Locked bootloader but with TWR and rooted. - ONE Q&A, Help & Troubleshooting

Two days ago, I unlocked my bootloader and it wiped everything. After that, I installed TWR and rooted the device with a toolkit.
Now I don’t know what went wrong, but I would like to flash CWM recovery instead of TWR, but...
it’s now showing that my bootloader is LOCKED.
And I cannot unlock after I’ve tried using adb, cmd, or the toolkit.
I will hold Vol Up+power to enter fastboot and as soon as I hit “unlock bootloader” or enter “fastboot oem unlock” in command, the phone immediately starts into TWR.
Without an unlocked bootloader, I cannot flash anything via the bootloader.
Any help would be appreciated. Thank you!

Turn the phone completely off. Hold volume up + power, plug the phone in via USB (ensure that you have the drivers installed for the phone)
fastboot oem unlock
fastboot reboot
then go back into volume up + power (fastboot mode)..... fastboot flash recovery <recovery-name>.img while the recovery file is in the fastboot.exe folder. then boot into recovery.

zephiK said:
Turn the phone completely off. Hold volume up + power, plug the phone in via USB (ensure that you have the drivers installed for the phone)
fastboot oem unlock
fastboot reboot
Click to expand...
Click to collapse
You see, I cannot even get to the part where I reboot the phone myself because the phone automically does it for me and jumps itself into TWR recovery and does not unlock the bootloader for me.
It takes less than a second from when i run the command "fastboot oem unlock" to when the phone reboots. Then it take about 15 seconds to get to the TWR recovery.
The only drivers I've installed on my Win8 (tried Win 7 as well) are these:
http://forum.xda-developers.com/showthread.php?t=2588979
Any other drivers I'm missing? I do not want to do download the full SDK.

lemonspeakers said:
You see, I cannot even get to the part where I reboot the phone myself because the phone automically does it for me and jumps itself into TWR recovery and does not unlock the bootloader for me.
It takes less than a second from when i run the command "fastboot oem unlock" to when the phone reboots. Then it take about 15 seconds to get to the TWR recovery.
The only drivers I've installed on my Win8 (tried Win 7 as well) are these:
http://forum.xda-developers.com/showthread.php?t=2588979
Any other drivers I'm missing? I do not want to do download the full SDK.
Click to expand...
Click to collapse
I actually had that happen to me too. When I typed fastboot oem unlock, my phone just instantly rebooted. But the bootloader was still unlocked. Use http://forum.xda-developers.com/showthread.php?t=2788632 and start from scratch. Use Universal Naked Drivers 0.73, they work amazing. I had these drivers installed before so I didn't even need to install drivers.

zephiK said:
I actually had that happen to me too. When I typed fastboot oem unlock, my phone just instantly rebooted. But the bootloader was still unlocked. Use http://forum.xda-developers.com/showthread.php?t=2788632 and start from scratch. Use Universal Naked Drivers 0.73, they work amazing. I had these drivers installed before so I didn't even need to install drivers.
Click to expand...
Click to collapse
I tried your method but I keep restarting to the twrp recovery.
and specific thing that made the device unlock the bootloader. Fastboot OEM unlock just restarts my device
I have the correct drivers the win 7 pc does recognize the device in fastboot mode.
thank you

tkdsl said:
I tried your method but I keep restarting to the twrp recovery.
and specific thing that made the device unlock the bootloader. Fastboot OEM unlock just restarts my device
I have the correct drivers the win 7 pc does recognize the device in fastboot mode.
thank you
Click to expand...
Click to collapse
Silly to ask, but you unchecked the cm update in dev settings and enabled debugging?
Personally, my second lappy didn't even list the device in fastboot, but the commands still worked.
I would just boot into fastboot and run the all the commands in series.

