After Android Pie Update the best way
Recovery mod
Wipe data / factory reset Yes
Wipe Cache Recovery Yes
Reboot system now
After Android Pie Update Zenfone 5 treatment
1. Wipe cache particion, rebot now
2. disable off adaptive battery, turn on battery saving
3. Disable mobile data, wi-fi,bluetooth,location
4. Location, disable wi-fi,bluetooth scanning
5. Wi-fi preferencess, turn off automatically
6. Disable google, chrome synchronize
7. Google play store, settings, disable synchronize, auto-update apps - dont auto update or wi-fi only. Best- dont auto update.
8. REBOT NOW.
9. Settings,Apps & Notifications,openning apps, press at the top display system, battery, disable background activity. Do it manually for each and system programs. Everything will work perfectly.
10. Settings,Apps&Notifications,openning apps, uninstall or disable unwanted programs facebook,messenger, instagram, twitter, maps e.c
11. Settings,Apps&Notifications,advanced, special app access, WI-FI settings, disable all.
12. Settings,Apps&Notifications,disable Emergency alerts, SOS message
13. Go to Settings > System > About phone. Scroll down and find “Build number” and then tap it seven times. This will enable Developer options on your device, and you’ll see a notification that this has happened. Now go back to Settings > System > select Developer options from there. Turn on Developer options. Review everything must be disabled.
14. Developer options, Running services or Process Stats.You can see what processes are working.
15. Developer options, limit background process, set 3 process at most.
16. Developer options, background check, disable all programs. Allows users to remove the hidden "run in background" and "prevent phone from sleeping" permissions from both user and system apps.These permissions are not accessible through the standard permissions manager settings> apps and notifications. Strange it Android 8.1 feature.
17. REBOT NOW.
18. Affter rebot, Developer options set to default (don't know why, program error). All developer settings repeated.
18. After 2 days repeat Wipe cache particion, rebot now. All developer settings repeated.
19. In a few days battery life change.From 17 hours I got 5 days.
Good luck!
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