Questions tagged [bootloader-lock]
Some bootloaders are locked by the manufactures to prevent the phones from booting unofficial firmware images.
258
questions
2
votes
1
answer
4k
views
Possibility of Hard brick with unlocking boot-loader and installing Custom ROM
My android device CPU is MT6592 (8xARM Cortex –A7@1664 MHz) with instruction set 32-bit ARMv7. Board and product is ht1_107a_iball_mjk. Apart from this, Codename is REL, Internal Memory is 16GB and ...
1
vote
1
answer
29
views
Google Pixel with Android 15 Beta, can't unlock bootloader
I have a Pixel 7 Pro that is enrolled into the Adroid 15 beta program, and in developer options, "OEM unlocking" is greyed out so I can't unlock the bootloader.
Is there a way around this?
1
vote
1
answer
17k
views
How to work around "Your device does not qualify for bootloader unlocking" on Motorola devices?
I've followed the guides, but Motorola is telling me that I can't unlock the bootloader, so I'm blocked with
sudo ./fastboot flash recovery twrp-3.0.2-0-surnia.img
(bootloader) has-slot:recovery: not ...
1
vote
1
answer
3k
views
How do I turn on OEM on a Samsung Galaxy A03s (Tracfone, SM-S134DL) device?
I'm trying to root Samsung Galaxy A03s (Tracfone, SM-S134DL) with Magisk and can't get it to work without the OEM on in the developers option.
How do I turn on OEM?
1
vote
2
answers
3k
views
Can't unlock bootloader or go to download mode in Samsung Galaxy M11
I have Samsung Galaxy M11 (SM-M115F/DS). I want to install TWRP in it. But I can't unlock the bootloader or go to download mode. I already enabled OEM Unlock.
I saw on some sites that on this device I ...
2
votes
2
answers
3k
views
Missing OEM unlock toggle on Samsung Galaxy S9
I've found numerous guides online on how to fix the missing OEM unlock toggle on Samsung Galaxy S9 (SM-G960U) running Android 10. I've been able to follow all steps except for the last one before ...
0
votes
0
answers
1k
views
How can I root my Lenovo Tab 4 10 (TB—X304L)?
I've been trying to root my Lenovo Tablet for past few weeks and I've got no success.
I found out an article in XDA showing how to root it but when I tried I got stuck in the third step which was ...
0
votes
1
answer
174
views
Samsung Galaxy A12 won't show OEM unlocking option
I have a Samsung Galaxy A12. In the Developer options, OEM unlocking cannot be found.
I have tried various guides and they all boil down to change the date and reboot the system. I have tried this ...
2
votes
1
answer
903
views
Pixel 8 'OEM unlock' greyed out
The phone is a brand new phone that was provided by my carrier in Canada (Telus). The phone is carrier unlocked. I verified this by putting a non Telus sim into it and making a call.
Once the "...
4
votes
1
answer
1k
views
Can a firmware upgrade take away the ability to unlock a bootloader?
Historically I've always unlocked the bootloader on my phones (and installed a close to AOSP ROM and made use of root access) - however - and I bristle at the thought - I am almost at the point where ...
0
votes
1
answer
450
views
Unlock Unisoc bootloader on Linux
I need a Linux command to unlock my Unisoc bootloader using modified fastboot.
The command ./fastboot devices keeps telling me permission is denied.
joseph@penguin:~/modified_fastboot$ ./fastboot ...
0
votes
0
answers
404
views
Cannot change OEM unlocking
I recently installed a Pixel Experience Custom ROM on my phone. After that, for some reason, I decided to block flashing on my phone and this caused message to appear every time I boot my phone: Your ...
3
votes
0
answers
142
views
Security risk of purchasing Android phone with unlocked boot loader but using/flashing known good firmware?
(If its easier for the question, we can assume a non-ancient version of Android - say Android 12 or newer)
I am aware that running an unlocked boot loader can allow hacked firmware to be run on the ...
0
votes
0
answers
428
views
How to unlock bootloader of my vivo v20 pro or how to root it
how to unlock bootloader on my vivo v20 so that i can compile and install a new rom. Cause I find no websites to download custom rom for vivo devices
device --- VIVO V20 PRO
Running OS --- Funtouch OS ...
0
votes
0
answers
95
views
Is the Pixel 7a GWKK3 is a locked or unlocked phone?
I've tried to find if my new Pixel 7a GWKK3 is locked or unlocked by looking at its box. I have not opened it yet.
I could not figure out for sure if i can open it and install grapheneos on it.
Do you ...
1
vote
0
answers
668
views
Samsung Galaxy A23 stuck on Download Mode; cannot verify vbmeta image after I tried locking the bootloader
I am using a Samsung Galaxy A23. I noticed my phone's bootloader was unlocked, so I tried to lock it while in download mode. But it is stuck there and gives an error verifying vbmeta image.
Please ...
0
votes
0
answers
441
views
How do I root my Sonim XP8?
