Downgrade Oxygen OS without root - OnePlus 8 Pro Questions & Answers

Hi, since Oxygen OS is going to be updated to remove the Photochrom filter, if I buy the device in a year, could I just downgrade to have the feature? I don't want to root it to preserve security. Never had Oxygen OS or any OnePlus device, no idea how this works.

scandiun said:
Hi, since Oxygen OS is going to be updated to remove the Photochrom filter, if I buy the device in a year, could I just downgrade to have the feature? I don't want to root it to preserve security. Never had Oxygen OS or any OnePlus device, no idea how this works.
Click to expand...
Click to collapse
There is almost always a way to downgrade, however there is almost always a set of horror stories stating the users phones have been bricked.
Unless it's completely necessary I would avoid that procedure.
Or
Tread very carefully

dladz said:
There is almost always a way to downgrade, however there is almost always a set of horror stories stating the users phones have been bricked.
Unless it's completely necessary I would avoid that procedure.
Or
Tread very carefully
Click to expand...
Click to collapse
Would you mind posting a guide to down grading? I keep getting an error that says I can't go to an older version

SlapyTA said:
Would you mind posting a guide to down grading? I keep getting an error that says I can't go to an older version
Click to expand...
Click to collapse
Not via a conventional means no, but you can. There's a guide already on the 8 pro forum.
Here's you go.
Make sure to read this before you do anything
https://forum.xda-developers.com/oneplus-8-pro/how-to/rom-stock-fastboot-roms-oneplus-8-pro-t4083997
I will be making a guide at some point.

