Questions tagged [bootloader]
for questions on the bootloader, which is kind of "BIOS mode" on Android devices
539
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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 ...
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Can't get Fastboot working [No recovery and OS ] on redmi note 7 how to fix?
So, I was attempting to revert from Android 13 to Android 10. Unfortunately, I forgot to flash the Android 10 version of the Ofox recovery and instead flashed the custom ROM (Havoc) from the existing ...
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Can we mod android phones using custom bootloader, firmware for MSM8909 Snapdragon 210
Can we mod android phones using custom bootloader (sbl secondary bootloader) , firmware for MSM8909 Snapdragon 210 (phone is zte835). Deleting all factory firmware, bootloader and using custom ...
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Blackview BV9900 - Cannot Unlock Bootloader, Stuck In Fastboot Mode
I've been trying to follow multiple potential guides.
The latest one I've tried is this one.
Everything works fine, downloading the Android Platform Tools (adb, fastboot, etc), downloading + updating ...
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Flash avb_custom_key using EDL
As documented here, many bootloaders will allow flashing a custom verity key to the avb_custom_key partition using fastboot. This then allows a custom chain of trust so the device will boot a custom ...
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LG G Pad F 8.0 (UK495) Android 6.0: Cannot Access Bootloader or Recovery
I have an older LG G Pad F 8.0 (UK495). The tablet originally came with Android 5.1 but at some point received an official upgrade to 6.0. My ultimate goal is to hopefully root the device & ...
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Fastboot does not see device, but fastbootd does
My device: Tecno Camon 19 (cl6n)
I need to unlock bootloader, adb see my phone correctly, fastbootd too. But when I do adb reboot bootloader neither the phone nor the PC can see each other. Phone says ...
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Unlocking moto g power bootloader
I have a moto g power (2021) Running Android 11 and I am searching For a way to unlock the boot loader. When I go to the Motorola website and Follow the steps to unlock it The website tells me that ...
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Hard bricked with no bootloader and black screen
I have a redmi 7 onclite hard bricked in EDL mode (9008), my phone got black screen, no bootloader. I would like to know how to fix it. I don't have an authentication account, only a normal account ...
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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 ...
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Creating a backup partition on Android
It would be lovely if I could manually allocate a portion of space to create a partition for backup that's separated from the other partions that gets wiped or replaced when flashing a custom rom so ...
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Why should I update the bootloader when flashing custom ROM?
I have a Realme GT Neo2. The developer behind the custom ROMs says it's required to flash some firmware Firmware_EU_F.04_RM-Warning.zip. Inside the archive, there's an abl.img file which I believe is ...
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Is it possible to rescue data from a Google Nexus 5 which is stuck in bootloop with locked bootloader and no working recovery mode?
I have found my Google Nexus 5 which I had problems with in 2016 concerning the infamous stuck power button. At some point, the phone was stuck in a restarting loop. Then, I managed to leave this loop ...
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Can I connect to Wifi after flashing GSI
My old phone is running Android 10. I wanted to install Android 14 beta on it. Bootloader is locked.
From what I know, unlocking bootloader would reset the device. Therefore Wifi passwords are gone. ...
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Secure boot on with no system
I have bought a cellphone (google nexus 5) and can only boot to bootloader, recovery seems erased since it will only reboot, same for system.
I cannot flash anything since get_unlock_ability returns 0....
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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 ...
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How to make Pixel 4 XL automatically turn on once power is connected? [duplicate]
I am trying to recycle my old Pixel 4xl into a screen for my 3D printer. Since it does not hold a charge anymore, I need it to be able to power on when it gets power from the printer. I tried ...
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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 ...
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User-settable Root of Trust supported devices
As mentioned in Android doc
Devices can optionally allow the user to configure the root of trust (for example, a public key). Devices can use this user-settable root of trust for Verified Boot ...
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Prevent Bypassing Android Verified Boot in custom ROM
Installing custom rom needs unlocked bootloader. so I unlocked bootloader.
I built a custom android 12 rom with AVB enabled for system and boot partitions and flashed it.
if I Installing apk through ...
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Bootloader unlocking not working on Nokia T20
I have been trying to install an Android 13 GSI my Nokia T20 WiFi tablet (Model TA-1392) reached its final update ever. However, in order to flash the GSI onto the tablet, it said that I needed to ...
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How do I root my phone and flash custom software? (Samsung Galaxy Core Prime - SM-G360V)
I've been trying to root an old Samsung Galaxy Core Prime, install a custom recovery, and flash a new ROM. However, I've been having trouble. When searching through developers options (for reference, ...
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fastboot oem unlock showing (remote: 'Unlock operation is not allowed')
I am trying to unlock my Lenovo K8 Plus' bootloader, but as soon as I type fastboot oem unlock or fastboot flashing unlock it says (remote: 'Unlock operation is not allowed'). On the device it says ...
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Android devices's boot process
What is the boot process of Android devices ~ in general? Some information can be found on the internet, but poorly.
Something like this (right?):
ROM, non-reprogrammable, bootloader 1, check next ...
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How executable binary can be signed?
On most Android devices, the bootloader checks following bootloader/software sign, right? Chain of trust. Signing technically means that the file must be encrypt with one (private) key and decrypted ...
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How do I flash a custom kernel on Pixel 7
I built a custom kernel for my Pixel 7, to include the NFS kernel module. I'm struggling to flash this to my phone and get it loading.
After I flash this to my phone, the Google text appears, but not ...
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Are system image and system partition the same thing?