teh roxxorz said:
Silly to ask, but you unchecked the cm update in dev settings and enabled debugging?
Personally, my second lappy didn't even list the device in fastboot, but the commands still worked.
I would just boot into fastboot and run the all the commands in series.
Click to expand...
Click to collapse
I've already tried this on 3 different computers.
I don't see how having dev mode would affect bootloader if I never boot into the OS.
Someone had the same issue and had found a fix. I will give this tampering fix a try:
http://forum.xda-developers.com/oneplus-one/help/locked-bootloader-totally-locked-t2817735

lemonspeakers said:
Two days ago, I unlocked my bootloader and it wiped everything. After that, I installed TWR and rooted the device with a toolkit.
Now I don’t know what went wrong, but I would like to flash CWM recovery instead of TWR, but...
it’s now showing that my bootloader is LOCKED.
And I cannot unlock after I’ve tried using adb, cmd, or the toolkit.
I will hold Vol Up+power to enter fastboot and as soon as I hit “unlock bootloader” or enter “fastboot oem unlock” in command, the phone immediately starts into TWR.
Without an unlocked bootloader, I cannot flash anything via the bootloader.
Any help would be appreciated. Thank you!
Click to expand...
Click to collapse
Hi lemonspeakers,
sadly I don't have a solution, but the same problem.
Current state:
Bootloader locked
TWRP installed
no root
Sending "fastboot oem unlock" causes reboot to recovery.
Besides that the phone is fully working. (My friends thing I'm crazy because I'm sad about a fully working, "normal" phone
I hope somebody have suggestions to fix the issue.
Update:
I've just seen the tamering fix thread and I'm going to try that, too,
Did it work for you?

Dr.Linde said:
Hi lemonspeakers,
sadly I don't have a solution, but the same problem.
Current state:
Bootloader locked
TWRP installed
no root
Sending "fastboot oem unlock" causes reboot to recovery.
Besides that the phone is fully working. (My friends thing I'm crazy because I'm sad about a fully working, "normal" phone
I hope somebody have suggestions to fix the issue.
Update:
I've just seen the tamering fix thread and I'm going to try that, too,
Did it work for you?
Click to expand...
Click to collapse
I haven't tried it because i'm out on vacation for a few days. I didn't want to bring my new oneplus with me.
If you tried that fix, let me know how it went. thanks!

lemonspeakers said:
I haven't tried it because i'm out on vacation for a few days. I didn't want to bring my new oneplus with me.
If you tried that fix, let me know how it went. thanks!
Click to expand...
Click to collapse
Actually, I tried it and... It works!
I flashed the script, than used this guide (again):
http://forum.xda-developers.com/showthread.php?t=2788632
Than it looked like the only improvement is, that the bootloader is now unlocked. Root didn't work.
I could fix that by going to Recovery, factory reset, reinstall SuperSU an reboot. My phone now is finally rooted.
I think the factory reset part is strange, but I'm so glad I now have a rooted OPO.
When you try it, please let me know if you also have to do a factory reset.

Dr.Linde said:
Actually, I tried it and... It works!
I flashed the script, than used this guide (again):
http://forum.xda-developers.com/showthread.php?t=2788632
Than it looked like the only improvement is, that the bootloader is now unlocked. Root didn't work.
I could fix that by going to Recovery, factory reset, reinstall SuperSU an reboot. My phone now is finally rooted.
I think the factory reset part is strange, but I'm so glad I now have a rooted OPO.
When you try it, please let me know if you also have to do a factory reset.
Click to expand...
Click to collapse
That is sooo SCHWEET! I can't wait to try it on my phone when I get home! Woot!

Related

[Q] Unable to Flash Custom Recovery, ADB not detecting device, etc.

