Hi everyone! I have a question! Does anyone know how to install a custom rom on the oneplus 9 t mobile with OOS 12? Do I have to downgrade or can I install a rom that has android 12 by default?
My version its LE2117_11_C.19
You should firstly update to the latest OOS12 update TMo gives us. After that unlock bootloader (as per the guide here on the fourms) via unlock code method (you will have to wait for TMo to send that your way as it's device specific) and then follow the instructions from the rom provider.
I'm running StagOS on my TMo OnePlus 9 without issues since their last release, before that ran Lineage, Jaguar, Nameless. As long as you are updated to latest OOS and with an unlocked bootloader, you can flash any rom on here provided you follow their instructions. If you brick your phone you can use the modified MSM tool I posted on one of my threads to un-brick and bring back to life your phone (keep a backup of your data though)
RandomLatinDude said:
You should firstly update to the latest OOS12 update TMo gives us. After that unlock bootloader (as per the guide here on the fourms) via unlock code method (you will have to wait for TMo to send that your way as it's device specific) and then follow the instructions from the rom provider.
I'm running StagOS on my TMo OnePlus 9 without issues since their last release, before that ran Lineage, Jaguar, Nameless. As long as you are updated to latest OOS and with an unlocked bootloader, you can flash any rom on here provided you follow their instructions. If you brick your phone you can use the modified MSM tool I posted on one of my threads to un-brick and bring back to life your phone (keep a backup of your data though)
Click to expand...
Click to collapse
so can i follow any tutorial to install any rom if i have unlocked bootloader next to sim? since I tried once to change to global and it worked, I put a module and my cell phone and the phone bricked, with the MSM Tool I was able to recover the OOS t mobile version, but I thought I had to downgrades OOS 11 to install any rom and I never did anything again because of fear for the brick
sorry for my bad English
Yasser.d said:
so can i follow any tutorial to install any rom if i have unlocked bootloader next to sim? since I tried once to change to global and it worked, I put a module and my cell phone and the phone bricked, with the MSM Tool I was able to recover the OOS t mobile version, but I thought I had to downgrades OOS 11 to install any rom and I never did anything again because of fear for the brick
sorry for my bad English
Click to expand...
Click to collapse
Yes, that's it. Basically have your phone updated to the latest OxygenOS TMobile can give you,; Have your phone SIM Unlocked AND Bootloader Unlocked and then follow all the steps the Developers of the ROM you choose give for the installation.
If any rom specifically asks for OxygenOS 11, then the same steps are applied except instead of latest OS versión, the one the Dev asks for
Then I will start the installation of some rom that I like on top of the latest update of tmobile OOS 12, do you recommend any specific one that is pixel experience or similar performance?
RandomLatinDude said:
Yes, that's it. Basically have your phone updated to the latest OxygenOS TMobile can give you,; Have your phone SIM Unlocked AND Bootloader Unlocked and then follow all the steps the Developers of the ROM you choose give for the installation.
If any rom specifically asks for OxygenOS 11, then the same steps are applied except instead of latest OS versión, the one the Dev asks for
Click to expand...
Click to collapse
For example, when I go to the official lineageOS 19.1 page, it says that the compatible devices are all except mine LE2117, do I continue to install anyway?
Related
Hey I was experiencing some display issues so I flashed a custom ROM to test / narrow the problem (hardware issue sadly).
—Now I'm not sure how to revert back to completely stock as I've never unlocked the bootloader and worked much with fastboot.
On Samsung's you just download the official stock file, get Odin and put the file into AP, flash, done.
On one plus this is a bit different, first of all there's barely any mentioning of GM-1910 in the MSMDownloaderTool thread(s), I also don't want to have Hydrogen OS.
—My OP7Pro came with Oxygen OS pre-installed, GM1910 "international version" ← def. Chinese with oxygen flashed over it.
*What have you altered so far?*
Unlocked Bootloader/OEM
Flashed TWRP with fastboot
Flashed Havoc 3.0 OS, Magisk, OpenGapps
My perspective on the nature of special relativity.
*What do I want to reset?*
EVERYTHING, ROM, recovery, bootloader, you name it, I don't care about apps and pictures. worth noting I have a One plus Switch Backup, does that help?
