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Lenovo s5 (k520) ZUI 3.7.177 ST Got root anyone?

Just got a new Lenovo s5 (k520 running ZUI 3.7.177 ST) but can't root it (tried KingRoot and Root Genius so far).
It has a nasty little OS (ZUI 3.7) which keeps killing apps it doesn't like. It took me two days to find an adblocker which would work (AdClear) after trying Dns66, Blokada and a couple of others which I can't recall. It's tightly locked down.
* Anyway, my question is... Has anyone had any luck with rooting this phone or OS?
* Or, has anyone any suggestions for apps or rooting options which might be more successful?
If there's any other people out there with this phone, I would seriously consider chipping in to buy one for a dev to work with... give me a yell if you're interested.
Cheers,
Specs:
OS ZUI 3.7 (based on Android O)
CPU Qualcomm Snapdragon 625 2.0GHz Octa core
ROM 64GB
RAM 4GB
Edit: Hmmm, I was hoping that the latest Magisk beta (16.6) might help, but no luck. It does seem to get further along but fails with an 'unable to find boot image' message (my apologies for not being able to quote that accurately). Nothing seems able to find that .img. Can't back it up either as no app can find it. Yes, I need to brush up my adb skills ...my last effort ended in an error reporting lack of appropriate key, as I recall (sorry, have a bit of a flu just now). Anyway, has anyone else been able to look at this phone? Anyone have any ideas (or just thoughts) about what I can do here?
Thanks.

Just to update.... I have tried every simple rooting option I can find -with no luck.
I have found one reference to installing twrp & rooting this phone, but I'm unsure how legit it is ...it just looks a little like its put together by a script; but maybe they just copy/paste a lot when writing tutes? (I have written to them but have had no response from them in a week). The tutorial makes reference to a dev/group in China successfully installing twrp, but only on a Chinese release, not international.
Anyway, I'm wondering if anyone knows of the group or people referenced at
http://tutoraplikasi.com/cara-root-lenovo-s5/
or if anyone might have an idea of the dev(s) in China working on twrp & lenovo?
Just a shot in the dark, really, but I thought I'd ask anyway.
Cheers.

OK, looks like time for some more serious reading and brushing up of old, much neglected skilz... I will probably close this thread and open another ( if there's no objections) in the xda twrp forum.
If anyone is interested, I'm looking to compile twrp for this device with a view to flashing magisk. Hopefully, it will work. Seems that adb & unlocking the bootloader is the only way I'm going to get to actually see the partitions holding the IMG files etc. (Though I do have one or two ideas about escalating privileges/permissions, but that's a whole other bunch of research -and time which is always short.)
Anyway, if you have an interest in rooting this phone have a look for a thread under twrp Q&A.
Cheers.

Seems like it was just a matter of waiting... XN Logos has come up with a solution, it appears --
https://www.stupdroid.com/2018/07/root-twrp-lenovo-k520.html?m=1
At least I managed some in depth reading in the meantime. I'll report back on success of the procedure.

Hi I have also a Lenovo s5. I hated zui 3.7 too and I succeded in installing Lineage OS 15.1 by phh using only fastboot mode... I tried rooting It but unsuccessfully. Now I want twrp and if it would be possible even root. Did you succeed with XN Logos?

Piepoct said:
Hi I have also a Lenovo s5. I hated zui 3.7 too and I succeded in installing Lineage OS 15.1 by phh using only fastboot mode... I tried rooting It but unsuccessfully. Now I want twrp and if it would be possible even root. Did you succeed with XN Logos?
Click to expand...
Click to collapse
Haven't actually tried yet. After all that looking for a root solution I now have been too busy. Will probably do it this Wednesday. I'll keep you posted. Did lineage work well? Any bugs or other issues? ZUI is a dog.

Yeah everything is okay... In the previous updates there was a problem with the audio in ear but now is solved. The only thing that is a little (but not dramatically) worse is battery life because in zui the fact that the os kills every app in background makes the battery last longer.