First problem: when I do "adb devices" in command prompt, there are no devices listed. I am pretty sure I have installed all the proper drivers.
Second problem: I don't know if my boot loader is unlocked. The reason I think this is because when I used the manudroid19 toolkit to unlock the boot loader, it restores my system, but when I try to flash a custom ROM, nothing happens. People I've talked to say that its supposed to stay in fast boot mode for about a minute before it actually boots into TWRP, but nothing actually happens.
Third problem: when I press the root button in manudroid19, nothing happens. The cmd prompt just pops up for a split second then nothing. Plain out nothing happens. Root Checker says my phone is not rooted.
How would I resolve all of this?
cm recovery
WunderWuffle said:
First problem: when I do "adb devices" in command prompt, there are no devices listed. I am pretty sure I have installed all the proper drivers.
Second problem: I don't know if my boot loader is unlocked. The reason I think this is because when I used the manudroid19 toolkit to unlock the boot loader, it restores my system, but when I try to flash a custom ROM, nothing happens. People I've talked to say that its supposed to stay in fast boot mode for about a minute before it actually boots into TWRP, but nothing actually happens.
Third problem: when I press the root button in manudroid19, nothing happens. The cmd prompt just pops up for a split second then nothing. Plain out nothing happens. Root Checker says my phone is not rooted.
How would I resolve all of this?
Click to expand...
Click to collapse
uncheck update cm recovery under settings..developer option..
WunderWuffle said:
First problem: when I do "adb devices" in command prompt, there are no devices listed. I am pretty sure I have installed all the proper drivers.
Second problem: I don't know if my boot loader is unlocked. The reason I think this is because when I used the manudroid19 toolkit to unlock the boot loader, it restores my system, but when I try to flash a custom ROM, nothing happens. People I've talked to say that its supposed to stay in fast boot mode for about a minute before it actually boots into TWRP, but nothing actually happens.
Third problem: when I press the root button in manudroid19, nothing happens. The cmd prompt just pops up for a split second then nothing. Plain out nothing happens. Root Checker says my phone is not rooted.
How would I resolve all of this?
Click to expand...
Click to collapse
My first piece of advice: stop using a toolkit, it's clearly creating more confusion than it's actually helping.
When you're issuing the 'adb devices' command are you booted into Android? What happens when you issue 'fastboot devices' when you're in fastboot mode?
Transmitted via Bacon
paztine said:
uncheck update cm recovery under settings..developer option..
Click to expand...
Click to collapse
Its always been unchecked.
timmaaa said:
My first piece of advice: stop using a toolkit, it's clearly creating more confusion than it's actually helping.
When you're issuing the 'adb devices' command are you booted into Android? What happens when you issue 'fastboot devices' when you're in fastboot mode?
Transmitted via Bacon
Click to expand...
Click to collapse
When I did adb devices, I was in Android iirc. I can't remember since the last time I did it was a day or two ago. Sorry. I am not very knowledgeable in this area. I have not done the fastboot device command.
WunderWuffle said:
Its always been unchecked.
When I did adb devices, I was in Android iirc. I can't remember since the last time I did it was a day or two ago. Sorry. I am not very knowledgeable in this area. I have not done the fastboot device command.
Click to expand...
Click to collapse
Ok, adb commands will only work while you're booted into Android or booted into recovery. Similarly, fastboot commands will only work while in fastboot mode. Let us know how you go, and if you get your serial number turned from the 'fastboot devices' command, issue this one:
Code:
fastboot oem device-info
And post the results.
Transmitted via Bacon
I would start by reading up on fastboot, this phone is as easy to root as they come so as mentioned earlier a toolkit just ads to the hassle
http://forum.xda-developers.com/showthread.php?t=2277112
Here you will find information on how to get adb and fastboot working properly, my guess is its a driver issue right now. So check device manager and manually update to the appropriate drivers if needed
And here you will find the steps to manually root
http://forum.xda-developers.com/showthread.php?t=2788632
Best of luck!
timmaaa said:
Ok, adb commands will only work while you're booted into Android or booted into recovery. Similarly, fastboot commands will only work while in fastboot mode. Let us know how you go, and if you get your serial number turned from the 'fastboot devices' command, issue this one:
Code:
fastboot oem device-info
And post the results.
Transmitted via Bacon
Click to expand...
Click to collapse
I just did that. Here are my results. It says that my device has been tampered with, and my boot loader is unlocked. And now, for some odd reason (I guess I was in fastboot while I was doing adb commands), it not detects my One. Thank you!
demkantor said:
I would start by reading up on fastboot, this phone is as easy to root as they come so as mentioned earlier a toolkit just ads to the hassle
http://forum.xda-developers.com/showthread.php?t=2277112
Here you will find information on how to get adb and fastboot working properly, my guess is its a driver issue right now. So check device manager and manually update to the appropriate drivers if needed
And here you will find the steps to manually root
http://forum.xda-developers.com/showthread.php?t=2788632
Best of luck!
Click to expand...
Click to collapse
Since I am not on my computer anymore, I will check these out and I will get back to both of you in a bit. Thanks!
timmaaa said:
Ok, adb commands will only work while you're booted into Android or booted into recovery. Similarly, fastboot commands will only work while in fastboot mode. Let us know how you go, and if you get your serial number turned from the 'fastboot devices' command, issue this one:
Code:
fastboot oem device-info
And post the results.
Transmitted via Bacon
Click to expand...
Click to collapse
demkantor said:
I would start by reading up on fastboot, this phone is as easy to root as they come so as mentioned earlier a toolkit just ads to the hassle
http://forum.xda-developers.com/showthread.php?t=2277112
Here you will find information on how to get adb and fastboot working properly, my guess is its a driver issue right now. So check device manager and manually update to the appropriate drivers if needed
And here you will find the steps to manually root
http://forum.xda-developers.com/showthread.php?t=2788632
Best of luck!
Click to expand...
Click to collapse
I rooted the phone manually using command prompt and everything worked! I got TWRP recovery, and Root Checker says I'm rooted! Thank you very much! Doing it this way took my less than 7 minutes while using the toolkit took me more than three hours, and that didn't even work!

