Database Develop

Downgrade OxygenOS from 3.5.2 to 3.2.6 with Root / Xposed / Debloat

So I downgraded my Oneplus 3 from 3.5.2 to 3.2.6 and this was kind of a painful process, so I decided to share my experience with you.
If you follow this guide you will successfully downgrade from the latest Community Build to the newly released stable.
Note: Just because this worked for me, doesn't mean that it will work for you! Use this guide on your own risk and always use backups!
You'll need:
- Oneplus with OOS 3.5.2 and modified TWRP
- OxygenOS 3.2.6 Full ROM
- Latest official TWRP
- AndroidSDKSlim (needs Oneplus 3 USB drivers installed)
- SuperSU 2.78 SR1
- Xposed Framework (optional)
- Debloat Script (optional)
Downgrade:
Before you start, please create a COMPLETE backup of all your data.
You will factory reset your phone during the process.
1. Copy OOS 3.2.6 Full ROM, SuperSU, Xposed, Debloat Script to your Oneplus
2. Flash modified TWRP if you haven't already
3. Boot into modified TWRP
4. Select Wipe -> Advanced Wipe -> Select all but internal storage -> Swipe to Wipe
5. Install OOS 3.2.6 Full ROM
6. Reboot into system and use the installation wizard to setup your phone (do not setup fingerprints, or any device PIN)
7. Reboot into bootloader
8. Connect your phone to a PC/Notebook
9. Extract AndroidSDKSlim to your Desktop and copy twrp-3.0.2-1-oneplus3.img into \AndroidSDKSlim\android-sdk-windows\platform-tools
10. Run CMD with admin rights and navigate to \AndroidSDKSlim\android-sdk-windows\platform-tools
11. Run "fastboot flash recovery twrp-3.0.2-1-oneplus3.img" to revert to official TWRP recovery
12. Disconnect your phone and boot into recovery
13. Dirty flash OOS 3.2.6 again (this might sound stupid but it's mandatory)
14. Still in recovery, flash SuperSU, Xposed and Debloat Script
15. Wipe Dalvik & Cache
16. Reboot into system and setup your phone

Thanks for your guide !
Can you just please detail how to revert back to a custom ROM like RR or Nuclear when we come from Oxygen OS 3.5.2 community build ?

darkbash said:
Thanks for your guide !
Can you just please detail how to revert back to a custom ROM like RR or Nuclear when we come from Oxygen OS 3.5.2 community build ?
Click to expand...
Click to collapse
You're welcome.
Unfortunately, I can't provide guides for procedures I never went through.
But I asume that you could just flash any Custom ROM after you completely wiped your phone in step 4. So instead of flashing OOS 3.2.6 afterwards, just flash a custom ROM. Be sure that you have all zips you need on your internal storage and a backup to revert back to, if anything goes wrong. Otherwise you will have to use ADB sideload to install a ROM.

Ok, so I have a Modified TWRP installed already. Question is If I want to flash other ROMS after wiping system,dalvik/cache,data etc. Do I have to Flash official TWRP first followed by firmware,ROM, etc?
or firmware first then ROM and lastly official TWRP?
it's quite confusing.

I made a mistake and I installed the modified recovery installed the 3.5.2 rom and before booting I decided to restore my nand backup so I flashed the official twrp recovery and now I can't go to recovery anymore and the phone doesn't boot.
I imagine I have to sideload the modified twrp again but how do I do that? How do I reboot to bootloader ?
This is the only sign of life

gigeaky said:
I made a mistake and I installed the modified recovery installed the 3.5.2 rom and before booting I decided to restore my nand backup so I flashed the official twrp recovery and now I can't go to recovery anymore and the phone doesn't boot.
I imagine I have to sideload the modified twrp again but how do I do that? How do I reboot to bootloader ?
This is the only sign of life
Click to expand...
Click to collapse
Flash modified TWRP, and the recovery will return. then, follow the guide. it happened to me too.

