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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Mi A3 only boots into fastboot

My Mi A3 is only booting into fastboot mode and when i try to flash something with adb-fastboot tools like twrp it only loads fastboot when i press the key combo. I've tried changing the a and b but ...
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how to re-install TWRP from Linux?

Android version: 4.4.3 HTC Sense version: 6.0 software number: 2.23.661.2 HTC SDK API level: 6.25 kernel version: 3.4.0-g52343b3 and @ABM105 #1 ...
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How to use fastboot to flash stock Android ROM using Ubuntu

I know I can use fastboot flash recovery recovery.img to flash a custom recovery (In Windows). I managed to brick my phone in the process of installing custom mobile OS. So I'm starting over. I've got ...
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fastboot detects phone in the fastboot mode but not when phone is on

I'm trying to flash a custom recovery image with fastboot flash recovery recovery.img but it can't find the image, hence I'm powering it on and getting into location where the image is to execute the ...
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Recompile kernel: no errors but it doesn't work

I'm a beginner, and at the moment I'm trying just to repack original boot image. I've discovered that boot partition is on the "/dev/block/mmcblk0p7", so I pulled it with adb pull /dev/block/mmcblk0p7 ...
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/data's data is garbled in TWRP. How to decrypt

So this is quite another android story but I promise to keep is as short n dry as poss. The issue was some of my Apps weren't able to access /extsd folders with non root & so I deicided to give ...
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is it possible to delete a file from system folder without being root?

I found this file: /system/recovery-from-boot.p and I've read this is preventing me from entering in the recovery mode, but as I'm not root, I can't find a way to delete it or rename it...any ...
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Recovering files after unlocking bootloader [duplicate]

I'm following this tutorial (sorry, it's in Spanish, if you need more info, let me know) and, as you can see the bootloader step is before the security copy step. I went to the details of that ...
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Samsung C5 Pro Black Screen

Model: Samsung Galaxy C5 Pro Issue: Phone Starts and home button and led lights works. But no display. I was suspecting Black Screen of Death scenario and trying remedies for that. Problem is I am ...
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I have been trying to unlock the bootloader on my Nokia 3.1 (TA-1074) in order to root my phone but can't unlock it

I can get into the menu to unlock it (see below) at which point neither of the volume buttons work as inputs Screen Display Unlock bootloader? If you unlock the bootloader,you will be able to ...
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how do i flash gapps onto aosp android 10 without custom rom, and how do i fix my ussd and call function not working?

i recently managed to flash gsi using fastboot instruction: fastboot flash system system-quack-arm-aonly-vanilla.img from https://github.com/phhusson/treble_experimentations/releases/tag/v213 they ...
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CoolPad Surf -fastboot/adb/shell

Specifically I have the T-mobile version. You can currently get one for free from T-mobile Test Drive. Makes it an interesting device to play with. Curious if anyone has any thoughts on getting ADB ...
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How to install ROM and Gapps through Adb & Fastboot without TWRP support?

I have a Motorola One Macro, I leave the firmaware for you to see what it is, https://mirrors.lolinet.com/firmware/moto/lima/official/ I want to install a ROM according to this site: https://www....
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fastboot connection problem

I am trying to install Lineage OS 16.0 on my Moto 4X. I unlocked the oem bootloader. But when I enter the command 'fastboot reboot bootloader' it shows '< waiting for any device >'. There it stays ...
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Download and fastboot mode Alcatell 7

How do i go into fastboot mode on my Alcatel 7 6062W? Ive tried holding power and volume down. Holding power and volume up. Holding power and Volume up and volume down buttons. Every single key ...
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Cheap phone disabled flashing with mispelled error message

I have an 'Advanced A4 2019' phone from BLU, and it's known to have spyware. I wanted to flash the phone's recovery with TWRP to install a custom ROM, but I can't seem to enable flashing. It runs ...
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Is there any way to recover from an over-written android system recovery, or what else might cause a Pixel XL not to enter fastboot from recovery?