Are system image and system partition the same thing? Are boot image and boot partition the same thing? Been reading about system root and system-less root. On some pages it says you have to modify ...
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725
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Strange message after wiping data/factory resetting on Pixel 6 device
Last night, I flashed my Pixel 6 phone because I want to move to Pixel 7. After flashing, I turned on the phone for a while, and then I used the Recovery >Wipe data/factory reset option. ...
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Stuck on the boot screen with locked bootloader - Pixel 6
I was trying to flash a custom ROM on my phone (Pixel 6) and something went wrong. i was following the instructions on screen and the last one was to lock the bootloader which I did. Now the phone ...
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Relocking bootloader on Asus Zenfone Max Pro M1 (ZB601KL/ZB602KL)
After a few dozen unsuccessful attempts to make TWRP recovery work and almost bricking my Asus Zenfone Max Pro M1 (ZB601KL/ZB602KL), I gave up and decided to relock the bootloader. But this turned out ...
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Can't boot into bootloader on Oppo F1s
I can't get into fastboot mode on my Oppo F1s (A1601), Android 5.1.
Here is what I'm doing:
adb and fastboot are installed on Mac
I have developer options and OEM unlock enabled
In the terminal, adb ...
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1
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743
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Force boot to bootloader (device always boots to recovery)
I was trying to flash TWRP onto my Android tablet (Lenovo TB-X306F), but something went wrong and it failed. Now, every time I boot, no matter what I do (sending adb commands or pressing physical ...
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Can a hacker unlock the bootloader of an android device remotely?
Is it true that you can not unlock the bootloader of an android device remotely and the only way you can infect the firmware or bootloader is to have physical access to the device.
What about rooting? ...
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Bootloader Is Unlocked But Yet Recovery Is Not Flashing (Fastboot Failed error)
I Unlocked My Bootloader And It Is Showing Me In Red Color (Bootloader:Unlocked) But When I Tried To Flash Recovery It Failed.
recovery is device specific so no problem in recovery.
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How do I extract the boot image from my ROM on my phone to modify with magisk? [duplicate]
I am trying to root my phone and I need to extract the boot img from the ROM on my phone preferably using the phone itself. Then I will modify the boot img with magisk.
How can I extract the boot ...
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How To Charge Android Phone In Fastboot (Bootloader) Mode?
My Android Phone Is Not Charging. Bootloader Shows The Warning Battery Low. I Accedentaly Erased /Boot /Recovery /System Partition. And Because Battery Is Low I Can Not Flash Boot.Img And Recovery.Img....
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Compiling Android Bootloader Little Kernel
I have successfully compiled Android bootloader from git://codeaurora.org/kernel/lk.git
It produces a lk.bin file which I assume is the code for the bootloader.
How do I pack that file into a ...
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Choosing correct OTA
Android OS crashed. Error Message
Android Recovery
TCL/REVL_2_5052w/A30ATMO
8.1.0/OPM1.171019.011/VAR4A-0
user/release-keys
Think that means 8.1.0 = Oreo API level 27
https://developers.google.com/...
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How to recover files from a Pixel 3 XL that cannot boot anymore
My Pixel 3 XL is up-to-date regarding the OTA updates i.e. I have the latest firmware installed.
I've never done anything special regarding "tweaking", such as enabling the developer mode i....
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Is it possible to dump the internal storage of an unrooted, boot-looping Android 9 with locked bootloader?
Is it possible to dump the internal storage of an unrooted, boot-looping Android 9 with locked bootloader via USB or to SD card, e.g. using some firmware tool in download or recovery mode?
If YES, ...
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Pixel 3 stuck in fastboot loop after flashing factory image
The problem
After trying to flash a factory image of Android to my (previously working) Pixel 3, I can now no longer exit the bootloader, nor can I boot into the system. The bootloader simply reads no ...
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My motorola 5g stylus updated and the keyboard for logging in is gone
My information is as follows. My keyboard is the default keyboard. I disabled gboard. The update was last night. I was not logged in when I clicked update, (it was a security update, I turned it on ...
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219
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Can't relock bootloader
So i'm trying to relock my bootloader after unlocking it. I have a Realme 5 pro and i tried relocking it using adb and fastboot flashing lock but it gives me the following error:
FAILED (command write ...
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Cannot Unlock Bootloader on Fairphone 4
I have been attempting to install /e/ OS on a Fairphone 4 in accordance with these instructions: https://doc.e.foundation/devices/FP4/install and I am stuck on Step 6 of Unlocking the Bootloader. No ...
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Failing to flash custom (Magisk-patched) boot.img to Samsung S20 FE (4G) with Heimdall
I am attempting to flash a Magisk-patched boot.img from Linux onto my unlocked SM-G780G. I have so far tried doing that using fastboot flash ... to which the device responded that it doesn't know the ...
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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 ...
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Backup Pixel 3 before erasing phone with TWRP
I am attempting to take a recovery/backup of a Pixel 3 using TWRP. I do not need to flash TWRP, just boot from it to perform the backup. Meaning, I don't care if TWRP is installed permanently.
The ...
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524
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Huawei MediaPad T5 (AGS2-L09) stuck at TWRP
I unlocked bootloader on Huawei MediaPad T5 (AGS2-L09).
Then I put TWRP on it and everything was fine until I installed UPDATE-SuperSU-v2.46.zip using TWRP. After that the tablet stuck at Huawei ...
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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 ...
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unlock password screen for htc m8 steps
I have an HTC M8 that is password screen locked. I'm tryin to save the data on this phone. Can't get into settings cause its locked. Tried to install Twrp fastboot but can't I think because usb ...
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