darkbash said:
Thanks for your guide !
Can you just please detail how to revert back to a custom ROM like RR or Nuclear when we come from Oxygen OS 3.5.2 community build ?
Click to expand...
Click to collapse
First flash modified TWRP than install official 3.2.4 than flash CM ROM or custom ROM

uniQ191 said:
So I downgraded my Oneplus 3 from 3.5.2 to 3.2.6 and this was kind of a painful process, so I decided to share my experience with you.
If you follow this guide you will successfully downgrade from the latest Community Build to the newly released stable.
Note: Just because this worked for me, doesn't mean that it will work for you! Use this guide on your own risk and always use backups!
You'll need:
- Oneplus with OOS 3.5.2 and modified TWRP
- OxygenOS 3.2.6 Full ROM
- Latest official TWRP
- AndroidSDKSlim (needs Oneplus 3 USB drivers installed)
- SuperSU 2.78 SR1
- Xposed Framework (optional)
- Debloat Script (optional)
Downgrade:
Before you start, please create a COMPLETE backup of all your data.
You will factory reset your phone during the process.
1. Copy OOS 3.2.6 Full ROM, SuperSU, Xposed, Debloat Script to your Oneplus
2. Flash modified TWRP if you haven't already
3. Boot into modified TWRP
4. Select Wipe -> Advanced Wipe -> Select all but internal storage -> Swipe to Wipe
5. Install OOS 3.2.6 Full ROM
6. Reboot into system and use the installation wizard to setup your phone (do not setup fingerprints, or any device PIN)
7. Reboot into bootloader
8. Connect your phone to a PC/Notebook
9. Extract AndroidSDKSlim to your Desktop and copy twrp-3.0.2-1-oneplus3.img into \AndroidSDKSlim\android-sdk-windows\platform-tools
10. Run CMD with admin rights and navigate to \AndroidSDKSlim\android-sdk-windows\platform-tools
11. Run "fastboot flash recovery twrp-3.0.2-1-oneplus3.img" to revert to official TWRP recovery
12. Disconnect your phone and boot into recovery
13. Dirty flash OOS 3.2.6 again (this might sound stupid but it's mandatory)
14. Still in recovery, flash SuperSU, Xposed and Debloat Script
15. Wipe Dalvik & Cache
16. Reboot into system and setup your phone
Click to expand...
Click to collapse
worked like magic. Thankyou for this education. it didnt work when i followed other folks. Much appreciated.

So it seems I have booted with 3.5.2 and modified recovery. Now my question is: can I reboot in recovery at step 7 and install the original twrp recovery? Or can I use flashify? As I don't have access to a pc

I did ok but cant use adaway do you have a fix for it?
Enviado do meu ONEPLUS A3003 através de Tapatalk

I'm trying to return to 3.2.6 after trying 3.5.2.
However, after flashing and booting 3.2.6, I boot into fastboot mode and the official TWRP refuses to flash. It reports that it's failed and then I'm left with no recovery until I reflash the modified TWRP.
I could try restoring my Nandroid backup of 3.2.6 with the modified TWRP, but I'd prefer to return to the official TWRP before doing this.
Any suggestions?
Edit: Fixed it. I downloaded the official TWRP again and it flashed. The first download must have been corrupted.

I followed a different method and successfully downgraded today to a former nandroid. I was rooted without xposed.
3.2.6 to 3.5.2 dirty flash
- installed modded twrp
- performed backup on 3.2.6
- installed modded 3.5.2 (the only that flashes in twrp)
- installed root SR1
- wiped caches only
- reboot
3.5.2 to 3.2.6 restore
- downloaded 3.2.6
- boot to modded twrp, wipe both caches, data, system
- flashed 3.2.6 stock and root SR1
- restored 3.2.6
- wiped caches
- reboot
- enjoying my LTE again
Without first installing stock, after a restore my phone was boot locking right after the oneplus white logo (capacitive buttons would light up, but it would not boot to red logo). Had to press vol down and power to force it to boot menu to select recovery and get back to twrp
Hope this helps someone, it's a bit easier than swapping twrps and no need to boot up/flash 3.2.x twice.