[Q] Stuck in bootloop but don't have USB Debugging enabled

So I'm in the precarious bootloop nightmare... and I'm pretty noobish at Android on the "developer" side, I'll say. I also didn't have USB Debugging enabled when my phone randomly decided to freak out on me.
I tried the fix found here:
Edit: I can't post links yet. The fix is found at Android Police. Story is titled: Here's An Easy Fix For A OnePlus One Sudden Death Bug That Results In Neverending Boot Loops.
I got to the point where I had to input the "adb shell" command then crashed and burned. My computer never recognized the device on the "adb devices" command... and I'm assuming it's because I don't have USB Debugging enabled. There might be another reason why, but I couldn't tell you. The "fastboot devices" command gave me a valid response when I was in fastboot mode.
I'm kinda all over the place, sorry. Just not really sure what to do from here. Can a noob solve this relatively easy with USB Debugging not enabled (if that's the case)? I've submitted an RMA already, but I have a feeling it's going to take OPO forever to get back to me.
TIA!
When you connect your phone to your pc while in fastboot in device manager does it say Android Adb Device?
th3xeroeagle said:
When you connect your phone to your pc while in fastboot in device manager does it say Android Adb Device?
Click to expand...
Click to collapse
Yes, it does.
What I would do if I was stuck in a bootloop (well thats what I did when I soft bricked my phone "NO OS INSTALLED" now it works again )
is go here https://cyngn.com/products/oneplusone/ download the cm-11.0-XNPH38R-bacon-signed-fastboot.zip extract it in your fastboot folder (make sure you have the latest sdk tools from google or else with an older version it will say that system.img is too large when you flash the zip), open a cmd (run as administrator). check if your bootloader is still unlocked (mine got locked so I was facing a similar situation) type fastboot oem device-info ....it should say unlock true.... then
fastboot flash modem NON-HLOS.bin
fastboot flash sbl1 sbl1.mbn
fastboot flash dbi sdi.mbn
fastboot flash aboot emmc_appsboot.mbn
fastboot flash rpm rpm.mbn
fastboot flash tz tz.mbn
fastboot flash LOGO logo.bin
fastboot update -w cm-11.0-XNPH33R-bacon-signed-fastboot.zip
Click to expand...
Click to collapse
hope it works
hermunn123 said:
So I'm in the precarious bootloop nightmare... and I'm pretty noobish at Android on the "developer" side, I'll say. I also didn't have USB Debugging enabled when my phone randomly decided to freak out on me.
I tried the fix found here:
Edit: I can't post links yet. The fix is found at Android Police. Story is titled: Here's An Easy Fix For A OnePlus One Sudden Death Bug That Results In Neverending Boot Loops.
I got to the point where I had to input the "adb shell" command then crashed and burned. My computer never recognized the device on the "adb devices" command... and I'm assuming it's because I don't have USB Debugging enabled. There might be another reason why, but I couldn't tell you. The "fastboot devices" command gave me a valid response when I was in fastboot mode.
I'm kinda all over the place, sorry. Just not really sure what to do from here. Can a noob solve this relatively easy with USB Debugging not enabled (if that's the case)? I've submitted an RMA already, but I have a feeling it's going to take OPO forever to get back to me.
TIA!
Click to expand...
Click to collapse
Hey I had the same problem today, went into bootloop and unware of what the problem was i just flashed stock 38R but still had the bootloop. now as you can guess my usb debugging was not enabled but i got out of it here is how.
Go to TWRP>advanced>Terminal command.
now you should see the platform folder here
Just hit select button on the bottom right.
Now just type
make_ext4fs /dev/block/mmcblk0p15
Click to expand...
Click to collapse
And voila you are good to go.:good:
vamshi88 said:
Hey I had the same problem today, went into bootloop and unware of what the problem was i just flashed stock 38R but still had the bootloop. now as you can guess my usb debugging was not enabled but i got out of it here is how.
Go to TWRP>advanced>Terminal command.
now you should see the platform folder here
Just hit select button on the bottom right.
Now just type
And voila you are good to go.:good:
Click to expand...
Click to collapse
This seems like the easiest fix... but I don't have TWRP installed. Is it possible to install that in the state my phone is in?
hermunn123 said:
This seems like the easiest fix... but I don't have TWRP installed. Is it possible to install that in the state my phone is in?
Click to expand...
Click to collapse
What is your phones status now?
vamshi88 said:
What is your phones status now?
Click to expand...
Click to collapse
Completely stock phone that is stuck in the constant on,off bootloop. Can boot into fastboot and CyanogenMod Recovery screens.
hermunn123 said:
Completely stock phone that is stuck in the constant on,off bootloop. Can boot into fastboot and CyanogenMod Recovery screens.
Click to expand...
Click to collapse
I do not use CWM and so i dont know how to help you on that, but flashing TWRP is not hard through Fastboot just follow this guide http://forum.xda-developers.com/showthread.php?t=2788632.
let me know if you need further help.
vamshi88 said:
I do not use CWM and so i dont know how to help you on that, but flashing TWRP is not hard through Flashboot just follow this guide http://forum.xda-developers.com/showthread.php?t=2788632.
let me know if you need further help.
Click to expand...
Click to collapse
He can't flash TWRP because he said he's completely stock, which means the bootloader is locked. Btw, it's fastboot, not flashboot.
Transmitted via Bacon
timmaaa said:
He can't flash TWRP because he said he's completely stock, which means the bootloader is locked. Btw, it's fastboot, not flashboot.
Transmitted via Bacon
Click to expand...
Click to collapse
haha while typing i guess i mixed up flashing and fastboot hence flashboot. Also he can unlock the bootloader now cant he? what happens if he flashes TWRP without unchecking "Update recovery with system updates" (after bootloader unlock)? because after i got into the reboot problem i flashed the factory image, by now my bootloader was already unlocked but i was not able to uncheck the "Update recovery with system updates" or enable the usb debugging. still i flashed TWRP via fastboot and i was good to go.
vamshi88 said:
haha while typing i guess i mixed up flashing and fastboot hence flashboot. Also he can unlock the bootloader now cant he? what happens if he flashes TWRP without unchecking "Update recovery with system updates" (after bootloader unlock)? because after i got into the reboot problem i flashed the factory image, by now my bootloader was already unlocked but i was not able to uncheck the "Update recovery with system updates" or enable the usb debugging. still i flashed TWRP via fastboot and i was good to go.
Click to expand...
Click to collapse
He could try unlocking the bootloader, but my guess is that it will fail with his phone in the current state. Failing to uncheck the 'update cm recovery' option in Developer Options shouldn't pose a problem until an update is taken.
Transmitted via Bacon
Stuck in bootloop
th3xeroeagle said:
When you connect your phone to your pc while in fastboot in device manager does it say Android Adb Device?
Click to expand...
Click to collapse
Hey there,
My OPO is stuck in bootloop and believe me, i just took it out of the box (though it was 4 months without charge).
I cannot put it in to fast boot and I tried power cycling too by discharging it for 12 hours & charging for 6+1 hour. Its just the same.
Can you help?

