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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21 views

my phone won't reboot from fastboot mode it keeps coming back to fastboot mode

I wanted to flash recovery.img in my phone but I accidentally flashed boot.img and now my phone is stuck in fastboot mode.
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0answers
203 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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7 views

Relock Y300 Bootloader

I have hauwei Y300-0100. I unlocked Bootloader Of My phone before for root it. Now i want to flash my phone with stock rom but i cant. I tried to lock my phone with fastboot but i gave an error: I ...
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0answers
13 views

Bootloader (fastboot mode) unresponsive after update from HHZ11k to HHZ12d (Nexus 5)

I have a rooted + Xposed installed Nexus 5 with Android 5.0. Two days ago it rebooted without any reason, underwent a few bootloops, and then got hard bricked. No idea why. Normally, forums say there ...
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3answers
24k views

How do I disable Fast boot without the Power option in Settings?

I went over some of the old forum posts about this issue and there seems to be a lot of confusion about this. I am planning to root my HTC Desire (GSM) which at the moment is running original UI/ROM ...
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3answers
5k views

How to flash root.zip in fastboot

I need to flash the root zip I downloaded from Chainfire without having to install recovery like Clockworkmod. I have fastboot and adb and that's what I used to flash 4.4.4. This is for my Nexus 7 ...
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0answers
8 views

Galxay note 2 not recognized in fastboot mode

I recently updated my rooted note 2 (n7100) using omniROM 4.4.4 kitkat from Here. After I flashed the recovery image and updated the ROM, my root got lost, and I was also unable to get into recovery ...
4
votes
1answer
48 views

How to get files off of Nexus 5 Android when LCD Screen + Touchscreen doesnt work?

So I have a Nexus 5 Android 32gb phone that boots up but the LCD screen and touchscreen doesnt work. I know because it gets detected on my computer. Also the bootloader is still locked, which means I ...
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2answers
48 views

My Phone Stuck in boot screen How to recover?

I am using micromax canvas hd A116. I tried to install Custom ROM and I installed safely. After 1 Week I tried to reset my phone using factory reset under settings. After that my phone is not ...
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0answers
24 views

System wiped on LGL31L, can't enter recovery or fastboot

I have an LGL31L (also called the "LG Access", it's an LG F70 D315 variant) that has a wiped /system/ (I accidentally wiped it while trying to resolve a bootloop after a botched factory reset), and I ...
6
votes
2answers
2k views

nanddump vs fastboot

I have two identical phones. On one of them I've managed to corrupt the system partition and it won't boot. I have fastboot, root (on the one that boots), but I don't have ClockworkMod --- my phone ...
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3answers
4k views

fastboot flash recovery doesn't work on HTC Desire

I'm trying to update ClockworkMod recovery on HTC Desire. Fastboot recognizes the device: $fastboot devices HT03PPL04520 fastboot But flash recovery fails: $fastboot flash recovery ...
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0answers
45 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". ...
2
votes
1answer
4k views

fastboot does not discover my device

I want to connect my device (Omega T107) in fastboot mode. I reboot in bootloader mode (adb reboot bootloader) Screen is black(0 light comming out of it) computer can discover it and driver installs ...
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0answers
26 views

Oppo find 7: bootloader re-lock inpossible?

I tried to relock the bootloader on my Find 7 (which I'm pretty sure it was unlocked since I installed a custom rom). fastboot oem lock ... After that nothing. Windows console is "stuck". Any clue? ...
0
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1answer
2k views

Asus memopad7 170C, unlocking bootloader fails

I'm trying too root my Asus memo pad 7 (170C), I've tried EVERY method, using KingoRoot, SuperOneClick, Frameroot, motochopper. None of them worked. So I decided to do the rooting stuff myself, first ...
3
votes
1answer
138 views

How to hard brick an android phone (Galaxy Nexus)?

I'm trying to figure out whether or not I managed to brick my android phone, a Galaxy Nexus*. Using ClockworkMod Recovery, I pretty much erased everything I could find (/data, /cache, /factory, ...
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2answers
1k views

does flashing a kernel ever wipe anything on the phone? + Doing it without CWM?

does flashing a kernel ever wipe anything on the phone? and is it ever dependent on android version? e.g. 4.22 or 4.3 I have CWM and i've seen the option to install from zip within CWM recovery. ...
4
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2answers
33k views

Problem unlocking HTC phone using their fastboot program

According to HTC, my Amaze 4G is fully ready from the factory to be queried for its identifier tolken, but when I run the appropriate command, it doesn't work. I get: $ fastboot oem ...
-1
votes
1answer
293 views

ADB sideload and fastboot uses. What's the difference?

1) If i want to flash a stock rom what should I use adb sideload or fastboot. I have seen on youtube people using both of these. Are both of these similar or different. Sorry if this sounds stupid but ...
0
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2answers
5k views

How to enable USB Debugging in Android if forgotten pattern for screen-unlock?

