. In the measurements I didn't find any low resistance value (short circuit) and the IC's output voltages are correct.
With the battery disconnected, the machine is in a loop. The chime is heard, it reaches 20.3V for 1 second and returns to 5V again.
With the battery connected, it also loops. But after restarting 6 times, it apparently ends up booting (it always remains in 20.3V during de loops, doesn't fall to 5V). But only the desktop image and the mouse appear. The icon user does not appear, not even to enter the password.
Most likely I will have a short circuit, which I am not able to identify.
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