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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133 views

Any chance to unbrick relocked HTC One M7 with S-on and a old copy of the RUU.zip

Background After 1 year of use, the most recent OTA to my HTC One rendered several key features, including the notification bar and the home and back buttons, unusable , effectively soft-bricking ...
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70 views

Stuck in Fastboot mode after flashing custom ROM on Xiaomi Mi3W

I flashed MIUI fastboot ROM on Xiaomi Mi3W since I had problem booting it. It was a old ROM but now nothing happens except it is stuck on fastboot mode. It doesn't even charge the battery. I tried ...
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245 views

Are there other ways to enter fastboot mode if the power button is broken?

I've dropped my phone (ATRIX HD) and now it isn't turning on. The thing is when I connect to charger it shows the green light and start to boot (Motorola logo appears) but then it keeps restarting ...
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0answers
643 views

BOOTLOADER - USB Device Not Recognized

I am currently using a ROOTED "Huawei MediaPad 7 Lite" tablet and am having issues entering the bootloader. When powered on and connected to a PC, the device is seen in adb using the command adb ...
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0answers
121 views

Can't flash stock recovery Nexus 7 2013

I have a Nexus 7 2013 LTE device and I want to go back from TWRP to stock recovery. I've downloaded the factory-image lmy47o and extracted recovery.img and boot.img but I can't flash them: fastboot ...
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0answers
1k views

Can't unlock bootloader

I'm trying to unlock the bootloader of my tablet for hours now.. There's no solution out there that worked for me. I've already tried: fastboot oem unlock (the tablet responses with a question ...
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0answers
271 views

OS Features missing after upgrade to Android 5.1

I just updated my Nexus 5 from Android 5.0 LPX13D to 5.1 LMY47I. Some components of the OS now seem to be missing. When I scroll with two fingers from the top of the screen I only get the ...
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401 views

Asus Transformer Tab tf300t stuck on asus screen. No ADB, no fastboot, no recovery, no os

I'm very happy with cm11 on my Galaxy s3 so i wanted to try it on my tf300t. First i unlocked the bootloader which i succeeded in doing. Then i flashed clockworkmod recovery via adb. However, when i ...
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2k views

Installing Android using only fastboot on HTC Vision

I lost my system somehow. My phone turned off and reboots during starting up. I'm only able to go to hboot (fastboot/recovery etc.) on my phone, and I'm unable to run Android system. I have tried ...
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4k views

Installing custom ROM on HTC phones over Fastboot or ADB

I am trying to build CyanogenMod for Sensation. After building I have update.zip, which I can install over CWM recovery manually. But how do I install the ROM over Fastboot or ADB in order to automate ...
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15 views

Can't recover Nexus 5 from bootloop

Hey I am trying to get my Nexus 5 working again. I really need someone to help me troubleshoot this. One day I noticed my phone was off after about half an hour from being fully charged. It wouldn't ...
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83 views

After installing CyanogenMod 12+ fastboot is not working

I installed CyanogenMode 12+ in my S2 device. Every thing was working fine and I used fastboot to flash the ROM. After installing CM when I go to download mode again, fastboot didn't detect the ...
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170 views

Unable to flash boot.img in htc one v

I'm trying to install a new rom in my HTC one V. I could successfully do everything with my one V until I upgraded my windows 7 to windows 10. I already have CWM recovery. USB debugging is ON . I try ...
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0answers
316 views

Yureka fastboot not detected in LINUX, but adb detects device

fastboot detects Redmi 2, but not Yureka. I am trying to install Cyanogenmod in Yu Yureka. When I tried installing the CM zip with default recovery, it failed stating "Signature Verification Failed". ...
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122 views

problem loading fastboot and recovery

I have a Croma CRXT1125 tablet. I was trying to flash a custom recovery and some problem occurred. The recovery failed to flash and the stock recovery is also not opening now. Stock recovery worked ...
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523 views

Creating and flashing image to Android device

I have created an image of my Android device (Lenovo A6000) using the command adb shell -c su 'dd if=/dev/block/mmcblk0p23 > data.img' Now I would like to flash this image to the same device, ...
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921 views

Sony Xperia SP C5303 not booting into fastboot mode

Device: Sony Xperia SP C5303. I turned off the device, then hold volume up key, and plugged the USB cable. But I see no blue light. After a while it goes into charge mode. What could be the ...
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894 views