So if I am on the CB and want to go back to 3.2.6
I can flash 3.2.6 with the modded TWRP
Then flash Official TWRP and boot?

If I have official recovery, no root, and locked bootloader, can I downgrade from 3.5.3 to 3.2.6 without any problems, just by sideloading the zip in ADB? Thankss

popab said:
If I have official recovery, no root, and locked bootloader, can I downgrade from 3.5.3 to 3.2.6 without any problems, just by sideloading the zip in ADB? Thankss
Click to expand...
Click to collapse
i would also like to know this please

bigup7 said:
i would also like to know this please
Click to expand...
Click to collapse
I did it and it does work perfectly. Just make sure to wipe data from recovery after flashing.

I was on Comunity Build v.3.5.4. I want it back FreeDom v.1.6.
I did:
1. Flash Twrp-3.0.2-19-oneplus3.img.zip. Somebody sugested original twrp 3.0.2.1 from twrp site. For me did NOT work. Phone not booting in recovery with 3021.
2. Advanced wipe. Wipe dalvik cache/cache/system/data
3. Flash Freedom v.1.6. Clean Flash it's safer & better.
Done. System works. Recovery works.

null0seven said:
I was on Comunity Build v.3.5.4. I want it back FreeDom v.1.6.
I did:
1. Flash Twrp-3.0.2-19-oneplus3.img.zip. Somebody sugested original twrp 3.0.2.1 from twrp site. For me did NOT work. Phone not booting in recovery with 3021.
2. Advanced wipe. Wipe dalvik cache/cache/system/data
3. Flash Freedom v.1.6. Clean Flash it's safer & better.
Done. System works. Recovery works.
Click to expand...
Click to collapse
I am on CB Freddom os
I want to go back either to stock or to op3lite.
I cant reboot to recovery.
But adb works yet.
What to do plz suggest.
Sent from my ONEPLUS A3003 using Tapatalk

1. If system don't boot. Reboot to fastboot.
- Flash recovery.img. If PC don't see youre phone option 2.
2. If system boots, open phone like normal.
- Extract recovery img. Put it on the TWRP file on phone sd card.
- Download Flashify from play. Open it, flash img of recovery. Open recovery to chech if it works.
Try with both recovery (3.0.2.0 or modified 3.0.2.-19). One of those will work.

Im getting system partition has unexpected contents after OTA update after installing step 5 ????

[ROM] OxygenOS Open Beta 9 (Nougat) Update and Installation!!

Hi everyone,
We appreciate everyone’s feedback from the OxygenOS Open Beta 8. With your help, we have optimized and improved several key areas.
The changes include:
Added Expanded Screenshots
Shelf Design Optimizations
General UI Optimizations
DPI Optimizations
Battery Performance Optimizations
Stability and Performance Optimizations
General bug fixes
Please visit the download page here:
http://downloads.oneplus.net/oneplus-3/oneplus_3_oxygenos_openbeta_9/
If you’ve already flashed a previous Open Beta build, you will receive this update via OTA. If you haven’t, you will need to flash this build by ADB sideload. Your data may transfer, but there is always a possibility of losing personal data, so be sure to backup all of your important data before flashing this build. As stated before, once you flash the Open Beta, you’ll continue getting Open Beta OTAs.
Please follow the link below for the UI/UX experience survey. We’d really appreciate a few minutes of your time, as it will help us make OxygenOS even better. One last thing: this is a limited program, so we may disable this download link once we receive enough feedback.
- Feedback on UI/UX: https://goo.gl/forms/hEqMPq9U9QNrxvhc2
Note: If you flash this Open Beta build, you’ll receive Open Beta OTAs (but not official OTAs). You’ll need to manually (clean) flash back to our official builds to continue receiving official OTAs. Rolling back to official OxygenOS versions require wiping data and cache.
Thank you for your patience and as always, we look forward to hearing your continued feedback in the bug reporting forum here: https://forums.oneplus.net/feedback/.
Thank you for helping us build a better OxygenOS.
Never settle.

