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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Install different recovery from CWM?

I'm trying to switch from CWM recovery to TWRP, my phone is a LG Optimus 4X HD / LG P880. Using Simple Recovery Switcher, I tried to flash the TWRP image, but when I reboot into recovery, I get into ...
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34 views

How to install update.app via fastboot when device is brick

I have an android 5.1 lolipop update.app for Huawei honor 4c. I installed it via settings -> updates -> local updates and it installed successfully. After installing custom rom my device is full ...
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21 views

Honor 4c full brick [closed]

My Huawei Honor 4c is full brick. I updated it to loliopp then tried to downgrade it to kitkat during that device is full brick. I connected device in fastboot mode then installed boot.img , ...
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39 views

Cannot enter fastboot mode after flashing custom recovery

I flashed a CWM recovery on my Micromax Q380 (Canvas Spark) phone. After that only logo appears and it reboots again and again (boot loop). I tried entering into recovery and fastboot (Vol Up + Power ...
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1answer
33 views

OPO stuck in “Erasing…” while unlocking bootloader

I've been following this guide about rooting my OnePlus One. All seemed fine - adb was good, fastboot as well - and I reached point 6.1. Typed in fastboot oem unlock and got this output: ... OKAY [ ...
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0answers
36 views

Nexus 9, no recovery, no USB debugging, OEM locked in Settings

I've got a pretty complex problem. At the moment: Nexus 9 WiFi Tablet, USB Debugging not enabled Normal Startup: Android laying on the floor Startup with Power+Volume Down: Fastboot Bootloader ...
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0answers
36 views

Fastboot “waiting for device”

I have an galaxy s4 i33 that I need to have upgraded for work (or buy a new phone.) On both windows and Linux I can type "adb reboot bootloader" to open the bootloader. However, in windows: -Odin ...
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0answers
46 views

Windows 10/ADB/Fastboot not detecting Droid Turbo in fastboot mode

I recently tried to root my phone, and as you know the Droid Turbo is very hard to root. So I tried to use the TWRP recovery method. But when I try to use ADB or Fastboot to even list my device, it ...
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0answers
69 views

HTC DESIRE 310 - unlock bootloader problem can't fastboot oem get_identifier_token

The devices is connect on screen my HTC Desire 310 I have: On computer in cmd fastboot can see device but fastboot oem get_identifier_token not work : and nothing more What is wrong? Please ...
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0answers
22 views

Moto G Google App uninstalled - phone wont start!

HELP! I'm new here and to ANdroid..d I uninstalled the google app on Moto G to try and get rid of the google search bar on home screen.... but after this the homescreens dont load up... so I ...
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1answer
30 views

Nexus 7 Google Logo Boot-Loop

My stock Nexus 7 was working fine until I turned it on. The lock screen was frozen. I then hard reset the device and turned it back on. On boot the tablet gets stuck on the Google logo and never ...
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0answers
53 views

Android Nexus 5 “Reboot&Wipe loop with hang” — Can't flash system

My Nexus 5 recently "soft-bricked" itself on an update, and I can't seem to get traditional methods via adb/fastboot (windows pc) to work. My phone is unlocked, and I have the necessary files in the ...
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0answers
83 views

What are the implications of doing fastboot erase modemst1?

I installed a Cyanogenmod 12.1 snapshot on my Moto G 2014 when I got it, it previously has only had the stock ROM installed, no other custom ROMs. I soon discovered that the GPS wasn't working on ...
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0answers
43 views

Cant relock bootloader

I tried to relock bootloader in Xperia Z2 with flashtool, but it didn't work. With fastboot it stuck for long time: Screenshot (click to enlarge) Am I doing anything wrong? How should I proceed?
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76 views

Install TWRP recovery in soft bricked alcatel OT 6012x

My phone isn't booting up and stuck on the manufacturer logo . Actually i need to unbrick the phone using a custom rom flashing , So i tried to install a TWRP recovery by using SP Flash tool but ...
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votes
1answer
37 views

Oneplus One stuck in Fastboot mode, no power button!

as the title suggests, my OnePlus One is stuck in Fastboot mode and doesn't have a working power button. It came unplugged and since being plugged back in isn't appearing under adb devices. Is there ...
2
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0answers
39 views

Mounting encrypted partition from PC - is there anything I can do?

