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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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nokia 3 'fastboot devices' command gives nothing

I have downloaded platform tools and adb-setup.exe which installs adb and fastboot i think,further on opening cmd after clicking shift + right click in platform tools i open cmd and here i typed ...
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1answer
21 views

Full image 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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27 views

Can't unlock RCA (Alco) RCT6873W42 Voyager bootloader

I have an older RCA (Alco is listed manufacturer) Voyager tablet model RCT6873W42 running Android 6.0.1 (kernel 3.14.0+ if that helps). I've enabled developer options, turned on OEM unlocking to allow ...
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1answer
25 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
36 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
17 views

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
76 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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0answers
11 views

No matter what i try i cannot get fastboot to work

Adb works fastboot does nothing. From recovery i run fastboot devices. I get nothing. I have tried everything. In my device mgr it says sooner single adb. Whatever that is
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1answer
70 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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0answers
12 views

Phone not turning on

My Redmi 5A fell down and now it is not turning on. When trying to power on by holding power button it is showing a low battery sign , but after charging for about 3-4 hours it is still showing the ...
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0answers
34 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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0answers
67 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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0answers
24 views

Adb working fastboot isn,t

First I have to tell you I've been trouble shooting this myself for a couple weeks. I'm familiar with the interface. I have a couple unique issues, that I haven't found on any forums. I usually use ...
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1answer
29 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
61 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
31 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
33 views

Nexus 5x bootloader unlock only temporarily

I hope you can help me with this strange issue. I looked everywhere, but I can't find an answer. I would like to unlock my bootloader and install TWRP recovery in order to update my mobile to Android ...
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0answers
15 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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0answers
27 views

Can't use adb while device is booted but can use adb in recovery mode

I have Redmi Note 5 Pro (whyred). I can't use adb while my device it fully booted but I can use adb in recovery mode(TWRP). I can also use fastboot. One strange is that on my friends' computer, adb is ...
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0answers
23 views

Create two unique backups and boot them

I have read that apps can detect the android id of the phone. And if I factory reset the phone it will get a new android id. If this is done is there any way an app can still detect that it is the ...
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0answers
79 views

Factory reset Xperia M4 Aqua with forgotten password and USB debugging disabled

I am looking for a method to either factory reset the phone or disable the screen lock with a forgotten unlock pattern. (I have no access to android itself.) The phone is a Sony Xperia M4 Aqua. I have ...
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1answer
1k 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
308 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 ...
2
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1answer
828 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
34 views

revivir boot de samsung galaxy s3 SGH-T999L

How can I install the boot or make my cell phone work if it does not connect through the adb fastboot? some time ago I downloaded a tool that repaired the boot automatically (only a window of the ...
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0answers
39 views

How can I ungrey out Oem unlocking on my Pixel 2 on Android Pi

pretty much the title, I'm trying to root my device and am struggling when i put my phone in bootloader mode and attempt to unlock with fastboot I get this error FAILED (remote: Flashing Unlock is ...
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0answers
89 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
14 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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0answers
539 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
113 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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0answers
11 views

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
455 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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0answers
18 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
503 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 ...
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0answers
46 views

Start Galaxy Tab when USB cable connected

I need to make my powered-off tablet start when the power cable is connected. I saw that with fastboot it could be done with the command fastboot oem-off-mode charge 0. However fastboot is not ...
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0answers
40 views

How do I update the OS from a custom build of Android 4.0.4 to something newer on the Ematic Funtab Pro? [duplicate]

I found an old Ematic funtab pro the other day, and decided that I wanted to update the OS and try to make the funtab more useful. There was no update checker that I could find for the actual OS, ...
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0answers
29 views

Asus Fonepad 7 bootloader is lost

Trying to flash my tablet (K012 Fonepad 7 fe170cg) I ran this commad fastboot flash fastboot boot.img and now the bootloader is lost and just a splashscreen is shown after I turn the tablet on. So ...
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0answers
240 views

Is possible to change partition table structure with fastboot

I have an Honor 7x phone, model : bnd-l21c185b144 I did update this phone with this instruction set to OREO. ( I didn't know that model is not supported ) In update duration it got error and did ...
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0answers
1k views

Trying to boot into twrp using fastboot gives the error FAILED (remote: unknown command)

Using Razer phone on android version 7.1.1. Bootloader unlocked. This is how I go: Enter bootloader. Type fastboot boot twrp Get following error: C:\Users\SSD\Desktop\PATH\platform-tools>...
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0answers
293 views

How to root blackview a20

I have a blackview A20 which is a low spec phone running android oreo go. I would like to use this phone for experimentation with android development and learning about android on a cheap device ...
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2answers
253 views

I am getting an unknown file transfer error (Flashing TWRP)

I am trying to flash twrp onto my unlocked Moto G4 Play so I can install a new version of Android but, I keep on getting this error. I have recently factory reset my phone and I am not sure if it is ...
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0answers
50 views

Custom Flashing to Nexus 7 - product info

I am trying to flash the latest 6.0.1 build onto my Nexus 7 tab. I picked MOB30X build from here naveen@gandalf:~$ fastboot devices 015d2a4ffd181016 fastboot But, when I do naveen@gandalf:~$ ...
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0answers
97 views

How to open the bootloader for Acer DA220HQL?

Got this DA220HQL from my mom, it was plugged in like once before, and is about 9 years old. I plugged it in, started it up, and it had the glaringly bad ui of Android v4 something. I nearly hurled, ...
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0answers
669 views

Erasing boot failed,device may be locked

I am flashing fastboot ROM in my mi A1 using mi flash tools but at the time of flashing it is showing the error:erasing boot failed device may be locked and I am not able to flash the ROM.Why is this ...
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2answers
210 views

Phone won't boot/start after successful flashing through QFIL

My phone was bricked, so I decided to flash my phone LYF f1s with the stock ROM through QFIL, but after after successful flashing it won't start !! Nothing happens, no matter which combination of ...
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0answers
149 views

Honor 8 lite bricked

I have a honor 8 lite Prague al00xx Indian variant. I had tried many custom ROMs and all worked really great until I flashed Chinese Oreo ROM for EMUI8 for Honor 8 lite. I tried getting back to stock ...
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0answers
191 views

I have installed TWRP but now I can't get into it

I am changing OS on my Lenovo Tab3 730M. This is main tutorial for me. http://www.droidschool.com/lineageos-14-custom-rom-lenovo-tab3-7/ I've unlocked the bootloader. But the command fastboot reboot ...
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0answers
13 views

Dealing with buggy Firefox os

I am trying to flash my ZTE ufire with Firefox os. The moment I try to enable debugging from the settings it gets off automatically, so adb cannot read it. Further whenever I try to get in recovery ...
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1answer
528 views

Unable to detect Android device with ADB on Mac but can detect it through Fastboot?

I am unable to view my Android device, an Oppo Find7, with ADB. I can view it with Fastboot. As I use a Mac, I followed this guide to install ADB and Fastboot. More generally, I am having issues ...
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1answer
157 views

Enabling WIFI hotspot from a computer without usb debugging

Is it possible to enable WIFI hotspot from a computer without usb debugging being enabled? I got a phone with broken LCD and i'm unable to enable usb debugging.