Stack Exchange Network

Stack Exchange network consists of 174 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

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).

0
votes
0answers
25 views

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. ...
2
votes
1answer
47 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-...
1
vote
0answers
52 views

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 ...
0
votes
1answer
48 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 ...
3
votes
1answer
245 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-...
1
vote
1answer
31 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 ...
1
vote
0answers
66 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 ...
0
votes
1answer
125 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?)...
0
votes
0answers
39 views

Stuck in Fast boot mode in nokia 3?

I was trying to root nokia 3 device. I unlocked bootloader and then installed TWRP.img .On flashing TWRP.img, i got stuck as device on opening gives a message saying "your boot loader is unlocked it ...
1
vote
0answers
183 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 ...
-1
votes
0answers
25 views

command prompt in fastboot on my lg k20 device

is there a way to update my lg k20 to a fastcharge usb 3.0 my pc has only 3.0 hubs the windows troubleshooter is telling me to use 2.0 I have no bus or converter and does the lg bridge support the ...
0
votes
0answers
53 views

I can´t reboot from fastboot on my RCA Mercury II pro tablet

my system got locked after too many wrong passwords. I tried to factory reset my tablet from the POWER+Up volume and then erase user settings. I tried to enter again, but the tablet comes to a ...
1
vote
0answers
28 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 ...
-1
votes
0answers
219 views

How to unlock bootloader on nokia 3 (Oreo)?

stuck on unlocking bootloader for nokia 3, adb commands works but wants to work with fastboot commands as it does nothing or give waiting for device .
-1
votes
0answers
51 views

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 ...
1
vote
1answer
111 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 ...
-1
votes
0answers
102 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 ...
1
vote
1answer
55 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 ...
0
votes
1answer
258 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 ...
0
votes
2answers
33 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 ...
1
vote
1answer
318 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 (...
0
votes
1answer
263 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 ...
1
vote
1answer
200 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 ...
0
votes
0answers
192 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 ...
0
votes
1answer
66 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 ...
0
votes
2answers
271 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?
1
vote
0answers
76 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 ...
0
votes
0answers
20 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. ...
0
votes
0answers
25 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 ...
0
votes
0answers
134 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 ...
1
vote
1answer
7k 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. ...
-1
votes
1answer
876 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
votes
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 ...
0
votes
0answers
44 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 ...
0
votes
0answers
115 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 ... (...
0
votes
0answers
20 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. ...
0
votes
0answers
925 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 ...
1
vote
1answer
162 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] ...
0
votes
0answers
12 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 ...
0
votes
1answer
641 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 ...
0
votes
0answers
24 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 ...
1
vote
1answer
969 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 ...
0
votes
0answers
58 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 ...
0
votes
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, ...
0
votes
0answers
55 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 ...
0
votes
0answers
335 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 ...
1
vote
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>...
0
votes
0answers
444 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 ...
0
votes
2answers
375 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 ...
0
votes
0answers
95 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:~$ ...