Database Users

how to downgrade oxygen 5.0 to oxygen 4.5.15

Hi guys
I updated my OnePlus 5 from this link
https://forum.xda-developers.com/oneplus-5/how-to/official-stable-oxygen-os-5-0-update-t3724247/amp/
how to downgrade oxygen 5.0 to oxygen 4.5.15
I tried many times with many recoveries
Couldn't downgrade please help
Thank you

Please help

Reverting back to the 7.1.1 will require a full install and clean flash (FULL WIPE of all data and cache). Please be aware that all data will be wiped during the revert-back process, so do remember to backup your data in advance.
Stock Recovery:
Download Rollback Build and place it on internal
Reboot to Stock OOS Revovery
Wipe Cache
Select “Install from Local” and choose the downloaded build to install.
Reboot your device after installing the build. You have to re-enter recovery mode to Wipe data cache and Erase everything(Music, pics, etc).
Reboot your device again and you're all good to go.
Custom Recovery | TWRP
Oreo Compatible TWRP
Download Rollback Build and place it on internal
Reboot to compatible TWRP
Wipe Dalvik , System, Data & Cache
Select ROM Zip and Swipe to Flash
Flash SuperSU Beta/Magisk Beta
Wipe Dalvik & Cache
Reboot to OS

hy, you can find all you want here https://forum.xda-developers.com/showpost.php?p=74629867&postcount=3
on: Reverting back to the Official OTA path/7.1.1

Thank you

Can't flash oreo roms

Hi,
I have a problem installing 8.1 oreo roms on my phone. I follow standard procedure: wipe dalvik, cache, system, data -> install rom + gapps -> wipe cache. After my phone restarts, it displays rom logo, but doesn't load (even after 15-20 minutes of waiting). All I can do is load in fastboot and restore my backup. I use twrp 3.2.1-0, unofficial 8.1 pico gapps from 2018/01/30.
So far I tried:
-Installing rom and gapps separately.
-Installing rom, rebooting, installing gapps.
-Installing rom + gapps, then wiping data.
-Installing rom + gapps, then not wiping anything.
-Factory reset, then install rom + gapps.
-Installing rom + different gapps versions.
Additional notes:
-At one point I successfully installed NitrogenOS (about a month ago) and it is my current rom and backup. But I can't clean flash it again.
-When I install rom only (without any gapps) it boots up fine without errors or long loading.
Can anyone help?

Same problem I am also facing. Using Pixel experience ROM but now not able to flash cosmic official rom...remaining on bootanimation

Hi buddy .
TWRP
Wipe Data, Dalvik, Cache , System, Internal Storage
Flash
Rom
Gapps
Wipe to factory reset
Reboot
Done ! That's the only way it worked for me

metro20 said:
Hi buddy .
TWRP
Wipe Data, Dalvik, Cache , System, Internal Storage
Flash
Rom
Gapps
Wipe to factory reset
Reboot
Done ! That's the only way it worked for me
Click to expand...
Click to collapse
Thanks for answer. I tried that method too, but it still didn't work for me. I recently tried clean flash with gapps from https://forum.xda-developers.com/xiaomi-redmi-3s/development/rom-lineageos-15-1-t3718757 and it worked flawlessly. So maybe it's an issue with some gapps packages?

I also have the exact same problem.
Flashing ROM without gapps works perfectly.
adding gapps package, no matter if its pico aroma or mini, it results in stuck on boot animation.
wiping after flashing also did not work.
once made pixel experience boot, using it since...ota update worked without a problem.
any other suggestions?

devito666 said:
I also have the exact same problem.
Flashing ROM without gapps works perfectly.
adding gapps package, no matter if its pico aroma or mini, it results in stuck on boot animation.
wiping after flashing also did not work.
once made pixel experience boot, using it since...ota update worked without a problem.
any other suggestions?
Click to expand...
Click to collapse
Try this nano package https://androidfilehost.com/?fid=889964283620771808. It's the only one that worked for me.

sanchez8096 said:
Try this nano package https://androidfilehost.com/?fid=889964283620771808. It's the only one that worked for me.
Click to expand...
Click to collapse
Thanks for the Link!
But unfortunately still Not booting...tried atomic official and teammexs Rom...

metro20 said:
Hi buddy .
TWRP
Wipe Data, Dalvik, Cache , System, Internal Storage
*then tap back, FORMAT DATA and confirm by typing "yes"
Flash
Rom
Gapps
Magisk stable (if preferred if not next >>>)
Magisk beta (always flash after stable)
Busybox flashable zip (if needed)
Mods such as MIUI cam mod
Font package
Wipe to factory reset
Reboot
After 1st boot
Reboot to TWRP
Install Magisk modules ( USN or Viper4android etc)
Reboot system
Done ! That's the only way it worked for me
Click to expand...
Click to collapse
ftfy. But before this ensure that:-
1. Non corrupted ZIPs. Avoid if possible from using mobile data. A slower yet stable WiFi yields better success rate.
2. Currently this unofficial opengapps' builds works better and are more current.

