Instafixx
Active member
Customer said the device was on but not charging. When it came to me it wasn't turning on - maybe battery drained.
It is first drawing 5V and .540 amps and then unplug and replug the charger it is drawing 20V and 0 Amps. This is the behavior in all 3 USB C ports. I get haptic on the trackpad as well. This finding is with everything connected as this device wont turn without a battery.
I scan the board for any corrossion or thermal heat - but none.
PPBUS is 12V(without battery).
3v8_AON
PP3v3_LDO
P1v8_s2
All are present.
CC1/CC2 lines are okay.
Slight heating at U5200 that too after keeping the charger connected for quite some time. Replaced it. Still the same.
DFU revive gets stuck midway at "Installing Software". - It didnt go to DFU mode via the keyboard method - which was strange. I had to jumper.
Check Diode Mode at JT400 and JT5151. All are okay.
It is first drawing 5V and .540 amps and then unplug and replug the charger it is drawing 20V and 0 Amps. This is the behavior in all 3 USB C ports. I get haptic on the trackpad as well. This finding is with everything connected as this device wont turn without a battery.
I scan the board for any corrossion or thermal heat - but none.
PPBUS is 12V(without battery).
3v8_AON
PP3v3_LDO
P1v8_s2
All are present.
CC1/CC2 lines are okay.
Slight heating at U5200 that too after keeping the charger connected for quite some time. Replaced it. Still the same.
DFU revive gets stuck midway at "Installing Software". - It didnt go to DFU mode via the keyboard method - which was strange. I had to jumper.
Check Diode Mode at JT400 and JT5151. All are okay.