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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How to unlock bootloader on samsung devices?

Before you try to install any custom ROM on your device, you need to unlock the phone’s bootloader, which is a code executed before any OS (operating system) launch. The notion of a bootloader is ...
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84 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' ...
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1answer
5k views

Can't get in recovery or normal boot HTC One M7

Please help me. I've done something really stupid. I flashed from ClockWorkMod to Android Revolution HD on my HTC One m7. I've got ClockWorkMod Recovery installed and when flashing was done i got ...
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82 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 ...
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272 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.
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201 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 ...
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525 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 ...
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94 views

Understanding the android boot

I really want to run pure linux on my android based device (please, no chroot, etc. suggestions) and I want to fully understand how my device boots, from the bootloader as far as the init system. I'm ...
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6 views

Serious doubt regarding rooting my Samsung Galaxy Note II [duplicate]

I went through some tutorials for rooting my Note II(GT-N7100-International version), and i could find people saying that bootloader unlocking is needed. I am not sure what bootloader unlocking is. ...
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28 views

Question about recovery and bootloader

I have following question about recovery and bootloader 1)How locked bootloader block custom rom to be updated via recovery? 2)As package verification code is in recovery then why we need to unlock ...
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1answer
10k views

What does HBOOT mean?

My best guess as of now is "partition and mount point layout". But it feels like there's more to it, since the bootloader can identify the HBOOT by name. I've been flashing custom ROMs for quite a ...
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1answer
157 views

Help to understand working of powerbutton and volume rockers

I want to understand the workings of power button and volume rockers in Android devices, which are associated with the kernel driver of these keys. What happens in the kernel driver and boot loader ...
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688 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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612 views

adb/fastboot can't find device in bootloader, but they can do it when booted

I have worked on building Android from source code for few weeks. It used to be fine to me with my Galaxy Nexus, I can connect to my device via adb and fastboot and flash either the factory ROM or ROM ...
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46 views

Does unlocking the bootloader pose any carrier/network related risk?

I'm on Motorola's website, reading over risks and warnings related to unlocking the bootloader, two of which peaked my concern: You may lose some key functions like telephone, radio, and audio ...
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18 views

Android hangs on boot image after changing boot loader [duplicate]

I changed the bootimage of an Android device and it bricked. It's freezing at the boot image. I try to install a ROM using fastboot but I have a permission error. I try to connect with adb but I ...
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1answer
498 views

What is the difference between aboot and boot?

I'm looking through my device and I noticed within /dev/block/platform/msm_sdcc.1/by-name that there is boot and aboot partitions. What is the difference between them? Mainly what is aboot?
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2answers
670 views

Update heavly customized but stock rom Nexus 5 keeping data?

I have a Google Nexus 5 with Stock Rom 4.4.2 and: Unlocked boot-loader Custom recovery (TWRP) Custom kernel (franco) Root X-posed framework What is the best method to upgrade to the upcoming ...
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1answer
1k views

GT-I9001 (galaxy S plus) not recognized in Windows 8.1

I installed the ClockworkMod Recovery v6.0.1.4 and tried to install a cyanogen mod on my Galaxy S plus (GT-I9001), but now my phone is stuck in a reboot-loop where the OS doesn't start and I just come ...
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337 views

EFI-mode boot loader for Android

I have thinkpad tablet 2 which boots only UEFI 32bit OS I wonder if there is any EFI-mode boot loader for Android which will load Android X86 or any other android distribution on my tablet Tried: 1. ...
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1answer
12k views

Galaxy s2 will not boot, wrong bootloader

My Samsung Galaxy S2 GT-I1900 won't boot. I tried to update to ICS with Kies which crashed, wherefore I unplugged the USB to start over. Now my phone had no OS, and wouldn't respond to Kies anymore. ...
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50 views

Bootloader has crashed, no any boot or even black screen

I installed the bootloader unlocker of g300 on my huawei p1. But now my phone doesn't even show any boot signs. I need help please..?
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1answer
132 views

HTC rhyme shows LOCKED when I turn it on

When I turn my HTC Rhyme phone, it just shows A page that's written ***LOCKED*** at the top and has three android icons at the bottom and have some menu items as below: Bootloader Reboot ...
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1k views

Factory reset generic android device

I have a cheap generic Android tablet (a Groupon special) that won't boot. My theory is that the storage is full because this happened to two different tablets after installing apps. update: I learned ...
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1answer
1k views

What is the difference between rooting and unlocking the Boot Loader in reference to Android? [duplicate]

I have heard these two terms the most, whenever people talk about Android OS. One of them is Rooting or root access, and the other one is unlocking the Boot Loader. Are these two terms exactly the ...
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1answer
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How to and from where install ClockworkMod Recovery (CWM) on GT-P1000?

Currently I am trying to upgrade my Android OS from 2.3.3 to Cyanogenmod 9 not with "Odin" but via the bootloader and SD-card. Now I had a problem with "Signature verification failed" described here ...
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1answer
166 views

Trouble understanding this Cyanogenmod PSA

I've been using Cyanogenmod for over a year now, with my own modifications to the dalvik VM. I have teamwin recovery installed on my Samsung Galaxy S3, which I use to install new builds of ...
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1k views

How do I fix my NATPC M010SE (Allwinner A13) touchscreen/WiFi/camera?