Suo.Eno said:
ftfy. But before this ensure that:-
1. Non corrupted ZIPs. Avoid if possible from using mobile data. A slower yet stable WiFi yields better success rate.
2. Currently this unofficial opengapps' builds works better and are more current.
Click to expand...
Click to collapse
I didn't need to format data on Oreo nos

As mentioned in other threads on this topic, I just wanted to mention here as well that I am also affected by these Oreo boot loops and haven't found a solution yet. I somehow managed to get PixelExperience to install once, but downgraded now to a Nougat build for other reasons (better battery and GCamMod compatibility).

sanchez8096 said:
Thanks for answer. I tried that method too, but it still didn't work for me. I recently tried clean flash with gapps from https://forum.xda-developers.com/xiaomi-redmi-3s/development/rom-lineageos-15-1-t3718757 and it worked flawlessly. So maybe it's an issue with some gapps packages?
Click to expand...
Click to collapse
Use twrp 3.2.1-0 bcoz some Oreo ROMs aren't flash able by 3.1.1

Sunny Za said:
Use twrp 3.2.1-0 bcoz some Oreo ROMs aren't flash able by 3.1.1
Click to expand...
Click to collapse
I am using 3.2.1-0 twrp. Rom itself flashes fine, it's the gapps that create infinite boot.

Exact Same issue Here...

I have same problem too .. can't boot in to any Oreo ROM with Gapps .. really isn't any solution here?

This might not be a proper solution, but here's what I did:
1) Wipe data, cache, dalvik, system
2) Flash rom + gapps(I used NitrogenOS and pico gapps)
3) Wipe data again and restore data from backup(I restored data from previous build of NitrogenOS, so I don't know if restoring from different rom will be ok)
4) Boot into rom, ignore any "stopped working" errors and go to Settings-System-Reset options-Erase all data(Not sure if this will erase internal storage, backup just in case)
After that phone booted up and and did first time installation.

sanchez8096 said:
This might not be a proper solution, but here's what I did:
1) Wipe data, cache, dalvik, system
2) Flash rom + gapps(I used NitrogenOS and pico gapps)
3) Wipe data again and restore data from backup(I restored data from previous build of NitrogenOS, so I don't know if restoring from different rom will be ok)
4) Boot into rom, ignore any "stopped working" errors and go to Settings-System-Reset options-Erase all data(Not sure if this will erase internal storage, backup just in case)
After that phone booted up and and did first time installation.
Click to expand...
Click to collapse
Can someone upload me some backup? Pixel Experience would be a best ! Thanks a lot

Anyone have an idea what the problem might be?
I'm facing the same problem. I have a Redmi 3S (international, 3GB version). Doesn't matter what Oreo ROM I try (clean install), they all get stuck in bootloop on boot animation. It doesn't get far enough in the boot process to do a logcat with ADB, so I'm not able to post it.
I'm using TWRP 3.2.1-0 but have tried Red Wolf recovery as well and it yields the same results... I don't think it's a gapps issue since I've tried booting several ROMS without installing gapps.
I have rebooted several times while it's still in the boot process, remounted system in TWRP, wiped everything, ...
If anyone has an idea to get the logs, fire away. Can't boot so can't install liveboot or something like that.

bump

any solution?

The Problem still occurs...
Flashed PE successfully once, but since i went Back to official Nougat lineage os, No Oreo Roms can be booted with gapps

Problem installing omnirom android 9 on oneplus 5

i follow the instructions as per omnirom thread... flash the vendor/firmware, wipe data , reboot recovery, and flash the rom, but the omni rom does not boot at all and just shows the OMNI sign on/off. How should i proceed?

Which ROM were you on? What Firmware were you on? Were you Encrypted? Did you only Wipe /Data or did you wipe everything?

