The bootloader is started shortly after the device's basic checks and is responsible for loading the Android OS. It can be used to boot different rooms besides the stock firmware, if the bootloader is unlocked.

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9 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
10 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
21 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 ...
0
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0answers
14 views

Rooted Nexus 5 lollipop GOOGLE start screen won' turn on

since I rooted my nexus I and couldn't make screenshots anymore. So I decided to go and check if I could fix it in Recovery mode. I couldn't find anything about it so i wanted to turn it back on. it ...
0
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0answers
15 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
67 views

phone on bootloop with a problem in the cache

My phone somehow got stuck in a boot loop and I can't fix it. I don't know what to do. I cant get pass the start up animation no matter what I do. I've tried the fast boot commands to flash and keep ...
0
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0answers
56 views

Need help unlocking my bootloader on HTC Desire 310

EDIT: It has failed with a too many links error This christmas I was treated to a HTC Desire 310 and I am trying to root it which I understand needs the bootloader unlocked. That is where my issue ...
0
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0answers
44 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 ...
0
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2answers
65 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 ...
0
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0answers
14 views

Unable to maintain download mode

i have just been given a Samsung Galaxy S3 mini to flash, but i cant maintain the download mode, when i do the key combination (volume down + home + power) it simply flashes the download mode and gets ...
0
votes
1answer
332 views

LG Optimus 4X HD - unlock bootloader?

I have just rooted the LG Optimus 4X HD using instructions I found at How to root the LG Optimus 4X (LG-P880)? I now need to unlock the bootloader, but for some reason the command adb reboot ...
1
vote
1answer
63 views

boot process recovery or rom

When I power my device (htc one m8) on and press the volume down key I get into recovery. Now which part of the booting process checks if this key is pressed and uses the correct partiton (boot or ...
0
votes
1answer
2k views

Nexus 7 Error: Failed to mount /cache

I had a problem with my Nexus 7 (2013, 2nd gen) tablet. I restarted my tablet and when it was rebooting again, it showed "Google" logo and then stood there. I wait it (around 20 minutes) but it did ...
0
votes
1answer
88 views

All partitions wiped, USB Debugging was not enabled, ADB and fastboot can not see Nexus 5

I got my shiny new Nexus 5 a couple of weeks ago and decided i wanted to root. I rooted using fastboot on my Ubuntu box. I then installed MultiRom and from there I installed Ubuntu touch. ...
1
vote
0answers
148 views

Unlock bootloader using Ubuntu/Linux

I'm trying to root the device name: Overmax SteelCore 10+ to install ubuntu touch. When i use $ adb devices sometimes i get: 0123456789ABCDEF DEVICE and when i type to reboot ...
0
votes
2answers
114 views

Is there any way to put a password to avoid someone from hard resetting my phone?

I have a Moto G, and I am very careful in protecting my data. I currently use CM Security App from the Google Play Store and it's very helpful in taking a photo to a person who tried unlocking my ...
0
votes
0answers
56 views

ZTE Skate Acqua stuck on phone company logo

So, I was just restarting my ZTE Skate Acqua (it was getting really slow) and now it isn't turning on. It gets stuck on the phone company logo. I have noticed that during the transition from the ...
2
votes
1answer
641 views

Nexus 5 IMEI number gone after updating

My IMEI number has disappeared on my Nexus 5 and now can not call or text . Status of the phone says: Network: Unknown Mobile network type Unknown Service State: Out of service Mobile network ...
1
vote
0answers
152 views

Any way to get root without a custom recovery? (Unlocked bootloader)

I have a phone with an unlocked bootloader (Motorola Moto Maxx XT1225) but there's no custom recovery available for it yet. Is there any way to get root/flash super su without a custom recovery? Or ...
2
votes
2answers
7k views

Nexus 5 stuck on “flying color dots lollipop” screen after Hard Factory Reset

I just did a wipe data/factory reset on my Nexus 5. I followed this YouTube tutorial. I'm stuck on the boot screen, which was my problem in the first place, and it's been on the boot screen for 25 ...
1
vote
0answers
151 views

Obtaining boot.img for unrooted device?

I have a Vodafone Smart 4 Turbo / Coolpad 8865U. I cannot find other means of rooting it and to be honest I don't trust most oneclickroot.apks. I am trying to root it manually but I cannot find a way ...
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votes
1answer
38 views

Can you explain the boot order of an Android device? [duplicate]

I understand a good bit of the ARM system architecture. you have an ARM system on chip containing the CPU, GPU, peripherial devices, baseband processor and both CPU and Radio firmware. Supposedly the ...
0
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0answers
97 views

problems unlocking bootloader of xperia z3

i'm trying to unlock bootloader of my xperia z3 but i'm encountering problems. I followed the instructions on sony's site and i got to the point where i have to connect the phone in fastboot mode to ...
0
votes
1answer
40 views

Is it possible to install Android 3.0 on my Android 2.3.6 Huawei m865c?

The title essentially explains my dilemma, but should I be able to, is it possible to install it via my BootLoader?
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1answer
147 views

Android Lolipop broke my enyrpted nexus 7 (2012)

I just received the update and now my device does not boot any more. I comes to the point where I have to enter my encryption password. The first time it did this it said: “Unfortunately your ...
3
votes
6answers
12k 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 ...
0
votes
1answer
746 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 ...
1
vote
1answer
40 views

I don't have the right HBOOT version, can I still install Cyangenmod?