Hey guys, I know it is no the perfect thread for this yet this phone almost doesn't exist anywhere on the internet. I have the same issue with apps closing as you do. I wanted to install Lineage OS yet as there is no official release for lenovo S5. I would really appreciate some guidance on which release would I install and how. Would it be via the twrp? Thanks in advance.

maikelos27 said:
Hey guys, I know it is no the perfect thread for this yet this phone almost doesn't exist anywhere on the internet. I have the same issue with apps closing as you do. I wanted to install Lineage OS yet as there is no official release for lenovo S5. I would really appreciate some guidance on which release would I install and how. Would it be via the twrp? Thanks in advance.
Click to expand...
Click to collapse
I'd say its this one, maikelos27...
https://forum.xda-developers.com/pr...evice-development/lineage-phh-treble-t3767690
Should be able to use twrp, or via fastboot as mentioned.

ptpi said:
I'd say its this one, maikelos27...
https://forum.xda-developers.com/pr...evice-development/lineage-phh-treble-t3767690
Should be able to use twrp, or via fastboot as mentioned.
Click to expand...
Click to collapse
Thanks ptpi, I will try that probably today and see how it goes.

Lineage Lenovo S5
I'm from Brazil and I have a lenovo S5. I would like to know if someone installed Lineage on Lenovo S5 and could help me do that. thank you

ptpi said:
I'd say its this one, maikelos27...
https://forum.xda-developers.com/pr...evice-development/lineage-phh-treble-t3767690
Should be able to use twrp, or via fastboot as mentioned.
Click to expand...
Click to collapse
Hello, I'm a lucky owner of this beautifull beast, the Lenovo S5 K520, but with the horfull ZUI3.7. I always have been using Cyanogen and after lineage OS.
It did not luck for me to install it on the Lenovo S5.
I manage to install TWRP-3.2.2-0713 with the help of the S-Droid toolkit for Lenovo S5.
From there, I did try every rom from phh on this page : https://forum.xda-developers.com/project-treble/trebleenabled-device-development/lineage-phh-treble-t3767690
but the best I did get is the first logo of lineage OS going on and never stop for hours. I also did try AOSP treble Rom from this site : https://forum.xda-developers.com/project-treble/trebleenabled-device-development/experimental-phh-treble-t3709659, but there I'm getting the Android text changing of ligth theme, but bothing more.
Could you please tell us the procedure and the version of the software you are using so that you are able to use Lineage OS on a Lenovo S5 K520?
Thanks a lot.
Brisferr

Betinhosilva said:
I'm from Brazil and I have a lenovo S5. I would like to know if someone installed Lineage on Lenovo S5 and could help me do that. thank you
Click to expand...
Click to collapse
Hi i did in this way...
1)fastboot -w
2)fastboot erase modemst1
3)fastboot erase modemst2
4) fastboot erase system
5) fastboot erase boot
6) fastboot erase recovery
7) fastboot flash recovery recovery.img
8) fastboot flash boot boot.img
9) fastboot flash system {systemname}.img
The only thing you should do firstly is download the firmware from a video in YouTube whose name is like "ROM Lenovo s5" or something like that and extract the firmware in order to have both boot.img and recovery.img. Hope I could help
P.s. I used phh lineage latest build

Lenovo S5 global version stock rom
Hi everybody!
I was wondering if any of you have a copy of the original ZUI 3.7 non-Chinese stock firmware. I had trouble with my phone and contacted the customer service. Unfortunately, they've sent me the Chinese version (K520_CN_OPEN_USER_Q00011.0_O_ZUI_3.7.355_ST_180412_qpst) and now my phone is almost unusable as the rom only contains crappy Chinese stuff... :crying:
All apps are Chinese and it contains no GApps... I cannot even restore previously save config.
Please help me and send me a backup or the original non-Chinese firmware.
Thank you very much

I didn't even know the existence of an original firmware for non Chinese phones indeed when I bought it it came with a horrible chinese firmware with few translations. Did you find it? Because I want to try it too. If you didn't find it I'm also going to look for it
UnsignedC said:
Hi everybody!
I was wondering if any of you have a copy of the original ZUI 3.7 non-Chinese stock firmware. I had trouble with my phone and contacted the customer service. Unfortunately, they've sent me the Chinese version (K520_CN_OPEN_USER_Q00011.0_O_ZUI_3.7.355_ST_180412_qpst) and now my phone is almost unusable as the rom only contains crappy Chinese stuff... :crying:
All apps are Chinese and it contains no GApps... I cannot even restore previously save config.
Please help me and send me a backup or the original non-Chinese firmware.
Thank you very much
Click to expand...
Click to collapse

