Questions tagged [fastboot]

Fastboot is a protocol used by Android to diagnose and flash new firmware images on an Android devices via USB. It is part of the Android Debug Bridge (ADB).

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Does Heimdall have the option to boot without flashing/substituting the kernel? (like fastboot boot boot.img)

Fastboot has the option fastboot boot Image.gz to boot a kernel without flashing it to the phone. Is there something similar for Heimdall? I did not want to mess with my phone's kernel for now. It's a ...
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How to connect over fastboot to Galaxy A50?

I'm on ubuntu 22.04 and I can connect over adb to my Samsung Galaxy A50, and do adb reboot bootloader it reboots to bootloader mode, but I can't use fastboot devices, it returns empty. Other phones ...
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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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How to Flash Patched_Boot.img via termux?

Is there a way to get termux to process Fastboot cmds or flash a patched_boot.img with out a PC?
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Lenovo Tab P11 erased recovery mode, need to hard reset with computer

I erased recovery_a and recovery_b, Unnofficial TWRP doesn't work. need a recovery that works. Won't boot into twrp and need a hard reset. Can't access OS but fastboot works. HELP!
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Fastboot erase userdata recover deleted files

As per the title I have ran a fastboot erase userdata command on my OnePlus 6T device. It has deleted all of the userdata but there were files which i forgot to pull of prior. Is there still a chance ...
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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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How do I unlock the bootloader of my Honor 20 Lite

I recently tried to unlock the boot loader of my Honor 20 lite but failed, due to Huawei removing the online code request thing. And I thought that this would be the right place to ask. So, whenever ...
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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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Phone is not working and in fastboot device is showing as "???????????? fastboot"

I have a realme 2 pro and I wanted to revert it back to stock rom. I had orangefox recovery installed at the time. I tried flashing an ozip file for the device and just call it my stupidity but I the ...
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Do I need both Xiaomi's official unlock app and vbmeta.img for installing an AOSP GSI?

I have a Xiaomi Redmi Note 11 phone, and I am planning to install an AOSP GSI from treble_experimentations. The documentation for this device in treble_experimentations states that these are the steps ...
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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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Device only boots to fastboot

After turning off the phone . I tried restart the device but it only boots to fastboot. I tried the volume up and power button one but it automatically boots to fastboot. I also tried flashing with ...
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How to wipe cache from Mi Recovery Mode (no root, no OEM unlocked)?

I saturated my phone memory, and while attempting to restart it to delete files, it got stuck on the "Mi" logo. I only have a partial backup. Phone: Xiaomi Redmi Note 5, not rooted, not &...
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Error while unlocking bootloader | FAILED (remote: 'Unlock failed - Err:0xffffffff')

I was trying to unlock the bootloader of an old Redmi Note 4x, Downloaded fastboot and adb. I first enabled developer option and turned on USB debugging. I tried finding OEM unlock option which was ...
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Init services does not start at Boot time

I flashed Patch Boot.img via fastboot after flash device start normally but didn't get Root Access.. When i try to get boot logcat i observed that my device didn't start init services at boot time... ...
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Redmi Note 9 Pro Stuck in boot loop

about 2 days ago my phone completely died (battery) so i plugged it in overnight. when i tried powering it on in the morning it was getting stuck on the MIUI animation, just after the powered by ...
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Fastboot Screen not showing

Some time ago I flashed the stock ROM with LOCKED bootloader. I tried it 3 times but got errors, in the fourth it worked with the stock ROM 9 pie, the same that i was using. Although, the fastboot is ...
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Oppo A73: adb works but fastboot won't recognize the device on either Linux or Windows

I'm badly in need of help with my broken Android device. The XDA community is where I always found most information on those matters so I'm hoping someone can help me out. Some background on ...
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white battery/does not turn on/does not charge

I was using a Xiaomi RedMi 9T (lime), nothing unusual. I left the wifi all over the night and the next time checked, MIUI was updated from 10 to 11. But turned off and its looping at the redmi screen,...
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How use Live boot on Android devices?