Look for the MSM tool... that can reset the phone completely back to stock.
UpdateYourBrowser said:
Hey I was experiencing some display issues so I flashed a custom ROM to test / narrow the problem (hardware issue sadly).
—Now I'm not sure how to revert back to completely stock as I've never unlocked the bootloader and worked much with fastboot.
On Samsung's you just download the official stock file, get Odin and put the file into AP, flash, done.
On one plus this is a bit different, first of all there's barely any mentioning of GM-1910 in the MSMDownloaderTool thread(s), I also don't want to have Hydrogen OS.
—My OP7Pro came with Oxygen OS pre-installed, GM1910 "international version" ← def. Chinese with oxygen flashed over it.
*What have you altered so far?*
Unlocked Bootloader/OEM
Flashed TWRP with fastboot
Flashed Havoc 3.0 OS, Magisk, OpenGapps
My perspective on the nature of special relativity.
*What do I want to reset?*
EVERYTHING, ROM, recovery, bootloader, you name it, I don't care about apps and pictures. worth noting I have a One plus Switch Backup, does that help?
Click to expand...
Click to collapse
You can use the fastboot ROM or Guac (MSM tool for oxygen OS). Links below:
https://forum.xda-developers.com/oneplus-7-pro/how-to/msm-tool-guac-t3934691
or
https://forum.xda-developers.com/oneplus-7-pro/how-to/rom-stock-fastboot-roms-oneplus-7-pro-t3931424
Good luck!!
Gr8man001 said:
You can use the fastboot ROM or Guac (MSM tool for oxygen OS). Links below:
https://forum.xda-developers.com/oneplus-7-pro/how-to/msm-tool-guac-t3934691
or
https://forum.xda-developers.com/oneplus-7-pro/how-to/rom-stock-fastboot-roms-oneplus-7-pro-t3931424
Good luck!!
Click to expand...
Click to collapse
excuse my stupidity but given that I want to get rid of my custom ROM and back to stock oxygen which tool do I have to use?
secondly all images (androidfilehost) for the second link are for GM1911,17,13,15 but mine is 1910 which is not listed, what do I do now?
UpdateYourBrowser said:
excuse my stupidity but given that I want to get rid of my custom ROM and back to stock oxygen which tool do I have to use?
secondly all images (androidfilehost) for the second link are for GM1911,17,13,15 but mine is 1910 which is not listed, what do I do now?
Click to expand...
Click to collapse
I am sorry but I am not familiar with Chinese stock ROMs. For some reason, I got the impression that you wanted to restore it to an international version and not the Chinese/HK version. You may want to post a question in the OnePlus community forum or check out their download section for your specific model.
https://forums.oneplus.com/forums/oneplus-7pro-support/
Gr8man001 said:
I am sorry but I am not familiar with Chinese stock ROMs. For some reason, I got the impression that you wanted to restore it to an international version and not the Chinese/HK version. You may want to post a question in the OnePlus community forum or check out their download section for your specific model.
https://forums.oneplus.com/forums/oneplus-7pro-support/
Click to expand...
Click to collapse
no no I want to restore it to international version, the phone itself is GM1910. should I flash GM21AA file or the global file?
I think I will go with the global file, makes most sense in this moment
UpdateYourBrowser said:
no no I want to restore it to international version, the phone itself is GM1910. should I flash GM21AA file or the global file?
I think I will go with the global file, makes most sense in this moment
Click to expand...
Click to collapse
GM21AA should be fine. If you decided to use the MSM tool (the one in the first link), hardest part is to get the L2/qualcomm drivers installed on your PC with the method described. Alternatively you can download and install the drivers yourself which will make the job easier. This will LOCK your bootloader and wipe off everything on your phone. You will get a brand new phone running 10.0.3 OS
Easiet way would be to go fastboot ROM route. It will also wipe your phone but won't lock the bootloader. Once installation is complete you could use the adb command to lock the bootloader. It's one extra step but may be much easier IMO. Download the zip file on PC>unzip it>Hit flash all bat file while the phone is connected in the fastboot mode. You may get some error messages regarding header parsing, ignore them and sit tight until your phone boots.