Okay, so basically I have the same problem identified here, except instead of a broken screen, I accidentally broke the UI with this bug. And all I want to do is mount the encrypted partition so I ...
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0answers
35 views

I can't use the volume keys in fastboot after using the command fastboot oem unlock

I am trying to unlock the bootloader of my ZTE Blade V6/D6 using fastboot oem unlock. When I get to the stage that gives me the option to select yes or no using the volume up or down buttons ...
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1answer
55 views

How can I unbrick a phone without being able to access recovery?

I have rooted my Zenfone 2 ZE551ML using a method which permanently replaces recovery (I didn't realize it back then). Can I unbrick it using only fastboot? I can't use adb, as I can't open recovery. ...
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0answers
27 views

How to use “nvflash” to make new partition?

days ago i made a new partition table by using "adb shell(parted)". And now even recovery and "fastboot" both are missing. But it can connection to my computer and i am thinking maybe i can use "apx ...
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1answer
44 views

MotoG won't proceed after Blue M Screen after Cache Wipe& Factory Reset

Ive been using this MotoG for 2 years now. Recently, all the Apps started to Crash on opening and on Restarting the Phone it would always show the "Optimizing xx Apps of xx" .I then did a factory ...
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1answer
167 views

android won't factory reset

so, i've been having trouble with my phone lately so i decided to back up my data and factory reset, but every time i wan't to do it the ''reset phone'' button does not work, i can't even press it, i ...
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0answers
23 views

Is there a way to prevent access to recovery or prevent access to fastboot?

I have couple of Motorola phones and some samsung tablets.. I have installed Cyanogen Mod in all of them except 1 Motorla G 2015. Moto G doesnt have bootloader unlocked so its safe... I want to ...
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0answers
27 views

Old android tablet boot stuck

I have an old Omega mid7002 tab and it is stuck on "android" boot screen. I've tried hard reset with all possible key combination without success. But I'am able to connect via adb, so my pc ...
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0answers
67 views

cannot install twrp on android nexus 6p

so i want to root my phone by first installing a custom recovery (twrp) following instructions here.. but as soon as i run this command fastboot flash recovery twrp.img i get this: target ...
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1answer
525 views

Methods of checking bootloader status

Just curious if there's any methods to check bootloader state besides using fastboot. I ask because on my device, even after unlocking successfully, the bootloader still shows that its locked when ...
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1answer
100 views

Does “fastboot oem lock” prompt to confirm?

I want to run fastboot oem lock (or fastboot flashing lock) on my Oppo Find 7 to see if I can reproduce the behavior in this post. However, I don't actually want to go through with the bootloader ...
3
votes
1answer
202 views

Fail to install CM13 on Oppo Find 7a

I would like to install Cyanogenmod 13 on my Oppo Find 7a. I am following the instructions from CM wiki. I am using a laptop with Linux (LMDE2). I fail to install a TWRP recovery. Fastboot seems to ...
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0answers
87 views

Kindle Fire HD Stuck - Recovery broken and cant acess fastboot

Ive had my Kindle Fire HD for quite a while now. I rooted it about 9 months ago and its been working fine. I now want to do a system reset and a bit more hacking on it. When i go to factory-reset my ...
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0answers
34 views

How can I find out if the Bootloader is locked or not? [duplicate]

Is there a direct way to find out if the bootloader on a new unrooted device is currently locked or not? I would like to do this without the risk of clearing or bricking the device. I am looking for ...
1
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1answer
704 views

can fastboot be used to backup device?