How did you unlock your bootloader? Failing to unlock my lenovo s5 k520 bootloader

If I remember correctly just -fastboot oem unlock
dmilz said:
How did you unlock your bootloader? Failing to unlock my lenovo s5 k520 bootloader
Click to expand...
Click to collapse

Piepoct said:
If I remember correctly just -fastboot oem unlock
Click to expand...
Click to collapse
Thanks, rooted and now in bootloop .. Help with stock firmware

I've got only the Chinese one: https://drive.google.com/file/d/15wNyeQ53SbB1xV3gCmXrb-opZSgx2gFQ/view
P.s. I never tested it
dmilz said:
Thanks, rooted and now in bootloop .. Help with stock firmware
Click to expand...
Click to collapse

Piepoct said:
I've got only the Chinese one: https://drive.google.com/file/d/15wNyeQ53SbB1xV3gCmXrb-opZSgx2gFQ/view
P.s. I never tested it
Click to expand...
Click to collapse
will test.. thanks

HELP, BRICKED! MSMTOOL does not solve

Hello friends, I need help!
My phone is totally bricked! No function exists anymore (no fastboot, no recovery) just QDloader, but here my headache begins:
Following https://forum.xda-developers.com/oneplus-6/how-to/op6-collection-unbrick-tools-t3914109/ I downloaded all available versions, nothing worked, "Sha256 DOES NOT MATCH" found out I bought Chinese version of OP6, it is very rare to find MSMTOOL version for Chinese, and the only one I found didn't work "SHA256 DOES NOT MATCH"
I do not know what else to do ! I need your genius!
* Already tried to uncheck "SHA256 CHECK", and it works, the whole system is transferred to the phone but when it ends simply nothing happens, continues bricked
**all info: ONEPLUS A6000 - 6/64GB - B182-181006 (Need some more info?)
*** I found that it is Chinese due to the red "band" that comes with the box / charger. photo:
https://i.imgur.com/gfL9v8S.jpg sorry for link, using image tool i have bug

Here is the link to the latest hydrogen os for the op6,
http://download.h2os.com/OnePlus6/MP/OnePlus6Hydrogen_22_OTA_034_all_1909041314_0edfbb2dfaa34e94.zip
Got it from the official website (https://www.oneplus.com/cn/support/softwareupgrade/details?code=PM1574150497163)
Reading through other posts, people just flashed oxygen using the local upgrade option and it worked. Ofcourse the hardware differences between the model's cannot be overcome.
Try flashing hydrogen first, then use the local upgrade to move up to oos and see if that works.

cbarai said:
Here is the link to the latest hydrogen os for the op6,
http://download.h2os.com/OnePlus6/MP/OnePlus6Hydrogen_22_OTA_034_all_1909041314_0edfbb2dfaa34e94.zip
Got it from the official website (https://www.oneplus.com/cn/support/softwareupgrade/details?code=PM1574150497163)
Reading through other posts, people just flashed oxygen using the local upgrade option and it worked. Ofcourse the hardware differences between the model's cannot be overcome.
Try flashing hydrogen first, then use the local upgrade to move up to oos and see if that works.
Click to expand...
Click to collapse
Thanks for trying to help friend. Like I said, the device is without recovery, outside of QDLoader, nothing works

Perhaps you should give this thread a look. It saved my behind several times.
https://forum.xda-developers.com/oneplus-6/how-to/rom-stock-fastboot-roms-oneplus-6-t3796665

caitsith810 said:
Perhaps you should give this thread a look. It saved my behind several times.
https://forum.xda-developers.com/oneplus-6/how-to/rom-stock-fastboot-roms-oneplus-6-t3796665
Click to expand...
Click to collapse
Fastboot bricked man??

Try this and follow exactly! https://forum.xda-developers.com/oneplus-6/how-to/tool-msmdownloadtool-v4-0-international-t3798892

@ brunoerthal1
Im wondering, u said ur OP6 can acutally get into EDL mode. but cannot flash using MSMtool right?!
this case is pretty same as my friend OP2...what is your perivous state before u do brick your OP6?
the OP2 from my friend have EXACT same situation! cannot pass the SHA256...MAYBE the internal SD is damage, hardware related!!!
Suggest u give it to chinese guy and send to china and fix...!

