As you might know that Android has recently announced its latest Version of android named Android Oreo and the Version number is 8.0, with some new features and performance improvements, they are claiming that it will decrease the boot time and many more thing you will notice on the initial builds of this ROM.
So today we are going to talk about How to Install or flash Android Oreo 8.0 on Redmi Note 4 running on Snapdragon 625 chip set, I would like to tell you that, this is an unofficial ROM developed by LineageOS, So There would be some bugs(or many) which you can notice easily, the ROM is LineageOS 15.0 Alpha ROM which we will be flashing today on a Redmi Note 4 Device.
What is not working on the Current build of this ROM
Some users are Reporting that VoLTE is not working properly and some are also reporting that fingerprint sensor is not working that great, and Bluetooth also not working, as this is an unofficial and very initial Alpha ROM you can expect many bugs, I will be updating the latest one as soon as I get from XDA developers, so the bugs would get fixed in some time. Always try to flash the latest build find it below.
Pre requirements
See also: Rooting Guide for Redmi Note 4
The bootloader Must Be unlocked and the device must have custom Recovery TWRP installed in addition to flash Android Oreo 8.0 ROM on Redmi Note 4.
Downloads
Download the below mentioned files and put them into the root folder in internal storage of the device
LineageOS 15.0 (Latest- 9th September 2017 Build)
GApps (Google Apps)
Follow this Guide if your Redmi Note 4 is Stuck on Mi Logo or Bootloop
Now I am assuming that your device has an unlocked bootloader and installed custom TWRP recovery on your device so let's move further to flash Android Oreo ROM based on lineage OS 15.0.
boot into recovery mode on your device, using volume up + power button, press and hold these two buttons simultaneously up to 6 seconds and it will boot into TWRP recovery,
Now after booting into TWRP recovery first make sure to take a backup of your current ROM (Nandroid Backup) so that if something goes wrong you could easily flash the backup using TWRP and you will get rid of any issues causing at that time,
after taking the backup I would suggest you to copy that backup from your device to laptop or PC or anywhere instead of your Redmi Note 4,
Don't get panic we will not be deleting the entire storage but in case something goes wrong (as i have told earlier) Then at least you would have a backup to restore, I would suggest to take the backup up of all your internal storage files like images, music, videos etc to your laptop or PC, ( just be on safer side)
Now after taking the backup, Go back to TWRP’s main menu and click on Wipe and swipe right to format the system, it will not wipe your internal storage like images, videos and music it will just delete the system partition and cache data, dalvik etc,
After wiping, Go back and Click on Install and select the LineageOS ROM zip file which you have put on the internal storage of Redmi Note 4 and swipe right to flash, it will take upto 2 minutes to be flashed completely, so be patience,
Now after Flashing completes, just go back once and click on install again to Flash the GApps (GApps are the Google Apps), just select the Gapps zip file and swipe right to flash it, it will also take upto 2 minutes, and after flashing GAPPS, now click on Wipe Cache/Dalvik and swipe to wipe.
Now Go back and Boot your device into System, and it will start booting into LineageOS based on Android 8.0 Oreo, that’s it.
Important Links:
TWRP Unable to Mount Storage issue
TWRP Wrong Pin issue after restoring backup
You have successfully installed Android Oreo 8.0 on Your Redmi Note 4.
As I have told earlier that you could notice many bugs, as this is an initial build but the devs will fix them time by time, and after some time you can get a stable OTA update too. keep visiting AndroWide.com to get the latest builds of LineageOS 15.0
Please comment down below if you are facing any issues or any bugs.
Source: xda-developers
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