10-24-2018 12:24 PM
I recommend doing Factory data reset without restoring your apps. After that, do a Battery Calibration. Press and hold the power button for at least 7 seconds until it forces a reboot > Plug into the charger > Charge to 100% > Leave on the charger for at least an additional hour after charging the phone.
After performing all those steps. Please observe the phone the whole day without installing any third-party apps, until we notice any improvement. It's better to set up as new.
Note: If you have important files please make sure to back them up before doing the reset to make sure you won't lose any files.
If the issue persists then we recommend sending the phone for repair.
10-24-2018 12:36 PM
10-24-2018 12:59 PM
I'm having same issue updated to Oreo 8.10 my battery drainage is awful. Please please come out with an update that will fix the issue. My phone is only 5 months old. I feel like smashing it... Before the update this phone was awesome.
Any idea how long it will take to fix this issue?
10-24-2018 01:05 PM
10-24-2018 01:06 PM
Found this thread because I too am having battery issues. Prior to installing the August 1, 2018 security patch I could routinely get at least 1.5 days with my normal usage patterns. Around the time I installed the August 1, 2018 security patch the battery life has declined dramatically. Today I've already had to charge my phone once and I'm already down to 13% again and it's not even 3:00pm yet, and my usage has not been any different than typical.
I've tried rebooting, clearing cache through recovery mode, clearing cached data through the settings/storage/internal shared storage menu, and removing the Outlook app.
It seems that many people can trace this issue back to installation of the August security patch. For that reason, it seems that having to pay for repair on the phone is not an acceptable solution. Are there any other options?
10-24-2018 01:36 PM - edited 10-24-2018 01:37 PM
@oxfat I hope it fixes yours, but it won't last, it's a software bug causing the chip that handles charging to report the incorrect battery life status, and is also causing the CPU to clock to it's max(according to CPUX). I've done every fix suggested on here, and then some, and they only end up as temp fixes.
10-24-2018 01:49 PM
Recommending factory data reset is a fairly standard thing for tech support to do, but I consider it unprofessional. It's extremely disruptive and not so likely to help.
OTOH although I did have these battery issues for a few days after applying the August update, my phone seems OK now. I did NOT do factory data reset. I did reset cache and Play Services, as recommended by others here, because those steps don't hurt much. Neither one seemed to help, at least not right away, but things seem mostly OK now.
10-24-2018 01:50 PM
Are you serious? You guys have issued an update that has caused this massive problem to the G5's and your solution is a factory reset, no use of 3rd party apps for a day, and if that doesn't work to send the phone in for repair? I will NEVER buy another Lenovo phone.