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After flashing recovery I tried to relock my device after relocking my device not starting (only blinking) later unlocked my bl device automatically start up.
flashtool and reflashing ftf firmware and power on phone and done
No I cant lock bl after flashing recovery. I need super su and drm fix so after flashing recovery I tried to lock my device. Device is not booting
Later unlocked my device normal booting. I need ota updates so I need to lock my device and also I need recovery so plz help me(senior members)
divakarhero said:
No I cant lock bl after flashing recovery. I need super su and drm fix so after flashing recovery I tried to lock my device. Device is not booting
Click to expand...
Click to collapse
Maybe you have to choose between root and locked BL? Read this:
https://source.android.com/security/verifiedboot/
I can't say more because I never tried to lock again my XA (useless?).
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.
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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.
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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?
Click to expand...
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
I unlock the bootloader to install twrp and magisk, it's possible to lock the bootloader again without problems or the phone don't boot?
Toni Moon said:
I unlock the bootloader to install twrp and magisk, it's possible to lock the bootloader again without problems or the phone don't boot?
Click to expand...
Click to collapse
Locking you bootloader while TWRP and Magisk are installed will give you a guaranteed brick. Use a Fastboot Rom to return to stock, then you can lock it
If you want to keep TWRP and root, do not lock the bootloader. As the user mentioned above, you'll brick your device.
if i flash stock rom, than is that ok to lock the bootloader ? and how to lock it ?
majidshahab091 said:
if i flash stock rom, than is that ok to lock the bootloader ? and how to lock it ?
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Click to collapse
If you flash a full stock rom then yes. All you do is use the fastboot rom we talked about earlier, let the phone boot up (don't bother completing the setup process, just let the phone boot up), restart to bootloader, and use the following command from the command prompt on your pc:
Fastboot oem lock
It will give you a menu on your pone asking if you want to lock the bootloader. Tell it yes. It will then lock the bootloader, factory reset the phone, and then boot up normally with the bootloader locked. It's that easy.
ok thanks.one question. is that important to flash the stock rom using fastboot only ? or can i flash it using twrp ?
majidshahab091 said:
ok thanks.one question. is that important to flash the stock rom using fastboot only ? or can i flash it using twrp ?
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Click to collapse
I did it through twrp, worked just fine. Make sure to wipe beforehand though, don't want to risk bricking your phone
majidshahab091 said:
ok thanks.one question. is that important to flash the stock rom using fastboot only ? or can i flash it using twrp ?
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Click to collapse
Doing it with a Fastboot Rom will guarantee that things needing wiped will get wiped. When returning to full stock I will always recommend the Fastboot Rom just because of how it completely handles everything it does flawlessly. I imagine flashing a full rom in TWRP will work but I have never tried to return to stock this way
i did try stock using twrp and it was perfect
I have unlocked bootloader but in the end NOT installed TWRP or root (just wanted to test if i can live without it and still be able to install without wiping everything)
Now I just want to lock bootloader again for selling device.
Can I do so with simple fastboot command "fastboot oem lock" without bricking phone?
TaranQ said:
I have unlocked bootloader but in the end NOT installed TWRP or root (just wanted to test if i can live without it and still be able to install without wiping everything)
Now I just want to lock bootloader again for selling device.
Can I do so with simple fastboot command "fastboot oem lock" without bricking phone?
Click to expand...
Click to collapse
Use msm download tool to be sure. It will however wipe all.
TaranQ said:
I have unlocked bootloader but in the end NOT installed TWRP or root (just wanted to test if i can live without it and still be able to install without wiping everything)
Now I just want to lock bootloader again for selling device.
Can I do so with simple fastboot command "fastboot oem lock" without bricking phone?
Click to expand...
Click to collapse
You can, but if you are selling the phone I would still use a fastboot rom just to be sure everything is wiped and no data sensitive to you is being sold along with the phone.
Thanks a lot for the shared info here. This is just what I need and had been asking myself for quite some time now.??
So never lock bootloader with twrp and magisk installed.
Hello , I flash pixel experience 10 latest version. After that I need to back stock miui 11
So, I use miflash with clear and lock
Now after Finishing it boot with System destroyed...
After that I unlock bootloader it boot again .. now m on unofficial pe rom ..plz any one help 5o get miui 11 with lock bootloader....
[email protected] said:
Hello , I flash pixel experience 10 latest version. After that I need to back stock miui 11
So, I use miflash with clear and lock
Now after Finishing it boot with System destroyed...
