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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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I am in stuck with rebooting Samsung S5 in normal mode rather than recovery mode. How to fix?

Consider the following thing first: My Power Button doesn't work at all. My phone was on and I connected the phone with PC and ran the following command in adb adb reboot recovery Then it opened ...
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I Have an LG P769. I am trying to root it and it is not working

Forewarning: I am not exactly an expert on this type of thing. I have tried several things, but the problem seems to be that I cannot get into the bootloader via "adb reboot bootloader" or by ...
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Asus Zenfone Max Pro M1 unlock bootloader process stuck at sending file

Begin fastboot flashall ------------------------ Erase Data: Yes Support All device current-slot is current-slot buildtype is user target reported max download size of 536870912 bytes sending '...
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Razer Phone 1 no such partition problems

I was currently having problems with my phone boot looping and tried to go into recovery or use twrp to stop it but they both failed. I read by using the flash_all dat that it will flash the factory ...
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1answer
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Can't Flash Google Factory Image - No Boot Partition

I seem to have bricked my phone but thankfully the bootloader is unlocked so I'm sure there is a way to fix it. I am having a hell of a time though, I think I need to re-create the boot partition ...
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19 views

Need urgent help in fixing soft-bricked Moto G5s

I was trying to root my Moto G5s. I did a mistake while flashing twrp, I flashed cedric instead of montana. As a result, whenever I reboot, I am getting error: Start Up Failed: Your device didn't ...
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2answers
94 views

Orange state: can't boot into fastboot after bootloader unlock (REALME 1)

Can anyone help me with this? I unlocked my bootloader successfully. But after that, when I am trying to get into fastboot mode, I am not able to do so. Whenever I run adb reboot fastboot, phone ...
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58 views

Cannot reach fastboot from Recovery Mode

Beforehand: Sorry for asking. I was sure this wasn't duplicate. I have made myself a soft brick. The story: used kingoroot or something similar, then was too much in a rush hitting the "yes, please, ...
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unable to flash stock rom in swipe elite plus

I'm trying to flash MIUI 8 on my Swipe Elite Plus. It fails and the is device not booting; it's stuck into the Videocon boot logo. After that I successfully flashed the Swipe Elite Plus stock ROM, in ...
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81 views

Stuck on Boot up Pocophone F1

I started by wanting to get a custom ROM on my Pocophone F1 Global. I watched a video and managed to get that done. I was able to use it and everything, then I realised that I wanted to go back to ...
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My honor 6x stuck on logo screen after update

My honor device stuck on logo screen after installing the official update, unable to access the E-recovery and my bootloader is unlock, i try to unbrick my phone using multi tool but they software is ...
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Kindle 5th generation in fastboot but no options?

Having 2 Kindle Fire "5th generation"s that are pretty much useless for not getting proper software, I had good hope of putting on a custom ROM after reading this post. But as always with old posts, ...
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fastboost doesn't see device on linux even with su and sudo

so i Had a trouble booting into download mode on my Samsung Galaxy J4 to boot twrprecovery.img and not flashing it after enabling "developers options" and "USB debugging" and "Unlock OEM" now ...
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1answer
205 views

Unlock Bootloader from EDL mode via MSMDownloadTool

Problem I'd like to know the proper process of "hacking" emmc_appsboot.mbn in order to flash already an unlocked bootloader from start. I didn't want to ask for a file from an already unlocked phone ...
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2answers
80 views

Is it possible to flash a custom ROM without a custom recovery image

For an un-rooted device, almost all articles/forum posts I've read say that in order to flash a custom ROM you first need to flash (or boot) a custom recovery image like TWRP. I'm not sure I ...
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Nokia 3 8.0 Oreo can't get to fastboot or recovery

I can't get my Nokia 3 with android 8.0 Oreo (with August 5, 2018 patch) to boot into fastboot using adb reboot bootloader It justs reboots normally, no error or different boot animation, the same ...
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2answers
208 views

ADB/Fastboot not detecting Android stuck in bootloader

I tried to flash the most recent android pie update to my pixel 2 only for it to fail writing partitions even though I followed a recent guide to my best ability. Now, the phone is stuck in the ...
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Xperia L not booting to TWRP