This is an attempt to sideload an update to a Google Pixel XL stuck in a boot loop. Following this answer from the official Google forums, I tried this procedure as linked in the chosen answer. ...
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This device is corrupt and can not be trusted or boot Moto Z2 Force

I plugged in my phone today and it turned off, turned back to being corrupt, everytime i try the fastboot oem get_unlock_data it never works and I have tried multiple times on different applications, ...
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Unable to root Motorola g7 Power

I have unlocked the bootloader and enabled USB debugging. I can launch TWRP over fastboot and use the interface. To root the phone, I tried the following: Push the TWRP zip onto the device adb ...
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fastboot oem off-mode-charge 0 Ressetting back to “1”

Using "Gzosp-rolex-riva-8.1.0.Stable.1.0-UNOFFICIAL-20180622-1133" on "Redmi 4A" Upon Using fastboot oem off-mode-charge 0 its working for ONE TIME only, Once the phone powered on, its getting back ...
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Cannot unlock Motorola C following the instructions from Motorola

I have: Created an account with Motorola Enabled developer mode Enabled "OEM unlocking" Enabled USB debugging Disabled the lock-screen PIN I then connected the device to my PC with a USB cable and ...
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Are there (developer) tools to remove files from Android “Rom” cache, if the smartphone doesn't start properly?

(I have also asked on stackoverflow, as I assume the use of developer tools is neccessary, but I would be very glad to get any working help on here also. The Google Photo App filled up the 16 GByte "...
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Why can I still not receive OTA updates after flashing stock firmware on my Moto G7?

After purchasing a Motorola Moto G7, I rooted it using TWRP and Magisk. After a few months of having it rooted, I decided to undo the process in order to restore the ability to receive OTA updates. ...
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Fastboot flash FAILED (Write to device failed in SendBuffer() (Unknown error))

I'm having problems flashing using fastboot and get the following error I think there is something wrong with my computer as I have tried on another computer and it works just fine there. I haven't ...
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Google Pixel Bootloader unlock

I have a pixel phone struck in boot loop (just show google logo and restarts)! I didnt enable oem unlock and usb debugging ! I want to unlock the phone to reflash the phone! My Recovery also dont ...
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Asus Zenfone Max Pro (M2) forced into CSC Fastboot Mode

I have Asus Zenfone Max Pro (M2) running on Android 8.1 Oreo and it was working fine, no viruses, no malware. When I was playing a game on the phone, I put it on the side, then I went to play a game ...
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How to create without sparse flashable.img through adb shell?

Created an image of /system/ by the command dd bs=4k conv=sync,noerror if=/dev/block/mmcblk0p21 of=/sdcard/system.img it created a 2.2 GB file when i flashed it by command fastboot -S 500M ...
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Fastboot Format question

I'm trying to format /dev/block/platform/soc/1da4000.ufshc/by-name/frp but fastboot errors with FAILED (Command length to RawCommand() is too long). Any ideas anyone?
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687 views

“fastboot set-active” command fails

I'm trying to flash a custom ROM on my Xiaomi Mi A3. When I flashed the ROM using TWRP and rebooted my phone, it got stuck on fastboot mode, won't even boot to recovery. I found a friend with a ...
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331 views

Phone stuck on bootloop after twrp flash by fastboot

I own a symphony v32 phone (5 1.1 lollipop) with mt6580 chipset. The other day, I downloaded an unofficial version of twrp recovery from https://unofficialtwrp.com/twrp-3-2-3-mt6580/ I did exactly ...
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Nokia 6.1 stuck in “Download mode”

One day my Nokia 6.1 goes into "Download mode" and rebooting doesn't help. Flashing TWRP doesn't work: $ fastboot boot twrp-3.3.1-0-PL2.img downloading 'boot.img'... OKAY [ 1.235s] booting... ...
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215 views

How to install a firmware without losing your data and restore the previous one in case it goes wrong?

I have a OnePlus 5T and I can't install OTA updates anymore because my firmware is too old. In addition to that I don't have a full backup of my device because I'm using encryption and TWRP doesn't ...
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How to enable debugging in ASUS Zenfone Selfie Pro 4 without seeing the screen (touch works BTW)?

