Please help/ 3T boot loop on oneplus logo - OnePlus 3T Questions & Answers

I was on miui 9 and I wiped everything and made data partition EXT4. My intention was to install nitrogen OS , so I installed firmware (OB22) and installed the ROM and gapps. But when i restarted i was boot loop on splash screen. Phone boots up and within 2 seconds reboots again in a loop. I have access to TWRP and bootloader. Please help me to restore my 3T. Your help is much much appreciated.

Flash the latest stock Oos.5.0.1 and check if the problem remains.
Sent from my ONEPLUS A3003 using Tapatalk

RASTAVIPER said:
Flash the latest stock Oos.5.0.1 and check if the problem remains.
Sent from my ONEPLUS A3003 using Tapatalk
Click to expand...
Click to collapse
Thanks for the help. Booted the device with OB22.

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please help!

I accidentaly flashed oos 4.0.2 for oneplus 3 on a friends 3t. Zips are now missing but storage still shows 49.6 gb out of 53.6 gb. Should i just flash oos 4.0.2 for oneplus 3t and things will be fine? Please answer
Edit: its on tesla rom. I tried booting to twrp to flash the oos for op3t but twrp wont boot. And files in the internal storage keeps on getting deleted. Any recommendations on recovering the device?
Follow this guide to unbrick the phone. Do know that this will wipe internal storage.
https://forum.xda-developers.com/showthread.php?t=3515306
Sent from my ONEPLUS A3000 using Tapatalk
Can you get into fastboot? If so, wipe all the partitions from there and flash.
If not, then you're probably going to have to use the unbrick guide.
Thanks for the answers, its fixed now