I ran adb reboot bootloader on my HTC Sensation XE and it states that the version is 1.29.0000 According to the wiki I must have version 1.17.0006, .0008, .0011 and .0012, 1.18.0000?
1
vote
3answers
923 views

How to re lock bootloader on samsung galaxy s5?

I have Unlocked Rooted Samsung Galaxy S5 recently it has been giving me a lot of issues and I want to send it to Samsung for repair meant. I understand that once you root your device you loose the ...
0
votes
0answers
283 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' ...
0
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0answers
820 views

Extracting code from lk.bin (little kernel binary file) & preloader.bin - MTK6572, mediatek

This is a changed question from the original, since nobody seemed to have answered, found most of the answer on my own. As stated before, wanted to fix my userdata and fat area blocks after hacking ...
2
votes
0answers
111 views

Nexus 7 2013 crashes when in boot loader. How do I flash a new image to it?

I have a Nexus 7 2013 which I'm trying to flash the Android Lollipop preview image to. It's currently running the last Android L preview image. Whenever I boot the device to the bootloader screen ...
0
votes
1answer
108 views

Nexus 7 wont appear on my PC in the bootloader, semi bricked

So I tried to root my nexus 7. I realized I done screwed up. However, when I looked for my SuperSU installed file in TWRP, I forgot to install it before hand, when I was at my bootloader, or before ...
1
vote
0answers
398 views

Can I flash a custom boot.img to Nexus 5 when “Secure Boot” is enabled?

I have compiled the Android Linux kernel for Nexus 5 with some modifications. My phone is LG Nexus 5, whose bootloader has been unlocked, but the "Secure Boot" is still enabled. As I understand, ...
0
votes
0answers
282 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 ...
0
votes
0answers
676 views

Nexus 7 2013 Bricked. Won't boot, won't flash stock image, won't unlock bootloader

So I have the following problem: I have a Nexus 7 2013 locked and un-rooted. After turn it off the boot won't go after the Google logo. I tried pretty much every solution founded online: wipe cache ...
0
votes
1answer
27 views

What is the minimum number of modifications in order to install a custom ROM?

I am planning to upgrade my wife's Galaxy Ace II from 4.1.2 (the latest official firmware offered by Samsung, installed via Kies) to 4.4.4, which is available via http://novafusion.pl/downloads/ as ...
0
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0answers
669 views

How do I unlock bootloader on motorola droid razr XT907?

I am able to use the phone on US GSM network but would now like to unlock the bootloader and also root and maybe even flash. I am new to all of this and learning as I go. Thanks in advance!
0
votes
1answer
38 views

Can I mod my phone with bootloader locked?

I have a Motorola Defy ('jordan') that I have just recently rooted. I would like to add a mod to it though as it is running on Android froyo still but my bootloader is locked so i'm not very sure how ...
0
votes
0answers
28 views

Android: Green bar in bootloader

I tried to run the command fastboot flash recovery recoverym.img using cmd but I've got some problem. First, a green bar (progress about 90%) was shown on the top right corner of my bootloader. ...
1
vote
1answer
125 views

Does CyanogenMod Installer create a recovery image?

I'm looking at installing CyanogenMod onto my Galaxy S3 (i9300) and the CyanogenMod Installer looks to be the easiest way to do this. However I would like to get an image of my phone before I attempt ...
0
votes
2answers
588 views

Does encryption, factory reset, encryption make a safer used phone?

I recently purchased a used Moto X. I know the person I bought it from so I'm not terribly worried but here is my idea to shore up the security on a used device. Don't put in your SIM card or log ...
1
vote
1answer
499 views

Mediatek-res.apk causing bootloop

Right, so I've been an absolute idiot and I uninstalled mediatek-res.apk. I was probably very tired and I was stupid enough to forget to make a backup in recovery. The phone is a Chinese clone (Jiake ...
0
votes
0answers
19 views

Can't get into the bootloader in H9500 (zp900 unbranded)

Anyone knows how to get into the bootloader in H9500 (zp900 unbranded)? I tried adb reboot-bootloader but it just restarts the phone. No bootloader :(
0
votes
1answer
272 views

Does having CWM mean bootloader is unlocked?

I flashed CWM using Rom Manager. Does this mean that my Galaxy S4 bootloader is unlocked? I'm using Samsung Galaxy S4 (SGH-I337M) (Canadian Telus)
0
votes
0answers
98 views

Is it possible to unlock bootloader in Ainol NOVO7 Fire?

My device is Ainol NOVO7 Fire 20130506.tm.v5. I can't bring the device to bootloader menu (and fastboot mode as well): $ adb reboot bootloader leads to reboot to normal mode. 'Vol-' + 'Power' ...
0
votes
0answers
119 views

Xperia Miro fastboot wont work

I've been following the official sony's unlockbootloader tutorial and I'm stuck on a problem that I cant seem to fix. To use my unlock code, I have to Turn off the device Connect the usb cable ...
0
votes
0answers
325 views

I can't unlock bootloader on Nexus 7 (2013)

Process reaches the stage of Erasing userdata add stops. I was waiting for 1 hour but nothing changes.
1
vote
0answers
231 views

How to flash Android onto an empty Samsung GT-P3100 (OMAP4430)

I'm about to purchase a replacement motherboard for a Samsung Galaxy Tab 2 7.0 (GT-P3100) as the original one has developed a hardware fault. Unfortunately the sellers (eBay) won't say if Android (or ...
1
vote
0answers
731 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 ...