Your OP6 is international version, use this: https://forum.xda-developers.com/oneplus-6/how-to/tool-msmdownloadtool-v4-0-international-t3798892

Qualcomm Crashdump

Hi all
I have just bought a new Oneplus 6 and wanted to install Lineage Os.
I had initially set up the OP6 with my google account and installed some minimum apps over a couple of days. The phone updated a couple of times. I think I started on Android 8, it definitely updated to Android 9 and I think it updated to Android 10. But I am not completely sure of this because I did not take notice at that stage because I didn't realise that this might have significance..
I followed the guide from the lineaoge os wiki here
wiki.lineageos.org/devices/enchilada[
I got as far as using adb to Fastboot boot twrp-3.3.1-2-enchilada.img (which was the latest image in the dl.twrp.me/enchilada/
It then got stuck in the qualcomm crashdump line on screen.
I spent a day checking posts, including here on XDA. There are a lot of posts dealing with this issue and I did try to follow some of them with less or more success but no resolve. I downloaded Android 9.02 and used the following instructions
techtrickz.com/how-to/recover-oneplus-6-and-6t-from-qualcomm-crashdump-mode/
The routine started to run and then posted a series of error messages and exited. ( I have a screenshot of the terminal window but cannot see a way to post it here)
I have tried to research this further and there are plenty of posts and lots of suggestions. But to be honest I have become confused as some of the posts give significantly different solutions to each other.
I wondered whether it would be possible to give me some help or point me in the right direction to a post which is current and has the steps that I am likely to need succeed..
Thanks in advance for any help you can give.

grego34 said:
Hi all
I have just bought a new Oneplus 6 and wanted to install Lineage Os.
I had initially set up the OP6 with my google account and installed some minimum apps over a couple of days. The phone updated a couple of times. I think I started on Android 8, it definitely updated to Android 9 and I think it updated to Android 10. But I am not completely sure of this because I did not take notice at that stage because I didn't realise that this might have significance..
I followed the guide from the lineaoge os wiki here
wiki.lineageos.org/devices/enchilada[
I got as far as using adb to Fastboot boot twrp-3.3.1-2-enchilada.img (which was the latest image in the dl.twrp.me/enchilada/
It then got stuck in the qualcomm crashdump line on screen.
I spent a day checking posts, including here on XDA. There are a lot of posts dealing with this issue and I did try to follow some of them with less or more success but no resolve. I downloaded Android 9.02 and used the following instructions
techtrickz.com/how-to/recover-oneplus-6-and-6t-from-qualcomm-crashdump-mode/
The routine started to run and then posted a series of error messages and exited. ( I have a screenshot of the terminal window but cannot see a way to post it here)
I have tried to research this further and there are plenty of posts and lots of suggestions. But to be honest I have become confused as some of the posts give significantly different solutions to each other.
I wondered whether it would be possible to give me some help or point me in the right direction to a post which is current and has the steps that I am likely to need succeed..
Thanks in advance for any help you can give.
Click to expand...
Click to collapse
I would recommend using fastboot flashable stock rom from here. People also like to use msmtool, but I feel like it is an overkill.
Please note this warning:
These ROMs can't be used to update or downgrade your phone but just to restore your phone, so don't use them to come back to oreo or to update from oreo to pie.
So grab the latest oxygen os 10, and follow the instructions to flash it. After that, if you are feeling a bit paranoid maybe download a zip from oneplus and do a local update. You now should have your phone back.
Official TWRP does not support android 10 yet, as far as I understand, so that is probably the issue. If you want lineageos 16, you should downgrade to android 9 using a downgrade package provided by oneplus and then update to Oxygen OS 9.0.9.
There is unofficial twrp by mauronofrio that supports android 10. If you want to go from OOS 10 to some other android 10 rom