Can't update Oxygen OS to OREO or other

Hello All, This is my first post.. Hope I get the help I need .
So the problem I facing was my wifi ic of Oneplus 3t was getting extreme hot (bluetooth never worked , kept searching but in vain ) and due to this it was draining my battery quite soon. I finally decided to get my wifi ic replaced which is pasted on motherboard. After getting it replaced my wifi was gone and bluetooth returned to life but the biggest issue was solved which was the heat issue.
I had installed custom rom before replacing ic to check whether they can help me cool down my phone.
So later when ic was replaced, I flashed the stock rom with MSMDownloadTool and got success, but after that whenever I tried to update to latest 5.0.4 uptill today, it installed fine but when restarted, it came to ONEPLUS round dots splash screen and after few seconds the dots would stop rotating and my phone would restart. After a few restarts it would come to the same stage and then comes to a screen
"encryption unsuccessful "... Now after a zillion tries I tried updating one by one which is in order
3.2.6
3.5.3
3.5.4
till here right now m on success ... All I want to know is what this issue is .. how can i resolve it ???
Here it goes the update.... as soon I updated 4.0.2 , the rom with NOUGAT. it stucks on bootloop
yudi.15 said:
Hello All, This is my first post.. Hope I get the help I need .
So the problem I facing was my wifi ic of Oneplus 3t was getting extreme hot (bluetooth never worked , kept searching but in vain ) and due to this it was draining my battery quite soon. I finally decided to get my wifi ic replaced which is pasted on motherboard. After getting it replaced my wifi was gone and bluetooth returned to life but the biggest issue was solved which was the heat issue.
I had installed custom rom before replacing ic to check whether they can help me cool down my phone.
So later when ic was replaced, I flashed the stock rom with MSMDownloadTool and got success, but after that whenever I tried to update to latest 5.0.4 uptill today, it installed fine but when restarted, it came to ONEPLUS round dots splash screen and after few seconds the dots would stop rotating and my phone would restart. After a few restarts it would come to the same stage and then comes to a screen
"encryption unsuccessful "... Now after a zillion tries I tried updating one by one which is in order
3.2.6
3.5.3
3.5.4
till here right now m on success ... All I want to know is what this issue is .. how can i resolve it ???
Click to expand...
Click to collapse
Try directly clean flashing OOS 5.0.5 from TWRP 3.2.3-0
Sent from my OnePlus3T using XDA Labs
Siddk007 said:
Try directly clean flashing OOS 5.0.5 from TWRP 3.2.3-0
Sent from my OnePlus3T using XDA Labs
Click to expand...
Click to collapse
Ok I am about to start with your mentioned method in this post
https://forum.xda-developers.com/oneplus-3t/how-to/official-oxygenos-5-0-1-android-8-0-t3728119
Will update soon... Fingers crossed
Still on same stage the circle stops spinning and phone restarts
I dont get it , its booting 3.5.3 and 3.5.4 correctly just all of the later updates give this error... is it because my wifi is not in working condition???
Because for some extra information I can flash any 8.1 based rom without any problems... checked Bootleggers, RR and Havoc...
Please guide me
yudi.15 said:
Still on same stage the circle stops spinning and phone restarts
I dont get it , its booting 3.5.3 and 3.5.4 correctly just all of the later updates give this error... is it because my wifi is not in working condition???
Because for some extra information I can flash any 8.1 based rom without any problems... checked Bootleggers, RR and Havoc...
Please guide me
Click to expand...
Click to collapse
It sounds to me that this may be related to encryption of the data partition.
Are you flashing the full OOS ROM from https://downloads.oneplus.com ?
Are you using the latest TWRP from https://dl.twrp.me/oneplus3/ ?
If you aren't, then try using them.
If you still have problems then I would format the data partition in TWRP to avoid any encryption issues, then flash OOS and immediately flash the patched boot image from https://forum.xda-developers.com/on...y-force-encryption-op3t-t3688748/post74155053 to prevent TWRP being replaced by the stock recovery.
Note that formatting the data partition will wipe your internal storage and you'll lose all files on your phone.
Sent from my OnePlus3T using XDA Labs
BillGoss said:
It sounds to me that this may be related to encryption of the data partition.
Are you flashing the full OOS ROM from https://downloads.oneplus.com ?
Are you using the latest TWRP from https://dl.twrp.me/oneplus3/ ?
If you aren't, then try using them.
If you still have problems then I would format the data partition in TWRP to avoid any encryption issues, then flash OOS and immediately flash the patched boot image from https://forum.xda-developers.com/on...y-force-encryption-op3t-t3688748/post74155053 to prevent TWRP being replaced by the stock recovery.
Note that formatting the data partition will wipe your internal storage and you'll lose all files on your phone.
Sent from my OnePlus3T using XDA Labs
Click to expand...
Click to collapse
Yes I flashed full rom... But the problem is just two roms go successful on my device. Rest of the roms no matter if I update them or flash fully they will get stuck on oneplus logo and then restart...
BillGoss said:
It sounds to me that this may be related to encryption of the data partition.
Are you flashing the full OOS ROM from https://downloads.oneplus.com ?
Are you using the latest TWRP from https://dl.twrp.me/oneplus3/ ?
If you aren't, then try using them.
If you still have problems then I would format the data partition in TWRP to avoid any encryption issues, then flash OOS and immediately flash the patched boot image from https://forum.xda-developers.com/on...y-force-encryption-op3t-t3688748/post74155053 to prevent TWRP being replaced by the stock recovery.
Note that formatting the data partition will wipe your internal storage and you'll lose all files on your phone.
Sent from my OnePlus3T using XDA Labs
Click to expand...
Click to collapse
Tried to format data drive and install os and without any delay flashed the patched boot image as well but stuck on 1+ logo... Not even going to splash screen
yudi.15 said:
Tried to format data drive and install os and without any delay flashed the patched boot image as well but stuck on 1+ logo... Not even going to splash screen
Click to expand...
Click to collapse
Give it a few minutes - it may be re-encrypting the data.
Sent from my OnePlus3T using XDA Labs

Flash oxygen os 5.0.5 on OP3T with magisk using TWRP ??