Installation Methods
Before we start:This method is only for the OnePlus 3
Follow the steps correctly otherwise you may brick your device. I am not responsible for any damage to your device, please ensure that your device is at least 60% charged to prevent the accidental shutdown in-between the update process.
Downloads:
Beta 9 Full Zip Official Download
Compatible Stock Recovery
********************* For Stock Non Rooted Users with Stock Recovery *****************
1. Download the appropriate OTA/Full Zip from above link and place it in the root folder.
2. Navigate to Settings > System Updates > Settings Icon > Local Upgrade & Select the OTA File
3. Once selected system would prompt upgrade now
4. Select upgrade now and system would reboot in stock recovery and flash the OTA
5. The installer would itself flash the OTA and reboot the device.
The Device will reboot and your OnePlus 3 is now running on the latest OxygenOS firmware & OS.
PS: The first boot may take some time so keep calm and wait for it to boot.
* After flash is successful go back to recovery and a wipe of cache is recommended.
* If in any case flash is unsuccessful the system would prompt you to download the full 1.4GB zip. So download that and follow the same process as above.
************************ For Rooted Users with TWRP Recovery ************************
Download Beta 9 Full Zip
1. Download the Beta 9 Full Zip on your phone internal memory.
2. Download the Latest SuperSU SR5
4. Reboot To TWRP (Modified 28) & Take a Nandroid of your existing ROM
5. Go to Wipe > Advance Wipe > Select Dalvik & Cache & Swipe to Wipe
6. Install Menu > Select Beta 9 Rom Zip > Swipe to Flash
7. Wipe Dalvik & Cache
8. Flash SuperSU to maintain root
9. Reboot System and Enjoy the Beta 9 Update
* Do not flash Xposed as not compatible with 7.0 builds yet
If you come from a custom rom, i recommend a clean flash and make sure you use the modified TWRP 3.0.2-1.28 as the official one is incompatible with the CB firmware yet.
PS: The first boot may take some time so keep calm and wait for it to boot and the system would boot twice due to flash of supersu so keep calm
PS: Rooted users may either flash the full Beta 9 Zip or they need to flash the previous full zip beta 8 first to overwrite system partition followed by the relevant Beta 9 OTA zip for a successful flash else just the OTA flash would fail with error 7 in TWRP

I was on TWRP (modded) and rooted. Installed the update (OTA) and now my phone just reboots to TWRP no matter what I do (I have even made a factory reset and reinstalled Beta8)

salomaoa said:
I was on TWRP (modded) and rooted. Installed the update (OTA) and now my phone just reboots to TWRP no matter what I do (I have even made a factory reset and reinstalled Beta8)
Click to expand...
Click to collapse
You can't install the ota update on TWRP recovery. You need the stock one.
Try reflashing TWRP recovery via fastboot and then flash open beta 9(not the ota)

salomaoa said:
I was on TWRP (modded) and rooted. Installed the update (OTA) and now my phone just reboots to TWRP no matter what I do (I have even made a factory reset and reinstalled Beta8)
Click to expand...
Click to collapse
Download the recovery at the bottom of the page.
http://downloads.oneplus.net/oneplus-3/oneplus_3_oxygenos_openbeta_9/
Copy it onto your phone with the this Open Beta 9 package.
Start up TWRP, format /dalvik, /cache, /system, /data.
Flash the Open Beta and clean the caches if asked.
Flash the original recovery from TWRP as recovery image, and restart your phone afterwards.
Your phone may boot into the new recovery, then show "Update failed", then do another restart, but after that mine was working.