[email protected] said:
I would recommend using fastboot flashable stock rom from here. People also like to use msmtool, but I feel like it is an overkill.
Please note this warning:
These ROMs can't be used to update or downgrade your phone but just to restore your phone, so don't use them to come back to oreo or to update from oreo to pie.
So grab the latest oxygen os 10, and follow the instructions to flash it. After that, if you are feeling a bit paranoid maybe download a zip from oneplus and do a local update. You now should have your phone back.
Official TWRP does not support android 10 yet, as far as I understand, so that is probably the issue. If you want lineageos 16, you should downgrade to android 9 using a downgrade package provided by oneplus and then update to Oxygen OS 9.0.9.
There is unofficial twrp by mauronofrio that supports android 10. If you want to go from OOS 10 to some other android 10 rom
Click to expand...
Click to collapse
Thanks very much for your helpful reply. I am now back to a working phone with Oxygen os10. And you have also explained what was wrong when I tried to fix it, I was trying to load an Oxygen Os 9 on a phone that had already been upgraded to 10 and you have explained what went wrong in the first place, I was trying to flash an incompatible TWRP image onto Android 10. So your short post has explained a lot. Thank you.
I am not feeling paranoid unless you advise that I should be and I do want to install lineage os. So I need to revert to Oxygen Os9. I have looked on the Oneplus site and that have found the option to Upgrade to 10.3 but no option to downgrade. In the Oneplus community there is a link to downloadable ROMs, these are divided into a number of folders some of which look not applicable. There are three folders that look of interest
1. Signed flashable zips
2. OTA incremental update zips
3. Stock boot-recovery images
Here is the link /forums.oneplus.com/threads/oneplus-6-rom-ota-oxygen-os-mirrors-for-official-oxygen-os-roms-and-ota-updates.835607/
I can see it is not the OTA Incremental that I need but am unsure if it is signed flashable zips or Stock boot recovery images. or whether it is neither.
Do I flash as normal or would it be a local update?
I would be grateful for any further advice.
Thanks again and for any help provided now.

grego34 said:
Thanks very much for your helpful reply. I am now back to a working phone with Oxygen os10. And you have also explained what was wrong when I tried to fix it, I was trying to load an Oxygen Os 9 on a phone that had already been upgraded to 10 and you have explained what went wrong in the first place, I was trying to flash an incompatible TWRP image onto Android 10. So your short post has explained a lot. Thank you.
I am not feeling paranoid unless you advise that I should be and I do want to install lineage os. So I need to revert to Oxygen Os9. I have looked on the Oneplus site and that have found the option to Upgrade to 10.3 but no option to downgrade. In the Oneplus community there is a link to downloadable ROMs, these are divided into a number of folders some of which look not applicable. There are three folders that look of interest
1. Signed flashable zips
2. OTA incremental update zips
3. Stock boot-recovery images
Here is the link /forums.oneplus.com/threads/oneplus-6-rom-ota-oxygen-os-mirrors-for-official-oxygen-os-roms-and-ota-updates.835607/
I can see it is not the OTA Incremental that I need but am unsure if it is signed flashable zips or Stock boot recovery images. or whether it is neither.
Do I flash as normal or would it be a local update?
I would be grateful for any further advice.
Thanks again and for any help provided now.
Click to expand...
Click to collapse
I have had luck with this downgrade package. I basically googled it, the package is hosted on a legitimate website, so that's what I used. Just download it, put it on your phone and do a local upgrade through updater app.
Once you have done that I would recommend upgrading to the latest Android 9, which is OOS version 9.0.9 I believe. Then go ahead and follow instructions to install lineageos.
I am actually on LineageOS 16 + MicroG right now, so I ran into the same problems you did Glad I could help!

TexnoViking said:
I have had luck with //oxygenos.oneplus.net/fulldowngrade_wipe_MSM_17819_181025_2315_user_MP1_release.zip" downgrade package. I basically googled it, the package is hosted on a legitimate website, so that's what I used. Just download it, put it on your phone and do a local upgrade through updater app.
Once you have done that I would recommend upgrading to the latest Android 9, which is OOS version 9.0.9 I believe. Then go ahead and follow instructions to install lineageos.
I am actually on LineageOS 16 + MicroG right now, so I ran into the same problems you did Glad I could help!
Click to expand...
Click to collapse
Thanks so much for your reply again.
I used your downgrade link and that all worked well and then let it upgrade to OOS 9.0.9. Again all very positive.
I then tried to flash TWRP to the device using this image "twrp-3.3.1-2-enchilada.img" It appeared to flash okay. Then I issued the command
"fastboot boot twrp-3.3.1-2-enchilada.img" over my adb connection and it returned to the Qualcomm Crashdump error.
I presume I have to start again with the exception that this time I can use a flashable stock rom that is OOS 9.09? Is that correct?
Then do you have any suggestions for getting round the TWRP problem? Did you use a different version?
Thanks in advance for any help.

