Despite latest tuning (see previous article), the battery drain was still there, less severe, but still..
There I decided to root the tablet and install magisk.
Download the APK, copy/paste it and rename it to zip and flash it with twrp.
Reboot and install the apk.
Launch the app and let it update the tablet and reboot.
Then install xtrem-battery-saver in magisk as a module.
Here below my config.
While on low power mode, we are changing the CPU governors to powersave (android should do that while on power saving mode but just to be sure…).
While on screen off, we are disabling cpu2 to 7 and setting cpu governors to powersave on cpu0 to 1. Also we setting lower priority on google play services. Last but not least, we are forcing doze mode to light.
This rather aggressive config paid off : i can spend a whole day on screen off without losing any battery power.
version=2
delay=3
log_file=/sdcard/XtremeBS.log
log_level=1
screen_off={
handle_cores=cpu0 cpu1
disable_cores=cpu2 cpu3 cpu4 cpu5 cpu6 cpu7
handle_gms=nice
kill_wifi=true
keep_on_charge=true
doze=light
}
low_power={
keep_on_charge=true
handle_cores=auto
disable_cores=false
handle_apps=false
allowlist=/data/local/tmp/XtremeBS/apps.allow
denylist=/data/local/tmp/XtremeBS/apps.deny
handle_gms=false
handle_proc=false
proc_file=/data/local/tmp/XtremeBS/proc.list
low_ram=false
doze=false
kill_wifi=false
}
charging={
}
manual={
}
boot={
}