Good luck!!
WORKS NOW! Can confirm this reverts all back to stock (it will revert back to Oxygen OS (OOS) 9.5 so you'll have to update to Android 10 via OTA if you want)
For anyone wondering, I had Android 10 installed before / Havoc 3.0 and the MSMTool will revert you back to Oxygen OS 9.5. Widevine jumped back to L1 so everything should be stock.
If you have any questions, don't wait, I am sure someone out there had the same questions/issue as me and I hope this will help you.
https://forum.xda-developers.com/oneplus-7-pro/how-to/msm-tool-guac-t3934691
UpdateYourBrowser said:
WORKS NOW! Can confirm this reverts all back to stock (it will revert back to Oxygen OS (OOS) 9.5 so you'll have to update to Android 10 via OTA if you want)
For anyone wondering, I had Android 10 installed before / Havoc 3.0 and the MSMTool will revert you back to Oxygen OS 9.5. Widevine jumped back to L1 so everything should be stock.
If you have any questions, don't wait, I am sure someone out there had the same questions/issue as me and I hope this will help you.
https://forum.xda-developers.com/oneplus-7-pro/how-to/msm-tool-guac-t3934691
Click to expand...
Click to collapse
Hey, I have a problem, I re-locked the bootloader, it is currently blocked, but my Widevine status is still L3, can you tell me if you used MsmTool first and then you did relock, or did you block the bootloader first?
Hello there,
I tried the open beta on the OnePlus 7pro for a while, but I have some massive issues with speaker distortion, so I decided to go back to stock. I know this involves a wipe of the entire system, and I have fully prepared that.
However: I seem to be to stupid to perform this. I used to flash all kinds of roms to my OP3 back in the day, but I can't find an option for simply flashing the zip in the recovery.
My big big question is: How do I perform the full reflash of this phone?
Do I get an factory rom like with the pixel, or do I need to sideload something and flash it in recovery?
I am really clueless rightnow, expecially since the factory image told me, that the bootloader is locked, but to my unterstandig, flashing an original manufacturer image should not require the bootloader to be unlocked...
So I am really hoping on your help, as rightnow, I have a beta phone that is waiting to be setup...
:crying:
Follow this tutorial.
https://forum.xda-developers.com/oneplus-7-pro/how-to/msm-tool-guac-t3934691
Or easier way would be to download rollback package from oneplus which will wipe everything on your phone. You will have os9.5.3
You can then do Ota upgrade to latest os version. Rollback package is listed in in the middle of the post
https://forums.oneplus.com/threads/...-for-the-oneplus-7-and-oneplus-7-pro.1099154/
So my OnePlus 7 Pro is rooted, has twrp, xxx ROM and renovate ice. If I want to go back stock and relock bootloader, can I simply flash the latest ROM (in this way I should loose twrp and root) and then relock bootloader with ADB command?
Jack_Sparrow_ said:
So my OnePlus 7 Pro is rooted, has twrp, xxx ROM and renovate ice. If I want to go back stock and relock bootloader, can I simply flash the latest ROM (in this way I should loose twrp and root) and then relock bootloader with ADB command?
Click to expand...
Click to collapse
I'd just use the MSMtool detailed here: https://forum.xda-developers.com/oneplus-7-pro/how-to/op7pro-collection-unbrick-tools-t3956595
jdgesmlls said:
I'd just use the MSMtool detailed here: https://forum.xda-developers.com/oneplus-7-pro/how-to/op7pro-collection-unbrick-tools-t3956595
Click to expand...
Click to collapse
That's what I did eventually, faster and easier
jdgesmlls said:
I'd just use the MSMtool detailed here: https://forum.xda-developers.com/oneplus-7-pro/how-to/op7pro-collection-unbrick-tools-t3956595
Click to expand...
Click to collapse
Bro.. I'm on 10.3.4 i just want to go complete stock. The msm tool version seems older? Or can I use the older one or use that roll back rom to go to 9.5.3 and ota update to latest version?
RANJITH THRISSUR said:
Bro.. I'm on 10.3.4 i just want to go complete stock. The msm tool version seems older? Or can I use the older one or use that roll back rom to go to 9.5.3 and ota update to latest version?