grego34 said:
Thanks so much for your reply again.
I used your downgrade link and that all worked well and then let it upgrade to OOS 9.0.9. Again all very positive.
I then tried to flash TWRP to the device using this image "twrp-3.3.1-2-enchilada.img" It appeared to flash okay. Then I issued the command
"fastboot boot twrp-3.3.1-2-enchilada.img" over my adb connection and it returned to the Qualcomm Crashdump error.
I presume I have to start again with the exception that this time I can use a flashable stock rom that is OOS 9.09? Is that correct?
Then do you have any suggestions for getting round the TWRP problem? Did you use a different version?
Thanks in advance for any help.
Click to expand...
Click to collapse
Hm. Yes, unfortunately the safest thing to do is to start again. But you can start with 9.0.9 right away.
People have been discussing a similar issue here. It seems like using unofficial twrp by blu_spark helps. Maybe twrp-3.2.3-x_blu_spark_v9.91_op6.img or maybe try the latest one.
Also, make sure you read the instructions on lineageos website. Make sure you have oem unlocked, usb debugging enabled and you clicked "always give access to this" device or something, do the fastboot set_active a. I have also used fastboot flash boot_a <recovery_filename>.img. However, I do recall using fastboot boot <recovery_filename>.img some other time and I think it worked....
Anyway, yeah, maybe try this modified recovery by blu spark and follow the instructions carefully.

TexnoViking said:
Hm. Yes, unfortunately the safest thing to do is to start again. But you can start with 9.0.9 right away.
People have been discussing a similar issue here. It seems like using unofficial twrp by blu_spark helps. Maybe twrp-3.2.3-x_blu_spark_v9.91_op6.img or maybe try the latest one.
Also, make sure you read the instructions on lineageos website. Make sure you have oem unlocked, usb debugging enabled and you clicked "always give access to this" device or something, do the fastboot set_active a. I have also used fastboot flash boot_a <recovery_filename>.img. However, I do recall using fastboot boot <recovery_filename>.img some other time and I think it worked....
Anyway, yeah, maybe try this modified recovery by blu spark and follow the instructions carefully.
Click to expand...
Click to collapse
Thanks very much for your helpful reply and apologies for the delay in my reply to this post, I have been tied up with work the last couple of days.
I did re-install OOS 9 and then followed the instructions on the Team Win site to install TWRP in the Oneplus6. I had success after I used the latest TWRP image and zip from that site . I was then able to install Lineage OS and Microg as I wished.
So thanks for the help all. Really appreciated.

grego34 said:
Thanks very much for your helpful reply and apologies for the delay in my reply to this post, I have been tied up with work the last couple of days.
I did re-install OOS 9 and then followed the instructions on the Team Win site to install TWRP in the Oneplus6. I had success after I used the latest TWRP image and zip from that site . I was then able to install Lineage OS and Microg as I wished.
So thanks for the help all. Really appreciated.
Click to expand...
Click to collapse
Great! I am glad you managed to fix your phone! Enjoy

Question Rog Phone 5s Pro RAW Files

Hello all,
I am in need of some help please.
I have 18.1220.2109.126 installed presently. I have the EU version/WW version of this phone.
I want to upgrade to the latest firmware but I have an unlocked boot loader and root.
Can someone please provide me with the links for the firmware and an upgrade path from this firmware if i cant go direct?
Thanks
Valen.

as I've wrote a couple times before....
you could've just googled how to manually ota update asus phones. they works more less the same:
1. download the update pkg to the phone.
2. move it to the root of the storage (i.e. the first page you open when you tap internal storage in fm.
3. charge your device to at least 60% and up.
4. reboot the phone.
5. after a while it should give a popup saying update found, tap on it and start local ota.
some notes:
if you want to keep magisk then DONT reboot after ota finished. go to magisk manager and select install to inactive slot. then you can reboot.
This only works for updates not downgrade. if you flashed 31.xxxxx (A12) then you cant go back to 18.xxxx (A11), it won't give you the prompt.
Click to expand...
Click to collapse

yurishouse said:
as I've wrote a couple times before....
Click to expand...
Click to collapse
I am having some trouble navigating this thread. its a mess of stuff.... Other phones have sectioned areas for exactly what i need.
THank you for replying to me. I have begun doing this and am updating as we speak. Sorry i made you repeat yourself.

