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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recovery does not recognise / mount SD card

As reported in an earlier post, I have rooted my HTC Desire Bravo with tacoroot and revolutionary, and my idea was to install a recovery ROM via the SD card. The problem is that neither ClockworkMod ...
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1answer
37 views

ADB is working, fastboot is not (HTC Desire Z)

The adb devices command is working for me, the fastboot devices command is not (Mac OS X Mavericks, SDK downloaded yesterday, phone is a HTC Desire Z): $ sudo fastboot -i 0x0bb4 -p 0x0c91 devices $ ...
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1answer
68 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 ...
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0answers
8 views

Is it possible to unlock the Motorola moto g KXB21.14-L1.41 without official unlock code? [duplicate]

The motorola website for unlocking your boot loader tells me that there are no unlock codes for my phone. Does this mean that this phone cannot be rooted? I refuse to accept that. There must be a way ...
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0answers
103 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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1answer
68 views

Connect to Sony Xperia M Dual with adb/fastboot

I want to ask how to install custom rom on Xperia M Dual I had tried adb and fastboot command in cmd but it shows waiting for device.. Help me please I'm too frustrated
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0answers
45 views

formatted phone storage. Is phone dead? How to revive?

i booted my android phone to enter into fastboot mode and connected to PC by USB. Then a dialog box appeared to format the disk (internal storage memory i hope). I accidently clicked Format ...
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0answers
48 views

Fastboot kernel command line parameters

I wanted to use the recovery.img without actually flashing it in my phone. However, when I give fastboot boot recovery.img or fastboot boot recovery recovery.img in my machine, it shows downloading ...
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2answers
61 views

Failed to load Recovery mode

One of my friend had a Huawei Y210, it locked because of so many wrong pattern attempt. Unfortunately he hasn't google account to login with it. I want to hard reset it but it fails to load Recovery ...
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0answers
61 views

My LGG2 is stuck in fastboot and not showing up on the PC

I have tried to add Cyanogen Mod 12 to my LGG2 and flashed my recovery and now it is stuck in fast boot. I have looked everywhere nobody has an answer the phone does not come up on my computer as a ...
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0answers
595 views

Moto g 2nd gen, lollipop bootloader unlock issue

I have just bought Moto G 2nd generation smart phone with 16 gb internal memory. To root device, I tried to unlock bootloader. But it didn't go smooth. When I hit command fastboot oem unlock ...
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0answers
70 views

MT27i Sony Xperia Sola bootloader unlock on Ubuntu [on hold]

I'm using Ubuntu 14.10 64bit. I think this is a problem with the fastboot program. The device is Sony Xperia Sola (MT27I) and has the Stock firmware installed. I'm following the tutorial to unlock the ...
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0answers
114 views

HTC One M8 is stuck on bootloader and won't accept “adb * mods”

I have HTC One M8 that has been rooted, but relocked and S-OFF. I have also tried fastboot flash boot boot.img and then I get this message everytime. sending 'boot' <8624 KB> ... FAILED ...
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1answer
90 views

adb does not reboot my Samsung Galaxy SIII I9300 to bootloader (download) mode!

My device is Samsung Galaxy S3 I9300 and I did a complete factory reset. Device is NOT rooted yet. It works properly. I can do all of following with my device: Power off using device keys. Start ...
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1answer
129 views

Installing TWRP on a Samsung device, no fastboot (using ADB or other ways)

My device (Samsung Galaxy S3 I9300) is not detected by fastboot in Download Mode, but it is detected properly by adb. I want to install TWRP as my device recovery. Is there any way to install it using ...
1
vote
1answer
247 views

Samsung Galaxy S3 I9300 is not detected by fastboot under Ubuntu 14.04

When I connect my device in Download mode to my laptop, it is not detected by neither adb nor fastboot commands: fastboot devices and sudo fastboot devices returns nothing when device is connected ...
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0answers
88 views

how to flash my memopad me170c without droidboot

i try to flash my device but fast boot recovery bricked now i cant open droid boot or android Os. when i try to power on device an USB logo show in the screen and device powered off in 1 second. in my ...
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0answers
36 views

device not loading into bootloader

I am trying to boot my rooted android device into bootloader to unlock it. I have tried following commands but none is working. adb reboot-bootloader adb reboot bootloader Even when trying to ...
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0answers
173 views