Related

ota update rooted oc4

I have received a notice of an OTA update for my SM-G900V. I am rooted Via towel root. android version 5.0 oc4 kernel 3.4.0 I did try to accept the update and it failed.
I since have tuned off update notices in T.B. Is this update something I need or even want? Or should I just keep the update
notification turned off? I don't want to lose root. Thanks in advance to all of the members and posters and XDA in general.
I have the same phone configuration as you, android version 5.0 oc4, kernel 3.4.0, but when I attempt to run Towelroot it tells me " This phone is not currently supported". Can you help me figure out how to root mine? Or point me to a step by step instructions for dummies(me)? Thank you.
LDBAKE said:
I have the same phone configuration as you, android version 5.0 oc4, kernel 3.4.0, but when I attempt to run Towelroot it tells me " This phone is not currently supported". Can you help me figure out how to root mine? Or point me to a step by step instructions for dummies(me)? Thank you.
Click to expand...
Click to collapse
You're not trying to use towelroot on lollipop, are you?
If 5.0 is lollipop, and it is, then yes. I seem to have the same config as the OP and he indicated that he was rooted using towell root, so I was asking how he did it. Can you suggest a way to root 5.0? Thanks.
LDBAKE said:
If 5.0 is lollipop, and it is, then yes. I seem to have the same config as the OP and he indicated that he was rooted using towell root, so I was asking how he did it. Can you suggest a way to root 5.0? Thanks.
Click to expand...
Click to collapse
1. You can't
2. Search first on how to downgrade
3. See #2
ldeveraux said:
1. You can't
2. Search first on how to downgrade
3. See #2
Click to expand...
Click to collapse
Thanks. I've only had this phone for a few weeks, and I immediately started looking for a root process to get rid of bloatware. Very confusing situation. Lots of posts about One Click Root, Towelroot, etc....all very misleading, for a noob to Samsung. I had already seen the post you suggested, but (at this point) am not terribly interested in the downgrading route. Maybe later. Keep hopeing one of the brilliant devs here will figure out a way to root without downgrading first.
LDBAKE said:
Thanks. I've only had this phone for a few weeks, and I immediately started looking for a root process to get rid of bloatware. Very confusing situation. Lots of posts about One Click Root, Towelroot, etc....all very misleading, for a noob to Samsung. I had already seen the post you suggested, but (at this point) am not terribly interested in the downgrading route. Maybe later. Keep hopeing one of the brilliant devs here will figure out a way to root without downgrading first.
Click to expand...
Click to collapse
This is what people don't understand: No one is working to root this phone on lollipop. There are assuredly folks working to crack the OS in general, but frankly no one cares about a legacy phone now that the S6 is out. So until L is exploited, there won't be any news for this phone.
So if your phone came with an OS lower than OE1, your only choice right now is to backup, downgrade, TR, profit. There is no one-click-root for the 900V. Honestly, just take half a day and do it. You'll be glad you did for just AdAway!
Read, reread the read again. then set aside a few hours. Good luck
http://forum.xda-developers.com/ver...-to-downgrade-lollipop-5-0-to-kitkat-t3088571
I don't wanna...
ldeveraux said:
This is what people don't understand: No one is working to root this phone on lollipop. There are assuredly folks working to crack the OS in general, but frankly no one cares about a legacy phone now that the S6 is out. So until L is exploited, there won't be any news for this phone.
So if your phone came with an OS lower than OE1, your only choice right now is to backup, downgrade, TR, profit. There is no one-click-root for the 900V. Honestly, just take half a day and do it. You'll be glad you did for just AdAway!
Click to expand...
Click to collapse
...I don't wanna hack it. I am a professional developer that wants to legitimately register with Google as a trusted developer and get granted legal root access. Anywhow if I were to take half a day to do it, the next day Google updated the phone to Marshmallow 6.0 and I have to start all over again...like the proverbial sysyphus....
John Bonifas said:
...I don't wanna hack it. I am a professional developer that wants to legitimately register with Google as a trusted developer and get granted legal root access. Anywhow if I were to take half a day to do it, the next day Google updated the phone to Marshmallow 6.0 and I have to start all over again...like the proverbial sysyphus....
Click to expand...
Click to collapse
If you were a professional, then you could probably figure out how to do it yourself?
I figured it out...
ldeveraux said:
If you were a professional, then you could probably figure out how to do it yourself?
Click to expand...
Click to collapse
nah, nah, I was full of it. Apologies. See - what the carriers don't want you to know is that there are actually TWO versions of a device - the consumer version, which is completely locked down (as it should be), and the developer version of the device. OK, yeah the developer version of a device usually costs twice as much as the consumer version - but the bootloader is unlocked, it's easy to flash away the stock, non-root consumer ROM without fear of bricking, and its APIs probably have many more functions that help with debugging and performance tuning. So as a professional developer what I need to do is trade in my Galaxy S5 consumer edition for the developer edition, and I'll be able to install MultiROM, CyanogenMod, SuperSU, and all the other developer candy.
:good:
John Bonifas said:
nah, nah, I was full of it. Apologies. See - what the carriers don't want you to know is that there are actually TWO versions of a device - the consumer version, which is completely locked down (as it should be), and the developer version of the device. OK, yeah the developer version of a device usually costs twice as much as the consumer version - but the bootloader is unlocked, it's easy to flash away the stock, non-root consumer ROM without fear of bricking, and its APIs probably have many more functions that help with debugging and performance tuning. So as a professional developer what I need to do is trade in my Galaxy S5 consumer edition for the developer edition, and I'll be able to install MultiROM, CyanogenMod, SuperSU, and all the other developer candy.
:good:
Click to expand...
Click to collapse
What you NEED to do is stop drinking before you post. Every user here knows of the dev edition, you're adding nothing new.
ldeveraux said:
This is what people don't understand: No one is working to root this phone on lollipop. There are assuredly folks working to crack the OS in general, but frankly no one cares about a legacy phone now that the S6 is out. So until L is exploited, there won't be any news for this phone.
So if your phone came with an OS lower than OE1, your only choice right now is to backup, downgrade, TR, profit. There is no one-click-root for the 900V. Honestly, just take half a day and do it. You'll be glad you did for just AdAway!
Click to expand...
Click to collapse
...Except if you have a *Verizon* consumer edition phone. Then your out of luck, right? not even downgrading to 4.4 first will work, right? because of the signed bootloader image?
John Bonifas said:
...Except if you have a *Verizon* consumer edition phone. Then your out of luck, right? not even downgrading to 4.4 first will work, right? because of the signed bootloader image?
Click to expand...
Click to collapse
You have to read what he wrote. If your Verizon consumer edition phone has the OE1 or OG5 build you have the locked down signed bootloader. If your Verizon consumer edition has a build prior to OE1, you can still downgrade to KitKat, root, and run a few ROMs through Safestrap or Flashfire.
landshark68 said:
You have to read what he wrote. If your Verizon consumer edition phone has the OE1 or OG5 build you have the locked down signed bootloader. If your Verizon consumer edition has a build prior to OE1, you can still downgrade to KitKat, root, and run a few ROMs through Safestrap or Flashfire.
Click to expand...
Click to collapse
here is my build number: LRX21T.G900VVRU2BOG5
...am I out of luck?
thank you again for your continuing help landshark68, I'm an old PC developer but a complete noob at mobile dev, deciding whether to develop for Android, IOS, or Windows.
John Bonifas said:
here is my build number: LRX21T.G900VVRU2BOG5
...am I out of luck?
thank you again for your continuing help landshark68, I'm an old PC developer but a complete noob at mobile dev, deciding whether to develop for Android, IOS, or Windows.
Click to expand...
Click to collapse
BOG5, you are out of luck. Sorry.
mercermtn said:
I have received a notice of an OTA update for my SM-G900V. I am rooted Via towel root. android version 5.0 oc4 kernel 3.4.0 I did try to accept the update and it failed.
I since have tuned off update notices in T.B. Is this update something I need or even want? Or should I just keep the update
notification turned off? I don't want to lose root. Thanks in advance to all of the members and posters and XDA in general.
Click to expand...
Click to collapse
How do you turn off the OTA notification? I'm not gonna bother with the update but the notification is irritating.
B. J. said:
How do you turn off the OTA notification? I'm not gonna bother with the update but the notification is irritating.
Click to expand...
Click to collapse
You disable it in tb
ldeveraux said:
You disable it in tb
Click to expand...
Click to collapse
Yes. Thank you but my question is how do you disable it in Titanium backup. I'm not sure what it's called or what exactly to disable. Also when I find it do I disable it by freezing? I've tried what I thought was disabling it but I still get them. So I think I must be doing something wrong
B. J. said:
Yes. Thank you but my question is how do you disable it in Titanium backup. I'm not sure what it's called or what exactly to disable. Also when I find it do I disable it by freezing? I've tried what I thought was disabling it but I still get them. So I think I must be doing something wrong
Click to expand...
Click to collapse
Freeze all packages in tb with the words SDM and SPD. Our you could delete them, but I wouldn't...