I want Live boot a Mobile Linux distribution(for example Mobian) on the Android device. I also have an adb and fastboot and my device is rooted. Is there a way to Live boot on Android? Sorry for my ...
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Can't run `fastboot boot kernel` on Poco M3

I'm trying to boot a kernel without flashing it, on my Poco M3. I already unlocked the booloader and I'm on fastboot mode. Some fastboot commands like reboot work, but for fastboot boot, I did ...
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Pixel 4XL detected in fastbootd but Pixel 6 not detected - fastboot detects Pixel 6 and adb worked w/ Pixel 6 BEFORE flashing attempt

How can I get my Pixel 6 to be recognized in fastbootd??? My Pixel 4XL is detected in fastbootd. I'm using Ubuntu 20.04 LTS. I've tried multiple USB cables including USB to USB-c and USB-c to USB-c. I'...
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Samsung A21s software fastboot is disabled

I have a Samsung Galaxy A21s phone that I am trying to install Android 12 on. I have unlocked the bootloader, I go into the recovery mode and I select bootloader, however when I get there, it is just ...
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How to Reset My realme XT (screen not working) without Usb Debugging and bootloader!

yesterday i was playing around in settings of my real me Xt I enabled OSIE vision effect and also enabled Always on display. After few minutes when i back went to my device it went blank, it lights up ...
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LG Stylus 2 k520DY not going to bootloader and fastboot

I have a LG Stylus 2 k520DY and I want to root it. the problem here is that I can't reboot it to bootloader and fastboot. the adb commands: `adb reboot bootloader` and `adb reboot fastboot` do not ...
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Where are the official Xiaomi drivers for ADB/USB? (trying to unlock bootloader of Poco M3)

I tried everything from every tutorial about how to unlock my Xiaomi Poco M3 bootloader. I enabled OEM unlock, etc, rebooted into fastboot mode, but then the phone is not recognized in the batch ...
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37 views

How to get to fastboot on a corrupted recovery&os tv box

I have accidentally used twrp to flash a bad .img file to the Recovery partition and ever since recovery cannot be booted into via physical means nor would Android boot. Is there a way to boot to ...
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Android OEM Unlock wipe taking too long

Im using Oneplus 3T and when I did fastboot oem unlock now my device is stuck on screen since last 30mins plus "Wiping, please wait" How long one should wait ? any way I can exit this and ...
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Fastboot flash boot (FAILED)

I am using Ubuntu 20.04.3 LTS and when trying to boot into, or flash, the TWRP recovery bootimage image I compiled. I have no additional information on why I got this error. Just flashing twrp ...
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MI Redmi 2 stuck on Black Screen and not booting into Fastboot or recovery mode

sometime ago I installed Linage OS 17.1 on my MI Redmi 2 (1GB) and also resized my system partition to 2.00GB and after some time I faced some auto-restarting problems then I decided to install the ...
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134 views

Xiaomi Redmi Note 8 Pro (Begonia) stuck in a boot loop

Today, after trying to go back from RevengeOS to MIUI, I used TWRP to wipe System, Data, Internal Storage, Vendor, and Dalvik/ART + cache, then flashed stock MIUI, forgetting that it has problems, and ...
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Fastboot doesn't do anything on my device

I've seen similar topics but most of them are on Windows which is commonly solved by updating the fastboot drivers. I'm using Arch, and based on what I've read Linux doesn't even need drivers of any ...
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374 views

How to enable the OEM unlocking option if isnt available in the developer options menu?

