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Help with returning to stock

I have use [XOOM][Wingray][STOCK]An easy way to return your XOOM to its *original* state but, at least step, i had push down bottom.. so i dont know if my wingray has bootloader locked or unlocked... can anybody help me??
thanks!

edudu1414 said:
I have use [XOOM][Wingray][STOCK]An easy way to return your XOOM to its *original* state but, at least step, i had push down bottom.. so i dont know if my wingray has bootloader locked or unlocked... can anybody help me??
thanks!
Click to expand...
Click to collapse
LOCKING BOOT LOADER
You need ADB so follow these steps.
To lock your boot loader you definitely need to have a proper connection between your device and computer.
To re lock your boot loader you need to:
1. Turn off your device
2. Hold your volume down button and press the power button. (KEEP HOLDING YOUR VOLUME DOWN BUTTON) You will see a white screen with fastboot written on it.
3. Navigate with your volume up or down to fastboot and press the power button to select it.
4. Connect your device with your computer,
5. Open the terminal in your computer and type in 'adb devices',
6. Type in 'fastboot oem lock' without quotes and your device is locked again, you will see relocked.

but i don't know the status of my bootloader.. if i have bootloader unlocked, i can re-use the zip to back to stock, that it includes relock bootloader
and if i have bootloader locked, i will unlock it
how i can know if it is unlocked or locked? thanks!

edudu1414 said:
but i don't know the status of my bootloader.. if i have bootloader unlocked, i can re-use the zip to back to stock, that it includes relock bootloader
and if i have bootloader locked, i will unlock it
how i can know if it is unlocked or locked? thanks!
Click to expand...
Click to collapse
You could try flashing a custom recovery to it. If it works, then your bootloader is unlocked.

edudu1414 said:
but i don't know the status of my bootloader.. if i have bootloader unlocked, i can re-use the zip to back to stock, that it includes relock bootloader
and if i have bootloader locked, i will unlock it
how i can know if it is unlocked or locked? thanks!
Click to expand...
Click to collapse
Only try to flash a custom recovery. If it works, you have unlocked bootloader.
Remember that locking back your bootloader can brick your tablet, and that locked bootloader is not needed for the updates.
I unlocked twice my unlocked bootloader and notting happened, it said "it's already unlocked" or something similar, but do at your own risk.

i dont flash a recovery yet but.. i can enter to android system recovery <3e>
does this mean that i have bootloader unlocked?
thanks!
EDIT. i flash twp2 and it works.. so i hadn't have my bootloader locked..
sure, i'm gonna flash ICS.. no more JB now

[REQ] Unbrick phone with OEM Unlock disabled

Accidentally relocked the bootloader before flashing system files provided by Google (flash-all)
Now I'm getting a message that the system files are corrupted and I can not get into recovery or unlock my bootloader.
Any help would be appreciated.

red screen or yellow warning screen.. if red and if you can still use fastboot there is a continue command that allows you to boot the phone up..then booted go into developers options, toggle oem locking and then boot back into bootloader and unlock again
fastboot continue
Sent from my marlin using XDA Labs

johnandbodhi said:
red screen or yellow warning screen.. if red and if you can still use fastboot there is a continue command that allows you to boot the phone up..then booted go into developers options, toggle oem locking and then boot back into bootloader and unlock again
fastboot continue
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Click to collapse
thank you for your help somehow i got it back up and running never want to see the white screen with google logo again i had to do the fastboot continue 8 million times

Please help me, I have a similar situation. Under developer options OEM unlock is dissabled.

Whoops, accidentally provided useless advice. Please disregard.

What happens if I disable OEM-Unlock in developer settings?

I already unlocked the bootloader, happens anything if I turn off oem unlock in developer settings or will the bootloader relock?

Maik_ said:
I already unlocked the bootloader, happens anything if I turn off oem unlock in developer settings or will the bootloader relock?
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Click to collapse
Turned it off once by accident but turned on again.. Nothing changed

I don't think anything changes unless u relock it via fastboot, which at that point as long as u can boot back into the OS, u can always unlock it again, relocking bootloader will format ur data and u will no long be rooted or have twrp installed

locking your bootloader with root etc installed can cause major problems so before doing that you should flash a stock firmware otherwise you will be locked out

Why would you want to do this? There is no benefit to it if you plan to stay rooted.

Need to find something to do. You bored

iElvis said:
Why would you want to do this? There is no benefit to it if you plan to stay rooted.
Click to expand...
Click to collapse
I want to disable developer options, but if I do that OEM-Unlock automatically turns off and I don't want to reboot because I dont want that I lock myself out.

