OnePlus 6T Bootloop. Cant access fastboot!! Stuck - OnePlus 6T Questions & Answers

Hello and thanks in advance for taking out time to help me out here. I did something stupid. I had successfully rooted my new 6t and all was good until i turned off oem unlocking and usb debugging in developer mode. Wheni restarted my phone things went bad. Cant access bootloader or fastboot by pressing the power and volume up buttons. My pc wont recognize the phone so cant reflash or reboot into stock.
What shall i do.

Did you try fastboot devices
and fastboot oem unlock ?
Then I'd flash Oxygen from OnePlus website.
I used BluSpark on my 3T. Apparently, they have TWRP for 6T through BluSpark: https://oneplus.gadgethacks.com/how-to/install-twrp-recovery-your-oneplus-6t-0190296/

If that doesn't help go for the MSMtool.

Bonecloner said:
Hello and thanks in advance for taking out time to help me out here. I did something stupid. I had successfully rooted my new 6t and all was good until i turned off oem unlocking and usb debugging in developer mode. Wheni restarted my phone things went bad. Cant access bootloader or fastboot by pressing the power and volume up buttons. My pc wont recognize the phone so cant reflash or reboot into stock.
What shall i do.
Click to expand...
Click to collapse
If you get it booted again.
Try adb devices..... if recognized. Type..... adb reboot bootloader...
Then.... fastboot devices.
Also use TWRP fajita 3.2.3-8
I've had great luck with that one.. I rooted my 6T with blue spark but then switched to Fajita 3.2.3-8.

Related

Oneplus 2 Bricked - Please help

Good afternoon, I have been trying for Two weeks now to try to unbrick my OP2
I have flashed, reflashed and god knows what else and the furthest I can get is into Fastboot mode.
The bootloader is locked so i cant flash using Fastboot and cant even get ADB to recognise the device.
I have tried all of Namans methods and no4 is what allows me to use fastboot.
I have no recovery or OS installed, just fastboot. USB debugging is off also.
Is there anything i can do, because im banging my head against the wall here.
Many thanks.
Did you try unlocking the bootloader?
Sorry for not replying sooner, I have been busy with work.
The bootloader is locked and Fastboot oem unlock fails.
Im beginning to feel that i own a brick.

Bootloop on Lineage 15.1 08.April Build without USB Debugging enabled

Hi guys,
i managed to f*ck up.
I had a running LOS 15.1 build until today where it bootloops .
THe thing is that I am not able to access the storage for saving files or using ADB for flashing stock.
adb does not recognize my device since I didnt enable USB Debugging. What do I do now?
I need to boot to twrp at least or flash a stock image but I can't connect my phone..
what do I do?
PLease helpe, its urgent!!
Ragonexus said:
Hi guys,
i managed to f*ck up.
I had a running LOS 15.1 build until today where it bootloops .
THe thing is that I am not able to access the storage for saving files or using ADB for flashing stock.
adb does not recognize my device since I didnt enable USB Debugging. What do I do now?
I need to boot to twrp at least or flash a stock image but I can't connect my phone..
what do I do?
PLease helpe, its urgent!!
Click to expand...
Click to collapse
Power down your device, and power it back on. Just after vibrate press vol - that will take you to fastboot mode.
I have screwed up on every possible way and fastboot saved me every damn time!!!
Just get the timing right , go to fastboot , connect miflash -> flash stock image.
Anantha47 said:
Power down your device, and power it back on. Just after vibrate press vol - that will take you to fastboot mode.
I have screwed up on every possible way and fastboot saved me every damn time!!!
Just get the timing right , go to fastboot , connect miflash -> flash stock image.
Click to expand...
Click to collapse
Already tried MiFlash in Fastboot mode, but it doesnt seem to recognize my device, although I'm pretty sure I have the right adb drivers installed on my Windows 10 machine. MAybe I gotta reinstall them, but I'm not sure which are 100 percent right.
Thanks!!

phone bricked? help!

