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Hi, I literally opened the nexus 9 out of the box, powered it on & after choosing a wifi network it began updating, the device crashed during this update and now it won't boot! I've tried & searched for everything, anyone have any ideas?
Booting to recovery with HW buttons, wiping cache/userdata/factory reset - Nada!
Can boot into fastboot, no permission to flash as oem unlock is disabled!
I cant get into the tablet to unlock fastboot oem unlock within devOpitons or usb debugging etc, (com.android.phone has stopped on boot) black screen indefinitely.
I can't flash any images while it is locked
surely there must be a simple method?
desperate here
Return it
I'd just return it. I'm no expert, but I'd seek a way to avoid the update during setup and try to postpone it until you unlock developer options and OEM unlock. I'm not sure how you'd bypass the update during setup, but you're in the right place if it's possible.
VermontKindBud said:
I'd just return it. I'm no expert, but I'd seek a way to avoid the update during setup and try to postpone it until you unlock developer options and OEM unlock. I'm not sure how you'd bypass the update during setup, but you're in the right place if it's possible.
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Hmm, its one of works, just bought bulk amount of them. surely it can't be stuck in an unescapable cycle?
syko9 said:
Hmm, its one of works, just bought bulk amount of them. surely it can't be stuck in an unescapable cycle?
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Certainly it can. If it started to install the 5.0.2 OTA, there have been a lot of bricks.
cam30era said:
Certainly it can. If it started to install the 5.0.2 OTA, there have been a lot of bricks.
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Alright thanks for the info, guess it shall be replaced thanks.
syko9 said:
Alright thanks for the info, guess it shall be replaced thanks.
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Welcome. And FWIW: there's a button for that.
If I remember correctly you can still flash the stock images even with the boot loader locked. Its only custom images that google will not accept unless you unlock boot loader.
Ripx88 said:
If I remember correctly you can still flash the stock images even with the boot loader locked. Its only custom images that google will not accept unless you unlock boot loader.
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Bootloader has to be unlocked to "fastboot flash" anything.
You can sideload an OTA with a locked bootloader, but you have to be able to access recovery.
cam30era said:
Bootloader has to be unlocked to "fastboot flash" anything.
You can sideload an OTA with a locked bootloader, but you have to be able to access recovery.
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Ah ok gotcha. My apologizes, I thought I heard somewhere you could. Thank you for the correction.
Ripx88 said:
Ah ok gotcha. My apologizes, I thought I heard somewhere you could. Thank you for the correction.
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No problem. That's how we learn.
cam30era said:
No problem. That's how we learn.
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Indeed I'm still new to nexus devices. I've been flashing on Samsung devices for years so I'm still stuck in my Odin ways. Just got the N9 less then a week ago. The whole fastboot thing was foreign at first but I'm getting there lol. Thank you again.
Hello,
situation ist this:
Cyanogen Recovery is installed and there is no rom on the phone. But it won't install a new one through apply update. So I tried installing twrp through fast boot. But it failed with:
FAILED (remote: Device not unlocked cannot flash or erase)
So i tried to unlock it which gave me:
FAILED (remote: oem unlock is disabled)
oem devices gave me tampered = false and unlocked = false
What can I do.
Would appreciate help
Morishno
Flash stock recovery and try unlock again.
Dumb Question but how exactly do I do that?
Just flash it via fast boot? And where do i get it?
Morishno said:
Dumb Question but how exactly do I do that?
Just flash it via fast boot? And where do i get it?
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You can get it from oneplus downloads section, if you cant find it ask me... Yes you have to flash official stock recovery through fastboot
Exodusche said:
Flash stock recovery and try unlock again.
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cva_kabil said:
You can get it from oneplus downloads section, if you cant find it ask me... Yes you have to flash official stock recovery through fastboot
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Not really, OP reports that the unlock command gave him FAILED (remote: oem unlock is disabled)
Hey OP, did you enable OEM Unlocking from Developer options ?