I'm working on rooting a Sonim XP8. This is a pretty obscure device, so it isn't easy to root. A lot of the normal options (fastboot, rooting apps, etc.) don't work because it's a pretty locked-down ...
0
votes
1
answer
714
views
I can't start my Moto G60 anymore after locking the bootloader
I recently downgraded my Android on Moto G60 (I downloaded ROM from some websites) because my phone screen was sometimes not working which upon locking and unlocking the phone made the screen work ...
2
votes
1
answer
7k
views
`fastboot oem unlock` results in unknown command (Alcatel 1s)
I have an old Alcatel 1s (5024d) with Android 9 and I wanted to try my hand at rooting it. I've been following a tutorial that's supposed to let me flash a boot.img patched by Magisk Manager.
I've ...
0
votes
0
answers
16
views
Issues Rooting a Huawei Mediapad T1 10 [duplicate]
I have a Huawei Mediapad T1 10 (model T1-A21w) that I want to root since it has a modified old EMUI; i'm trying to install a basic Android 4 or wharever.
I've tried with MTKroot already and manually ...
1
vote
1
answer
3k
views
Rooting carrier-locked Pixel 7 Pro
Just under a year ago, I changed carriers due to carrier unlock policies. The provider I switched to I was able to get the Pixel 7 Pro on a payment plan (2 years). With it being a Pixel, I thought at ...
2
votes
1
answer
4k
views
Unlocking (Xiaomi) Redmi 9A without a Windows PC
Xiaomi provides a tool for unlocking their phones called "Mi Unlock" but only runs on a Windows PC. I only have access to Mac (both Intel and ARM64) and Linux. I don't have Windows.
I ...
0
votes
1
answer
601
views
How to check if used Samsung Galaxy S23 has original bootloader, firmware, and software?
I bought a used Samsung Galaxy S23 from a large online seller. How can I check that all the software and firmware is original and not tampered with?
I already did a factory reset from the settings ...
0
votes
1
answer
624
views
Can't unlock Pixel 6's bootloader
I have no problems finding my Pixel 6 through adb. Also, no problems finding the device with fastboot devices while in fastbootd. But for some reason, when I switch to bootloader, the computer doesn't ...
0
votes
0
answers
771
views
Can't unlock bootloader after `fastboot oem lock` on Xiaomi
I have owned a Xiaomi Redmi 9 for a while now and I have a problem. A short time ago, I locked the phone's bootloader to make it like new, and it was a serious mistake. I bought a new mobile and ...
0
votes
1
answer
2k
views
How to unlock bootloader of Vivo Y33S - 'Waiting for device' error
I'm facing some challenges with unlocking the bootloader of my Vivo Y33S and could really use some assistance. I have tried a few methods, but I'm encountering two specific issues:
The MTKclient ...
0
votes
0
answers
544
views
How to secure an unlocked Bootloader after installing custom ROM?
To install a custom ROM, we obviously need an unlocked bootloader. But after installing a custom ROM, is there any way to password protect or secure the bootloader so that if the phone gets stolen or ...
0
votes
0
answers
563
views
Pixel 4 OEM unlock impossible?
My new Pixel 4 just arrived, and I want to install LineageOS on it. Problem is, the OEM Unlock toggle is disabled (greyed out).
It's not a carrier-locked device or anything like that (purchased from a ...
1
vote
0
answers
661
views
Motorola Moto G200 brick with error "No valid operating system"
I need help with Motorola Moto G200 whose bootloader stopped working after a bad overclock using the KonaBess app. I have tried to turn it on by myself, and I have even taken it to a technical service,...
1
vote
1
answer
540
views
unlocking bootloader in ZTE blade 7 lite
i installed all drivers and also extracted adb and fastboot in my system so i enter "adb reboot bootloader" code in cmd after changing into adb folder and then when i enter "fastboot ...
2
votes
0
answers
429
views
"< waiting for any device >" message, when I try to unlock bootloader on Moto g(9) plus
I want to unlock the bootloader on my Motorola Moto G9 Plus to install TWRP recovery, so I setup ADB and Fastboot on my PC, Enable USB debugging and OEM Unlock on my phone, connected it to my PC, ...
2
votes
1
answer
4k
views
Cannot unlock bootloader on Vodafone Smart Mini and Huawei P8 Lite
I am trying to install Ubuntu Touch on Vodafone Smart Mini 7 (Android 6.0). I followed the instruction from the Ubuntu official site and when I hit sudo fastboot oem unlock, and press the UP volume ...
0
votes
0
answers
28
views
Huawei, 'OEM unlock' missing from developer options [duplicate]
I want to unlock the bootloader of the Huawei phone. There is no 'OEM unlock' in the dev options.
When I go into bootloader: fastboot flashing unlock I get a message "command not allowed".
...
0
votes
0
answers
668
views
I cant flash a phone because it's locked
I cant flash my cousin's phone because it's locked and it keeps saying "erase is not allowed in locked state"
it's a POCO X3 pro and it got bricked for no reason so I tried everything, and ...