Question with modding A2017G model

I am not new to the whole flashing and rooting process, did it for quite some time, but now reading about the A2017G version got me a bit scared, because I can't afford to lose the phone right now, and most of the methods are outdated or really unreliable. Please help with this problem, if you know a thread how to unlock bootloader and get root with clear instructions then link it please, and if it requires downgrading, because I am on 7.1.1., please also link how to do that, because I never did it.
Jazkade said:
I am not new to the whole flashing and rooting process, did it for quite some time, but now reading about the A2017G version got me a bit scared, because I can't afford to lose the phone right now, and most of the methods are outdated or really unreliable. Please help with this problem, if you know a thread how to unlock bootloader and get root with clear instructions then link it please, and if it requires downgrading, because I am on 7.1.1., please also link how to do that, because I never did it.
Click to expand...
Click to collapse
didn't you see the stickied toolkit?
Just don't even think about relocking the bootloader after rooting the phone.
Choose an username... said:
didn't you see the stickied toolkit?
Just don't even think about relocking the bootloader after rooting the phone.
Click to expand...
Click to collapse
WARNING: Some A2017G devices may be PERMANENTLY bricked when flashing packages through EDL mode due to slightly different partition tables. USE AT YOUR OWN RISK.
I got my axon 7 on friday, I rooted it within 30 minutes after getting home with it
I used the toolkit and it worked very well, I have the 2017G version, unlocked, bought in Romania.
Jazkade said:
I am not new to the whole flashing and rooting process, did it for quite some time, but now reading about the A2017G version got me a bit scared, because I can't afford to lose the phone right now, and most of the methods are outdated or really unreliable. Please help with this problem, if you know a thread how to unlock bootloader and get root with clear instructions then link it please, and if it requires downgrading, because I am on 7.1.1., please also link how to do that, because I never did it.
Click to expand...
Click to collapse
Lol everything is that way here. I 'permanently bricked' mine after I rebooted it without a system, it didn't even show the ZTE screen. Got it to life with a screwdriver and patience
Or use controllerboy's guide, which you could've used all along without even asking here
In other words, either take the plunge or stay stock. There's no 100% safe way to do this, there are a bunch of people who brick their phones while following the guides, and they brick them for no apparent reason as they were doing everything right
Mine has personal and work SIM so don't want to compromise it's use at all.
RobboW said:
Mine has personal and work SIM so don't want to compromise it's use at all.
Click to expand...
Click to collapse
you can still use dual sim on LOS anyways