Hello friends..(I am a noob )
Actually I was running on Oreo 8.1 lineage os 15.1 but then I wanted to flash oxygen os 5.0.5 stable ROM I searched for the thread on XDA and then followed it..
Here is what happened:-
1---First I clean flashed the ROM (oxygen os) using TWRP 3.2.3-0 successfully..
But then when I tried flashing magisk 17.1 my phone RESTARTED in between of magisk installation process...??
2--Then I tried it using Blu spark recovery
The same issue occured..
3-- then I tried flashing firmware 1st then OOS
Same issue occurred now my phone vibrated vigorously..
4--when I tried to just flash OOS
It again restarted...
5--Now I want to know how can I flash oxygen os with magisk using TWRP recovery ????
I had tried this process using magisk 14.3, 16,17,17.1
But none worked
Plz help me..
I always use bluespark recovery, I have flashed all Oxygen updates and magisk and never had such problems.
The restart is happening suddenly,in the middle of the flash or after it has finished?
Sent from my ONEPLUS A3003 using Tapatalk
RASTAVIPER said:
I always use bluespark recovery, I have flashed all Oxygen updates and magisk and never had such problems.
The restart is happening suddenly,in the middle of the flash or after it has finished?
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Click to collapse
Happening in between..??
Mayank7 said:
Happening in between..??
Click to expand...
Click to collapse
Can u pls elaborate..
How did u flash OOS using Blu spark ??
2 days ago I just did the same (flash firmware, OOS 5.0.5 stable then magisk using TWRP 3.2.3)
At first I flashed magisk v16, then updated to v17, and here's where I encountered a problem, it keeps boot looping at the boot animation
But I solved it by just wiping data and repeat flashing the ROM & everything else
Just make sure none of the files are corrupt I guess, and wipe clean everything including internal storage (after backing up)
deetailed said:
2 days ago I just did the same (flash firmware, OOS 5.0.5 stable then magisk using TWRP 3.2.3)
At first I flashed magisk v16, then updated to v17, and here's where I encountered a problem, it keeps boot looping at the boot animation
But I solved it by just wiping data and repeat flashing the ROM & everything else
Just make sure none of the files are corrupt I guess, and wipe clean everything including internal storage (after backing up)
Click to expand...
Click to collapse
There is no reason to wipe internal files during flashing of new roms and Magisk latest version is 17.1, not 17 which was causing bootloops.
So your post is totally wrong and better next time be careful of what you are writing.
Sent from my ONEPLUS A3003 using Tapatalk
RASTAVIPER said:
There is no reason to wipe internal files during flashing of new roms and Magisk latest version is 17.1, not 17 which was causing bootloops.
So your post is totally wrong and better next time be careful of what you are writing.
Sent from my ONEPLUS A3003 using Tapatalk
Click to expand...
Click to collapse
OP said something about a clean flash, so he probably already cleared his data. So it shouldn't be a big deal if he does it again.
When changing from LOS to OOS you should always clear data anyway.
I think you might not be wiping everything before flashing. If you have a computer, I would follow this steps (assuming that you already backed up all your photos, documents, etc):
1- Download the factory image to your PC
2- Wipe EVERYTHING in twrp (through the advanced option)
3- Reboot to recovery
4- Connect your phone to the PC and send the factory image zip to the phone just like with any other usb drive.
5- Flash the file through twrp and inmeadiately flash latest magisk
6- Reboot to recovery and do a factory reset through twrp.
7- Reboot and be happy.
One or more of those steps might be unnecesary, but I always do it like that and it always works...
Have fun!

Help getting from LineageOS 14.1 to OxagenOS 5.08 (Something wrong with flash mem?)

Hi,
maybe someone here can help me or point me in the right direction for a guide. That would be much appreciated!
I have a Oneplus 3T (A3003) that I flashed to LineageOS 14.1 with Magisk-Root a while ago.
I have been stuck on 14.1-20171005-NIGHTLY-oneplus3 for a while now, because since then, whenever I tried to do a nandroid backup from within TWRP, the backup failed because of some kind of error on the data partition (I believe). I haven't flashed a new version since then and haven't come around to it until now, because everything ran very smoothly. :silly:
Since I would like to switch to a more modern ROM (I was thinking of going back to Oxygen OS (5.08)) I started playing around with it yesterday and noticed that TWRP (I think 3.2.0) would not start anymore. It will always get stuck on the logo screen.
I then tried to flash a new version (3.2.3.1) through the Official TWRP app. It still got stuck on the logo screen and I tried flashing 3.2.3.0 after reading about problems with 3.2.3.1 but the results were the same.
Can you please tell me how to get TWRP working again and how to flash OxygenOS 5.08 on my 3T or point me to the neccessary guides?
Thank you.
Data about the phone:
ONEPLUS A3003
Android Verson 7.1.2
LineageOS Version 14.1-20171005-NIGHTLY-oneplus3
Security Oct. 5th 2017
Baseband MPSS.TH.2.0.c1.9-00102-M8996FAAANAZM-1.89286.1.99649.1
Kernel 3.18.31-lineageos-g0036392...
As OOS implies enforced encryption of data partition, going to an from it can be a bit tricky. Simplest way is by wiping using Qualcomm factory restore tool and then just OTA upgrade or flash latest OOS zip.
Skickat från min ONEPLUS A3003 via Tapatalk
@r_wraith, I'm thinking that your data may be formatted f2fs and be encrypted but no on-boot password, and have a lot of data in your user data. This could cause a long start time in TWRP.
So try waiingt for about 5 minutes when you boot into TWRP. It may end up getting past the logo screen.
Sent from my OnePlus3T using XDA Labs
BillGoss said:
@r_wraith, I'm thinking that your data may be formatted f2fs and be encrypted but no on-boot password, and have a lot of data in your user data. This could cause a long start time in TWRP.
So try waiingt for about 5 minutes when you boot into TWRP. It may end up getting past the logo screen.
Click to expand...
Click to collapse
That worked, thank you. Yes, my data partition is/was encrypted.
Since TWRP seems to be working again, do I need to flash some kindof firmware upgrade before I flash Oxygen OS or is this included in the OxygenOS-Image and only needed for flashing ANdroid 8 Custom ROMS?
r_wraith said:
Since TWRP seems to be working again, do I need to flash some kindof firmware upgrade before I flash Oxygen OS or is this included in the OxygenOS-Image and only needed for flashing ANdroid 8 Custom ROMS?
Click to expand...
Click to collapse
The OOS zip includes the firmware. Custom ROMs don't because they use the OOS firmware. The firmware is stored in separate partitions so it isn't affected by wiping the system and data positions.
Since you're coming from Los 14.1 you'll need to do the following in TWRP:
- take a backup of your current system
- do a factory reset to clear the data partition without losing the files stored on internal storage
- flash the OOS zip file
- flash Magisk 18.0 which will root the phone as well as prevent TWRP from being replaced by the stock OOS recovery
Sent from my OnePlus3T using XDA Labs