Fastboot Commands Via Update.zip To Unlock Pattern Lock on Asus Transformer FT201

I purchased an Asus Transformer Prime TF201 a couple years ago. I added a pattern lock on this tablet so our kids would not use it all the time. One of them decied to try the pattern too many times. ...
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0answers
194 views

Update and then root Infocus M512. Device Found but is offline. Can't enter Fastboot

I am having a really frustrating time updating the firmware on an Infocus M512 as a prelude to then rooting it. I am using the (flawed but usable) how to at this site, ...
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0answers
26 views

How to unbrick Nexus 4 after flashing compiled Android?

Today I compiled Android from source as explained following Google's instructions starting at https://source.android.com/source/initializing.html. After flashing the compiled image onto the device ...
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0answers
105 views

Get HTC Desire HD into recovery / fastboot / adb with dead volume keys

So my friend tried installing a custom rom on his phone resulting in bricking it. He gave it to me to try to fix it. The phone is a HTC Desire HD with physically broken volume buttons, so I can't get ...
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1answer
75 views

LG - Fastboot doesn't recognize my device

I'm trying to get flash a custom recovery on my LG p760, however when I type fastboot devices in the command prompt (while booted into fastboot mode) nothing shows up. adb devices works fine though. I ...
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2answers
227 views

fastboot flash = FAILED (remote: invalid bootloader image)

After breaking CyanogenMod on my Nexus 5 I want to flash it with a factory image but all I get is: fastboot flash bootloader bootloader-flounder-3.43.0.0114.img sending 'bootloader' (2970 KB)... OKAY ...
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1answer
262 views

No recovery mode .. Stuck in Fastboot mode (RAMDUMP)

i have my cherry mobile Omega spectrum .. i was supposed to reboot my phone after installing a custom i can't find any answers in my group so i decided to post here about this problem anyone here ...
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1answer
404 views

What are all the functions of fastboot on android 4.4.4?

I have recently been able to access fastboot but I have almost no knowledge about the different options inside it. Could someone please explain in details all the functions of fastboot? Extra info ...
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1answer
361 views

Can't flash recovery via fastboot

I have a asus tablet TF300T and I am trying to flash CM11 rom. I am following procedure from official CM pages http://wiki.cyanogenmod.org/w/Install_CM_for_tf300t, but I am stuck with flashing custom ...
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1answer
48 views

LG Optimus G fastboot not working

Alright, I have an LG Optimus G that I'm playing around with and trying to install ubuntu on. I'm following this guide I've done everything up to the point where you enter this into the terminal: $ ...
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0answers
2k 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
207 views

Mac OS X fastboot is just waiting (HTC M8 T-Mobile)

I'm trying to run fastboot oem get_identifier_token on Mac OS X Yosemite but I get stuck on "< waiting for device >": ➜ platform-tools ./adb devices * daemon not running. starting it now on port ...
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0answers
31 views

Fastboot cannot flash recovery partition [duplicate]

I recently tried to upload a recovery to my Tracer Oxygen GS 3, but now it starts up, shows the Tracer logo and reboots the phone. I can enter into fastboot and flash system, chache, boot, and ...
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0answers
216 views

Nexus 7 (2013) stuck on Google logo after manual flash of Lollipop

A few weeks ago, before the OTA release of Lollilpop for my Nexus 7, I booted into fastboot mode and manually flashed the razor factory images for Android 5.0. Everything worked fine until the N7 ...
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1answer
2k views

Bricked my TF300T: How to re-partition internal storage to get it back?

