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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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fastboot check password failed

I try to unlock OEM, using command fastboot oem unlock. My device is Huawei MediaPad Т5 tablet. I got the error: ... FAILED (remote: check password failed!) finished. total time: 0.014s Why?
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64 views

How do I install OS in Andriod phone without using fastboot and TWRP?

I've tried to upgrade the rom in MOTO G4 Plus using TWRP version of 3.2.1.0 and during installation process I wiped out the existing android 7.0.1 without backup(understood the cost of backups now). ...
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Last time booted into recovery mode

Is there a way to find the last time an Android device was booted into recovery mode? Trying to help out a friend who had someone, seemingly, attempt to wipe the device. When the device was returned ...
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12 views

lenovo a6010 fastboot < waiting for any devices > when trying to flash

I want to root my device(Lenovo a6010),am now trying to install TWRP but fastboot can't see my device when I try to flash the image, even though "fastboot devices" yields my device. Usb debugging ...
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fastboot getvar doesn't work

When I type in "fastboot getvar anti" or "fastboot getvar all" Instead of the actual value I see this: usage: fastboot [ <option> ] <command> And below the list of fastboot commands, ...
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1answer
76 views

Nexus 5 stuck on OS loading animation, pressing Volume-/Power only shows fastboot for a second, adb shows nothing

This is the normal LineageOS loading screen, which I had until yesterday: Problem: Since yesterday, only one circle is going from right to left, forever. In other words, it never reaches the 3 ...
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2answers
109 views

Can't flash custom TWRP recovery image on Motorola Moto G7 Power phone

I've got a brand new Motorola Moto G7 Power running Android 9. I also have Ubuntu 19.04 running on my desktop. I want to root the phone. I've managed to unlock the bootloader using Motorola's ...
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16 views

LG K20V Stuck in Fastboot Mode

My LG K20V is currently stuck in fastboot mode. I've run the ADB/Fastboot tool, via the Windows 10 command line prompt. The Fastboot Devices command recognizes the device. The Fastboot Reboot command ...
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21 views

(fastboot) waiting for any devices

I did in all the ways still it's not working. I was doing with Lenovo K8 note. Even in the device manager, it's proper I looked for almost every tutorial.
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10 views

Cant go in fastboot mode in SM-J400F [duplicate]

I am trying to root my Samsung SM-J400f but I just cant get into fastboot mode. As soon as I type following command :- adb reboot bootloader My device just reboots and doesn't enter into fastboot or ...
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56 views

Cannot install TWRP

I am trying to install TWRP on my android phone. My problem is that when I try to flash the img file the download starts but it doesn't get all the way through and just throws command failed at me. ...
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1answer
75 views

Fastboot commands are not working

I have tried to relock my Zenfone Max pro m2,but after installing stock recovery when I tried to run relock.cmd, it is not working showing that write to device failed(invalid argument) Even when I ...
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1answer
25 views

How to flash Cubot r11 stock rom on bricked phone?

I am using Ubuntu and while attempting to root my phone using fastboot I ended up on a boot-loop cycle. Also power+volume-up to enter recovery mode isn't working. How can I fix this issue(Linux tools ...
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13 views

How to erase Kyocera recovery partition

I'd like someone tell me how to erase the recovery partition in Kyocera phones. The thing is that I need to power it in fastboot mode, and that is the only way, it's only possible if the recovery ...
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2answers
2k views

“Fastboot devices” command doesn't work after macos high sierra 10.14.4 upgrade

I recently upgraded my 2016 MacBook Pro to High Sierra 10.4.4 update and since the update "fastboot devices" command hasn't been working. "fastboot" itself gives a response but "fastboot devices" ...
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Device boots old version after update TWRP

Out of the blue, my tablet (Samsung Galaxy Note 10.1 wifi) made a reboot and got stuck in the loading screen. So I tried to install a new ROM (sideload), but noticed that I can't because then the ...
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1answer
179 views

Why can't I write to recovery using fastboot on A/B device?

I'm trying to flash TWRP Recovery into my Mi A2 recovery. However I get the error when flashing: ~$ fastboot flash recovery twrp.img FAILED (remote: '(recovery_a) No such partition') Does anyone ...
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Nexus 10 boots into fastboot, but not into anything else

I am stuck with what seams like a dead Nexus 10 or a stupid issue. If the device is powered off -- And I hit vol+ vol- and pwr -- It boots into fastboot. After that, no joy. I get black screen if I ...
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13 views

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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1answer
28 views

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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88 views

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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29 views

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
78 views

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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26 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
314 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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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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166 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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56 views

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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0answers
54 views

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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39 views

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
550 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
201 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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68 views

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
364 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
92 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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137 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 ...
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1answer
1k 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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1answer
2k 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
49 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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0answers
625 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
1k 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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1answer
2k 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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0answers
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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
767 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
201 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
1k 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
104 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
1k 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 (...