I installed TWRP in my rooted Sony Xperia L using the TWRP Official App. The app said that the flashing was successful. Then, when I give adb reboot recovery command, it boots into the stock recovery. ...
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1answer
70 views

Fastboot commands extremely slow

I'm trying to unlock my HTC U11 and I've tried to run fastboot both from the packages of my Ubuntu derivative (fastboot version 1:7.0.0+r33-2) and from the platform tools (fastboot version 28.0.1-...
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Can't boot into fastboot from Error Mode screen

I have a Huwaei P9 Lite (2017) with unlocked bootloader, build number PRA-LX1C432B172. Both recovery partitinons probably got damaged and the phone just hangs in the Error Mode screen (just like in ...
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1answer
346 views

How to fix “fastboot FAILED (command write failed (Success))” error?

I tried to flash twrp image in POCO F1 by using the command fastboot flash recovery twrp.img. But it didn't work. It showed the error message: fastboot FAILED (command write failed (Success)) What ...
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1k views

Huawei bootloader: what is “FB Lock” and how to unlock it?

I was playing around with my spare Huawei phone trying to bypass the security without wiping data and came along this article: https://blog.salvationdata.com/2018/09/07/case-study-mobile-forensics-a-...
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1answer
44 views

Nextbit robin recognised on fastboot but not adb shell

In the process of rooting my Nextbit Rboin, I unlocked the bootloader, and wiped it so I only have TWRP on it. I have an LOS zip ready but I dont know how to get it on the device. I have installed ...
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347 views

How to fix “Preflash validation failed” when flashing stock image from Fastboot? [duplicate]

I recently soft bricked my Motorola G5s plus (sanders), and tried reinstalling the OS from here, but I failed with errors including Permission denied (while wiping partitions), preflash validation ...
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1answer
808 views

how to succesfully boot into bootloader/fastboot mode on alcatel 5049z smartphone

I am having issues( i am a "novice" when it comes to unlocking a30 android bootloader with a PC...) with booting into bootloader/fastboot mode on my stock rom--android 7--Alcatel a30(non rooted 5049z?)...
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933 views

How to fix phone booting only into fastboot mode after flashing a custom ROM?

I have a Wileyfox Swift and I have tried to install lineageos 15.1 by following the tutorial that can be found on the lineageos website. I have successfully installed adb, twrp and used it to install ...
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33 views

Advice to recover a bootlooped One plus One

Tldr: I now have a phone that works when it is plugged in but continuously reboots when it is not, shows the Oneplus logo and then reboots again. I am able to boot into TWRP or fastboot. I tried a ...
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1answer
470 views

How to take full image backup of eMMC?

I have an Archos 55 Platinum here. There is also a unofficial TWRP, if this might help. I would like to make a backup of the storage of the phone, like dd for any partition, so I can inspect the ...
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1answer
134 views

Can't reinstall nothing to /system

I tried to update my Xiaomi Mi A2 to Android Pie since yesterday the Beta was Released. At first, I tried to install the official provided one, but after facing some errors, I installed the Treble ...
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1answer
751 views

Cannot flash twrp-3.2.3-0-cedric.img (Motorola Moto G5) (“Image not signed or corrupt”)

I have followed all the steps of this guy but flashing twrp-3.2.3-0-cedric.img failed. When I open my Ubuntu console and type fastboot flash recovery /home/username/folder/twrp-3.2.3-0-cedric.img, it ...
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2answers
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TWRP accepting `adb` connections but no `fastboot` connections

I can connect to TWRP (3.2.3-0) with adb but fastboot devices does not list any and fastboot continue (while my phone is booted into TWRP) only prints: $ fastboot continue < waiting for any device ...
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1answer
852 views

Flashing Nexus 5 factory image fails on writing userdata

Recently, I purchased a used Nexus 5. I would like perform a full reset, so I’m trying to flash the factory image using Google’s official instructions. However, I keep getting the message FAILED (...
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2answers
2k views

fastboot set_active command does not exist

I am trying to root my Xiaom mi a2 phone. But i am stuck on changing the active partition. When i enter "fastboot set_active b" it doesnt execute the command. Instead i get a list off all available ...
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1answer
457 views

LG V30 - Flash ROM using download mode?