Can't boot into recovery. any idea if this can be fixed?

I tried to root my Opo, but it started to go wrong after i flashed it. It went to reboot into TWRP, but all that happened was it crashed. the 1+ logo comes on and then the screen goes blank. This Happens all the time when I try a "fastboot oem unlock", factory reset, or a boot recovery.. the fastboot does work, but the device is also locked and i can't do a recovery due to this. I tried to do the root tutorial on youtube by C4ETech.. help please!
@nickizm, when you boot to fastboot and enter the command "fastboot devices", can you see your device listed on the screen?
Thanks for the reply.. The fastboot work fines apart from when I try to unlock the devices and it reboots into recovery, it crashes and doesn't unlock.. the rest of the phone works fine apart from the recovery... my bootloader is also locked and I can't unlock it due to crashing
(bootloader) Device tampered: true
(bootloader) Device unlocked: false
(bootloader) Charger screem enabled: false
I can't be certain but I'm pretty sure I read a similar issue to this a few days ago that was caused by not having the latest fastboot software, the user resolved it by downloading the latest android sdk and trying again.
Worth a shot.
Hope it helps.
Powered by Bacon
I had trouble when I first tried to root. Twrp wouldn't install. I ran some command which loaded it up but didn't install it on the phone, I was the able to root my phone.
Make sure you have latest oneplus one drivers. Have you tried using oneplus one toolkit to install recovery?
Sent from my Oneplus One using XDA Free mobile app.
I've tried to install a recovery, but my device is locked. If i do a "fastboot oem unlock" is just crashes on me when it going into recovery. I also get the same crash when I do a factory data reset or if I reboot into recovery. I think it's definitely something to do with the recovery, but since my device is locked i'm not sure what to do?... cheers again
nickizm said:
I've tried to install a recovery, but my device is locked. If i do a "fastboot oem unlock" is just crashes on me when it going into recovery. I also get the same crash when I do a factory data reset or if I reboot into recovery. I think it's definitely something to do with the recovery, but since my device is locked i'm not sure what to do?... cheers again
Click to expand...
Click to collapse
Did you try with the latest android sdk?
Powered by Bacon
I'm sure I did.. It wasn't that old.. I can try again, but the problem is I won't be able to unlock my phone??
is this the right link? http://developer.android.com/sdk/installing/index.html?pkg=studio
New drivers, exactly the same
Have you tried using a toolkit to do the unlock for you? People usually advise against using toolkits to do it for you as it prevents you gaining the experience of doing it yourself, but since it's not working when doing it yourself I don't see any harm in trying a toolkit.
You can find several options at the bottom of @timmaaa's resources roll-up thread here
Rkr87 said:
Have you tried using a toolkit to do the unlock for you? People usually advise against using toolkits to do it for you as it prevents you gaining the experience of doing it yourself, but since it's not working when doing it yourself I don't see any harm in trying a toolkit.
You can find several options at the bottom of @timmaaa's resources roll-up thread here
Click to expand...
Click to collapse
Yea i have also tried the tool kit V2
My problem is that the recovery is damaged in some way and my device is locked. i can't "fastboot oem unlock" as it just crashes when it goes to reboot.. is there a way to unlock my device with another method or can the recovery be repaired some how? i'm such noob
patstar5 said:
I had trouble when I first tried to root. Twrp wouldn't install. I ran some command which loaded it up but didn't install it on the phone, I was the able to root my phone.
Make sure you have latest oneplus one drivers. Have you tried using oneplus one toolkit to install recovery?
Sent from my Oneplus One using XDA Free mobile app.
Click to expand...
Click to collapse
Ye i tried that as well.. can't unlock the device as it just crashes when it goes to reboot into recovery
I think you might be out of luck, unless someone here more knowledgeable than I can help.
If you have a recovery image (not zip) you can try running the following command (make sure the img file is in the same directory as your adb/fastboot files and rename it "recovery");
Code:
fastboot boot recovery.img
What this allows you to do is boot into the TWRP recovery without having it installed on your phone, but I think I read somewhere that this command no longer works.