Im trying to unlock the frp and the phone , based on kirin 710 and 710A, and there is no OEM Unlock option in the developer menu. It has been issued the commands: fastboot -s usb:1-1 oem device-info ...
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how to get out of select boot mode screen

When I power on my ONN tablet, I come to the "select boot mode" screen. The arrow moves up and down by itself, and I am unable to make a selection. I've changed the power button hardware ...
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1 vote
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129 views

Fastboot recognizes device but unable to flash (stuck with no output)

I'm trying to flash a custom ROM on my Android smartphone using fastboot. When trying to flash the recovery, the command does not output anything and is stuck. ./fastboot flash recovery recovery.img ...
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119 views

No “Enable OEM unlock” option on Meizu M2

I’m trying to set PostmarketOS to my sister’s old phone and now I’m stuck with an interesting trouble: in developer settings there’s no option to allow OEM unlocking. USB debugging is on, tried many ...
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Bootloader for huawei [duplicate]

How to unlock the Bootloader of a Huawei nova 3i device for free. Can't seem to find anything since Huawei stopped giving codes
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1 vote
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118 views

Bootloop and inaccessible recovery mode. Fastboot stops when connected to PC

I have ASUS Zenfone Max Pro M2. I installed Pixel Experience and recently tried to update it, but it stuck in a boot loop. My bootloader is unlocked and the device is not rooted. Also, the Recovery ...
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Recover data from bootlooping phone

The phone is bootlooping and I can only get to fastboot mode. It says PHONE Unlocked, but I can't flash TWRP. How can I recover the data?
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Installing drivers consecutively for all interfaces/ports within an inf file

This concerns an inf file which contain a number of interfaces/ports that need support of drivers. Instead of installing the driver for each interface/port one by one, is there a way to install the ...
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Redmi 9 Prime hard bricked

I will explain every step I took till this point to maybe help explain the situation I ran into multiple problems from today's evening The first was the drivers i guess, I tried to unlock the phone (...
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3 votes
0 answers
5k views

Fastbooot: FAILED (remote: 'unknown command')

I've bee trying to install twrp on my Asus Zenfone Max Pro M1 X00TD. So, first I enabled USB debugging, connected my phone to computer and booted into fastboot by adb reboot bootloader. After that I ...
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137 views

Asus Zenfone Max Pro M1 boots into CSC FASTBOOT MODE instead of NORMAL FASTBOOT

I was trying to install TWRP on my Asus zenfone max pro m1. But each time it boots into bootloader by adb reboot bootloader it leads me into CSC FASTBOOT MODE. First time I ignored it. But when I ...
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Do anybody know how to install twrp in Infinix Smart 2 X5515F

I've been trying to install custom ROM on my device.So first I went to install TWRP. My device is Infinix Smart 2 X5515F. I followed the steps from this website. I'vd downloaded the TWRP file for my ...
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1 vote
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Why is my phone missing "product" partition contained in lineageos distribution?

I have a OnePlus 7T, and am trying to install lineageos on it. The adb sideload method failed, and a forum comment led me to look into doing a manual installation using fastboot as described in https:/...
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Commands failing to write due to protocol error in Fastboot using Linux Mint on ONN 100015685-E

FAILED (command write failed (Protocol error)) Any command I try to run in fastboot fails to write ONN Surf 100015685-E I tried using Windows and kept having problems so I'm trying Linux I'm trying ...
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Why do I get the error "Preflash Validation Failed" when trying to install a ROM on my Moto G8 Power?

I was trying to install an Android 12 GSI with Fastboot, but whenever I try to install the system.img, it always fails with the error: (bootloader) Preflash validation failed FAILED (remote failure) ...
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Can't flash anything with fastboot on onn 100015685-E

I have tried updating drivers from windows update but trying to flash anything does nothing I'm using mediatek drivers Other commands fail and gives this error FAILED (Write to device failed (Too many ...
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2 votes
1 answer
726 views

How to backup a full stock firmware image

I'm rocking a OnePlus Nord 2 5G here that just recently came back from assistance because I had wiped the partitions with the IMEI stored in it... I had made a Nandroid backup, but it didn't backed up ...
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