How to downgrade from 11.0.1.1.in11aa back to OS11

Hi since updating my oneplus 8 pro in2020 to stable build 11.0.1.1.in11aa I have lost the ability to connect to 5g on my phone, even though there were some other improvements (like battery life) I would rather downgrade to stable build 11.0.0.0. I am very new at this and my device is not rooted, is there any way to downgrade without wiping the device? I know oneplus released a downgrade package to oxygen 10, and then you can upgrade to 11 from there, but doing this would make me lose all data. Is there a simpler way to downgrade straight to 11 without the whole procedure? Thank you.
If you go for MSM which you may do, then no.
You could perhaps get a full img and go that way but I've not done this myself.
Check the MSM thread, chances are this questions been asked and answered.
Also saw a thread for 11AA too with a full zip so check that one out too.
You can use "downgrade.zip"from 11 to 10.
I don't understand why people guide you to MSM tool. That is for bricked devices and is the last resort.
Anyway downgrade will wipe youre phone clean.
null0seven said:
You can use "downgrade.zip"from 11 to 10.
I don't understand why people guide you to MSM tool. That is for bricked devices and is the last resort.
Anyway downgrade will wipe youre phone clean.
Click to expand...
Click to collapse
Yea this is what I thought about doing, I guess I don't have any other choice, would rather not resort to MSM right from the get go
null0seven said:
You can use "downgrade.zip"from 11 to 10.
I don't understand why people guide you to MSM tool. That is for bricked devices and is the last resort.
Anyway downgrade will wipe youre phone clean.
Click to expand...
Click to collapse
Did you read my post? I tried to dissuade from using MSM!
Plus you just provided the same answer I did? In so many words.
I've always told people that MSM is an excessive resort to mundane issues, I'm far from a person who advises to use it without due diligence and an alternative that may work.
i faced same issue, follow this guide and once you done u will get your 5g Back + volte.
https://docs.google.com/document/d/1ejLtVQTpXZaB5XGNOBRI5dZV4GpuCKtHOGo6v49hWdY/edit#
after that if you dont need to root and relock your bootoarder flash with msm.
dladz said:
If you go for MSM which you may do, then no.
You could perhaps get a full img and go that way but I've not done this myself.
Check the MSM thread, chances are this questions been asked and answered.
Also saw a thread for 11AA too with a full zip so check that one out too.
Click to expand...
Click to collapse
I did a full downgrade to 10 with the rollback package from oneplus and then reupdated to 11.0.0.0, thanks for the suggestions though!