EDIT: If the above command will let you boot into TWRP, you'll want to read the guide here and flash the script.
Rkr87 said:
I think you might be out of luck, unless someone here more knowledgeable than I can help.
If you have a recovery image (not zip) you can try running the following command (make sure the img file is in the same directory as your adb/fastboot files and rename it "recovery");
Code:
fastboot boot recovery.img
What this allows you to do is boot into the TWRP recovery without having it installed on your phone, but I think I read somewhere that this command no longer works.
EDIT: If the above command will let you boot into TWRP, you'll want to read the guide here and flash the script.
Click to expand...
Click to collapse
I've tried that as well, but as my device is locked it won't allow it.. I'm stuck in limbo for now unless there is a way to unlock my device or repair the recovery? thanks for trying anyways
nickizm said:
I've tried that as well, but as my device is locked it won't allow it.. I'm stuck in limbo for now unless there is a way to unlock my device or repair the recovery? thanks for trying anyways
Click to expand...
Click to collapse
One last effort, after a bit of reading I've seen a few people with your issue have resolved it by flashing ColorOS (Chinese Stock ROM) and then going back to a custom rom once everything is fixed.
You can find a guide on how to do this here
Rkr87 said:
One last effort, after a bit of reading I've seen a few people with your issue have resolved it by flashing ColorOS (Chinese Stock ROM) and then going back to a custom rom once everything is fixed.
You can find a guide on how to do this here
Click to expand...
Click to collapse
Cheers mate! I just had a quick flick through it and it looks promising? the only problem seems to be with drivers in windows 7 which i am also using.. I'll see if I can do it via linux or i'll have to install xp on my old laptop or something.. I'll save this for tomorrow tho as it's late and will let you know how I get on with it. thanks for the help
nickizm said:
Cheers mate! I just had a quick flick through it and it looks promising? the only problem seems to be with drivers in windows 7 which i am also using.. I'll see if I can do it via linux or i'll have to install xp on my old laptop or something.. I'll save this for tomorrow tho as it's late and will let you know how I get on with it. thanks for the help
Click to expand...
Click to collapse
No worries! Let me know how it goes good luck!
Rkr87 said:
No worries! Let me know how it goes good luck!
Click to expand...
Click to collapse
Definitely! cheers again
nickizm said:
I tried to root my Opo, but it started to go wrong after i flashed it. It went to reboot into TWRP, but all that happened was it crashed. the 1+ logo comes on and then the screen goes blank. This Happens all the time when I try a "fastboot oem unlock", factory reset, or a boot recovery.. the fastboot does work, but the device is also locked and i can't do a recovery due to this. I tried to do the root tutorial on youtube by C4ETech.. help please!
Click to expand...
Click to collapse
can you give a little detail about
"device is also locked and i can't do a recovery due to this"
you did fastboot oem unlock. so saved data is wiped. but you should be able to boot into android system,
if so, enable "developer options" by clicking "settings" --> "about phone" --> "Build Number" click it 7 times,
then go into settings developer options and enable USB debugging.
then, use not fastboot, but adb to boot into recovery.
adb reboot recovery
Click to expand...
Click to collapse
there you can got into recovery.
Gh05tShie1d said:
can you give a little detail about
"device is also locked and i can't do a recovery due to this"
you did fastboot oem unlock. so saved data is wiped. but you should be able to boot into android system,
if so, enable "developer options" by clicking "settings" --> "about phone" --> "Build Number" click it 7 times,
then go into settings developer options and enable USB debugging.
then, use not fastboot, but adb to boot into recovery.
there you can got into recovery.
Click to expand...
Click to collapse
That doesn't work as my device crashes when it goes into recovery..
eg: "fastboot oem unlock", factory reset, or a boot recovery all crash as my recovery isn't working. When my device goes to reboot in recovery the 1+ logo comes up, fades out to like a blueish from the white 1+ logo and crashes.. so basically it's looked and I can't get into recovery.. thanks for trying