Dirk said:
Which ROM were you on? What Firmware were you on? Were you Encrypted? Did you only Wipe /Data or did you wipe everything?
Click to expand...
Click to collapse
Lineageos 15.1 (android 8.1)
I first flashed OOS stock firmware, then OOS, then LOS.
I format data and then wipe dalvik cache, cache, data, system.

datg said:
Lineageos 15.1 (android 8.1)
I first flashed OOS stock firmware, then OOS, then LOS.
I format data and then wipe dalvik cache, cache, data, system.
Click to expand...
Click to collapse
Is your Recovery up to date? I'd recommend the latest Codeworkx TWRP. Did you already have the Vendor partition on your device before attempting to flash Omnirom?
If in doubt flash full OOS 5.1.3 and OTA all the way up to and including 9.0.1. Then reinstall TWRP by fastboot, wipe and format everything and then flash Omni.

Dirk said:
Is your Recovery up to date? I'd recommend the latest Codeworkx TWRP. Did you already have the Vendor partition on your device before attempting to flash Omnirom?
If in doubt flash full OOS 5.1.3 and OTA all the way up to and including 9.0.1. Then reinstall TWRP by fastboot, wipe and format everything and then flash Omni.
Click to expand...
Click to collapse
I still tried, it does not work. My phone got bricked, so I used MSM tool to unbrick and after that I got Nougat 7.1.1. I upgrade my Android to 8.0 (OOS 5.1.3) from system update, and after that update another one came, Android 8.1.1 ( OOS 5.1.7). I then unlock bootloader, flash twrp, flash vendor/firmware, wipe data, flash Omnirom but I get stuck into the omni loading screen. The phone does not load.

datg said:
I still tried, it does not work. My phone got bricked, so I used MSM tool to unbrick and after that I got Nougat 7.1.1. I upgrade my Android to 8.0 (OOS 5.1.3) from system update, and after that update another one came, Android 8.1.1 ( OOS 5.1.7). I then unlock bootloader, flash twrp, flash vendor/firmware, wipe data, flash Omnirom but I get stuck into the omni loading screen. The phone does not load.
Click to expand...
Click to collapse
Okay, i'm not seeing anything about a Format operation there. Wipe does not equal Format. I've just finished setting up Omnirom 9 on my own OP5, so it does work. (Great ROM btw)
Backup everything from Internal Storage to your PC, including all the installation files. The following will wipe your storage!
1) Boot into TWRP
2) Wipe Menu, Advanced, Select all Partitions manually and Wipe
3) Wipe Menu, Format. (Type Yes when prompted)
4) Reboot Menu, Reboot Recovery
5) Copy Installation files from PC to Internal Storage
6) Install Menu, Queue up and install zips in the following order:
i) Vendor/Firmware
ii) ROM
iii) Gapps
7) Wipe Dalvik/Cache when prompted
8) Reboot
9) Set up and done.

Dirk said:
Okay, i'm not seeing anything about a Format operation there. Wipe does not equal Format. I've just finished setting up Omnirom 9 on my own OP5, so it does work. (Great ROM btw)
Backup everything from Internal Storage to your PC, including all the installation files. The following will wipe your storage!
1) Boot into TWRP
2) Wipe Menu, Advanced, Select all Partitions manually and Wipe
3) Wipe Menu, Format. (Type Yes when prompted)
4) Reboot Menu, Reboot Recovery
5) Copy Installation files from PC to Internal Storage
6) Install Menu, Queue up and install zips in the following order:
i) Vendor/Firmware
ii) ROM
iii) Gapps
7) Wipe Dalvik/Cache when prompted
8) Reboot
9) Set up and done.
Click to expand...
Click to collapse
I did it, but I get a bootloop. Omnirom does not boot, it just shows the OMNI logo lights.

datg said:
I did it, but I get a bootloop. Omnirom does not boot, it just shows the OMNI logo lights.
Click to expand...
Click to collapse
The only difference between the two of us that i can see is that i flashed OOS 9.0.1 and booted into it once before doing the steps above.
Don't know if it's relevant but the Vendor/Firmware that i used was 9.0.1 also:
https://drive.google.com/drive/folders/11o0FxZ_rw5lhthGz8_iyYEXBt0dwiv3x
Make sure you nuke everything before starting. Wipe and Format everything. Move installation files across and follow steps.

Dirk said:
The only difference between the two of us that i can see is that i flashed OOS 9.0.1 and booted into it once before doing the steps above.
Don't know if it's relevant but the Vendor/Firmware that i used was 9.0.1 also:
https://drive.google.com/drive/folders/11o0FxZ_rw5lhthGz8_iyYEXBt0dwiv3x
Make sure you nuke everything before starting. Wipe and Format everything. Move installation files across and follow steps.
Click to expand...
Click to collapse
I flashed OOS first and booted everything and I followed the steps and got everything right, but still I get stuck with a bootloop that does not load OmniROM.

