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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15 views

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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50 views

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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56 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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163 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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87 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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51 views

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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19 views

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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56 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 flashboot without using TWRP?

Is it mandatory to use twrp to flash Magisk. Can it be flashed using fastboot
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Fastboot: failed flashing (remote: size too large)

I'm flashing a GSI image using fastboot. After entering fastboot flash system system.img I get this: E:\AndroidSDK\platform-tools>fastboot flash system system.img target reported max download size ...
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117 views

Bootloop after flashing TWRP (Also lost recovery)

So I was going to root this (previsouly healthy) BQ A4.5. Unlocked the bootloader and flashed TWRP from here: $ fastboot oem unlock (bootloader) Start unlock flow OKAY [ 32.954s] Finished. Total ...
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How to unlock teclast p80x bootloader?

In the Developer menu, I have enabled "Unlock OEM". I run the following commands in adb, and get the following errors: fastboot flashing unlock = FAILED (remote: 'Not implemet.') fastboot: error: ...
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Encryption failed after turning my android phone on

when i turn on my phone it shows "Encryption failed" and "Unable to start up your device. the encryption process was interrupted. you need to reset your device to factory default setting. this will ...
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509 views

Pixel 3 stuck in Fastboot mode with “no valid slot to boot” when trying to install factory image

I was trying to install the factory software image from https://developers.google.com/android/images#blueline on my Pixel 3. I downloaded the image as well as the platform-tools with adb and fastboot. ...
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232 views

How to use setprop via adb shell in recovery?

I messed up flashing a beta Android Q build on my phone. After that, I can't flash my stable ROM without error 7 in TWRP - device mismatch. Removing the assert works, but not a permanent solution. ...
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How do i install firmware or recovery menu when android smartphone reboots every 5 seconds? [duplicate]

I tried to install TWRP to TP-LINK Neffos C5A and phone started to reload every 5 seconds. Now i just want it to work. So, i tried to enter some menu (Volume UP + Power, Volume DOWN + Power, Volume ...
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Cannot unlock bootloader on Mediatech tablet

I have a tablet that someone gave me to fix. It is just some generic chinese mediatek tablet. It hangs forever at boot. The android logo pops up and then it just sits there in the animation forever. I ...
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Fastboot Xiaomi system partition problem

I am trying to upgrade Xiaomi Mi A2 Lite to Android Pie via fastboot ROM images. It was on Oreo, initially. Had TWRP installed in boot.img because it is an A/B slots device. TWRP is officially ...
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Lg g5 h830 Fastboot flash recovery - FAILED (remote: 'unknown command')

I've recently been trying to flash twrp on my LG G5 H830, when I ran "fastboot flash recovery recovery.img" or "fastboot boot recovery.img" it came out with the same "FAILED (remote: 'unknown ...
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59 views

Android TV stuck at boot animation after using `reboot bootloader` in terminal emulator

I used reboot bootloader in terminal emulator of my android TV. Since then it's stuck at boot animation. I tried connecting it to my laptop using USB type A male to male cable and USB type A to C as ...
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150 views

OnePlus 6T Did “fastboot boot” just delete all my encrypted data?

Today after a successful(Booted, worked fine all day) OTA manual upgrade(downloaded latest zip and flashed) I decided to reinstall TWRP in order to reroot. However, after running first "fastboot flash ...
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fastboot doesn´t see device but device manager & windows does

I am trying to unlock the bootloader of my Umidigi F1. ADB works, recognizes my phone but once I get into fastboot mode, fastboot devices does not display and devices. I did install all the drivers ...
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57 views

Missing recovery mode on Android?

I can't hard reset my Android phone it seems like my recovery mode is missing what should I do to make it back to normal or default? I already tried to perform hard reset but it only reboot to menu. ...
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170 views

help fastboot wont flash my image to my nextbook 11a

this is the commands i put in and the results PS C:\Users\ILIKESHEEP\Downloads> fastboot devices CHTT3B5D3960 fastboot PS C:\Users\ILIKESHEEP\Downloads> fastboot flash recovery twrp.img sending '...
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My phone is htc 816g dual sim phone. There is no oem unlocking option in developer mode. How can i fix it?

htc 816g developer options..! No oem unlock option enter image description here
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fastboot cannot see my phone (moto3g) when adb can

Introduction: My phone is moto3g (bootloader unlocked), my OS is Debian GNU/Linux 10 (buster) and I want to install Debian native on it. To do so, I need root my device, and to do it i have to use ...
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147 views

How root huawei y7 trt lx1/ switch slot?