Drm downgrade

Hi, i have oxygen os 11.0.2.2 and a few days ago i realiesed that my drm level downgraded from l1 to l3 randomly, i also red that other users have been experiecing this. Do you have any solutions?
Thank you
kuteki707 said:
Hi, i have oxygen os 11.0.2.2 and a few days ago i realiesed that my drm level downgraded from l1 to l3 randomly, i also red that other users have been experiecing this. Do you have any solutions?
Thank you
Click to expand...
Click to collapse
No there's nothing you can do about that.
Are you just on stock? Or? What is your current setup? Any mods/xposed?
Yes, i am 100% stock, bootloader locked.
Yes I'm the same just happened to me after the last couple of updates. What a terrible phone, even my older OP5 has L1.
kuteki707 said:
Yes, i am 100% stock, bootloader locked.
Click to expand...
Click to collapse
Just curious but what kind of lock are you using? And are all your apps up to date ?
Make sure they are compliant.
Reason I ask about the apps and lock screen is that there may have to be a certain criteria met before it allows L3
4 digit PIN may not be adequate, use 6 or a password instead. Maybe don't use facelock instead go with fingerprint.
As you're on stock I can't see anything else that could affect it.
Reboot once you've clarified everything is up to date and add it should be.
I had my phone rooted, and i wanted to come back to stock in a safe way, so i used this: https://forum.xda-developers.com/t/...l-to-restore-your-device-to-oxygenos.4084953/
My drm was fine until a few days ago. All my apps are up to date
Here are my settings. I havent got the update to 11.0.3 yet
kuteki707 said:
Here are my settings. I havent got the update to 11.0.3 yet
Click to expand...
Click to collapse
Install the update using oxygen updater it's no different
That'll be why
Just got it officially, still no change
kuteki707 said:
Just got it officially, still no change
Click to expand...
Click to collapse
Not sure then buddy.
Why do you need it anyway? Regardless of whether you have it or not? There's not a single app I use that has a problem
Thank you for your help
I need it for Netflix. I can only stream SD video now
From what I gather it seems to be some sort of corruption with persist.img IMO. Something like the fingerprint issue... That's why it's not easy to fix per say via "conventional"ways we already know so far.... OnePlus probably will ignore this as it's a random hit and miss and most people that have the problem might not even realize unless they scrutinize Netflix.
sensui123 said:
From what I gather it seems to be some sort of corruption with persist.img IMO. Something like the fingerprint issue... That's why it's not easy to fix per say via "conventional"ways we already know so far.... OnePlus probably will ignore this as it's a random hit and miss and most people that have the problem might not even realize unless they scrutinize Netflix.
Click to expand...
Click to collapse
Personally don't watch Netflix so that was my thinking too
sensui123 said:
From what I gather it seems to be some sort of corruption with persist.img IMO. Something like the fingerprint issue... That's why it's not easy to fix per say via "conventional"ways we already know so far.... OnePlus probably will ignore this as it's a random hit and miss and most people that have the problem might not even realize unless they scrutinize Netflix.
Click to expand...
Click to collapse
Thats so sad :/
But if i use this method again, do you think i have any chance to get the drm level back?
[OP8PRO][OOS 11AA/BA/DA] Unbrick tool to restore your device to OxygenOS
Disclaimer: By attempting any of the processes listed in this thread you accept full responsibility for your actions. I will not be held responsible if your device stops working, catches fire, or turns into a hipster and claims to have been...
forum.xda-developers.com
kuteki707 said:
But if i use this method again, do you think i have any chance to get the drm level back?
[OP8PRO][OOS 11AA/BA/DA] Unbrick tool to restore your device to OxygenOS
Disclaimer: By attempting any of the processes listed in this thread you accept full responsibility for your actions. I will not be held responsible if your device stops working, catches fire, or turns into a hipster and claims to have been...
forum.xda-developers.com
Click to expand...
Click to collapse
No as it doesn't touch that partition.
You'd need the persist.img fix. Just back up your persist.img first, you'll need root for that. AFAIK.
Personally never had to do it
dladz said:
No as it doesn't touch that partition.
You'd need the persist.img fix. Just back up your persist.img first, you'll need root for that. AFAIK.
Personally never had to do it
Click to expand...
Click to collapse
Got it. Thank you for your help
following, mine also broken and none of the tricks to fix it for certain people fixes it for me.
OnePlus forum is full of complaints on L1 downgraded to L3. To be honest it's not surprising as OP' support after initially advising me on clearing data of Google Play Services and Netflix followed by reboot,. finally tipped to post feedback on OP Forum.
Hi, I just got an email from OnePlus. It works for me now.