Joshwin Aranha said:
Not really, OP reports that the unlock command gave him FAILED (remote: oem unlock is disabled)
Hey OP, did you enable OEM Unlocking from Developer options ?
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If not is there any other way?
cva_kabil said:
If not is there any other way?
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I'm sorry but i do not know any other method that works without flipping that switch in Developer Options.
Joshwin Aranha said:
I'm sorry but i do not know any other method that works without flipping that switch in Developer Options.
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You dont need to be sorry, thats okay i jus asked... Maybe OP didnt enable oem unlocking.
I didnt enable oem unlocking because it wasnt necessary. The device was unlocked and twrp and cyanogenmod were installed. But somehow cyanogen recovery was installed. Super user was away and I tried to reinstall it. Not knowing the recovery had changed I chose twrp/cwm to install it what resulted in a boot loop. No problem I thought just flash a ROM which didn't worked. No problem just flash a proper recovery it didn't worked. And somehow the device is locked again..
Sorry I was little brief when I said flash stock recovery. I believe if you revert back completely stock you can start the process from the beginning again. That would mean fastboot flash stock recovery then any firmware of OnePlus X. I'm not sure how a bootloader can relock itself.
Exodusche said:
Sorry I was little brief when I said flash stock recovery. I believe if you revert back completely stock you can start the process from the beginning again. That would mean fastboot flash stock recovery then any firmware of OnePlus X. I'm not sure how a bootloader can relock itself.
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But I couldn't flash twrp.. Is it possible to flash the stock recovery with a locked boot loader? I don't have access to the phone at the moment and i want to gather as much information possible thats why i'm asking
Morishno said:
But I couldn't flash twrp.. Is it possible to flash the stock recovery with a locked boot loader? I don't have access to the phone at the moment and i want to gather as much information possible thats why i'm asking
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I'm not sure but this has been addressed many times. Comb the threads you will find the information you need.
Exodusche said:
I'm not sure but this has been addressed many times. Comb the threads you will find the information you need.
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Found a hard brick guide. You mean that?
So I just remembered something was able to help someone else with a similar issue. If you can boot Into something and your rooted download the app Rashr. With it you can flash stock recovery and be back in business.
The problem is i dont have anything to Boot
//UPDATE: So I tried booting with fastboot boot but it said cannot boot device isn't unlocked.
Edited
So i managed to save the Phone using the Hard Brick Guide. Thanks everyone!
Thank goodness for the hard brick guide. ?
Exodusche said:
I think your gonna have to go through the hard bricked guide.
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Yeah i did that and it worked thank you
So, long story short, I recently bought a Nexus 9 from ebay which arrived with factory reset protection.
I have spoken to both Google and HTC about the situation and both were of no real help except for saying a few things outright between them to give me good enough reason to believe one of two things.
That 1 - it is possible to flash factory images over a device with a locked bootloader
or 2 - it is possible to unlock the bootloader without having access to developer settings
Anyone have any experience with either of these possibilities?
https://developers.google.com/android/ota
Full OTA Images can be flashed onto devices with locked boot loaders.
You need to boot into recovery and select sideload update.
Yeah, I know how to do that, but that only goes for updates, doesn't it? I tried to sideload a previous build onto the tablet but it failed the procedure, so it doesn't really solve the issue and if I flash a more recent update I still get FRP :/ If I wanted to revert back to the 7.0, or even marshmallow, would that be possible? Or does that require an unlocked bootloader?
enriquejones666 said:
https://developers.google.com/android/ota
Full OTA Images can be flashed onto devices with locked boot loaders.
You need to boot into recovery and select sideload update.
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Yeah, I know how to do that, but that only goes for updates, doesn't it? I tried to sideload a previous build onto the tablet but it failed the procedure, so it doesn't really solve the issue and if I flash a more recent update I still get FRP :/ If I wanted to revert back to the 7.0, or even marshmallow, would that be possible? Or does that require an unlocked bootloader?