My tablet wasn't booting at all but my dad managed to install this firmware update, now the touchscreen doesn't work, or the WiFi, or the (front) camera. Any help? I've tried installing some TS ...
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1answer
465 views

Enable bootloader screen for Lenovo Vibe Z

I pressed and held volume up key for sometime and my Lenovo Vibe Z is seems to be bricked (not charging or switching on). I would like to get into to the boot-loader screen to factory reset the ...
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144 views

HTC Desire HD stuck in boot loader - how to get contacts

I woke up this morning and I found my HTC desire HD (running stock android 2.x with HTC Sense) with the boot loader screen. I tried to choose Recovery and Reboot but its still stuck in the same ...
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0answers
130 views

Samsung Galaxy S Captivate stuck at the boot screen

I have a Galaxy S Captivate and it has been problematic ever since. I flashed various stock roms (with and without bootloaders) in download mode and the phone always gets stuck at the boot screen ...
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1k views

How can I unlock the boot loader on a HTC Magic?

After a lot of unsuccessful days trying to root my Android phone, I'll now post my problem here with every approach I already did. Maybe someone can help me. I am trying to unlock the boot loader on a ...
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1answer
137 views

What is meant by locked bootloader?

Everyone complains about locked bootloaders on phones. From reading the bootloader seems to be code stored on the partition which /boot is mounted. Once the phone is rooted why couldn't one just ...
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1answer
2k views

Possible to do Nandroid Backup BEFORE unlocking bootloader?

I have a stock Atrix 4G with Froyo (2.2.2) (Version.4.1.83.MB860.ATT.en.US). It's past warranty, so I'm not worried about voiding the warranty. As one would expect, the stock recovery doesn't offer ...
0
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1answer
685 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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2answers
9k views

Disable splashscreen - BOOTLOGO disabled

First off all I must start by saying that I am not an Android Expert. I Have some android TV box ( not a phone ) which is of some unknown third party chinese vendor . it is already rooted . I need ...
2
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1answer
388 views

Xperia V can I relock my bootloader for Bravia Engine to work again?

I have unlocked the bootloader to try some roms, but too late I understand that this will make the Bravia Engine to stop working... If I relock my bootloader will that make the Bravia Engine to work ...
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1answer
647 views

Droid 2/R2-D2 Can't Load Beyond Bootloader

I picked up a DROID R2-D2 from a coworker who has given up on the device. Knowing I like to tinker with these things, she offered me the phone in whatever condition I can muster from it. A few weeks ...
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1answer
70 views

Unlocking Bootloader

Recently I've unlocked my sony xperia p boot loader. I am sure that it is unlocked. But is there any option to find out that is it unlocked?
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1answer
188 views

how to enter bootloader with moboot in HP Touchpad

I have a HP Touchpad that successfully installed webos and CM9 with moboot to select which to boot. Today, I want to update CM9 to CM10.1 or CM11, and here come the problems: it couldn't install the ...
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0answers
241 views

How do I authorize my Galaxy Nexus for adb usage

I have a Galaxy Nexus and the adb thingy isn't authorized. I also can't access into bootloader mode because my volume button is spoilt. =/ Is there anyway I can get into bootloader mode?
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1answer
881 views

Installing stock ROM - at 65% get error assert failed: write_raw_image(“/tmp/oemsbl2.img”, “oemsbl2”) Status(7), Installation Aborted

So, that is the problem. I tried to search at google but no luck, only responses were boot.img, and those are not the same. updater-script: assert(package_extract_file("boot.img", "/tmp/boot.img"), ...
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1answer
460 views

How does the HTC-Dev bootloader unlock process work?

I've been trying to root a phone. For my purposes, at least for the moment, I think the HTC-Dev way is enough - that it will give me a way to root and that I don't need S-OFF. I have looked at the ...
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1answer
1k views

Asus ME302KL tablet halts on loading

I have a problem with my Asus MeMO Pad ME302KL It halts on loading screen - Asus logo and loading spinner and loads forever, until the battery goes off completely. Holding the power button for 10 ...
2
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1answer
3k views

Android tablet won't reboot after rebooting using volume and power buttons

I am using a 7" Smartfren tablet called S7. I was following this tutorial. When I got the last part about the bootloader, I turned my device off. I tried to reboot using the volume buttons and power ...
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36 views

How do you undo a Bootloaded Android Device? [duplicate]

Possible Duplicate: Android tablet won’t reboot after rebooting using volume and power buttons I 'think' I have bootloaded my device after pressing the Power+Volume buttons simultaneously ...
0
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1answer
167 views

Internal SD-card hardware erros. Is there a way to move partitions to external sdcard?

I have a device with hardware errors in the internal sd card and want to move /data entirely to the external sd card. I was thinking that it should be possible to create a partition in external ...
2
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1answer
232 views

Does upgrading bootloader wipe your data?

I'm about to flash an update to Android 4.4.2 on my Nexus 4, downloaded from Google Developers, and one of the files that it's going to flash is the new bootloader version. I wanted to know if ...
0
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1answer
557 views

Acer DA241HL - system reset from bootloader

The Acer DA241HL is a 24" Smart Display which has Android installed but also had HDMI input so you can use it as a second screen for a laptop or similar too. Anyway, I've been able to reboot into the ...
3
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1answer
10k views

Is it possible to boot an Android phone from a USB drive?

Is there any way to boot an Android phone* from a bus-powered USB drive**? If so, what are the steps to achieve this? * E.g. one with USB OTG functionality. ** E.g. a flash drive.