JuanRenderos , via OnePlus 8T Lunar Silver , Jan 19, 2021 : Does anyone knows how to downgrade the Oxygenos version from 11.6.8 to 11.5.6? I had a great battery performance with the 11.5.6 version around 8.5 h SOT and with this update has only 7 hours.
StefanStark , via OnePlus 8T Aquamarine Green , Jan 19, 2021 : No downgrade intended as far as I know.
L1605127943798 , via OnePlus 8T , Jan 20, 2021 : I'm also experiencing heavy battery drain after the update.. thought I was the only one
psygarden , via OnePlus 8T Aquamarine Green , Jan 20, 2021 : MSM Tool on xda https://forum.xda-developers.com/t/...l-to-restore-your-device-to-oxygenos.4180837/ Read all instructions before proceeding.
Punit_Patni , via OnePlus 8T , Jan 20, 2021 : For safe downgrade visit service center. I did that and they downgraded my phone os to 11.0.4.5.
JuanRenderos , via OnePlus 8T Lunar Silver , Jan 21, 2021 : What do you mean with service center?? Can I do it through Oneplus website??
Punit_Patni , via OnePlus 8T , Jan 21, 2021 : The service center is very close from my place. I have no idea about oneplus website, do contact the chat support, there is a possibility that they can do it remotely.
G_Mr_.... , via OnePlus 8T , Jan 22, 2021 : Hi, I was experiencing high battery drain also my device is the KB2000 which was on the global software KB05AA I'm in the UK, so I flashed the European version KB05BA & it's running much much better. What part of the world are you in?
G_Mr_.... , via OnePlus 8T , Jan 22, 2021 : Hi not at the moment, you can only update your version from KB05AA to KB05BA or any other build version you might be on to an higher software version, as you're on 11.0.6.8 OnePlus will only let you update to an higher software version like 11.0.6.9 from their software support page, I've tried it myself.
JuanRenderos , via OnePlus 8T Lunar Silver , Jan 22, 2021 : Thank you man! I'm in america and has the KB05AA and actually I don't know how to flash it.
juaancar7 , via OnePlus 8T , Jan 22, 2021 : I'm recently buy a 1+ 8t and I facing this issues, I noticed that my battery drains too fast. I left to sleep at 1:00 am with 93 % and when I got up I've seen that my battery Has come down at 86 %.
G_Mr_.... , via OnePlus 8T , Jan 22, 2021 : Hi buddy, here you go try watching couple video on YouTube, it's very simple once you understand the instructions. https://www.androidauthority.com/how-to-update-oneplus-software-1010681/ said: https://www.oneplus.com/uk/support/softwareupgrade
JuanRenderos , via OnePlus 8T Lunar Silver , Jan 22, 2021 : Thank you, I already tried both methods and does not worked. The installation get stuck at 93% at and doesn't finish at all.
JuanRenderos , via OnePlus 8T Lunar Silver , Jan 22, 2021 : Are you leaving all the applications open in the background?
juaancar7 , via OnePlus 8T , Jan 22, 2021 : Yeah I have left in the background Twitter, Instagram and Telegram only.
G_Mr_.... , via OnePlus 8T , Jan 22, 2021 : That's strange, did you miss something? I done it & it only took about ten minutes for the whole process. Make sure you haven't missed anything out.
JuanRenderos , via OnePlus 8T Lunar Silver , Jan 22, 2021 : No I did all the steps that the process required, first downloaded the file from official page of 1+, second moved to root folder, change de extension .jar and installed due local upgrade and always get stuck at 93%.
G_Mr_.... , via OnePlus 8T , Jan 22, 2021 : I didn't change the extension.jar, all I did was download the update, moved it to the root folder then went to local update.