My V30 is soft-bricked because of power-loss during a system update. Verizon would charge me a deductible for fixing it under warranty. I can: - Access recovery - Access factory reset mode - Access ...
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378 views

Stuck in LineageOS boot logo when installing on Xiaomi Redmi Note 5 global

I booted TWRP 3.2.3-0 using fastboot, then followed #5 unlocking fastboot to install it permanently on my Xiaomi Redmi Note 5 cause of the problematic anti-rollback from Xiaomi. Next, I installed the ...
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1answer
107 views

Error fastboot flash system

Hey i have phone xiaomi mi a2 try install another OS but get this error any ideas? need faster, cuz i can't run phone stuck on android one logo PS C:\add> fastboot flash system C:\add\pixel.img ...
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2answers
593 views

Fastboot unlock failed

I have a Nokia 6 and whenever I try to unlock my device I am facing error. The command sudo fastboot oem unlock The result (remote: oem unlock is not allowed) Any suggestions?
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0answers
125 views

xt1527 in boot loop with usb debugging disabled

a couple days ago my xt1527 started acting weird. Gapps started to crash out of nowhere. Today, every app that I tried to open crashed 2 seconds after, so I turned my device off to reboot and see what ...
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0answers
31 views

Cannot use Android phone in fastboot mode

I have a Samsung Galaxy On7, Android 6.0.1. On my computer (Windows 7, 32-bit), I have adb and fastboot installed. I can work on my phone properly from adb. But the problem starts in fastboot mode. ...
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1answer
18k views

How can I reboot into recovery from fastboot?

I have a phone that is bootlooping after a power failure + battery depletion during system encryption. How it got bricked isn't important here, the trouble is that I can't get into the recovery mode. ...
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1answer
2k views

fastboot: usage: no command

Basic information: Windows - Android SDK - fastboot.exe As the title says.. fastboot won't work in my cmd and fails with the output: fastboot: usage: no command. The android-sdk is located in the ...
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1answer
1k views

Enable USB debugging in an Android broken screen

I have a broken display which belongs to my friend. The mobile can power on but the display is still blank. I need to enable USB debugging to recover the data. While doing so there are these following ...
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0answers
147 views

HTC Desire 626 Verizon Bootloader unlock

I'm trying to unlock the bootloader on a HTC Desire 626 from verizon. at first i got stopped by waiting on device but after that when entering fastboot oem get_identifier_token i get this ... (...
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0answers
21 views

Moto G Falcon read onlypartitions

My Moto G Falcon (XT1033) just rebooted 2 days ago and I got stuck at the installed custom ROM boot animation. And I can't flash any custom ROM nor the Stock ROM via mfastboot. everything is freezed. ...
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1k views

Does the fastboot erase cache command wipe all your data off your phone?

As the title says. As i was trying to flash a new recovery to my phone, i followed a tutorial and that said i needed to do this command but now the OS isnt booting up anymore. Did this command wipe ...
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1answer
226 views

What is “flash” partition?

I were going to flash recovery, but this happened: $ fastboot flash flash twrp-3.2.3-x_blu_spark_v8.83_treble-op5_op5t.img Sending 'flash' (28672 KB) OKAY [ 0.675s] Writing 'flash' OKAY [ 0.013s] ...
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my moto 5 plus will not accept twrp

fastboot flash mode will not accept any of the twrp combinations for my phone ? im almost there … does anyone know a command prompt to help a newbie out? the twrp ive used are all of potter . I cant ...
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1answer
878 views

Rooted Moto Z2 Play seemingly bricked after accidental OTA update. Any chance to save it?

I have had my Z2 Play for half a year, and soon after I got it I unlocked the bootloader with Motorola's official method, installed TWRP, rooted it with Magisk and installed Xposed Framework. I was ...
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39 views

Should I add sudo before the fastboot command on macOS just like on Linux?

I will be using fastboot on macOS. I will be following this tutorial. The guide only mentions Windows and Linux, and I do not wish to install those on my Mac right now, and as I think fastboot is the ...
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1answer
2k views

How to wipe data on a bootloader-locked, broken screen, Nexus 6P

I want to sell my Nexus 6P for parts, but I want to wipe it first. The screen of my Nexus 6P broke (internally, the touchscreen MIGHT be fine, idk). The phone is full-disk encrypted with a PIN and the ...