Your cat will get knock up..........again!

Maik_ said:
I want to disable developer options, but if I do that OEM-Unlock automatically turns off and I don't want to reboot because I dont want that I lock myself out.
Click to expand...
Click to collapse
Just turning off Developer Options won't relock your bootloader. You can only do that manually in fastboot. But you'll also lose USB debugging, which means adb won't work anymore in case something goes wrong. (But leaving USB debugging on all the time isn't the best idea anyway.)

Hello everyone
I think I did that mistake
I have twrp installed on my phone Samsung SM-G532F . my phone was working just fine but I have locked the oem for no reason .
now when I turn off the device and tried to turn it on it shows { Custom binary blocked by FRP. (boot. img) }
and when I open recovery mode it shows { Custom binary blocked by FRP. (recovery. img) }
the download mode is working and shows that the FRP lock is on .
I tried to flash the stock recovery with odin but since the FRP is locked it failed .
the adb is not working because the device cannot boot , even the battery symbol when I plug my phone with a charger is not displayed and shows the error { Custom binary blocked by FRP. (boot. img) }
any ideas will help a lot .

omer123137 said:
Hello everyone
I think I did that mistake
I have twrp installed on my phone Samsung SM-G532F . my phone was working just fine but I have locked the oem for no reason .
now when I turn off the device and tried to turn it on it shows { Custom binary blocked by FRP. (boot. img) }
and when I open recovery mode it shows { Custom binary blocked by FRP. (recovery. img) }
the download mode is working and shows that the FRP lock is on .
I tried to flash the stock recovery with odin but since the FRP is locked it failed .
the adb is not working because the device cannot boot , even the battery symbol when I plug my phone with a charger is not displayed and shows the error { Custom binary blocked by FRP. (boot. img) }
any ideas will help a lot .
Click to expand...
Click to collapse
You cannot boot with a custom recovery and a locked bootloader. As to how to fix this, you need to ask in the Samsung forums. This is for OnePlus 6.

If you have a oneplus look in the forum for msmdownloadtool and follow the steps, you can revive your phone.
If your phone its a samsung, search in samsung forums for a tool to unbrick your phone.

iElvis said:
You cannot boot with a custom recovery and a locked bootloader. As to how to fix this, you need to ask in the Samsung forums. This is for OnePlus 6.
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Click to collapse
I was finally able to solve this issue with flashing the official firmware with odin . now I will never touch the oem unlock button ever again :laugh: . but thank you for your reply .
---------- Post added at 07:27 PM ---------- Previous post was at 07:22 PM ----------
Toni Moon said:
If you have a oneplus look in the forum for msmdownloadtool and follow the steps, you can revive your phone.
If your phone its a samsung, search in samsung forums for a tool to unbrick your phone.
Click to expand...
Click to collapse
I downloaded and flashed the official firmware with odin and it worked . thanks for the reply

I did this once on my OnePlus X, disabled oem unlocking in developer options. phone and recovery worked fine. I did a backup. Flashed a new rom to test it. The rom had AOSP recovery in the zip, overwriting twrp (opx has separate recovery partition). I flashed gapps affter the rom and the setup wizard was crashing so I could not boot in the home screen. Tried TWRP, its gone. Tried to boot to twrp via fastboot, oem locked. Had to do hard brick reset. Backup and data, gone.
TLDR, you should leave it on, unless you are on stock firmware.

After flash a rom you must flash twrp recovery again, restart in recovery and flash gapps and magisk

First of all you have to flash combination file associated with your device model through ap slot of odin.
Then your phone will turn on and you can access settings through which you can turn on oem unlock.
Then you can install your desired rom into your device

Sinankhan.official said:
First of all you have to flash combination file associated with your device model through ap slot of odin.
Then your phone will turn on and you can access settings through which you can turn on oem unlock.
Then you can install your desired rom into your device
Click to expand...
Click to collapse
This isn't a Samsung device.

Maik_ said:
I already unlocked the bootloader, happens anything if I turn off oem unlock in developer settings or will the bootloader relock?
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Click to collapse
I also accidentally turned off oem in rooted phone , Does my bootloader locked or I can safely reboot

I restored the stock firmware using Odin, but now I see that the bootloader is still unlocked.
When try to lock it again the system says: "If OEM unlock is turned off, your phone will be reset to factory default settings after restart. This will erase all of your data... " etc.
My question is: will the firmware be still in place? I don't mind everything being wiped, because most of it will be restored anyway when I login to Google and Samsung again.