Does all partitions support f2fs?

smk513 said:
Does all partitions support f2fs?
Click to expand...
Click to collapse
AFAIK, only data partition is f2fs

Sun90 said:
AFAIK, only data partition is f2fs
Click to expand...
Click to collapse
I wonder if the new version is possible...
Thank you for your response.

flashing with twrp will result in recovery booting loop. after downloading ota simply reboot to recovery, download oneolusrecovery from ob9 page. transfer it to phone. select install image in twrp, select reocover, flash as recovery and reboot to recovery. itll show updating.. takes about 20mins

Will modified twrp also not work?

Really? The modified twrp doesnt work? I,ve read the thread in oneplus forum and some are saying it worked for them. :/
Edit: anyways, im on modified twrp, rooted, beta 8, can i dirty flash beta 9?

jfodra said:
Really? The modified twrp doesnt work? I,ve read the thread in oneplus forum and some are saying it worked for them. :/
Click to expand...
Click to collapse
It works. I flashed the full zip with it.
Edit:
Yes you can dirty flash. Everything is working as expected.

jfodra said:
Really? The modified twrp doesnt work? I,ve read the thread in oneplus forum and some are saying it worked for them. :/
Click to expand...
Click to collapse
It will work with full zips !! It won't work it ota updates
As simple as this

Dirty flashed over OB8, everything working fine!
Edit:
Using Modified TWRP

Dirty flashed over OB8, so far no issue's.
Did flash TWRP img after update in TWRP (just to be sure), first boot took a while tho.
Anyone tried supersu?

I have this from yesterday. I was on 3.2.8 from OnePlus site, dated 12.05.16.
Clean flash with TWRP 3.0.2-1.28, thanks to eng_stk. Flash the rom & SuperSU SR5 (if you want root). Refalsh recovery 3.0.2-1.28. Reboot to recovery. If it not works reflash recovery.
Then reboot to system.
I did not flash any mods. All it's ok.

t181 said:
It works. I flashed the full zip with it.
Edit:
Yes you can dirty flash. Everything is working as expected.
Click to expand...
Click to collapse
Oh okay thanks. So is it the same as before? Flash beta 9, flash twrp again, then flash sr5 then reboot?
Edit: Nvrmind, flashed it already and d*mn. It does feel smoother than beta 8. ???

Can it be flashed over modded Open Beta 8 ?

M3ntoR said:
Can it be flashed over modded Open Beta 8 ?
Click to expand...
Click to collapse
Yep. Just make sure to have the full update and not the OTA one. Also, just in case make sure you have the TWRP img and super-su on your phone's memory to be able to flash them again

Any mirror for this? Full zip is downloading really slow and I've already stucked on twrp after OTA Need to dirty flash the full zip, but it is going to dowload around Christmas with that speed...

OP3T Stuck in TWRP after flashing LineageOS

Hello out there,
my problem is a bit annoying. Everything is fine if I use my OP3T with Oxygen (4.0.3) and TWRP (3.0.3-1). But I want to use LineageOS with TWRP and cant, because my TWRP isnt working after flashing lineage.
"Normal"-Setup:
- TWRP 3.0.3-1
- Oxygen 4.0.2 or 4.0.3 (doesn't matter)
- supersu 2.79
- Encrypted Device
"Lineage"-Setup:
- TWRP 3.0.3-1
- lineageOS (lineage-14.1-20170214-nightly-oneplus3-signed.zip OR lineage-14.1-20170208-nightly-oneplus3-signed.zip - tried both, doesnt matter)
- supersu 2.79
- openGApps for 7.1 nano
- Encrypted Device
My Problem is, that I can boot up lineage and use it, but if I reboot into my TWRP to flash something or make some Backups, it asks for my encryption-passphrase, it says it is okay and boots into the twrp main-windows. After that I can't touch anything (stuck in mainmenu) and after a few seconds it results into a black screen (plus white LED) and I am forced to reboot the device. After that reboot I have to reconfigure lineage (seems to loose data).
Does anyone have an idea how to fix this annoying "bug"?
Thank you very much!
Atomique
EDIT: I found that Thread after searching for a issue like that in the lineageOS official Thread - I will try this and report! - Thank you! https://forum.xda-developers.com/on.../recovery-official-twrp-oneplus-3-3t-t3543391