Works fine for me;
Flashed the latest OxygenOS. Now you dont need to worry about flashing firmware later in the process.
Enabled unlocking the bootloader in developer menu.
Rebooted into bootloader and flashed the recovery image from clockworkx and booted into twrp recovery.
Wiped everything and formatted data as well.
Reboot recovery.
Flashed rom. I always use sideload but that should not matter. Dont flash anything else; first reboot into your working system.

Redmi note 7 stuck on boot image

I was using PE rom and I flashed a kernel and wiped cache and dalvik, after rebooting i couldn't turn on my mobile data for some reason. I went back to orange fox recovery and wiped system, cache, data, dalvik, vendor. Then i tried rebooting but it says no os installed. I used my other phone to download the latest PE rom and saved it on my sd card so i can flash it on my phone. I wiped cache, data, system, dalvik and vendor again before flashing the PE rom. After i flashed the rom im stuck on the boot image of PE i dont know why. Anyone knows how to fix this?
Is bc i wiped my phone's firmware too and thats the reason why my phone wont boot completely?
My device is redmi note 7. Thank u in advance

Skye1080p said:
I was using PE rom and I flashed a kernel and wiped cache and dalvik, after rebooting i couldn't turn on my mobile data for some reason. I went back to orange fox recovery and wiped system, cache, data, dalvik, vendor. Then i tried rebooting but it says no os installed. I used my other phone to download the latest PE rom and saved it on my sd card so i can flash it on my phone. I wiped cache, data, system, dalvik and vendor again before flashing the PE rom. After i flashed the rom im stuck on the boot image of PE i dont know why. Anyone knows how to fix this?
Is bc i wiped my phone's firmware too and thats the reason why my phone wont boot completely?
My device is redmi note 7. Thank u in advance
Click to expand...
Click to collapse
OMG!
1. You should never wipe system or vendor.
2. You should never wipe the firmware. Why on earth would you want to do that?
3. Format the data partition; reboot the recovery; flash a working firmware image (if you did indeed wipe the firmware); flash PE; hope for the best

DarthJabba9 said:
OMG!
1. You should never wipe system or vendor.
2. You should never wipe the firmware. Why on earth would you want to do that?
3. Format the data partition; reboot the recovery; flash a working firmware image (if you did indeed wipe the firmware); flash PE; hope for the best
Click to expand...
Click to collapse
Thank you for the knowledge! After formatting data and flashing PE it finally worked! I really appreciate it man.

Skye1080p said:
Thank you for the knowledge! After formatting data and flashing PE it finally worked! I really appreciate it man.
Click to expand...
Click to collapse
:good: Hit the "Thanks" button.

Vendor Partition is missing in Wipe menu in TWRP

I flashed TWRP recovery I used last week, to install SparkOS and I do remember following a tutorial that said wipe Dalvik, Cache, Data, System and Vendor, which I did successfully and installed the custom rom. I didn't last much and reverted to Stock Rom.
Cut to yesterday I flashed the same recovery as last time, and when I went to wipe the partitions I didn't find Vendor. Checked Mount menu clicked on Vendor it didn't show up under Wipe.
Should I ignore this and continue with installing my custom rom after wiping (Dalvik, Cache, Data and system only) or this is a problem and I am not able to install any custom rom until I wipe Vendor Partition?

It may cause problem or maybe not. Try Orange Fox recovery or any other recovery which supports to wipe vendor data and then flash your Custom Rom correctly as in tutorial.

ai.Sanaul said:
It may cause problem or maybe not. Try Orange Fox recovery or any other recovery which supports to wipe vendor data and then flash your Custom Rom correctly as in tutorial.
Click to expand...
Click to collapse
I followed it step by step, but I'm gonna try different versions and see if shows up. Otherwise I'll revert back to stock and hang my hat.

ai.Sanaul said:
It may cause problem or maybe not. Try Orange Fox recovery or any other recovery which supports to wipe vendor data and then flash your Custom Rom correctly as in tutorial.
Click to expand...
Click to collapse
Updating the TWRP version from 3.3.1 to 3.6 fixed the problem. Thank you for the help.

Ikarisdruig said:
Updating the TWRP version from 3.3.1 to 3.6 fixed the problem. Thank you for the help.
Click to expand...
Click to collapse
welcome