Click to expand...
Click to collapse
There is a newer one available search for unbrick tools in forums and also you can use this old one too you have to do local upgrade after that
muhammadshais said:
There is a newer one available search for unbrick tools in forums and also you can use this old one too you have to do local upgrade after that
Click to expand...
Click to collapse
Thanks bro!!
Local upgrade is a cake walk! All my worry was, if I go for a random version msm tool, which is not specific to 10.3.4(more like the case of fast boot Roms), i may stuck at bootloop/something undesirable.
From your reply, i understand, i can use any msm tool zip that supports one plus 7 pro, and get back to stock with an older oos version in it. From there i can choose OTA upgrade or local upgrade.. Whichever way? Right ?
RANJITH THRISSUR said:
Thanks bro!!
Local upgrade is a cake walk! All my worry was, if I go for a random version msm tool, which is not specific to 10.3.4(more like the case of fast boot Roms), i may stuck at bootloop/something undesirable.
From your reply, i understand, i can use any msm tool zip that supports one plus 7 pro, and get back to stock with an older oos version in it. From there i can choose OTA upgrade or local upgrade.. Whichever way? Right ?
Click to expand...
Click to collapse
Yes I used 9.3.4 and then did local update but if you are on 9.3.4 you have to flash first 10.0.3 and then after that 10.3.4 to upgrade.
Hello all,
My phone came with ColorOS OOS 12 and I hate it. As soon as I rooted it it started crashing daily, I even reflashed a fresh oos12 image using the local update tool and only granted superuser to one app (solid explorer so I could access user files) and it still crashes. Not to mention all the apps i want to use don't work on android 12 (call recorder, busy box) and no custom recovery.
I've been reading through the forum and I found a downgrade package that looks like its hosted by oneplus: https://oxygenos.oneplus.net/OnePlu...all_2107082125_downgrade_059624cc7298428b.zip
I just wanted to make sure I am doing this correctly...
Do I use the OP Local Update app to flash?
Will I be able to flash TWRP for android 11 afterwards?
Will i need to relock the bootloader?
Should i re-root using the magisk slot b method or wait until its flashed and use TWRP?
Will it try to OTA back to android 12? If so, what's the best method to get on the latest version of android 11?
Thanks for the help.
I am running COS C.62 on my OP9 with root and having no issues. Did you make sure to do all the things in this guide?
Root OnePlus ColorOS 12 OxygenOS Android 12 via Magisk
In this tutorial, we will show you detailed steps to root your OnePlus device running ColorOS 12 Android 12 via Magisk Patched Boot.img file.
www.droidwin.com
Anyway, yes, use the local upgrade APK, put the downgrade file in the root of storage, run it. Reboot. Factory reset and wipe data to clear out any leftover crap (don't restore a backup - if you want to use Clone Phone you can do that but only restore app APKs and messages). When it reboots it should offer the latest OOS11 OTA first. If not, just download it and place it in the root and use the local upgrade function in the settings menu of the OOS11 system updater.
There is no need re-lock the bootloader and if you do, you risk a brick that has to be recovered with MSM Tool.
Root by following the guide I linked. I just went through this yesterday after flashing COS broke mobile data. I have Magisk 24.3 working with denylist, Widevine L1, and SafetyNet passes so I have Google Pay.
EtherealRemnant said:
I am running COS C.62 on my OP9 with root and having no issues. Did you make sure to do all the things in this guide?
Root OnePlus ColorOS 12 OxygenOS Android 12 via Magisk
In this tutorial, we will show you detailed steps to root your OnePlus device running ColorOS 12 Android 12 via Magisk Patched Boot.img file.
www.droidwin.com
Anyway, yes, use the local upgrade APK, put the downgrade file in the root of storage, run it. Reboot. Factory reset and wipe data to clear out any leftover crap (don't restore a backup - if you want to use Clone Phone you can do that but only restore app APKs and messages). When it reboots it should offer the latest OOS11 OTA first. If not, just download it and place it in the root and use the local upgrade function in the settings menu of the OOS11 system updater.