I had the exact same problem when I hab LineageOS installed! It would always lose all its data. After flashing and reflashing a hundred times, I ended up reverting my OP3T back to stock using a OnePlus forum guide (I'm a new user, so I can't post the link). I am now back to OOS 4.0.3 but can't even get SuperSU to work. Whenever I flash it (with or without the dm-verity fix) the phone is stuck booting forever.
I found the post you linked to aswell but haven't tried flashing LineageOS using the new TWRP. But I can tell that the new version doesn't help rooting OOS...
Did you have any luck flashing LineageOS by now?
Edit: With the newest Lineage Version I always get an error when trying to flash it. Do you have the same problem? The nightly from two weeks ago seems to work better.

Use latest TWRP 3.0.4.1

nitinvaid said:
Use latest TWRP 3.0.4.1
Click to expand...
Click to collapse
That's what I'm doing... Could the dm-verity be a problem? There are two versions, one with opt and one with force in the name.

Thank you for your replies! The link (TWRP 3.0.4-1) worked like a charme!
@Tafelbomber: I would recommend you to start from scratch. But please be warned: you will loose your data! Make a backup first!
1. Delete everything with fastboot -w
2. Flash the recovery noted in my first post with fastboot flash recovery <twrp-filename.img>
3. Optional: Restart into the TWRP and flash the OOS 4.0.3 to make sure that you have a clean OS installed befor flashing lineage
4. Flash lineage OS + additional ZIPs (like supersu, betterbatterystats, Gapps etc)
5. Clean Dalvik and Cache!
6. Reboot and have fun. --> Sometimes you get problems with the encryption chain (Red Error --> in my case the fastboot -w did it for me)
Good luck - I will close this thread - thanks again for your help!
Atomique
EDIT: I want to close this thread, but I don't know how.

absolute cluster**** after attempting to move from 4.5.0 to 5.0

So... was tired of some miscellaneous issues with 4.5.0 (rooted w/ Magisk, TWRP recovery) and decided to finally jump to 5.0. Failed initially in TWRP (was using stock 3.1.xx), moved to the OOS internal upgrade option, and actually managed to boot into 5.0 (albeit stock recovery and no root) after that succeeded.
Powered off, connected to PC, fastboot flashed TWRP 3.1.1 blu spark, rebooted into recovery, reflashed blue spark img, flashed OnePlus3TOxygen_28_OTA_060_all_1711160447.zip (went fine AFAIK, "script succeeded, 1.0000"). Cleared Dalvik/cache, flashed SuperSU v2.82... and this is where things got weird. First, flashing SuperSU failed once at the point of compressing the ramdisk. rebooted into TWRP, tried again, and it finished without error messages. Wiped Dalvik/cache once more and rebooted. This time, I got a permanent boot where my OP3T appeared to freeze at the first OP logo on a black background and would go no further even after 10+ minutes. Swapped out my SuperSU zip with a download straight from their website, same frozen boot. Redownloaded OTA_060_all, same thing. Wiped dalvik/cache/system before each attempt, no luck.
Gave up, fastboot -w, reflashed TWRP blu spark, and now even just drying to flash the plain OTA_060 zip results in a "no OS installed" when I try to reboot. When I try to flash either Magisk v15 or SuperSU 2.82, TWRP freezes entirely in the first steps, crashes to a white notification icon, and requires a long power button hold to reboot. I am lost at this point. AFAIK, my OP3T is basically a blank, wiped slate, and I've never experienced full-on TWRP freezes while flashing before blu spark.
In the meantime, I've installed OTA_057 (4.5.1) instead, thankfully without a bootloop, but fully wiped any suggestions?