I Need Stock Recovery

Hi everyone,
I need a link for th OP3T stock recovery. All old threads point to OnePlus website which does not provide the stock recovery anymore.
Currently on TWRP and want to return the phone to full stock.
TIA
weapons777 said:
Hi everyone,
I need a link for th OP3T stock recovery. All old threads point to OnePlus website which does not provide the stock recovery anymore.
Currently on TWRP and want to return the phone to full stock.
TIA
Click to expand...
Click to collapse
If you install OOS and nothing else and reboot your phone, it will automatically install stock recovery and encrypt your phone (of its not encrypted).
So, you don't need to manually install stock recovery.
Sent from my OnePlus 3T using XDA Labs
BillGoss said:
If you install OOS and nothing else and reboot your phone, it will automatically install stock recovery and encrypt your phone (of its not encrypted).
So, you don't need to manually install stock recovery.
Sent from my OnePlus 3T using XDA Labs
Click to expand...
Click to collapse
Hi, thank you very much for your reply.
I have installed the latest OOS 9.0.5 downloaded from OnePlus support site. Everything is working fine but TWRP remains installed as the default recovery. I want to go completely back to stock and get rid of the DM-VERITY messages at boot.
weapons777 said:
Hi, thank you very much for your reply.
I have installed the latest OOS 9.0.5 downloaded from OnePlus support site. Everything is working fine but TWRP remains installed as the default recovery. I want to go completely back to stock and get rid of the DM-VERITY messages at boot.
Click to expand...
Click to collapse
You're not using Magisk or a custom kernel or a patched boot image are you? Because any of those will prevent the stock recovery from being installed.
Sent from my OnePlus 3T using XDA Labs
BillGoss said:
You're not using Magisk or a custom kernel or a patched boot image are you? Because any of those will prevent the stock recovery from being installed.
Sent from my OnePlus 3T using XDA Labs
Click to expand...
Click to collapse
I wiped and formatted everything from TWRP and then installed the OOS zip. Phone is back to stock except for the recovery.
weapons777 said:
I wiped and formatted everything from TWRP and then installed the OOS zip. Phone is back to stock except for the recovery.
Click to expand...
Click to collapse
Very weird.
Here's a copy of the recovery https://www.dropbox.com/s/kvdtwt8gdxiu24s/recovery_op3t.img
Md5: bd21e3036f11584e94a68f7d85977653
Sent from my OnePlus 3T using XDA Labs
BillGoss said:
Very weird.
Here's a copy of the recovery https://www.dropbox.com/s/kvdtwt8gdxiu24s/recovery_op3t.img
Md5: bd21e3036f11584e94a68f7d85977653
Sent from my OnePlus 3T using XDA Labs
Click to expand...
Click to collapse
Great! Thank you very much. I am finally back to stock recovery with the file you provided.
Cheers! :good:

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