Fastboot and ADB not working, please help. Tried multiple PCs already

I was working on rooting my device, and had a working root successfully with Magisk. But then I wanted to remove it and relock my bootloader, that's when the trouble started.
I am able to boot the phone and it is working. I can boot to recovery (stock OEM not TWRP), can boot to bootloader, and can boot and use the Oxygen OS. But I cannot get fastboot to run to lock the bootloader. ADB devices comes up empty. These are the steps that I've tried:
-using it on my chromebook that was working with ADB before the unrooting mess
-installed fastboot and adb along with Oneplus USB drivers on a fresh Windows 8 copy
-2 different red OEM oneplus cables
My goal is to return completely to stock and a locked bootloader. Any help would be appreciated, it really seems to be a phone issue and not a driver issue. Thanks everyone!
Use the unbrick tool. That autolocks bootloader when it flashes stock.
NateDev said:
Use the unbrick tool. That autolocks bootloader when it flashes stock.
Click to expand...
Click to collapse
I looked into the tool, but I thought from what I read I had to be in fastboot mode to start. I can't get fastboot or adb to connect. Do you know if it will work without fastboot?
bam099 said:
I looked into the tool, but I thought from what I read I had to be in fastboot mode to start. I can't get fastboot or adb to connect. Do you know if it will work without fastboot?
Click to expand...
Click to collapse
Are you sure you have USB debugging checked in developer options?
Absolutely. Just checked again. I would normally say it was a driver issue, but it was working fine until I flashed a boot.img and also I used a windows pc and a Chromebook and chrome os pretty much comes ready to talk to android phones or of the box. I was wondering if adb could have been messed up during the flashing of boot images.
bam099 said:
I looked into the tool, but I thought from what I read I had to be in fastboot mode to start. I can't get fastboot or adb to connect. Do you know if it will work without fastboot?
Click to expand...
Click to collapse
No fastboot needed, it's done with the phone off.
NateDev said:
No fastboot needed, it's done with the phone off.
Click to expand...
Click to collapse
Even better! I will definitely try the tool and report back.
NateDev said:
No fastboot needed, it's done with the phone off.
Click to expand...
Click to collapse
This was correct and it worked. Phone is restored back to stock with a locked bootloader and everything is working as it should.