I am trying to root my phone, I unlocked bootloader I have uploaded Magisk-v16.6 to internal storage I flashed by many twrp versions (fastboot flash recovery TWRP_3.2.3_TRT-LX1_by_kiruha_21.img/ ...
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136 views

Re-locking bootloader with stock ROM/recovery - Wileyfox Swift 2 Plus

I recently unlocked the bootloader on my Wileyfox Swift 2 Plus to take a partition image, as per this answer. I didn't flash the recovery or make any change to the ROM, and the device is not rooted. ...
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55 views

Can't boot into system or recovery

I had the Pixel Experience ROM on Redmi Note 7 Pro which got an OTA update and after the update was installed it got stuck on the boot logo of the phone, the usual keys for recovery mode don't work. ...
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196 views

I can't unlock bootloader on fly fron linux

My OS is majaro linux. My phone is fly nimbus 8. I tried to unlock bootloader on it. I followed the instruction. First I go to the Dev mod then enable OEM unlock and USB debugging. Second I typed: ...
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66 views

Can't erase cache using fastboot on OnePlus2

My OnePlus2 (I think using OxygenOS) displays start icons (normal logo and fastboot, depending on how I boot it), however, afterwards the screen always remains black, while the phone responds to key ...
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99 views

Motorola Moto X Play IMEI=0

I accidentally ran fastboot erase all and now the IMEI isn't being recognized on stock ROM. fastboot getvar imei returns the correct number, but no matter what ROM I try, it doesn't show in settings ...
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45 views

Reboot or recover data from blocked android using fastboot or ADB toolkit

Reboot or backup blocked android using fastboot or adb toolkit I used adb toolkit to uninstall proprietary android packages, but as I was removing apps something went wrong and my device got blocked. ...
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1answer
116 views

Xperia XA2: Stuck on “Sending 'boot.img'”

I unlocked my bootloader, and did: sudo adb reboot bootloader sudo ./fastboot boot ~/Downloads/twrp-3.2.2-0-pioneer.img But it gets stuck on sending: creating boot image... creating boot image - ...
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1k views

Fastboot doesn't see device but ADB does (windows 10)

I am attempting the unlock the bootloader on my Google Pixel 2 XL. I know this problem seems to be very common, but I have yet been unable to find a solution for my particular case after searching ...
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I am unable to enable cam2api on my ZMPM1, what should I do?

I have installed the latest versions of adb and fastboot and qualcomm usb driers for my phone - zenfone max pro m1. I tried running the command - "fastboot devices" and it runs perfectly ( when I have ...
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150 views

How to factory reset a locked phone when you cant access fastboot or usb debug mode

I have a Hyundai Orbit android phone. The situation is as follows: The phone has a pin which we don't know The phone was never signed into any google or other accounts USB debugging is not turned on ...
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67 views

Attempting to fastboot LG Tribute Dynasty,

So I am currently trying to flash an operating system onto my android and every time I try the command adb reboot bootloader It fails. The command simply reboots the phone like normal. Device: LG ...
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50 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 ...
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120 views

Unable to flash LineageOS or TWRP on OnePlus 5T

I'm trying to flash LineageOS on a new OnePlus 5T. I have unlocked the bootloader from fastboot, but nothing else is working. I booted into the stock OnePlus recovery mode and tried to flash ...
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1answer
513 views

Troubleshoot fastboot error 'remote: ' command not defined

Device: iMX 7ULP evaluation kit Platform-tools: r28.0.3 Image: O8.1.0_1.4.0_ANDROID_TOOL_7ULP_GA (ARM 32 Android 8.1) I used the image provided by nxp website on the device. Then I tried ...
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21 views

Nexus 7 not booting past google screen

I tried to factory reset my Nexus 7 this morning and it took 4+ hours, it stayed on the "erasing" screen so I got bored and turned it off, I figured no factory reset takes that long. Now when I try to ...