09-25-2020, 04:20 AM
(This post was last modified: 09-25-2020, 04:27 AM by User 18618.)
(09-24-2020, 12:59 PM)agD0i7rY Wrote: if I understand correctly, it could be a problem with the battery calibration or the OS detection of the charge level?
The battery status should be treated as an estimate, it is not accurate.
Regardless, if your battery depletes to 0% overnight, this isn't the problem to address... yet.
(09-24-2020, 06:11 PM)lot378 Wrote: This is a worry there with pulling the battery if the Quectel device is still running, it could cause corruption within the device
This issue should be solved on UBports and pmOS CE (1.2+) mainboards. However, on Braveheart:
Quote:If proper power down is to be implemented in the kernel for the modem, to allow safe shutdown of the modem before turning off the 4g-pwr-bat, kernel has to be able to signal to the modem to shut down and wait 30s.
This is not possible on braveheart.
Without this signal, kernel can't do anything to shut down the modem, and would have to rely on userspace to properly manage the modem power up/down sequence. Relying on userspace risks users shutting down the modem without proper wait time of 30s, risking modem damage (flash data corruption).