np

Hi,
It would be awesome if getting to one build.prop from pro
And is Armoury Crate version in pro 5.50.0.49_220124 ? 124MB ?
In: system / priv-app / ROGGameCenter
Plz
Thank you

good afternoon i also have this version 18.1220.2109.126 is there a latest version other than this? because i have an warning saying my installed firmware does not match the device origin

How To Guide How to rollback to Android 11. Nord CE 2 (IV2201) ONLY

Everybody knows that after upgrading to C_07, we lost access to mtkclient, root, and many more, and Oneplus support sucks.
So, this guide will help you go back to Android 11 and back to root.
This rollback install will wipe all your data, so make a backup first. I did it on my own device and took the risk of bricking it, and I did it once because I'm not nuts to do it again. Only do it if you are comfortable. I'm not responsible for any damage to your device.
I was on C_10 (Android 12) and downloaded the rollback package for Android 13 from https://community.oneplus.com/thread/1267587167833030657 (I posted the links from the source below because Oneplus has the bad habit of removing the links). Download the appropriate file to your device. If you don't know, you have to download all three and try them.
Links:
ROM IN: https://oxygenos.oneplus.net/11011_oplus_ota_downgrade.zip
ROM EU: https://oxygenos.oneplus.net/21342_Beta1__downgrade_ota_CPH2409.zip
ROM GLO: https://oxygenos.oneplus.net/21342_Beta1__downgrade_ota_CPH2409_10100111.zip
Go to update, and if you do not see the local install, you need to go to the build number and click seven times to enable developer options.
After downloading, rename the file to oplus_ota_downgrade.zip. Go to update, select local update, and install this package. When the install finishes, the device will reboot and will be wiped. After that, you need to configure your device. At this time, the device will be on C_09.
Go to update, and a third option will be available, the option to join the beta or something like that. Click on that, and after requesting to join the beta test, go back and click again on update, and a new update to (Android 13) F.45 will show if I remember correctly. Once done, download the rollback package to Android 11, available on https://www.droidwin.com/downgrade-oneplus-nord-ce-2-from-android-12-to-android-11/.
ROM IN: https://oxygenos.oneplus.net/oplus_ota_downgrade_Rollback.zip
ROM EU: https://oxygenos.oneplus.net/oplus_ota_downgrade_Rollback_EEA.zip
ROM GLO: https://oxygenos.oneplus.net/oplus_ota_downgrade_Rollback_GLO.zip
Remember to rename it to oplus_ota_downgrade.zip. Go to update, select local install, and choose the zip file. After applying this update (which will take more time than before, it looks like it's broken at 94%, but just wait), the device will be wiped again. Done with the setup again (now you are on A_13 Android 11), power off the device, and press Vol- and Power, and you will have access to fastboot. Yes, now we have fastboot back! On a computer, plug in your device (supposedly, you had installed drivers before).
Execute:
fastboot devices
And, if it returns something like this: SOMERANDOMCARACTERS(Serial number of your device) fastboot
Execute:
fastboot flash preloader preloader_oplus6877.bin (this preloader is attached to this post).
And you're done! Now you can use mtkclient again. Just remember not to update your device until we find a way to keep the preloader vulnerable to the mtkclient exploit.

Thank you so much for posting this!