I've jumped from Nougat to Oreo too. These are my steps: while on nougat open the TWRP recovery (stock TWRP); MAKE A COMPLETE BACKUP; updated it to the latest version (3.2.1.0.- if you have it installed then there's no need for this step); complete wipe; install the OTA using USB OTG; boot to system; run the first setup; (now TWRP might got overwritten just reboot to recovery, if it reboots to TWRP great, move on, if not then reboot to system and install TWRP using ADB); reboot to TWRP recovery; flash Magisk 15 (or SuperSU, but I don't use it so I can't say if it works); flash kernel if you want; reboot to system; check if Magisk/SuperSU works and that's it. At this point I've made another complete backup just in case I skrew up something in the future. Hope I helped! Good luck!

Are you using supersu 2.82 SR5.
I had same problem with my 3T going from nougat to oreo.

Tagtag123 said:
Are you using supersu 2.82 SR5.
I had same problem with my 3T going from nougat to oreo.
Click to expand...
Click to collapse
Yep, I believe that's exactly the version I tried I eventually just gave up after doing the complete device wipe through fastboot commands, am now running 5.0 with no problems but have the stock recovery and am not rooted :/ Now I just need to make a backup and then I can mess around and try and find a root method that doesn't basically soft brick my phone...

Even I am running OOS 5.0
The way I rooted is:
Flashed oos 5.0 using TWRP (https://forum.xda-developers.com/devdb/project/dl/?id=27381&task=get)
Boot normally
Reboot to TWRP, flash TWRP using fastboot if you find stock recovery. Then boot to TWRP.
After you in the TWRP recovery, flash superSU 2.82 SR5
Then flash suhide (it helps you hide root from apps which are a bit finicky about root).
This works for me.
SuperSU v2.82-SR5 flashable ZIP:
http://download.chainfire.eu/1220/SuperSU/SR5-SuperSU-v2.82-SR5-20171001224502.zip
suhide v1.09 flashable ZIP:
http://download.chainfire.eu/1219/suhide/UPDATE-suhide-v1.09-20171001222116.zip

I just followed these steps coming from rooted 4.5.1 and worked perfectly.
https://forums.oneplus.net/threads/guide-how-to-install-oos-5-0-over-rooted-4-5-1.684519/
Unleashed by my rooted OP3T in 8.0

No sim card after twrp restore

I have a oneplus 3t and am on OOS 4.0.3 and decided to upgrade to OOS 5.0. I downloaded the ROM, took a backup and then clean wiped my phone. Then I tried installing the ROM but it failed. So I decided to restore my backup from USB OTG. While restore failed and it showed error 255 while restoring data, so I wiped again and then restored everything except data. The phone rebooted and everything is fine except the phone is not detecting my sim card. I have tried restoring again and rebooting but it didn't work. I am using twrp 3.1.1
Please give a solution or tell me which ROM version to flash to solve this problem.

Just follow this guide to get back to factory default. And then try OTA update with the default recovery instead of TWRP.
https://www.google.se/amp/s/forum.x...ck-unbrick-tutorial-oneplus-3t-t3515306/page1

You need a special TWRP in order to upgrade to Android Oreo. Just google for Oneplus3 Oreo TWRP and theres a OnePlus-Forum Thread where you can download the TWRP that is needed for the Oreo Upgrade. Your Backup should work without Problems after you installed Oreo

just install bluSpark TWRP v8.61 from
https://forum.xda-developers.com/devdb/project/dl/?id=27655
and download official 5.0.1 ROM zip file from oneplus official site.
then you can proceed. You can use Magisk 15.3 after ROM installation for root access.
Make sure to reboot TWRP once after wiping everything from TWRP otherwise you may lose TWRP where stock recovery may take place.