After that I unlock bootloader it boot again .. now m on unofficial pe rom ..plz any one help 5o get miui 11 with lock bootloader....
Click to expand...
Click to collapse
Unlock again with mi bootloader unlocker
[email protected] said:
Hello , I flash pixel experience 10 latest version. After that I need to back stock miui 11
So, I use miflash with clear and lock
Now after Finishing it boot with System destroyed...
After that I unlock bootloader it boot again .. now m on unofficial pe rom ..plz any one help 5o get miui 11 with lock bootloader....
Click to expand...
Click to collapse
Unlock the bootloader, Install a Custom Recovery and then clear the partitions, once that's done flash MIUI.
Also make sure to check our the PE forum for any precautionary measures before flashing back to MIUI.
[email protected] said:
Hello , I flash pixel experience 10 latest version. After that I need to back stock miui 11
So, I use miflash with clear and lock
Now after Finishing it boot with System destroyed...
After that I unlock bootloader it boot again .. now m on unofficial pe rom ..plz any one help 5o get miui 11 with lock bootloader....
Click to expand...
Click to collapse
Did you found out any solution?
mrstarnge said:
Did you found out any solution?
Click to expand...
Click to collapse
I think unlock Bootloader again using mi unlock tool..... it unlock instantly in my case
[email protected] said:
Hello , I flash pixel experience 10 latest version. After that I need to back stock miui 11
So, I use miflash with clear and lock
Now after Finishing it boot with System destroyed...
After that I unlock bootloader it boot again .. now m on unofficial pe rom ..plz any one help 5o get miui 11 with lock bootloader....
Click to expand...
Click to collapse
Unlock the bootloader again and try to flash the Chinese stable rom if you're still having trouble..you can also try to flash the Chinese firmware..
No one can lock the BL again if u flashed PE and Hentai OS unless fastboot rom is flashed via edl. If u never installed PE and Hentai then u can lock it again.
Relock bootloader
Anyone can relock the bootloader after returning from any android 10 based rom except pixel experience and hentai os
Cuz both these two roms use another type of encryption format known as metadata encryption
But still, if you wanna relock then,
You can try a method which I m telling you
Procedure:
Flash miui 11 from custom recovery
Then flash stock recovery and vbmeta image
Then again clean flash miui11 via fastboot method with clean all and lock option enabled
Hope this method will works for you
Hi, I have reverted back from Oxygen OS ROM to MIUI 12 and locked my bootloader. Below are my steps that gave me the desired result
1. Flash miui 11 from custom recovery
2. Then flash stock recovery and vbmeta image
3. Now boot device into fastboot mode and connect to PC
4. Download and extract platform tools folder
5. Launch a powershell / CMD window in the platform tools folder by holding SHIFT+RIGHT CLICK
6. Now first run the command - "fastboot devices" to make sure device is detected
7. Now run the command - "fastboot oem lock"
That's it device will reboot and is now locked. Note that your data will be erased and you need to setup everything again
Wil this method will work for me if I flashed pixel experience rom before?
Tried all methods mentioned above still no luck stock rom has some problems like cts fail and device isn't certified in play store if you keep your bootloader unlocked . Everytime i try system gets destroyed.
Bootloader problem
try mi bootloader Unlocker tool to unlock it opens
In my case it worked
It seems like locking bootloader with custom ROMs installed bricks the device.
Fortunately you can still unlock it with the Mi bootloader unlocker.
Hi friends, I own one Asus Zenfone max pro m1 and I recently wanted it's bootloader to be unlocked and I tried the unofficial method but didn't worked. So I chose the official method. It wasn't a good experience because I was successful after several attempts. Don't know why... But after installing and unintalling and then reinstalling the unlock tool several times somehow I managed to unlock the bootloader. Now it's showing fastboot mode instead of csc fastboot so I believe it's bootloader is unlocked.
But as I tried to flash twrp using Bugjaeger app from another phone(since I think I'm having issues with usb 3.0 port on my lap) it's showing "Flashing not allowed in Lock state".
How can I be sure to know if my bootloader is unlocked or not? And whatif I flash rom directly(using adb/fastboot) without twrp with Corvos OS? Will O be stuck on a boot loop?
I finally came to solve my problem by trying to unlock the bootloader again and again by official method. And after 3 attempts it was succesfully unlocked (unlocked properly). I could flash twrp without any difficulties and Im on Abhix Rog version now..