There is no need re-lock the bootloader and if you do, you risk a brick that has to be recovered with MSM Tool.
Root by following the guide I linked. I just went through this yesterday after flashing COS broke mobile data. I have Magisk 24.3 working with denylist, Widevine L1, and SafetyNet passes so I have Google Pay.
Click to expand...
Click to collapse
Thank you, ill give it a try.
First i used the payload.bin method and it was crashing, then i reflashed the latest OTA using the local update tool and used the magisk slot b method. still crashing.
It might have less to do with the root and more with me using root to disable certain apps (youtube, chrome, OP community, google news/podcast/tv) i dont want them on my phone but they might be too tightly integrated. If its still crashing on android 11 ill re-enable them and see if that helps.
aaronbaird1 said:
Thank you, ill give it a try.
First i used the payload.bin method and it was crashing, then i reflashed the latest OTA using the local update tool and used the magisk slot b method. still crashing.
It might have less to do with the root and more with me using root to disable certain apps (youtube, chrome, OP community, google news/podcast/tv) i dont want them on my phone but they might be too tightly integrated. If its still crashing on android 11 ill re-enable them and see if that helps.
Click to expand...
Click to collapse
Okay you're on OOS, not COS. COS doesn't have Google apps by default (but has plenty more bloatware, I just don't use it).
It's certainly possible that disabling Google apps is your problem. If you don't want Google apps, you're better off with a custom ROM that doesn't have them. CalyxOS has a beta for OnePlus 9 and it's totally de-Googled. There's also Lineage.
EtherealRemnant said:
Okay you're on OOS, not COS. COS doesn't have Google apps by default (but has plenty more bloatware, I just don't use it).
It's certainly possible that disabling Google apps is your problem. If you don't want Google apps, you're better off with a custom ROM that doesn't have them. CalyxOS has a beta for OnePlus 9 and it's totally de-Googled. There's also Lineage.
Click to expand...
Click to collapse
ahhhh. i didnt realize there was a difference. I thought OP was just calling their android 12 build ColorOS.
Either way, for custom roms i would have to go back to 11 to flash TWRP right? or can you flash custom roms using fastboot?
aaronbaird1 said:
ahhhh. i didnt realize there was a difference. I thought OP was just calling their android 12 build ColorOS.
Either way, for custom roms i would have to go back to 11 to flash TWRP right? or can you flash custom roms using fastboot?
Click to expand...
Click to collapse
You would need to back to 11 because OnePlus hasn't released working sources for 12. Just use the downgrade package, factory reset, then upgrade to 11.2.10.10 and you'll be good to go for custom ROMs. TWRP isn't used for flashing them, they all generally post their own recovery. StagOS was the best one I used (plus the dev is really responsive when there are issues) and people seem to really be enjoying Nameless but that came out after I went back to stock so I haven't tried it yet.
Before you mess with custom ROMs, make sure that you download the global MSM Tool and make sure you can connect it. Honestly since you have to go back anyway, might as well download and use the MSM Tool to get the device back to 11 anyway.
GLOBAL OnePlus 9 MSM TOOL UPDATED
Frist off Im not responsible for anything that happens to your phone!!! VERY SIMPLE IF YOU ARE BICKED,BOOTLOOPED OR JUST WANT TO GO BACK TO 100% STOCK THIS WILL WIPE ALL DATA!!! AN RELOCK BOOTLOADER OOS 11.2.4.4.LE25AA MUST HAVE QAULCOMM...
forum.xda-developers.com
Easiest way to get it into EDL is adb reboot edl but if you want to practice the key combination in case you can't get into the OS, I found if you open the MSM, check use lite firehose, and click Start before you connect the phone, it has less connection errors because it's waiting for the phone so as soon as you connect the cable, it pops up.
EtherealRemnant said:
TWRP isn't used for flashing them, they all generally post their own recovery.
Click to expand...
Click to collapse
Really??? you can tell I haven't messed with custom roms in a long time.
Thank you for all the help. I'll try it out.
aaronbaird1 said:
Really??? you can tell I haven't messed with custom roms in a long time.
Thank you for all the help. I'll try it out.
Click to expand...