I decided to update my old oneplus 2 to lineageos 15.1 with, but when I tried to flash the file with TWRP, it shows an error. Since the TWRP version I was using was old, I decided to update it first. Keep in mind at this point i had completely wiped my device. So, I downloaded the "twrp-3.2.1-0-kenzo.img" file, as per a youtube video where the dude managed to flash the update successfully, and gave it a go. It showed up as successful. Then i shut the whole device off, and tried to boot back in to recovery to flash the ROM again, but the thing won't boot. It's stuck on this boot screen (with the oneplus logo and 'powered by android' at the bottom), and refuses to go further. I'm stuck in a situation with the phone having no OS, no recovery and the thing won't show up when I connect it to the pc either. Well, the pc makes the 'device connected' notification sound when I plug it in, but nothing shows up on the file explorer or the device manager.
That's my dilemma, please i need help!
Thanks in advance.
inwarse said:
I decided to update my old oneplus 2 to lineageos 15.1 with, but when I tried to flash the file with TWRP, it shows an error. Since the TWRP version I was using was old, I decided to update it first. Keep in mind at this point i had completely wiped my device. So, I downloaded the "twrp-3.2.1-0-kenzo.img" file, as per a youtube video where the dude managed to flash the update successfully, and gave it a go. It showed up as successful. Then i shut the whole device off, and tried to boot back in to recovery to flash the ROM again, but the thing won't boot. It's stuck on this boot screen (with the oneplus logo and 'powered by android' at the bottom), and refuses to go further. I'm stuck in a situation with the phone having no OS, no recovery and the thing won't show up when I connect it to the pc either. Well, the pc makes the 'device connected' notification sound when I plug it in, but nothing shows up on the file explorer or the device manager.
That's my dilemma, please i need help!
Thanks in advance.
Click to expand...
Click to collapse
You downloaded the KENZO (this is not oneplus2! ) TWRP and flashed it on another phone (oneplus2), just normal that it doesn't work and your phone is messed up.
If you can enter fastboot (vol up and power button to boot) you can rescue your phone:
-enter fastboot (vol up + power, while phone is completely off, u can also hold it until you can see "fastboot" written on the screen)
-connect device to a computer with fastboot installed
-type "fastboot oem unlock" into a terminal/cmd window if there is no error, you are good to go, otherwise your bootloader relocked, use this thread to recover
-if your bootloader is still unlocked, download the ONEPLUS2 TWRP IMG, ALWAYS make sure to only flash the roms, kernels, recoveries or zips for YOUR phone otherwise you can really DESTROY your phone!
-now type into terminal/cmd: "fastboot flash recovery *drag the oneplus2 twrp image into terminal/cmd window* and hit enter
-use vol down + power to reboot phone into recovery and wipe all partitions
-Install a ONEPLUS2 ROM of your choice
If something is not clear, use google, because this is most likely basic stuff you have to know when flashing your phone
I can in fact go to fastboot mode by holding the power+volume up keys. When I the phone to my pc it does show a fastboot device (9597b869 fastboot). What do i do from here?
inwarse said:
I can in fact go to fastboot mode by holding the power+volume up keys. When I the phone to my pc it does show a fastboot device (9597b869 fastboot). What do i do from here?
Click to expand...
Click to collapse
As I wrote above (it's a step-by-step guide, u only have to READ )
-connect device to a computer with fastboot installed
-type "fastboot oem unlock" into a terminal/cmd window if there is no error, you are good to go, otherwise your bootloader relocked, use this thread to recover
-if your bootloader is still unlocked, download the ONEPLUS2 TWRP IMG, ALWAYS make sure to only flash the roms, kernels, recoveries or zips for YOUR phone otherwise you can really DESTROY your phone!
-now type into terminal/cmd: "fastboot flash recovery *drag the oneplus2 twrp image into terminal/cmd window* and hit enter
-use vol down + power to reboot phone into recovery and wipe all partitions
-Install a ONEPLUS2 ROM of your choice
wertus33333 said:
As I wrote above (it's a step-by-step guide, u only have to READ )
-connect device to a computer with fastboot installed
-type "fastboot oem unlock" into a terminal/cmd window if there is no error, you are good to go, otherwise your bootloader relocked, use this thread to recover
-if your bootloader is still unlocked, download the ONEPLUS2 TWRP IMG, ALWAYS make sure to only flash the roms, kernels, recoveries or zips for YOUR phone otherwise you can really DESTROY your phone!
-now type into terminal/cmd: "fastboot flash recovery *drag the oneplus2 twrp image into terminal/cmd window* and hit enter
-use vol down + power to reboot phone into recovery and wipe all partitions
-Install a ONEPLUS2 ROM of your choice
Click to expand...
Click to collapse
i tried to follow the guide. but the bootloader, as per you description is relocked. the download link for the driver you provided shows up as empty/no longer available. that's where i'm getting stuck.
P.S, i can enter fastboot mode on the phone via power+volume up.
thanks for the help so far, i can't seem to find much help other than from you so far
Oh, the link is dead, sry for that. try this one (GDrive links are up and working).
inwarse said:
i tried to follow the guide. but the bootloader, as per you description is relocked. the download link for the driver you provided shows up as empty/no longer available. that's where i'm getting stuck.
P.S, i can enter fastboot mode on the phone via power+volume up.
thanks for the help so far, i can't seem to find much help other than from you so far
Click to expand...
Click to collapse
so i managed to get into qualcomm mode, updated the drivers, and ran "MSM8994DownloadTool.exe" in administrator mode. it went as it's outlined in your guide. however, at the end of that process, the phone got stuck in a bootloop (the oneplus logo flashes for a moment and restarts). and can't get into qualcomm mode now, since when i connect the usb to the pc while the phone off, it lights the display (to show that it's charging, i think). any way back from this?
(i can still get into fastboot mode)
inwarse said:
so i managed to get into qualcomm mode, updated the drivers, and ran "MSM8994DownloadTool.exe" in administrator mode. it went as it's outlined in your guide. however, at the end of that process, the phone got stuck in a bootloop (the oneplus logo flashes for a moment and restarts). and can't get into qualcomm mode now, since when i connect the usb to the pc while the phone off, it lights the display (to show that it's charging, i think). any way back from this?
(i can still get into fastboot mode)
Click to expand...
Click to collapse
Do you still have TWRP? If yes go to TWRP and shut down the phone there, afterwards you should be able to enter qualcomm mode again.
otherwise you have to try (i think 10s power button will shut the device completely down). You should be able to enter qualcomm mode if the device is fully shut off (your scenario sounds as if the device is not fully shut off when u connect it to the pc).
Just to go sure: You are absolutely sure to have a oneplus2, are you?
inwarse said:
so i managed to get into qualcomm mode, updated the drivers, and ran "MSM8994DownloadTool.exe" in administrator mode. it went as it's outlined in your guide. however, at the end of that process, the phone got stuck in a bootloop (the oneplus logo flashes for a moment and restarts). and can't get into qualcomm mode now, since when i connect the usb to the pc while the phone off, it lights the display (to show that it's charging, i think). any way back from this?
(i can still get into fastboot mode)
Click to expand...
Click to collapse
Could you resolve the issue?
wertus33333 said:
Could you resolve the issue?
Click to expand...
Click to collapse
nope. kept running into issue after issue, so got dejected and gave up.