Moto G XT1039: Random reboots to bootloader with “failed to initialize partition table” message

I have a Moto G 4g (peregrine XT1039), which in every one or two days reboots to bootloader with "Fastboot reason: failed to initialize partition table", see Image(1). In Image(2), you can also see ...
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1k views

Moto G doesn't boot anymore, not even into recovery

My Moto G 2013 (XT1033) was working (except for the issue I described here, but the other features all working), I restarted it but it didn't come back. I was dropped into the 'AP Fastboot Flash ...
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0answers
501 views

Moto G 2014 XT1068 is bricked. Keeps looping and won't boot. What to do?

Ok so here's a couple things about my phone: Its bootloader is unlocked, it is rooted, and it has a custom recovery (TWRP). The problem is, my phone got stuck in the "WARNING, BOOTLOADER IS UNLOCKED" ...
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108 views

Fastboot hanging after first command (osx)

My fastboot binary from OSX is responding weirdly and i can't figure out why. It seems to work great at first since the first command i'm sending works (and this whatever it is) ; but any command ...
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82 views

Nexus 7 - Stuck on boot animation. Fastboot detects device but ADB doesn't

My Nexus 7 (2012, WiFi) is stuck on the boot animation. I can detect it in Fastboot but not with ADB. Is it still possible to backup the data before I wipe it? It's not rooted and the bootloader is ...
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622 views

'fastboot reboot' works but not the other fastboot commands

I know most MediaTek devices don't support fastboot, but I have a Canvas Knight (MT6592) which does reboot into fastboot mode when I use adb reboot bootloader. Here, fastboot devices detects my ...
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458 views

After using SP Flash, Phone wont boot up

Handset : Huawei Honor Holly Root : Yes I used SP Flash Tool to flash a ROM, downloaded from the Official website of the phone company. I flashed all that was given (boot, uboot, recovery, ...
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131 views

Bootloop phone wont boot after boot screen

Folks, I've rooted by buddy's phone and tried changing the boot animation to marvel boot screen, but unfortunately the phone won't boot further it keeps looping at boot animation. Now the phone's ...
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0answers
50 views

Bootloader frozen on Nexus 10

My Nexus 10s bootloader is stuck, it keeps saying "Downloading... Do not turn off target!!" and fastboot commands have no affect on it. I also can't use the volume rocker to boot into recovery or ...
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0answers
297 views

OS X Yosemite - Nexus 5 - ADB Device Offline

I've been trying to initiate ADB commands on my Nexus 5 using my MacBook Air. However, when I type adb devices into Terminal, my Nexus 5 is listed as offline. I've tried disabling/enabling USB ...
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0answers
2k views

fastboot oem unlock: hangs with `…'

First of all, I am a newbie to Android. I am using Ubuntu Gnome 14.10 to run all the commads. I am trying to unlock the bootloader of my Lenovo A536 (stock Android 4.4.2 aka KitKat). Here is what I ...
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3k views

Nexus 5 stuck on boot loop after restarting while upgrading the OS

Last week, I received an update on my Nexus 5 for Lollipop 5.0.1. Version 5.0 was working fine, so I decided to just update. However, a few hours after updating, my phone started to lag and freeze, so ...
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0answers
535 views

Recover data from non-booting Android

I have an HTC Once Mini that will not boot. It has stock firmware on it (no root, no replaced bootloader, no custom recovery, just plain old stock HTC firmware). It will start to the bootloader and ...
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2k views

How to detect if bootloader is unlocked when fastboot doesn't work?

I have this tablet that runs on RK3168 (Rockchip) SoC. The problem is that fastboot doesn't recognize the device, but after so much toil, I managed to find Finless' flashing tool and flashed CM ...
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1k views

Rooting note 3 - fastboot not unlocking or detecting

I have been reading so much trying to find the answer to this problem, but I can't find any. I am not quite sure what to do at this point. I am running XUbuntu and I am trying to to root my SM-9005 ...
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0answers
5k views

Fastboot: Lock state - Locked on nexus 7

I am having trouble unlocking the bootloader on my Nexus 7. When I boot into fastboot I see the message LOCK STATE - LOCKED. I want to unlock the bootloader so I can re-install the stock operating ...
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0answers
47 views