Click to collapse
Yeah TWRP has issues. I soft bricked last time I tried to do anything with it and had to use MSM Tool to get back to working order.
Good evening,
Is it possible to recover from where I am (LE2117 model on OxygenOS 11.2.10.10.LE25AA, OTA Version OnePlus9Oxygen_22.O.13_GLO_0130_2111112106), or is my only option to be stuck on the OnePlus 9 Pro 5G India version for locked bootloader? If it's possible, what do I need to do? Work demands my phone to not be rooted...I'm not married to the concept of global or India region, and am fine with either.
[Marking each area with a reference at the bottom...]
Problem: I've attempted the OnePlus 9 5G T-Mobile to Global transition [REF001] on my LE2117 only to brick my phone midway through the process. The goal here is to get the phone on a NON-T-Mobile variant with a locked bootloader. Thankfully I'm rid of T-Mobile, at least...
Where I am now: I was able to recover the phone by using the MSM tool for OnePlus 9 Pro 5G India [REF002], then using the T-Mobile to Global "flash_all.bat" script [REF001] again with the payload of the global version [REF003]. The issue is that the phone's bootloader isn't locked, and if I lock it then everything is gone and I must start over at the beginning of this paragraph. I've attempted using the global MSM tool [REF004], but the issue is that it provides a Param Preload error for Unsupported Target IN. There was a reference somewhere about flashing the param.bin, though, that didn't seem to work...
Thank you for your insight and assistance!
REF001: Convert T-Mobile OnePlus 9 to Global (or other) firmware - https://forum.xda-developers.com/t/convert-t-mobile-oneplus-9-to-global-or-other-firmware.4277169/
REF002: OnePlus 9 Pro Oxygen OS India MsmDownloadTool - https://forum.xda-developers.com/t/oneplus-9-pro-oxygen-os-india-msmdownloadtool.4270589/
REF003: OnePlus9Oxygen_22.O.13_OTA_0130_all_2111112106 -
https://oxygenos.oneplus.net/OnePlus9Oxygen_22.O.13_OTA_0130_all_2111112106_03a66541157c4af5.zip
REF004: GLOBAL OnePlus 9 MSM TOOL UPDATED -
GLOBAL OnePlus 9 MSM TOOL UPDATED
Frist off Im not responsible for anything that happens to your phone!!! VERY SIMPLE IF YOU ARE BICKED,BOOTLOOPED OR JUST WANT TO GO BACK TO 100% STOCK THIS WILL WIPE ALL DATA!!! AN RELOCK BOOTLOADER OOS 11.2.4.4.LE25AA MUST HAVE QAULCOMM...
forum.xda-developers.com
Run the Indian 9 Pro MSM again and download the global 9 downgrade package in the pinned post and flash that to get back on global firmware. The MSM re-locks the bootloader as part of the process and you don't need an unlocked bootloader to convert between variants if you use the official local upgrade function.
Thank you for your response EtherealRemnant -
I've followed the steps and am probably doing something wrong. I've run the OP9PRO India MSM, unlocked OEM for the flash (because trying local upgrade (downgrade) at this point doesn't show the packages), flashed to either global downgrade package, and attempted the global MSM tool for re-lock. I'm still getting the Unsupported Target IN or Device Not Match Image error. Which part of this am I doing incorrectly?
TuufLess said:
Thank you for your response EtherealRemnant -
I've followed the steps and am probably doing something wrong. I've run the OP9PRO India MSM, unlocked OEM for the flash (because trying local upgrade (downgrade) at this point doesn't show the packages), flashed to either global downgrade package, and attempted the global MSM tool for re-lock. I'm still getting the Unsupported Target IN or Device Not Match Image error. Which part of this am I doing incorrectly?
Click to expand...
Click to collapse
You may actually be running into the same problem I did with the downgrade package where it just vanishes from the storage. Do it like this on your computer:
adb push packagename.zip /sdcard/
When I did this, it didn't mysteriously vanish anymore.
If this doesn't work, you may unfortunately be stuck unless you can get someone to modify an MSM Tool for your purposes.
Finally, a solution that hopefully others can also follow to install different versions of their official builds as well (just exchange REF004 with your appropriate compressed zip containing the payload.bin.):
[Adding references for those who found themselves in my same predicament...]