I upgraded to Katkiss's Android 5.0 image. It was nice but in reading I saw I could use the F2FS file system to prevent slowdown from normal usage. So I went to format /data thinking that would give ...
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0answers
45 views

Flashed system partition differs subtly from system.img

When I flash my Nexus 7 2013 with a rebuilt aosp system.img using fastboot, the data in the partition (as read back by dd) is very slightly different from the system.img data used to flash it. A block ...
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1answer
304 views

Fastboot flash recovery failed in adroid ZTE kis Q. Several methods tried [duplicate]

I'm trying to root my android using adb from a linux distro. When I run fastboot flash recovery recovery-clockwork-5.0.2.0-blade.img I get > sending 'recovery' (3768 KB)... OKAY [ 0.142s] writing ...
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1answer
335 views

Trying to flash CWM but fastboot hangs at “writing 'recovery'…”

I'm trying to flash my Coolpad 8865u (Vodafone Smart 4 Turbo). I unlocked fastboot and fastboot oem device-info confirms this. However when I try to flash CWM the prompt on my shell hangs at "writing ...
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3answers
10k views

fastboot flash bootloader = FAILED (remote: (InvalidState))

I'm trying to flash bootloader on my Nexus 7 (2012) and getting FAILED: mbp:nakasi-lrx21p alexus$ fastboot flash bootloader bootloader-grouper-4.23.img sending 'bootloader' (2100 KB)... OKAY [ ...
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0answers
138 views

adb reboot recovery no longer workiing

MY tablet was on bootloop using android sdk adb reboot recovery solved the problem now mY tablet is back on bootloop adb reboot recovery just reboot to bootloop i can not access the recovery menu ...
3
votes
6answers
13k views

Nexus 10 stuck in bootloop after Lollipop flash no ADB and no Fastboot

So .... I flashed the mantaray-lrx21p image from Nexus Factory Images on my Nexus 10 (16GB Wifi) and it's stuck in a bootloop. No problem, I thought, I can get into fastboot and fix it, right? Maybe ...
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0answers
89 views

fastboot flash recovery recovery.img

my phone is samsug galaxy s7562 duos it dosn't work and can't boot into normal mode or download mode or recovery mode it just can boot ito fastboot mode iam trying this command fastboot flash boot ...
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0answers
132 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 ...
0
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0answers
269 views

How To Recover From Bootloop after installing fonts, dont have custom recovery and stock rom?

I am using Panasonic T11, it is rooted but do not have custom recovery mode like CWM, My problem is: after installing a custom font my device stucked in bootloop, i have adb, but i dont know how to ...
0
votes
1answer
1k 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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1answer
1k views

Can I fastboot flash a factory image without flashing the recovery?

Factory Images Using Nexus 9 as an example, the flash-all.bat contains: fastboot flash bootloader bootloader-flounder-3.43.0.0114.img fastboot reboot-bootloader ping -n 5 127.0.0.1 >nul fastboot ...
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0answers
391 views

Tablet listed under adb devices, but not under lsusb while in recovery

I am working with a Gemini devices GEM1000 tablet, I have performed all the steps to get adb working, and the device shows up under 'adb devices' so I go to the bootloader with 'adb reboot bootloader' ...
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0answers
124 views

Can I root karbonn titanium S1 plus with the kingo root app?

I just want to make sure that I can root my karbonn titanium s1 plus with the kingo root app cuz I dont want A bricked phone. Please help. And also, I have asked a question on how to fastboot karbonn ...
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0answers
165 views

unlock bootloader Micromax A310

I am trying to unlock bootloader in my Micromax A310. It has MT6592 processor. Whenever I start the mobile in fasboot tmode it got stuck and only shows => FASTBOOT mode ... => FASTBOOT mode ... in ...
2
votes
1answer
2k views

Nexus 7 in Fastboot (recovery) not activating USB connection

I realise this is asked countless times but I genuinely believe my question is unique, please bare with me as I explain. My Nexus7 (2013) is not working in fastboot mode, I connect my Nexus 7 and run ...
0
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0answers
125 views

How to i fastboot karbonn titanium s1 plus

I want to root my android device and for that I have to enter fastboot mode in my karbonn titanium s1 plus. I tried pressing the volume up key and the power key while booting but nothing. It just ...
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0answers
344 views

Unlock bootloader for Lenovo A1000-T

How did you go into fastboot mode? I am not able to figure out. adb reboot bootloader adb reboot-bootloader adb reboot fastboot None of them worked, However adb reboot recovery opens it in ...