I want to use some third party software to clear my device's screen unlock pattern which I forgot. They require USB debugging enabled but I don't have it enabled in my Android. How do I turn on USB ...
2
votes
1answer
177 views

Error: Writing 'partition' Failed (remote failure), on Motorola Razr HD xt925 during ROM flashing from fastboot

A couple of days ago, I got an error on my phone (Motorola Razr HD xt925) saying that it cannot load the home screen. So, I restarted it in order to resolve the issue. However, it didn't reboot and ...
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0answers
21 views

Android Highscreen Alfa R stuck in recovery mode, help?

today the phone got stuck during normal usage and I had to unplug the battery in order to restart it. However, it is stuck in recovery mode. Selecting any option given by the recovery will just close ...
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3answers
1k views

Is it possible to run fastboot in a recovery mode shell (without connecting to PC)?

I have a method for unlocking the bootLoader of my HP SlateBook x2 running Android v4.3 consisting of: Booting into recovery. Connecting to PC via USB cable. Sending the command fastboot -i ...
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votes
1answer
105 views

LG Optimus G Pro: adb devices works but adb reboot-bootloader doesn't boot into fastboot mode

I am looking to install Ubuntu on LG Optimus G Pro, but I have a problem on it. adb devices shows device is connected through ADB daemon, but adb reboot-bootloader or adb reboot bootloader doesn't ...
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2answers
3k views

How can I recover from flashing broken ROMs on my HTC One X?

I am seeking your help to clear up some of my confusion in solving a problem with my HTC ONE X. I tried flashing a custom ROM on my HTC Android phone but all the files and partitions got messed up ...
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0answers
992 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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0answers
26 views

What is the version-main meaning?

While in fastboot I can obtain the version-main variable by fastboot getvar version-main command. Sample input and output below: fastboot getvar version-main version-main: 4.21.69.4 What ...
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0answers
7 views

does rooting LG ally with gingerbreak stop fastboot access?

Hi I am trying to root my LG ally (2.2.2) using gingerbreak and I keep on hearing that it prevents the usage of fastboot so Im wondering if that is true and what I can do about it?
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2answers
87 views

How to unlock my HTC desire 816 w after too many pattern attempts?

I got my phone locked after too many pattern attempts. Now it is asking me to enter my Gmail credentials. I tried that too but nothing is happening. I have active data service but it is not enabled ...
0
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1answer
68 views

Nexus 10 / Android 5: recovery broken, fastboot not working

So I have broken the software of yet another Google device, this time a Nexus 10, manta. What I did: - tried to install Ubuntu like so. It failed with 2015/07/18 01:20:36 Cache formatting was not ...
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0answers
42 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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0answers
75 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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0answers
103 views

fastboot flash works but does nothing (moto g)

My moto g get stucked on a blank screen after the motorola logo animation. I tried going into the recovery and wiping data and cache. Nothing happened. I tried unlocking the bootloader --> No ...
2
votes
0answers
40 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 ...
0
votes
1answer
855 views

Fastboot permission denied error in Asus Zenfone 2

I went into regular recovery mode to wipe cache and do factory reset to flash clean Asus ROM from XDA. I first went to wipe cache and it felt like it was taking way too long, so I turned off the phone ...
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0answers
120 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 ...
0
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1answer
432 views

remote: Permission Denied Asus Zenfone 2

I recently (dumbly) removed my internal through TWRP on my Asus Zenfone 2 whilst trying to flash SuperZen from xda. So now I'm attempting to go back to stock, and I've tried doing a factory reset with ...
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0answers
248 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 ...
1
vote
2answers
186 views

What does “Archive does not contain 'android-something.txt'” mean?

So I am trying to flash my OnePlus One with CM12s through fastboot on command prompt, but whenever I type fastboot update romname.zip I am presented with: archive does not contain 'android-info.txt' ...
0
votes
2answers
287 views

Fastboot poweroff command

Is there a way to shutdown my Mate7 from fastboot? Long pressing the power button makes the phone restart again. I need to shut it down so I can recharge it then restore to stock.
1
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0answers
209 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" ...
1
vote
0answers
187 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 ...
1
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0answers
60 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 ...
2
votes
0answers
193 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 ...
0
votes
1answer
250 views

Xperia M dual stuck at boot screen after unlocking bootloader!

Help needed it's urgent. So I have unlocked bootloader successfully via fastboot. Everything went fine until the end without any error. So I disconnected the device from PC and rebooted it and now it ...
0
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0answers
130 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, ...
0
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0answers
41 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 ...
7
votes
1answer
14k views

How to Retrieve SD Card Files via fastboot or recovery?

I have a Nexus 4 (LG E960) running rooted stock 4.2.2/JDQ39. The phone fell from a foot high and the screen cracked. The touchscreen no longer works. I have a full Nandroid (TWRP type) backup under ...
0
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1answer
23 views

When should I use/not use '-w' for fastboot flashing?

When should I use/not use '-w' for fastboot flashing? Say I were to be manually flashing each img in the zip of a factory image. Why one way or another? Do certain .img's need to be erased first? I ...