Stuck with no ROM

Uninstalled magisk and the screen is black, only vibrates when pressing power button or the right side of the screen. I don't even know how to turn off the phone. I was able to do it because the warning of the bootloader being unlocked appears. How I can flash stock rom? abd won't recognize the phone.
I saw https://forum.xda-developers.com/oneplus-6t/how-to/tool-6t-msmdownloadtool-v4-0-oos-9-0-5-t3867448 this while searching but I'm scared since it locks the bootloader after.
Thank you
EnderEgg said:
Uninstalled magisk and the screen is black, only vibrates when pressing power button or the right side of the screen. I don't even know how to turn off the phone. I was able to do it because the warning of the bootloader being unlocked appears. How I can flash stock rom? abd won't recognize the phone.
I saw https://forum.xda-developers.com/oneplus-6t/how-to/tool-6t-msmdownloadtool-v4-0-oos-9-0-5-t3867448 this while searching but I'm scared since it locks the bootloader after.
Thank you
Click to expand...
Click to collapse
Can you get into fastboot? Hold down both volume buttons together and see if you can force your device into fastboot mode. Then from there, get the TWRP img file and use fastboot to boot the image, then flash the stock OOS rom, either from TWRP install option or with adb sideload of you're comfortable doing that.
H4X0R46 said:
Can you get into fastboot? Hold down both volume buttons together and see if you can force your device into fastboot mode. Then from there, get the TWRP img file and use fastboot to boot the image, then flash the stock OOS rom, either from TWRP install option or with adb sideload of you're comfortable doing that.
Click to expand...
Click to collapse
I can, could you link me to a tutorial how to boot the image? I got it already, but unsure of how to proceed. Many thanks!
edit: now when I connect it to the PC it stays on the warning that the boot loader is unlocked
Now I was able to start TWRP but I still don't know how to send the file to the phone;
ADB recognizes the phone when TWRP is running
I think it's solved, thanks a bunch!