[The similar questions are related to other devices and I don't intend to do factory reset.] I cannot see what is being 'shown' on the screen, only interact through fastboot or randomly touching the ...
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Camera2api bottleneck data speed

I have an asus zenfone max pro m2 (ASUS_X01BDA) with Android 9 on it. After I enabled camera2api using fastboot, I was able to use Google cam on it and get better photos but then my data speeds got ...
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Accidentally mklabel'ed the entire disk [duplicate]

So I recently got an old Nexus Tablet for an incredible low price and wanted to use it for Kali Nethunter. The problem was, that the /system partition is too small. So I used adb to transfer parted ...
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fastboot boot TWRP.img Not working

I'm trying to just boot the TWRP image for my OnePlus 5t to then install a custom ROM. So I typed fastboot boot "C:\Users\Elias\Downloads\twrp-3.3.1-0-dumpling.img" and it seemed to work and I got the ...
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How to resolve endless bootloop on Kyocera Hydro VIEW (C6742)?

Does anyone know of any method to access the ADB shell, the bootloader, or fastboot mode on the Kyocera Hydro VIEW while it will NOT boot to the Android OS? Similar to the question here (Optimizing ...
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Using a keyboard to send Volume Up signal to confirm flash on device without volume rocker?

Background I have a tablet that I am trying to fastboot flash a custom ROM on. The problem is this tablet has no volume rocker. In order to flash, fastboot requires you to press volume on the device ...
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How to “fastboot flashing unlock” when device has no volume rocker?

I have a android tablet that has no volume buttons, but has an unlocked OEM bootloader. I'm trying to flash a new rom, and after I run fastboot flashing unlock I am presented with a prompt that asks ...
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209 views

Fastboot stuck on sending system

I feel my old mobile with android 2 or 3 got bricked as it get stuck on boot logo each time but I can easily got into fastboot mode but in fastboot mode I can complete following commands like: ...
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2k views

TWRP ask for password - cant mount data partition

I want to install an open ROM like AospExtended on a new Xiaomi Redmi Note 5 with stock MUI. To avoid issues with Xiaomi's anti rollback mechanism, I'd like to boot TWRP then copy its image and ...
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Xiaomi Mi 9 stuck in fastboot

So, hello there my fellow redditors. Long story short, I think my phone is completely broken. What I did: Unlocked bootloader Flashed TWRP Erased EVERYTHING in TWRP Decided to reboot the phone back ...
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269 views

Can I flash Android on device with overwritten mmcblk0?

Can Android device with fully overwritten /dev/mmcblk0 (without /dev/mmcblk0p* partitions) be still flashed using fastboot? Is it true that overwriting /dev/mmcblk0 does not remove /dev/mmcblk0boot* ...
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Boot loop recovery with access to Download / Recovery modes, OEM / FRP lock enabled

Context: I have a Samsung Galaxy Tab S3. Which, seemingly sudden, entered a boot loop - The Device name and Samsung logo screens will cycle indefinitely until There is no power left or I interrupt ...
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Is it possible to boot into a different recovery from TWRP?

Normally I boot into TWRP with fastboot boot twrp.img Is it possible, after I boot into TWRP with the above command, to boot into a different version of TWRP (from a different image) without ...
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Do we really need `fastboot erase` before flashing a partition?

Xiaomi provides the official images for their phones, which can be flashed by using their flashing tool on Windows. The tool itself seems to do nothing other than providing a GUI for running fastboot ...
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On which partition does the fastboot resides and is it writable?

My original intent is to understand is it possible to brick android mobile beyond repair. It seems logical for the device manufacturer to store the fastboot in a non writable storage area and make the ...
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Sony xperia tipo not going into fastboot mode on prompt

I want flash a new OS onto my so xperia tipo because android 4.0.2 is old and slow so I want to flash a more up to date and lightweight mobile OS. However this requires root and whenever I try to hold ...
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108 views

Unlocking bootloader on HTC Desire 320

I am trying to unlock bootloader on Desire 320, but failing on retrieving the OEM number: $ fastboot oem get_identifier_token ... FAILED (remote: unknown command) finished. total time: 0.004s I've ...
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How to flash Magisk-x.y.z.zip using fastboot without using TWRP?

Is it mandatory to use twrp to flash Magisk. Can it be flashed using fastboot

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