Many people tell about fastboot that it can be used to flash a image on one of the partitions. Is the reverse also possible, that is take a binary snapshot and store it as a zip file containig the ...
0
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1answer
187 views

HTC One M7 stuck on boot

I have a HTC One M7 since 2 years. I got a software update in December and i tried to update it and somehow after the update the phone showed me errors. So back then i did a recovery and the phone ...
0
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1answer
151 views

Fastboot is not providing a token when trying to unlock HTC One M9

I am trying to unlock my HTC One M9 following the instructions on the HTCdev website. When I get to the part where you're supposed to obtain the identifier token, it doesn't give me any errors, but it ...
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votes
2answers
77 views

device not showing in fastboot

I have a Samsung Galaxy Tab 3 (GT-P5210GNYXAR) currently with NO OS (I completely wiped the tablet in TWRP.) However, I did root the device, so now it has the TWRP thing. I tried installing the ...
1
vote
1answer
194 views

boot loop after flashing partitions from stock firmware

I have Arch linux installed and have installed android-tools(so fastboot and adb commands are available). Because I had a problem with kingroot I needed to flash the phone to stock. I had stock ...
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0answers
200 views

Nexus 5x stuck on Google logo

First time that I've been lost about how to fix an android device. In short, I tried updating the my device to the latest cm13 nightly but that ended up causing the Google logo loop (wouldn't boot ...
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0answers
233 views

Sony Xperia Z5 Premium recovery or fastboot or bootloader mode key combination

I have a Sony Xperia Z5 Premium which cannot get past the "Starting Applications" spinner. I would like to put the device into fastboot/recovery/bootloader mode, but pressing Volume down and Power ...
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68 views

Fastboot Flash Recovery HTC Pico Bad file descriptor

My device is HTC Explorer (Pico) Desktop is Ubuntu 14.04 64 bit My device is rooted already. I am trying to flash TWRP Recovery My device is detected alright $ fastboot devices SH1BRVN****** ...
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63 views

adb option like fastboot -i <vendorid>?

Hi I was wondering if there was a command similar to fastboot's -i in adb. I'm currently trying to find my device in adb, but I could only target the device in fastboot with -i and the vendor id (I ...
2
votes
1answer
672 views

Fastboot doesn't see nexus 6p

Currently trying to unlock my bootloader, but cannot get my nexus 6p to determine that it's connected to my PC. I can use adb commands while it's on, but booting it into fastboot mode with the adb ...
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0answers
49 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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votes
1answer
151 views

Cannot unlock bootloader of my OnePlus 2 with oem unlock

I want to flash my OnePlus 2, as it's stuck on the boot logo. For this, I first need to unlock the bootloader, but I can't: the adb command tells me I have to check "oem unlock" in the phone settings. ...
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vote
1answer
105 views

Wondering if i can debloat some google apps from unrooted lg phone for my father?

My father being older does not want to modify his phone, however he has a LG L70 and no sd card, and doesn't use some unnecessary Google apps, such as play, books, and whatever else. My question is ...
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0answers
181 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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1answer
293 views

Backup/flash system and data without unlocking bootloader?

I was wondering if I can make a full backup of my system partition via fastboot or adb and re-apply the backup to a different phone of the exact same model? Or is this only possible if the bootloader ...
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1answer
48 views

I flashed recoveries with Odin, why doesn't my phone boot bow?

Samsung S3 Android phone, not rooted, stock firmware. In chronological order: I turned on USB debugging, although could not use fastboot. I used Odin to flash multiple recoveries, but I don't think I ...
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0answers
52 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 ...
1
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1answer
611 views

flashing twrp on lg g4 no error, but no twrp

I'm trying to flash twrp to my lg g4. I've reached the part where I run fastboot flash recovery twrp.img And everything seems to work fine, but when I try to enter recovery mode, I get the default ...
2
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0answers
222 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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0answers
44 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 ...