Rooting Tab S6 Lite with Android 11 installed

Hi all.. The last device I rooted was an HTC EVO so it has been a while . I've been reading a lot and trying to catch up. I found both of these guides below to root the device. They both use a different approach. So I guess there's more than one way to do this, got it.. I guess I am just looking for some advice as to what is the most current/best way/safest to root the Tab S6 Lite. I have installed all updates provided by Samsung which has brought me to Android 11. I figured I should ask if the fact that I am already running android 11 could throw any monkey wrenches into the process of rooting it. It appears that Andoird 10 is expected within the guides. Can anyone recommend a guide for Android 11?
Thank you in advance.
[2021 noob guide] Unlock and root (with working SafetyNet, Netflix & etc., Lock/Unlock in dev settings)
### Disclaimer ### I am not responsible for damages of any kind. This will probably destroy your device without any warranty help or replacement. If you follow this guide, your warranty will be lost forever. Probably i described something wrong...
forum.xda-developers.com
and
[HOWTO] Unlock and root the Galaxy Tab S6 Lite
Hey guys, I know its the same with the other tablets but i wanna make one just cause its easier for people. How to unlock:: 1. Turn on your device and then go to settings --> scroll down to about tablet --> Software Information then tap the...
forum.xda-developers.com
Perhaps someone could let me know which of the 2 guides above is the one I should follow or perhaps another guide entirely since I have Android 11 loaded (or does this not matter?).
Thanks all
Hi. You can try to use this guide .
repey6 said:
Hi. You can try to use this guide .
Click to expand...
Click to collapse
yes, magisk seems the safest way, specially now that we don't have an official twrp
the catch is.. finding the correct exact firmware to patch the boot.img
proposicion47 said:
yes, magisk seems the safest way, specially now that we don't have an official twrp
the catch is.. finding the correct exact firmware to patch the boot.img
Click to expand...
Click to collapse
For latest version i use Samfirm for Windows
proposicion47 said:
yes, magisk seems the safest way, specially now that we don't have an official twrp
Click to expand...
Click to collapse
I hate to say it, but I don't think using the discontinued TWRP is really too big of a deal. All things considered, it doesn't have too many bugs, and you can work around things like no adb sideload.
I just have a question. Do you think TWRP will ever be revived for this tablet, even an unoffifcial one? I mean, there seems to be a demand. Is it permanently discontinued or...?
Thanks all, will do some more homework
Laithan said:
Thanks all, will do some more homework
Click to expand...
Click to collapse
I've got an S6 Lite on the way - did you come up with a clean sequence?
markfm said:
I've got an S6 Lite on the way - did you come up with a clean sequence?
Click to expand...
Click to collapse
No, I got stage fright at this point and figured the process isn't mature enough for my scenario, or I just didn't get pointed in the right direction. I think that part that concerned me was KNOX... something that didn't exist the last time I rooted an android phone (HTC EVO, yeah that long ago).
Laithan said:
No, I got stage fright at this point and figured the process isn't mature enough for my scenario, or I just didn't get pointed in the right direction. I think that part that concerned me was KNOX... something that didn't exist the last time I rooted an android phone (HTC EVO, yeah that long ago).
Click to expand...
Click to collapse
Thanks for replying. My S6 Lite is due to arrive today. I'll be trying to root my P610 with latest A11 firmware (US 2DUK1), with TWRP, will capture whatever I do.
Awesome! Much appreciated, I suspect there's many out there waiting for an updated guide.
I think twrp is not a good solution,check twice before flashing.
Rooted mine which is lte version,picked up latest from samfirm and patched AP with magisk,added rest of the files in odin from stock.
After flashing done,you must flash vbmeta and boot from stock packed in tar,to avoid error.

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