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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1
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1answer
905 views

Strange chinese menu on Lenovo IdeaTab S6000 - how proceed?

Context I just skyped with my mother (far away) because her android-tablet (running 4.2) showed a strange menu with chinese/japanese/asian characters, almost like a bootloader. My short troubleshoot ...
0
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0answers
20 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
votes
1answer
17 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 ...
1
vote
1answer
31 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
votes
0answers
15 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 ...
1
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1answer
1k views

Can't access Recovery Menu Milestone a853

I'm trying to flash a Cyanogenmod 7.1.5 on my Motorola Milstone A853. I can access the Bootloader (version 90.74) and started RSDLite 5.7 and used a base sbf file, which flashes normally. When I ...
0
votes
0answers
16 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 ...
1
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0answers
154 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 ...
0
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0answers
98 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
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0answers
77 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 ...
2
votes
3answers
3k views

how to add a custom lock for the recovery and/or bootloader?

Unlocking the bootloader and/or the recovery is very popular discussion across many devices. But doing so exposes a very obvious and inevitable issue with security! An unlocked recovery means that no ...
0
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0answers
63 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
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
0answers
47 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 ...
2
votes
1answer
660 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
1answer
2k views

How to upgrade HBOOT from 0.80.0007 to 1.01.0001

I own an HTC Wildfire with HBOOT version 0.80.0007 and S-On. How do I upgrade to HBOOT 1.01.0001? Can anyone give me a nudge in the right direction? I've been racking my brains for the last few days, ...
0
votes
2answers
68 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 ...
1
vote
3answers
940 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 ...
1
vote
1answer
6k views

What exactly are DRM keys?

I was thinking of unlocking my ST17i's bootloader but I saw on the Sony Mobile website that unlocking the bootloader will result to the deletion of DRM keys from my phone. What exactly are they? And ...
1
vote
2answers
1k views

Can't Factory Reset HTC Desire C

I tried unlocking the bootloader (which I apparently succeeded at.) I then tried rooting it, which I failed at. I just want to reset the phone back to factory settings but when I try to do a factory ...
0
votes
0answers
3k views

Fastboot: Lock state - Locked on nexus 7

I am having trouble unlocking the bootloader on my Nexus 7. When I boot into fastboot I see the message LOCK STATE - LOCKED. I want to unlock the bootloader so I can re-install the stock operating ...
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 ...
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 ...
0
votes
1answer
354 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 ...
0
votes
2answers
119 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
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0answers
682 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 ...
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
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
151 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 ...
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
107 views

Samsung Galaxy 2 stuck at start up. Can I recovery the phone or at least the data?

My Samsung Galaxy 2 stuck every time when start up. It looks ok on the beginning, it shows "Samsung Galaxy S II ..." then change display to Vodafone logo then the shows word "samsung" and stuck here ...
1
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1answer
25k views

How to check if your bootloader is unlocked

I'm about to flash a custom recovery, but I'm not sure if my bootloader is unlocked or not (phone is rooted, but I did it a while ago, so I can't remember the process I went with), and I don't want to ...
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 ...
1
vote
0answers
155 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 ...
0
votes
1answer
148 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 ...
-2
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
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?
0
votes
0answers
839 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 ...
0
votes
1answer
761 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?
0
votes
0answers
287 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
votes
2answers
590 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 ...
2
votes
0answers
112 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
39 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
289 views

Unlock Bootloader

Has anyone as of yet figured out how to unlock the bootloader on A Cricket Kyocera Hydro C5171? I really would love to know how if it's been done yet. Thank you.
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
402 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
284 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 ...
7
votes
5answers
18k 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 ...
8
votes
2answers
52k views

What does it mean to “brick” your phone?

I'm considering unlocking the bootloader on my Verizon Galaxy S3 (SCH-I535). However, a guide I was reading made this statement: Once you have unlocked your phone’s bootloader using this app, you ...