Cannot lock bootloader

So I'm trying to re-lock my bootloader,
I already looked up how to lock the bootloader and you can do that by booting in to fastboot and locking the bootloader from there. My OP6 was rooted but I removed all root related applications, I even reinstalled android.
I tought it would be as simple as unlocking the bootloader, but whatever I try I can't get my device to show up in the command promt when using the "adb devices" command while in fastboot. I tried reinstalling the ADB, fastboot and OP drivers a couple times but it doesn't help. I tried everything possible but I can't lock the bootloader.
Could somebody please help me with this?
ian_99 said:
So I'm trying to re-lock my bootloader,
I already looked up how to lock the bootloader and you can do that by booting in to bootloader and locking the bootloader from there. My OP6 was rooted but I removed all root related applications, I even wiped android.
I tought it would be as simple as unlocking the bootloader, but whatever I try I can't get my device to show up in the command promt when using the "adb devices" command. I tried reinstalling the ADB, fastboot and OP drivers a couple times but it doesn't help. I tried everything possible but I can't lock the bootloader.
Could somebody please help me with this?
Click to expand...
Click to collapse
You have to be in fastboot mode ( power off phone, hold power and volume up til you see fastboot on screen) on your phone to do want to want, if you cant do it that way,you can try this tool, https://forum.xda-developers.com/oneplus-6/how-to/tool-msmdownloadtool-v4-0-international-t3798892 , it will return your phone to stock factory fresh. It will be back on 5.1.5 software. Good luck
in fastboot mode just type without quote"fastboot oem lock"
MrSteelX said:
in fastboot mode just type without quote"fastboot oem lock"
Click to expand...
Click to collapse
I can boot into fastboot mode (I said bootloader instead of fastboot, my bad), but the command promt does NOT show any devices, so I can't use this command. All drivers are correctly installed.
Did you enable USB debug?
whizeguy said:
Did you enable USB debug?
Click to expand...
Click to collapse
Yes I did
And I tried updating to android P but now I can't even access fastboot!
[UPDATE:]
I can finally boot into fastboot again, the only way to do this was to first boot into recovery and restart to fastboot from there.
And my device is still not detected by adb in fastboot
u do fastboot devices not adb devices
I just tried doing this in a Windows 7 virtual machine, but it gives the exact same results, I really don't know what is cousing this
Then take tool all in one
Well.... Use msm download tool then.. Since you can go to fastboot, it will reset everything and lock the BL.
whizeguy said:
Well.... Use msm download tool then.. Since you can go to fastboot, it will reset everything and lock the BL.
Click to expand...
Click to collapse
What a coincidence, I am watching a video on how you can fix a bricked OP6, wich does exaclty what you said.
Thanks!
ian_99 said:
I tought it would be as simple as unlocking the bootloader, but whatever I try I can't get my device to show up in the command promt when using the "adb devices" command while in fastboot.
Click to expand...
Click to collapse
You should do "fastboot devices" in fastboot mode!
I see thay you're doing "adb devices" instead which is wrong.
rhai said:
You should do "fastboot devices" in fastboot mode!
I see thay you're doing "adb devices" instead which is wrong.
Click to expand...
Click to collapse
Oh god that actually worked, how could I have forgotten I had to use the "fastboot" command.
I can't thank you enough :victory:
ian_99 said:
Oh god that actually worked, how could I have forgotten I had to use the "fastboot" command.
I can't thank you enough :victory:
Click to expand...
Click to collapse
No worries. Cheers!

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