[Q&A]OnePlus 3T Noob -Friendly Q&A Help Thread - Ask Your Questions Here!

[Sudhangshu]

Hey there.
I'm using oneplus 3t on latest oos running pie and I'm noticing quite a battery drain than normal. So if anyone getting better battery backup then kindly share any setting so that I can change my settings for better battery life. I'm also attaching my sot from current setting.

 

[shimatta8]

Hi, how do I update to android 9 pie from RR 7.1 ROM.

Do I need to update the firmware? And how do I detect my bootloader and firmware version. Thanks

 

[Primokorn]

Hi, how do I update to android 9 pie from RR 7.1 ROM.

Do I need to update the firmware? And how do I detect my bootloader and firmware version. Thanks

Clean flash of course and yes you have to update the firmware: https://forum.xda-developers.com/oneplus-3t/how-to/guide-cope-9-0-3-5-0-8-firmware-barrier-t3941164

 

[nadastry]

I will install a 8.1 ROM on a OP3T as test device.
I have to update the modem firmware.
Should I install the modded firmware for 9.0.6 or should I avoid that newest version and go for a older firmware version?

 

[nvertigo67]

I will install a 8.1 ROM on a OP3T as test device.
I have to update the modem firmware.
Should I install the modded firmware for 9.0.6 or should I avoid that newest version and go for a older firmware version?

Use the fw taken from the same oos build the "8.1 ROM" has taken it's blobs from.

 

[allspi]

hello.
ive freshy installed los 16 + gapps + magisk
basic integrity true but cts failed.
no custom kernel
no modes/xposed
latest firmware
selinux enforcing
What to do now?

 

[BillGoss]

hello.
ive freshy installed los 16 + gapps + magisk
basic integrity true but cts failed.
no custom kernel
no modes/xposed
latest firmware
selinux enforcing
What to do now?

You need to use either:
- the zip file from https://forum.xda-developers.com/on...velopment/rom-nlos-16-0-t3879405/post78433987 or
- the Magisk module from https://forum.xda-developers.com/apps/magisk/module-magiskhide-props-config-t3789228/post76494810

To pass SafetyNet your phone's fingerprint and security patch level have to be from an official OOS version

Sent from my OnePlus 3T using XDA Labs

 

[allspi]

You need to use either:
- the zip file from https://forum.xda-developers.com/on...velopment/rom-nlos-16-0-t3879405/post78433987 or
- the Magisk module from https://forum.xda-developers.com/apps/magisk/module-magiskhide-props-config-t3789228/post76494810 or

To pass SafetyNet your phone's fingerprint and security patch level have to be from an official OOS version

Thanks a lot. I have used zips from nlos topic. Its hard to be up to date these days. I miss Gingerbread times :]

 

[BillGoss]

Thanks a lot. I have used zips from nlos topic. Its hard to be up to date these days. I miss Gingerbread times :]

Yeah, Google keeps making it more and more difficult to have a rooted phone.

Sent from my OnePlus 3T using XDA Labs

 

[Primokorn]

Yeah, Google keeps making it more and more difficult to have a rooted phone.

Sent from my OnePlus 3T using XDA Labs

Actually it's difficult for Magisk's maintainer, not for us. We only have one file to flash.

 

[NS12799y]

My 3T us constantly lagging, even the Google search widget keeps hanging, what am I supposed to do? I updated to the oxygen 9.0.6 update last year by mistake. I did a factory reset and flashed back to 9.0.2, still got the same problems. Any solutions that do not involve rooting?

 

[RASTAVIPER]

My 3T us constantly lagging, even the Google search widget keeps hanging, what am I supposed to do? I updated to the oxygen 9.0.6 update last year by mistake. I did a factory reset and flashed back to 9.0.2, still got the same problems. Any solutions that do not involve rooting?

What happened after the factory reset?
Was it working fine at the beginning and then started lagging again?
Did you restore any apps or backups maybe?

Sent from my ONEPLUS A6003 using Tapatalk

 

[NS12799y]

It is the same as before. Lagging. Lot of latent time on starting apps. Touch latency too. Very bothersome especially on typing. Video playback stuttering.
I took a cloud backup, did a factory reset, downloaded the full ROM and installed in recovery mode. Completed setup and tried using it, still has all the same issues.
I'm not sure which old version of oxygen to downgrade to for optimal function. I'd like to try that first and explore further if it doesn't work??*

 

[topcat0]

The problem wasn't the OxygenOS level. 9.0.6 is the last OOS for this phone and it working just fine. You must have something else going on with your phone. You say you downloaded the full ROM, is that the factory OnePlus ROM at Android 9 or a custom ROM? Also, did you test it after reset, before installing a new ROM, just to see if it happened then? If everything is stock and it lagged after reset, etc., it may be a HW issue but I'm not a hardware guy.

Good luck, I hate to see a phone go down.

 

[NS12799y]

My phone was doing fine until the last update. I checked it after each step. I keep seeing this issue in forums , that 3t started lagging a lot after the last couple updates (in September '19 probably) hence I thought downgrading might be the place to start. I used the original OnePlus ROM, I haven't tried custom ROMs yet. Any suggestions? There's no point in spending any money on this phone at the moment, so I'd like to explore software issues first.

 

[realtobman]

hi there,
yesterday I wanted to clean flash on my OP3T Havoc OS beta (the one based on Android 11) over the current stable Havoc OS based on Android 10. I ended up making a huge mistake wiping everything including system partition and data partition including Downloads and Personal Files. So now all I have left is a functioning TWRP recovery, an unlocked bootloader; the device is encrypted but has no OS on it! I don't have a backup. My main problem is I can't fastboot or adb the device - not on the black screen I get after the oneplus symbol during boot - and not in TWRP or Bootloader mode because the telephone is not recognized in device manager on my win 10 machine, same on another linux machine, the device is not recognized by adb or fastboot. Nextt thing I want to try is usb stick OTG and go from there.
Anyway, thanks for reading. Do you guys have any suggestions?

 

[gm130169]

bootloop fastboot

Mod edit - translated by https://www.deepl.com/translator
hello everyone, my 3t oneplus after overwriting a custom rom without any wipe or reset has crashed in fastboot mode and no recovery, no startup and is no longer recognized by the computer or is only recognized as a generic android and I can't change the drivers, if I try to turn it off it returns to fastboot mode. am I desperate for some pious soul to help me?
*******************
salve a tutti, il mio oneplus 3t dopo la sovrascrittura di una rom custom senza nessun wipe o reset si è bloccato in fastboot mode e non si muove niente recovery niente avvio e non viene riconosciuto più dal computer ovvero viene solo riconosciuto come android generico e non posso cambiare i driver, se provo a spegnerlo ritorna in fastboot mode. sono disperato qualche anima pia che mi aiuta?

 

[Oswald Boelcke]

Mod edit - translated by https://www.deepl.com/translator
hello everyone, my 3t oneplus after overwriting a custom rom without any wipe or reset has crashed in fastboot mode and no recovery, no startup and is no longer recognized by the computer or is only recognized as a generic android and I can't change the drivers, if I try to turn it off it returns to fastboot mode. am I desperate for some pious soul to help me?
*******************
salve a tutti, il mio oneplus 3t dopo la sovrascrittura di una rom custom senza nessun wipe o reset si è bloccato in fastboot mode e non si muove niente recovery niente avvio e non viene riconosciuto più dal computer ovvero viene solo riconosciuto come android generico e non posso cambiare i driver, se provo a spegnerlo ritorna in fastboot mode. sono disperato qualche anima pia che mi aiuta?

Please refer to here: https://forum.xda-developers.com/showpost.php?p=83994115&postcount=2