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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Flash motoboot.IMG without computer

I need to upgrade my bootloader for lollipop, problem is my laptop is being repaired at the moment... Is there any way I can flash motoboot.img without a computer? I have root, Philz advanced ...
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75 views

Moto G does not turn on after updating to KitKat 4.4.4

I have rooted and unlocked the bootloader on my Moto G. After that, I updated it to KitKat 4.4.4, but it does not power on. Fast boot mode cannot turn on too, I haven't tried anything yet. How to fix ...
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0answers
1k views

Blank screen after logo

I was trying to install a custom ROM in a THL T11 from needrom.com. I managed to get into the recovery mode and wipe cache. However, I got somehow into the «ADB» menu and couldn't get out. I pulled ...
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1answer
93 views

How can I enter Fastboot or Recovery mode on the eSTAR X35?

My eSTAR X35 is stuck in a bootloop and I can't reach fastboot mode. How can I get there or into Recovery mode?
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0answers
94 views

unable to flash bootloader on nexus 5

LG Nexus 5, LG D820 Andoid 5.1.0 LMY47D Issue: My phone doesn't boot up, it is stuck on the 'flying colors' screen I have done below steps: Wiped data/factory reset on my Nexus 5 fastboot oem ...
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0answers
130 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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5answers
31k views

ADB can discover devices but not fastboot

I've searched on the web about this problem and it's usually solved by installing the appropriate drivers. Problem is I'm on a Mac. When I plug in my device, it can be discovered when I run adb ...
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0answers
197 views

Cannot Upgrade Firmware after Accidentally bricked my Sky Vega IM-A800s

I'm trying to install a custom ROM on my Sky Vega A800s. First I tried to use fastboot to flash the A800S_CWMrecovery_6.0.1.2 recovery image, but when I try to boot my phone into recovery mode it ...
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0answers
160 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 ...
2
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0answers
215 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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0answers
831 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
4k views

Nexus 5 gives Status 7 error when flashing 5.1 OTA [duplicate]

I've been trying all day to install 5.1 OTA via ADB. In my struggle, I tried installing TWRP to try to get it to work, but it didn't. I since flashed the stock recovery. When trying to flash via ADB, ...
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0answers
76 views

Update Android on HTC Evo 4G

I have a rooted FreedomPop HTC Evo 4G PC36100 with CyanogenMod 2.6.37.6. My Android version is 2.3.7. Beseband version is 2.15.00.01.15. How can I update Android to the latest version? Is it ...
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1answer
47 views

is fastboot a part of firmware

I was thinking of installing kali linux on my phone but before that I just had few doubts. Is fastboot a part of firmware and can any one overwrite it to brick my phone?
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1answer
140 views

Fastboot devices returns nothing

I have Asus Fonepad 7 dual sim (Build ver. 5.5.1). I want to root my device. adb devices recognizes my device properly. Debugging mode is on. Even device enters in fastboot mode by ...
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2answers
1k views

Fastboot doesn't recognize Nexus 5 on L

I recently flashed the dev preview of android L on my Nexus 5, however, I did what is called a "dirty flash" - I just used TWRP and flashed the image as if it was a normal ROM. The result is that it's ...
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1answer
232 views

After updating to 5.1, phone wont get past black “Google” screen

Last night I upgraded to 5.1 via the built-in update functionality. This phone is not rooted. Well, now my phone won't get past the black screen with the white "Google" logo when I try and boot it ...
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3answers
16k 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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1answer
282 views

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 ...
0
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1answer
1k views

Is it possible to unlock the bootloader without root access?

Is it possible to unlock the bootloader without root access? If so, is there another way to unlock the bootloader without using the command... fastboot oem unlock Now, for the background stuff ...
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0answers
2k views

Acer Iconia Bricked with reboot loop after root attempt

I attempted to root my Acer Iconia B1-A71 tablet and ended up bricking it because of not installing the partition fix apk (Bad tutorial). The tablet is currently in a reboot loop and I've tried so ...
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2answers
30k views

Unlock bootloader using fastboot using Ubuntu/Linux

I am trying to unlock bootloader for my HTC Legend. I have ADT (Android SDK according to release 21.1) on my Ubuntu/Linux box. While following the HTCDev instructions to unlock bootloader of HTC ...
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0answers
1k 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
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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1answer
444 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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4answers
34k views

What does “fastboot oem lock” do?

I've had my phone for months, loading with several firmware, ROMs and OTAs, without ever running this command. What does it do? What I know is that "fastboot oem unlock" displays the confirmation ...
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0answers
249 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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votes
2answers
21k views

Obtaining root by modifying default.prop(ro.secure)?

To get a privileged shell you need to modify the following lines to the given values in the default.prop file ro.secure=0 ro.debuggable=1 persist.service.adb.enable=1 I have the extracted the ...
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2answers
374 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 ...
1
vote
1answer
3k views

ADB/fastboot over Serial/COM ports?

Long story short, my phone messed up and it's stuck in a bootloop. The phone in question is a Coolpad 7560U, also known as Orange Nivo, running Android 4.1.2 Jelly Bean. Data and cache wiping do not ...
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3answers
15k views

Trying to restore photos from a broken S4 (AT&T), how do I go about it?

My friend broke her S4's screen, and wants to get back the photos from the internal memory. The phone does not have USB debugging turned on, so having it attached to the computer only charges it. The ...
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1answer
210 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 ...
0
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0answers
227 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 ...
0
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1answer
423 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 ...
0
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1answer
5k views

Fastboot flash bootloader fails

I tried to install CM11 on my Nexus 10. But, I wasn't able to install the boot.img with fastboot (Rooted, CM11 flashed with Clockworkmod recovery): [root@xx temp]# fastboot flash bootloader boot.img ...
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1answer
768 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
209 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 ...
0
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0answers
68 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 ...
0
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0answers
592 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. ...
0
votes
0answers
430 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, ...
0
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0answers
39 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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3answers
23k 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 ...
0
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0answers
202 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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0answers
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 ...
0
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1answer
182 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
1k 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 ...
4
votes
1answer
7k 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 ...
3
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0answers
4k views

HTC Sensation fastboot unknown device

i want to apologize because i think you get this question a lot, but i experience problems trying to root my HTC Sensation. I turned USB Debugging ON, checked that Fast boot is turned ON in Settings ...
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vote
1answer
157 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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vote
1answer
1k 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 ...