So, connected to computer USB, input showing 4.91V, 0.3955A stable.
PPBUS_G3H 12.26V stable
PPBUS_HS_CPU 12.26V stable
PPDCIN_G3H 4.69V stable
PP20V_USBC_XA_VBUS 4.87V stable
PP3V3_G3H_RTC 3.30V stable
PP3V3_G3H 3.23V stable
PP3V3_AWAKE 3.23V stable
PP1V8_AWAKE 1.8V stable
PP1V2_AWAKE 1.2V stable
PPVDDCPU_AWAKE 0.75V stable
PP5V_G3S 0.0V no pulse
PP3V3_G3S 0.0V no pulse
PP1V8_G3S 0.0V no pulse
PP1V2_S3 0.0V no pulse
PPVCCGT_S0_CPU 0.0V no pulse
P5VG3S_CSP1 0.0V no pulse
I don't know what the behavior should be on 5V and no battery, but I think it's okay it doesn't allow boot (correct me if I'm wrong).
PPBUS_G3H 12.26V stable
PPBUS_HS_CPU 12.26V stable
PPDCIN_G3H 4.69V stable
PP20V_USBC_XA_VBUS 4.87V stable
PP3V3_G3H_RTC 3.30V stable
PP3V3_G3H 3.23V stable
PP3V3_AWAKE 3.23V stable
PP1V8_AWAKE 1.8V stable
PP1V2_AWAKE 1.2V stable
PPVDDCPU_AWAKE 0.75V stable
PP5V_G3S 0.0V no pulse
PP3V3_G3S 0.0V no pulse
PP1V8_G3S 0.0V no pulse
PP1V2_S3 0.0V no pulse
PPVCCGT_S0_CPU 0.0V no pulse
P5VG3S_CSP1 0.0V no pulse
I don't know what the behavior should be on 5V and no battery, but I think it's okay it doesn't allow boot (correct me if I'm wrong).