SamarSS123 said:
I also accidentally turned off oem in rooted phone , Does my bootloader locked or I can safely reboot
Click to expand...
Click to collapse
No

My PIxel stuck on google Screen. Help :(

I kept my phone on charge for a few mins and when I came back to unplug, it was stuck on google screen. tried turning off the device or restarting it but nothing works. The phone was extremely hot. My phone is completely factory stock. the bootloader is locked too. how to recover it now ? please help.
i tried entering recovery mode but as soon as i select recovery it gets back to google logo screen again.
right now i have kept the phone in freezer now.

my bootloader is locked .. can i still unlock it and flash factory image ?

help ?

not a single reply ? bump...

Are you able to communicate with the device using fastboot?

Try flashing the stock images via fastboot
You won't need an unlocked bootloader for this

post-mortem said:
Are you able to communicate with the device using fastboot?
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yes im able to communicate with the device through fastboot. but my bootloader is locked.

wahur1 said:
yes im able to communicate with the device through fastboot. but my bootloader is locked.
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Click to collapse
Try the instructions at the top of the page here https://developers.google.com/android/images
It may work without unlocking the bootloader.

post-mortem said:
Try the instructions at the top of the page here https://developers.google.com/android/images
It may work without unlocking the bootloader.
Click to expand...
Click to collapse
whatever command i use it says OEM unlock is not allowed.

Just throwing out ideas that you may have already tried. If I understand right you cannot get into recovery which eliminates trying to sideload the stock image. Your bootloader is locked and it will not let you unlock so booting into TWRP is out of the question. Are you just wanting your phone operational again? Have you tried wiping/factory resetting with fastboot commands? i.e. fastboot erase userdata or fastboot format userdata.

wahur1 said:
whatever command i use it says OEM unlock is not allowed.
Click to expand...
Click to collapse
Have you tried flashing without unlocking the bootloader?

post-mortem said:
Have you tried flashing without unlocking the bootloader?
Click to expand...
Click to collapse
yes i have tried flashing by giving the fastboot command "flash-all.bat" it starts flashing and it stops in the initial stage by giving error " restarting bootloader" then I get 2nd error " bootloader locked" and process repeats again

toasterboy1 said:
Just throwing out ideas that you may have already tried. If I understand right you cannot get into recovery which eliminates trying to sideload the stock image. Your bootloader is locked and it will not let you unlock so booting into TWRP is out of the question. Are you just wanting your phone operational again? Have you tried wiping/factory resetting with fastboot commands? i.e. fastboot erase userdata or fastboot format userdata.
Click to expand...
Click to collapse
both command not working .. same bootloader locked message.
error message " Please unlock the device to activate this command"

anyone else can help ?

I would contact Google customer support. Even though my phone was out of warranty and I was not the original buyer (bought in eBay), they were willing to make a one-time exception for an RMA. I didn't use it because my phone is rooted and I was afraid of being charged for any repairs. As long as your phone is stock and unrooted, you have a chance. Just say that you think you have a hardware failure and while you understand that they are in no obligation to help, you would appreciate anything they can do.
Sent from my Pixel XL using Tapatalk

Stuck on google logo

Hey there,
I have a Pixel 3a, which refuses to start. After powering on, it directly hangs on the first google logo forever.
The device has stock rom and a locked bootloader.
I can still enter fastboot, but when I try to enter recovery mode from there I'm stuck at the google logo again.
Is there anything left I can do to revive the device?
- I cannot unlock the bootloader, because I need to the check this oem unlock setting which in turn is not possible whithout a working device. Or is there a different way?
- I cannot switch the A/B slot because the device is locked.
- I cannot flash something because the device is locked.
I'm grateful for any advice.

jimgodlike said:
Hey there,
I have a Pixel 3a, which refuses to start. After powering on, it directly hangs on the first google logo forever.
The device has stock rom and a locked bootloader.
I can still enter fastboot, but when I try to enter recovery mode from there I'm stuck at the google logo again.
Is there anything left I can do to revive the device?
- I cannot unlock the bootloader, because I need to the check this oem unlock setting which in turn is not possible whithout a working device. Or is there a different way?
- I cannot switch the A/B slot because the device is locked.
- I cannot flash something because the device is locked.
I'm grateful for any advice.
Click to expand...
Click to collapse
Hi there.
A couple of questions first:
Does it respond to any adb or fastboot commands?
Does it enter into Recovery or Rescue mode from Fastboot?
If yes, then your best bet is either https://pixelrepair.withgoogle.com/ or https://flash.android.com/
Both tools should work even with a locked bootloader, you just need Chrome and the USB driver.
Be warned tho, both tools will erase and factory reset your phone.