Moto g 4 plus downgrade to 7.1.1

[Zagre]

Hello,

This afternoon i got the notifiction for the update to andriod 8.1, most of the time newer is better so i installed the update. My phone however has 1 problem, the screen burns in very fast. This could be stoped in andriod 7.1.1 with the blue light filter (or night filter). This option however isnt present anymore in andriod 8.1. To stop the burn in i tried multiple apps to get some sort of blue light filter, none of them worked, or just werent as good as the build in option in andriod 7.1.1. my question is: is there a way and a guide to downgrade my phone back to andriod 7.1.1?

 

[strongst]

Hello,

This afternoon i got the notifiction for the update to andriod 8.1, most of the time newer is better so i installed the update. My phone however has 1 problem, the screen burns in very fast. This could be stoped in andriod 7.1.1 with the blue light filter (or night filter). This option however isnt present anymore in andriod 8.1. To stop the burn in i tried multiple apps to get some sort of blue light filter, none of them worked, or just werent as good as the build in option in andriod 7.1.1. my question is: is there a way and a guide to downgrade my phone back to andriod 7.1.1?

Have you tried https://play.google.com/store/apps/details?id=com.eyefilter.nightmode.bluelightfilter ? Reported to be working fine on 8.1

 

[echo92]

In addition to strongst's suggestion, if you're okay with unlocking your bootloader, you could flash a custom kernel and adjust your RGB colour settings with a kernel manager. Of course, unlocking your bootloader will erase your device in the process.

I would recommend against downgrading to stock 7.0 unless you are certain you will not use OTA updates - using OTA updates whilst downgrading is an excellent way to hard brick your device and turn it into an expensive paperweight.

 

[Zagre]

Have you tried https://play.google.com/store/apps/details?id=com.eyefilter.nightmode.bluelightfilter ? Reported to be working fine on 8.1

yes i tried that, it does work but just nog as good as the build in blue light filter in 7.1 (for example the top row of icons arent affected)

In addition to strongst's suggestion, if you're okay with unlocking your bootloader, you could flash a custom kernel and adjust your RGB colour settings with a kernel manager. Of course, unlocking your bootloader will erase your device in the process.

I would recommend against downgrading to stock 7.0 unless you are certain you will not use OTA updates - using OTA updates whilst downgrading is an excellent way to hard brick your device and turn it into an expensive paperweight.

If i would install lineage os 14.1 wich is based on android 7.1.2. would that still brick my phone?
can i go back with lineage os based on a older version of andriod or do i need to use a version of lineage os that is at least on par with my current android version (8.1)?

https://forum.xda-developers.com/moto-g4-plus/development/rom-cyanogenmod-14-1-t3522101

 

[strongst]

yes i tried that, it does work but just nog as good as the build in blue light filter in 7.1 (for example the top row of icons arent affected)




If i would install lineage os 14.1 wich is based on android 7.1.2. would that still brick my phone?
can i go back with lineage os based on a older version of andriod or do i need to use a version of lineage os that is at least on par with my current android version (8.1)?

https://forum.xda-developers.com/moto-g4-plus/development/rom-cyanogenmod-14-1-t3522101

Custom roms won't change your bootloader, so there's no risk to brick your device

 

[Zagre]

Custom roms won't change your bootloader, so there's no risk to brick your device

Thanks for the help, i hope installing lineage will fix my problem

 

[Zagre]

Custom roms won't change your bootloader, so there's no risk to brick your device

i am looking at the lineage os tutorial: https://wiki.lineageos.org/devices/athene/install. they unlock the bootloader here, but changeing my bootloader could brick my phone, or is unlocking and changeing the bootloader not the same?

 

[strongst]

i am looking at the lineage os tutorial: https://wiki.lineageos.org/devices/athene/install. they unlock the bootloader here, but changeing my bootloader could brick my phone, or is unlocking and changeing the bootloader not the same?

It's not the same

 

[lucascerqueira]

In addition to strongst's suggestion, if you're okay with unlocking your bootloader, you could flash a custom kernel and adjust your RGB colour settings with a kernel manager. Of course, unlocking your bootloader will erase your device in the process.

I would recommend against downgrading to stock 7.0 unless you are certain you will not use OTA updates - using OTA updates whilst downgrading is an excellent way to hard brick your device and turn it into an expensive paperweight.

to downgrade to nougat do i have to run all normal commands or have to skip any of then?

 

[echo92]

to downgrade to nougat do i have to run all normal commands or have to skip any of then?

I will preface this with I do not recommend downgrading to Nougat. If you do, do not use OTA updates. Using OTA updates may hard brick your device and we cannot help you then.

If you still really want to downgrade, you will need an unlocked bootloader. That will erase your device, so back up accordingly.

Then, for flashing stock Nougat (if you're previously on stock Oreo - custom ROMs do not count, only stock firmware), you can omit the fastboot OEM lock begin commands. You will not be able to lock your bootloader whilst downgrading. All other fastboot commands as usual (including the erase commands). You may wish to omit GPT and bootloader since you cannot downgrade GPT and bootloader.

The command list would be similar to this:

[I]fastboot flash partition gpt.bin
fastboot flash bootloader bootloader.img[/I]
fastboot flash logo logo.bin
fastboot flash boot boot.img
fastboot flash recovery recovery.img
fastboot flash dsp adspso.bin
fastboot flash oem oem.img
fastboot flash system system.img_sparsechunk.0
fastboot flash system system.img_sparsechunk.1
fastboot flash system system.img_sparsechunk.2
fastboot flash system system.img_sparsechunk.3
fastboot flash system system.img_sparsechunk.4
fastboot flash system system.img_sparsechunk.5
fastboot flash system system.img_sparsechunk.6
fastboot flash system system.img_sparsechunk.7
fastboot flash modem NON-HLOS.bin
fastboot erase modemst1
fastboot erase modemst2
fastboot flash fsg fsg.mbn
fastboot erase cache
fastboot erase userdata
fastboot reboot

Commands in italics are optional (fastboot will block you and complain of security downgrade errors).