BigDomTheFirst said:
Yeah, I know how to do that, but that only goes for updates, doesn't it? I tried to sideload a previous build onto the tablet but it failed the procedure, so it doesn't really solve the issue and if I flash a more recent update I still get FRP :/ If I wanted to revert back to the 7.0, or even marshmallow, would that be possible? Or does that require an unlocked bootloader?
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Those are full ota images, same as factory image. Meaning full package.
BigDomTheFirst said:
Yeah, I know how to do that, but that only goes for updates, doesn't it? I tried to sideload a previous build onto the tablet but it failed the procedure, so it doesn't really solve the issue and if I flash a more recent update I still get FRP :/ If I wanted to revert back to the 7.0, or even marshmallow, would that be possible? Or does that require an unlocked bootloader?
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Ah yes, now I see your predicament. Unfortunately, there is no "there" there. You do need an unlocked bootloader to wipe the system clean with a factory image, and as you noted, the Full OTA Image will recover you from a system that won't boot, but it won't get rid of FRP.
enriquejones666 said:
Ah yes, now I see your predicament. Unfortunately, there is no "there" there. You do need an unlocked bootloader to wipe the system clean with a factory image, and as you noted, the Full OTA Image will recover you from a system that won't boot, but it won't get rid of FRP.
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Exactly Hence my questions as to how do the manufacturers wipe everything and flash the new image without unlocking the bootloader? Or will it always be a trade secret?...... Hmmmm
BigDomTheFirst said:
Exactly Hence my questions as to how do the manufacturers wipe everything and flash the new image without unlocking the bootloader? Or will it always be a trade secret?...... Hmmmm
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did we ever fix this? my bootloader is locked and no os installed. Was trying to return to factory and went thru all the flashing steps successfully then at the end locked the bootloader. Now tablet says "for development purposes only not for production use" and boots back to fastboot. It will not reboot at all
Uncleheff said:
did we ever fix this? my bootloader is locked and no os installed. Was trying to return to factory and went thru all the flashing steps successfully then at the end locked the bootloader. Now tablet says "for development purposes only not for production use" and boots back to fastboot. It will not reboot at all
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Never found out how they do this.... are you able to boot in to recovery? if you can do that you may be able to flash a recovery OTA through 'apply update from ADB'. Worth a shot
Uncleheff said:
did we ever fix this? my bootloader is locked and no os installed. Was trying to return to factory and went thru all the flashing steps successfully then at the end locked the bootloader. Now tablet says "for development purposes only not for production use" and boots back to fastboot. It will not reboot at all
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If up dont mind my asking how did it get that way by just locking the bootloader? I was just about to flash stock and lock on my volantis, then read this...?
Bryanx86 said:
If up dont mind my asking how did it get that way by just locking the bootloader? I was just about to flash stock and lock on my volantis, then read this...?
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definitely don't lock your bootloader. That is a horrible move and serves no purpose
madbat99 said:
definitely don't lock your bootloader. That is a horrible move and serves no purpose
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I actually reflashed last factory stock image and relocked without issue. It is a horrible move, I agree...I already miss root, but it suits the purpose. Thanks for your reply.
Bryanx86 said:
I actually reflashed last factory stock image and relocked without issue. It is a horrible move, I agree...I already miss root, but it suits the purpose. Thanks for your reply.
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it's only a bad move if you make a mistake and can't repair it because your bootloader is now locked. But if it goes well then you're all set.
Hello,
recently I wanted to lock bootloader with a key. When I type in fastboot oem relock + key, it doesn´t work. I should be in stock EMUI without root etc. But I am on stock, so I assume that I am using a bad version of EMUI.
So my question is: Which ROM from Firmware finder should I flash to be able to lock bootloader?
Thanks for answers
Marek.N said:
Hello,
recently I wanted to lock bootloader with a key. When I type in fastboot oem relock + key, it doesn´t work. I should be in stock EMUI without root etc. But I am on stock, so I assume that I am using a bad version of EMUI.