2
votes
0
answers
1k
views
Pixel 3 XL Verizon unlock bootloader. OEM not highlighted in developer [duplicate]
My Pixel 3 XL was using OS 11 Verizon. Without asking, it updated to OS 12.
Ever since my system app keeps crashing, it will not stay connected to the internet and overall, ruined the phone. Being ...
1
vote
1
answer
3k
views
How to get fastboot identifier token to unlock bootloader on HTC One M9 where Android is no accessible?
I want to revive an old HTC One M9 rotting in my grandmothers locker for some years. I would like to flash the phone with a custom ROM but unfortunately it is locked,
so I can't access Android.
...
2
votes
1
answer
879
views
Factory reset when enabling and disabling OEM Unlock in one session?
I accidentally enabled "OEM Unlock" on my old Pixel 3a. I instantly disabled "OEM Unlock" again. Will the phone forcefully factory reset when I reboot?
4
votes
0
answers
540
views
How to ensure a device will allow me to OEM unlock it, so that I can install a custom ROM to it when I have the IMEI?
I'm about to buy an Android phone from someone in my area. He already told me the IMEI. How can I ensure that I can unlock the bootloader ("OEM Unlock") prior buying the phone?
I've heard ...
5
votes
1
answer
167k
views
How to unlock bootloader on samsung devices?
Before you try to install any custom ROM on your device, you need to unlock the phone’s bootloader, which is a code executed before any OS (operating system) launch. The notion of a bootloader is ...
0
votes
0
answers
2k
views
How to generate the key to unlock bootloader to unlock OEM
I want to install Lineageos on my Nokia 6.1 Plus.
Info
But I understood Nokia is not supporting officially
I cant see OEM unlocking: Allow the bootloader to be unlocked is DISABLED in developer's ...
0
votes
1
answer
4k
views
Fastboot Device not Detecting my Device
I'm following this tutorial about how to unlock bootloader on Moto. My device is a Moto G5, and my computer has windows 10.
On the command line, I can type
adb devices
and it returns my device. I ...
1
vote
1
answer
34k
views
Enable OEM unlocking and unlock bootloader on an HTC device [closed]
Recently I bought HTC Desire 530 phone from the Facebook Marketplace and have been tricked with a demo phone. It's a new phone, not even a scratch, but i demo keeps popping up every 30 seconds. I want ...
2
votes
0
answers
2k
views
What does "Enable OEM Unlock" do, and how can I do it through a root shell?
Looking at this Samsung Galaxy A8 question, I was looking to do something on my Nexus 6p. I would like to enable OEM unlocking, the developer setting. Due to the problems my device is experiencing, ...
2
votes
0
answers
17k
views
Cannot flash Moto G3 2015 due to "Preflash validation failed" error
I have a Moto G3 XT1550 phone. I had to reset the phone as its UI was restarting on its own after 1-2 minutes of usage. After the phone booted, it asked me to enter the GMail and password the phone ...
1
vote
0
answers
353
views
Can't unlock my Acer B3-A30 tablet's bootloader
So I have an Acer Acer B3-A30 tablet, which is stuck on the Acer logo.
I'm trying to unlock it's bootloader (with fastboot mode), so I can reflash it (with a stock rom), but it just shows an error ...
1
vote
1
answer
4k
views
Unlock bootloader or flash TWRP with EDL on Xiaomi Redmi Note 3 Pro (kenzo)
I have a Xiaomi Redmi Note 3 Pro (kenzo) phone with a locked bootloader. Earlier, I unlocked this, but I do this with an easy switcher tumbler "OEM-unlock", so I flashed TWRP, custom ROMs, ...
0
votes
1
answer
1k
views
Does disabling and removing Knox solve RMM OEM missing in developer options?
I bought this Samsung Galaxy M12 (SM-M127G/DS, Exynos 850, 6000 mAh battery, India version) about 11 days ago. Since then I have been dealing with this RMM state issue, struggled to find a way for OEM ...
0
votes
1
answer
390
views
Xiaomi Redmi Note 4: unable to acquire unlocking bootloader permission
I've created a MIUI account through my Redmi Note 4 and applied for permission to unlock the bootloader through the official Xiaomi unlocking link.
The problem is that after I enter my phone number so ...
2
votes
0
answers
2k
views
Google Pixel 2: Is it possible to verify that it cannot be OEM unlocked and why?
Background
Apparently, I have bought yet another brand new phone that is absolutely useless and has a value of zero.
It is a Google Pixel 2. I would like to OEM unlock it. This option is greyed out in ...
1
vote
0
answers
1k
views
Relock bootloader - "FAILED (remote: unknown command)"
I'm getting rid of my Sony XZ2 Compact. I just flashed the original firmware using Emma and now I'm trying to relock the bootloader.
I've tried running fastboot oem lock and fastboot flashing lock ...