Hi @brunowm perfect guide... and thank you in advance for your patience and understanding as I am not an expert on these things and I only want to rollback to Android 11... few (perhaps silly) questions (I am in android 12 build number IV2201_11_C. 10) at the moment:
- do i need to be connected to wifi when doing these operations?
- What am i doing wrong that sometimes goes to "safe mode" and I can't get it out from there at all, only by trying to install the rollback (which fails, look next).
- I wish to understand better why when I try directly to install this: oplus_ota_downgrade_Rollback_EEA.zip (your second set of links) it starts installing but stops at 16%, then reboots and says that the update failed. Is it because of missing the beta installation that you pointed first?
- However, I tried with the beta file (21342_Beta1__downgrade_ota_CPH2409.zip) but the verification fails.... it says that package is not compatible with your system ... could this be because I am in Android 12 and this is the rollback from Android 13? Nonetheless you do mention this situation, so I am a bit confused :-(
- Also, it seems that one of those downgrade.zip files helps you to downgrade first from 12.1 to 12. This file is verified, recognized but similarily to the one that goes from 12-->11 it stops at 16%, reboots and then it shows message that it failed...
I'm really desperate so, any light at the end of the tunnel is highly appreciated!
ps.
- is there any possibility to rollback to earlier oxygen versions for example 1.2 or so?

burningcreation said:
Thank you so much for posting this!
Click to expand...
Click to collapse
Very quick question, do you think now is possible to downgrade this device from Android 12 ->11?

k.whatamidoing said:
Hi @brunowm perfect guide... and thank you in advance for your patience and understanding as I am not an expert on these things and I only want to rollback to Android 11... few (perhaps silly) questions (I am in android 12 build number IV2201_11_C. 10) at the moment:
- do i need to be connected to wifi when doing these operations?
- What am i doing wrong that sometimes goes to "safe mode" and I can't get it out from there at all, only by trying to install the rollback (which fails, look next).
- I wish to understand better why when I try directly to install this: oplus_ota_downgrade_Rollback_EEA.zip (your second set of links) it starts installing but stops at 16%, then reboots and says that the update failed. Is it because of missing the beta installation that you pointed first?
- However, I tried with the beta file (21342_Beta1__downgrade_ota_CPH2409.zip) but the verification fails.... it says that package is not compatible with your system ... could this be because I am in Android 12 and this is the rollback from Android 13? Nonetheless you do mention this situation, so I am a bit confused :-(
- Also, it seems that one of those downgrade.zip files helps you to downgrade first from 12.1 to 12. This file is verified, recognized but similarily to the one that goes from 12-->11 it stops at 16%, reboots and then it shows message that it failed...
I'm really desperate so, any light at the end of the tunnel is highly appreciated!
ps.
- is there any possibility to rollback to earlier oxygen versions for example 1.2 or so?
Click to expand...
Click to collapse
Hi, you have renamed the downloaded file 21342_beta1__downgrade_ota_cph2409.zip to oplus_ota_downgrade.zip ? It's better doing with internet (wifi or 5G) off. After this install you will be able to update to Android 13 and from this version (F_45) you can rollback to Android 11

Hey @brunowm, I followed your first step and was able to roll back to C_09. However, there are no available beta programs to update my phone to Android 13. Should I bite the bullet and proceed with step 2 or is there a known issue that the second step will not work with Android 12?

Hi, I just wanted to give an update @brunowm . I was able to downgrade the OS to C_09 from C_10, by following your first step. However, the option to join the beta program is not available to me, hence I cannot join the Android 13 beta yet.
I can't execute your second package since I am experiencing the same issue as @k.whatamidoing where the downgrade terminates at 16%.
Do you have any idea if there is any criteria I need to meet for joining the beta program? I have already enabled developers option.

Atest117 said:
Hi, I just wanted to give an update @brunowm . I was able to downgrade the OS to C_09 from C_10, by following your first step. However, the option to join the beta program is not available to me, hence I cannot join the Android 13 beta yet.
I can't execute your second package since I am experiencing the same issue as @k.whatamidoing where the downgrade terminates at 16%.
Do you have any idea if there is any criteria I need to meet for joining the beta program? I have already enabled developers option.
Click to expand...
Click to collapse
You have enabled developer mode ?

brunowm said:
You have enabled developer mode ?
Click to expand...
Click to collapse
Atest117 said:
Hi, I just wanted to give an update @brunowm . I was able to downgrade the OS to C_09 from C_10, by following your first step. However, the option to join the beta program is not available to me, hence I cannot join the Android 13 beta yet.
I can't execute your second package since I am experiencing the same issue as @k.whatamidoing where the downgrade terminates at 16%.
Do you have any idea if there is any criteria I need to meet for joining the beta program? I have already enabled developers option.
Click to expand...
Click to collapse
I don't know but maybe with only avaliable for indian rom version.