820-01521-2 A1932

[iremont]

Macbook goes to 20v and no power, i noticed when i try to dfu, it goes to dfu and then restarts after 1 sec dfu, what to check. i cant get stable dfu mode.

 

[2informaticos]

PPBUS_G3H and T2 voltages are steady?
Did you try with known good battery connected?

Check for short and voltage pulse on all big coils.

 

[iremont]

PPBUS - 12.62
T2 voltages steady,
After changing bl ic now its stable in dfu but cant restore,
20v 0.45ma

 

[2informaticos]

SSD and G3S voltages come on?

What error get in DFU?
Tried both revive and restore?

"Did you try with known good battery connected?"