OS X utility to create stock images

Before I spoil my new HTC One. I needed a little help with the following Create a backup of the recovery Create a backup of the system Create a backup of anything that maybe required to bring the ...
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507 views

Desire HD: I apparently flashed the wrong pd98img.zip, how can I fix this?

in a attempt to downgrade my Desire HD from 2.50 to 1.32 I apparently pushed the wrong pd98img.zip into my zip card. I can start the phone, but I'm greeted by some chinese characters and can't do ...
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3k views

Unbrick HTC Desire

This is my output of fastboot getvar all (bootloader) version: 0.5 (bootloader) version-bootloader: 6.93.1002 (bootloader) version-baseband: 5.17.05.23 (bootloader) version-cpld: None (bootloader) ...
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3k views

Failed to get_identifier_token from HTC Desire HD with fastboot

My HBoot is HBOOT-2.00.0027, I got the following problem when I was trying to unlock my HTC Desire HD following the instruction http://www.htcdev.com/bootloader It seems HBOOT 1.0 has this problem ...
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0answers
501 views

How to recover Samsung Galaxy Fit using software that works on Ubuntu?

I tried to install the new Jelly Bean on my Samsung Galaxy Fit, but it got stuck during installation with an error on /tmp/slideloadpackage.zip. Now, my original Android OS lost. How can I recover ...
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0answers
2k views

Is there a way to boot to the fastboot mode?

I booted to the TWRP recovery for the first tiem and played with it by wipping everything using all the wipe options. Then I ended up unable to boot to the fastboot mode, normal mode or recovery mode. ...
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856 views

Boot custom kernel via phone

I can currently boot a custom kernel (without flashing it) for test purposes by using fastboot on my computer via: cmd> fastboot boot customkernel.img Which works great. I've found great kernels ...
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0answers
3k views

How to install fastboot drivers?

I have a cheap clone android (benss b3) that I managed to connect to win 7 by editing the .inf file in usb drivers. Now I want to load different ROMs via fastboot. However, when I boot to fastboot ...
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0answers
44 views

Fastboot not working?

I have a Huawei Honor 6. I have an unlocked bootloader, and I am trying to install marshmallow. I have flashed TWRP before (and I can boot to it and use it), so fastboot has once worked. Now when I ...
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0answers
19 views

HTC one v boot loop after restoring using TWRP

I restored original ROM of my HTC one v using TWRP but it stocks on HTC logo during boot I had installed Shendu ROM with Hellboy kernel before. I cannot access fastboot from my laptop too. It seems ...
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37 views

Where does fastboot live on the device?

I just started getting into ROMs and it's really great. I am wondering where fastboot actually lives on the device so I can make sure I don't harm it. I'm fairly sure that it doesn't live anywhere in ...
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65 views

flashing boot.img separately vs flashable single zip for custom rom?

I have seen different methods to flash custom ROMs? 1) For my phone where I recently installed a custom ROM, first I flashed a custom recovery TWRP using fastboot flash recovery recovery.img. In the ...
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36 views

ubuntu fastboot devices not returning anything

I have tried the following for Note 3 running kitkat 4.4.2 Downloaded android sdk and hence using the latest fastboot (adb can see device) Added myself to plugdev grp and setup udev mentioned below. ...
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25 views

Correct build choice for Nexus 7 lunch

I've been trying to install a kernel/bootloader/etc for my Nexus 7 wifi only model tablet and got this error from fastboot flashall, Device product is 'flo'. Update requires 'msm8960' or 'deb'. ...
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99 views

Cannot use ADB on a bricked phone

I'm trying to unbrick a soft-bricked Android phone, and many tutorials say to use ADB to fix it, but I cannot use ADB or fastboot, since the device is not reconized. It's a Lenovo Zuk Z1, I am running ...
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0answers
97 views

HTC Desire 816G cyanogenmod fastboot oem unlock issue

When i issue sudo fastboot oem unlock I am getting this error message ... FAILED (remote: unknown command) finished. total time: 0.002s How to solve this issue?
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496 views

Huawei P8 Lite - Bootloop after Rooting, Attempting to flash ROM

I got a new Huawei P8 Lite and unlocked the bootloader and rooted it. After that I updated the EMUI/System and rebooted it. Since I rooted it, it apparently doesn't like the update and is now in a ...