So my question is: Which ROM from Firmware finder should I flash to be able to lock bootloader?
Thanks for answers
Click to expand...
Click to collapse
Boot into erecovery and download stock emui then try relock again if it doesn't relock
miststudent2011 said:
Boot into erecovery and download stock emui then try relock again if it doesn't relock
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Thanks for the answer but the recovery can´t get latest EMUI... Getting package into failed.
Marek.N said:
Thanks for the answer but the recovery can´t get latest EMUI... Getting package into failed.
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Okay it seems emui is modified. What build are you on ?
miststudent2011 said:
Okay it seems emui is modified. What build are you on ?
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Well, I tried with EMUI 8 .151 flashed in Multi tool in PC
EDIT: Finally I somehow get it, now I am downloading latest EMUI and then hopefully I will be able to lock bootloader.
Marek.N said:
Well, I tried with EMUI 8 .151 flashed in Multi tool in PC
EDIT: Finally I somehow get it, now I am downloading latest EMUI and then hopefully I will be able to lock bootloader.
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Hello,
did you had any luck locking the bootloader?
gerardo96 said:
Hello,
did you had any luck locking the bootloader?
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Yes, after downloaded ROM in erecovery, I locked bootloader without any problems.
Hello! I regret rooting, i found no real benefits for my taste of rooting this phone. Whats the process to unroot (magisk) and install stock again? Can i relock bootloader again? Thanks
Croize said:
Hello! I regret rooting, i found no real benefits for my taste of rooting this phone. Whats the process to unroot (magisk) and install stock again? Can i relock bootloader again? Thanks
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Yes. Just simply run the fastboot lock bootloader command. That should work and also wipe your root access in the process. But remember, it will completely wipe your phone.
Edit: the command actually might be fastboot oem lock actually.
Croize said:
Hello! I regret rooting, i found no real benefits for my taste of rooting this phone. Whats the process to unroot (magisk) and install stock again? Can i relock bootloader again? Thanks
Click to expand...
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Just go to magsik and hit uninstall and done
And OEM lock for the bootloader
No risk of bootloop?
Croize said:
No risk of bootloop?
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Shouldn't be but OEM lock will wipe the phone
In my case it was not working. System is corrupted message after unrooting and fastboot oem lock.
EugenStanis said:
In my case it was not working. System is corrupted message after unrooting and fastboot oem lock.
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I had that and ended up using the msm tool to fix it.
nms247 said:
I had that and ended up using the msm tool to fix it.
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Yes, relock is buggy. For now we have to use msm tool
EugenStanis said:
In my case it was not working. System is corrupted message after unrooting and fastboot oem lock.
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I had the same issue
EugenStanis said:
Yes, relock is buggy. For now we have to use msm tool
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So msm tool unroot, reinstall evefything and relock?
Croize said:
So msm tool unroot, reinstall evefything and relock?
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No, just put phone in EDL mode and afterwards flash full firmware with msm tool
EugenStanis said:
No, just put phone in EDL mode and afterwards flash full firmware with msm tool
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Hi,
Could you give me a link to download MSM tool for OnePlus 7T Pro. I need to relock my bootloader as well. I only found MSM tool for Oneplus 7 Pro.
Thnx in advance
snovharry said:
Hi,
Could you give me a link to download MSM tool for OnePlus 7T Pro. I need to relock my bootloader as well. I only found MSM tool for Oneplus 7 Pro.
Thnx in advance
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https://forum.xda-developers.com/7t-pro/how-to/op7tpro-unbrick-tool-to-restore-device-t4002909
Sent from my OnePlus7TPro using XDA Labs
Lossyx said:
https://forum.xda-developers.com/7t-pro/how-to/op7tpro-unbrick-tool-to-restore-device-t4002909
Sent from my OnePlus7TPro using XDA Labs
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Thnx mate..this worked like a charm.