OnePlus 8 Pro Fastboot Bootloop

My OnePlus 8 Pro is stuck in a fastboot boot loop, can't even power the phone down at this point, fastboot just comes back up again. There is no ROM on the phone somehow (after attempting to downgrade from the beta program) The bootloader is also locked as well, and can't flash any fastboot images. I have attempted to use the MsmDownloadTool, but can't get out of fastboot to use it.
What can I do at this point?
UPDATE: After letting the phone sit and drain the battery completely, I was able to get it into EDL mode, and use the MSM tool, it flashed everything, but still no boot. Any suggestions?
Make sure that you are not connected to USB and select power off from the fastboot menu. You should be able to put it into EDL mode after that and connect back to USB so that you can use the msm tool.
rmiles7721 said:
Make sure that you are not connected to USB and select power off from the fastboot menu. You should be able to put it into EDL mode after that and connect back to USB so that you can use the msm tool.
Click to expand...
Click to collapse
Power off would immediately power back on and to fastboot. I let the phone die and was able to get it to go into EDL mode after, and was able to use the MSM tool, but still no boot.
Any suggestions?
Only time I have had that happen is when I still had the USB cable connected. If it let you use the msm tool and still no boot there may be something wrong with the phone and need an RMA.
Can you access fastboot from the command line? Try downloading the fastboot rom and flash it using the flash-all bat. I had an issue after doing an ota where it wouldn't boot anything but the bootloader. Had to manually change slots to B and then run flash-all and was good after that.
Sent from my ONEPLUS IN2023 using Tapatalk
rmiles7721 said:
Only time I have had that happen is when I still had the USB cable connected. If it let you use the msm tool and still no boot there may be something wrong with the phone and need an RMA.
Can you access fastboot from the command line? Try downloading the fastboot rom and flash it using the flash-all bat. I had an issue after doing an ota where it wouldn't boot anything but the bootloader. Had to manually change slots to B and then run flash-all and was good after that.
Sent from my ONEPLUS IN2023 using Tapatalk
Click to expand...
Click to collapse
Fastboot does boot, but it is locked so there is no flashing anything through that.
Recovery can now boot as well, but still no boot to OS.
hole896 said:
Fastboot does boot, but it is locked so there is no flashing anything through that.
Recovery can now boot as well, but still no boot to OS.
Click to expand...
Click to collapse
So unlock it?
c_86 said:
So unlock it?
Click to expand...
Click to collapse
"but it is locked so there is no flashing anything through that."
Cannot unlock as I can't boot into an OS to enable the unlock. Tried flashing through fastboot but gives error that it has to be unlocked. I have attempted unlocking it through fastboot but it gives an error that it can't be unlocked.
hole896 said:
"but it is locked so there is no flashing anything through that."
Cannot unlock as I can't boot into an OS to enable the unlock. Tried flashing through fastboot but gives error that it has to be unlocked. I have attempted unlocking it through fastboot but it gives an error that it can't be unlocked.
Click to expand...
Click to collapse
Rough. I was thinking since it didn't have a os loaded it would bypass that switch in dev options
c_86 said:
Rough. I was thinking since it didn't have a os loaded it would bypass that switch in dev options
Click to expand...
Click to collapse
Yep, already contacted OnePlus the other day and they are supposed to be setting up a remote session, but I haven't heard from them yet...

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