After utilizing the MSM Download Tool for OnePlus 9 Pro 5G [India Region] [REF001], I unlocked the bootloader and leveraged the TWRP App for OnePlus 9 [REF002] by booting towards it [REF003] and installing/flashing the latest version of the OnePlus 9 5G [Global] [REF004] (it defaulted to slot B.) Re-locking the bootloader [REF005] allowed the phone to automatically wipe, and boot directly into the latest Global install.
Shout-out to ctonylee1965's post that's nearly buried in an off-related thread, or I wouldn't have found this solution.
[Original Discussion: https://forum.xda-developers.com/t/...a-sahara-connection-error-check-this.4308601/]
ctonylee1965 said:
Got back to global. Took me a day to figure it out. Enable OEM Unlock and USB debugging. I flashed temp TWRP, installed the OS Zip file from OnePlus support site. Rebooted into recovery, formatted and wiped system. Booted into global. This installation is in SLOT B. Slot A will still have horrible Indian Rom (only horrible because it shouldn't be installed on my Global Unlocked Phone, no disrespect to my Indian brothers.) Note when logging in for the first time let global do its OTA update before you do anything else, especially before you reboot. The Indian version is installed in slot A. REBOOT after OTA installed. Don't reboot before OTA does its thing. This will ensure Slot A has a clean installation. I made the mistake of rebooting before the OTA and I could not do anything with slot A. Relock the bootloader, it will wipe and you will boot into a pristine Global OS 11.2.8.8 Rom.
Click to expand...
Click to collapse
Thank you EmerealRemnant for your assistance as well!
REF001 - MSM Download Tool for OnePlus 9 Pro 5G [India Region] - https://forum.xda-developers.com/t/oneplus-9-pro-oxygen-os-india-msmdownloadtool.4270589/
REF002 - TWRP for OnePlus 9 (lemonade) - https://dl.twrp.me/lemonadep/
REF003 - TWRP Commands To Use (Scroll Down) - https://twrp.me/oneplus/oneplus9.html
REF004 - OnePlus 9 5G (Global) Official Build - https://www.oneplus.com/global/support/softwareupgrade/details?code=PM1617074715494
REF005 - Re-locking the bootloader (fastboot oem lock) - https://ihax.io/relock-bootloader-a...ommand to reboot your device: fastboot reboot
It seems strange you had to do all that work when all I had to do was flash the downgrade package...
Hello,
Just got a Oneplus 9 today. Installed Jaguar to try it out. Wanted to go back to stock to compare a few things.
I grabbed the "stock" files and tried to flash using this guide: https://forum.xda-developers.com/t/fastboot-rom-pc-required-op9-stock-oos-11-2-2-2aa.4275727/
This bricked the phone.
I was able to restore the phone via MSM using the Indian one (lemonadep_22_I.07_210412), but in OxygenOS it states the Phone is a 9 Pro.
I tried flashing the STOCK file again just to see (since I now know I can recover in EDL), but it bricked the phone again.
This allowed me to confirm that for Global LE2115, the European MSM (lemonadep_22_E.05_210324) also works to restore the device!
Unfortunately again, it says the Phone is a 9 Pro.
How would I proceed if I wanted to return a LE2115 to stock and relock the bootloader?
Thanks
Found my answer in this post: https://forum.xda-developers.com/t/fixed-hard-bricked-le2115.4452435/#post-86967531
Copy pasta:
To get back to global firmware, flash this in the local upgrade tool.
https://oxygenos.oneplus.net/OnePlu...all_2107082125_downgrade_059624cc7298428b.zip
It is the global downgrade package. It will wipe your phone and when it comes back, you will be back on global software.
After you flash that, go to OTA upgrade and it will say it's going to download C.48 but it will actually install 11.2.10.10 and then you will have the latest OOS11.
Click to expand...
Click to collapse
Can confirm this works!
I used the unnbrick tool from one community server and restored my one plus 9 5g 2115.to stock and locked the bootoader. But I could not get to install any rom because it always took me to crash dump. Hope it helps to get back to proper version for you