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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1answer
630 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 ...
-3
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1answer
177 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 ...
1
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1answer
540 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
votes
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 ...
0
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0answers
35 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
votes
1answer
136 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
votes
1answer
121 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
votes
1answer
267 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
votes
1answer
7k 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.
1
vote
1answer
232 views

FireFireFire Kindle Fire stuck in strange bootloop

I have a Kindle Fire (1st gen) using the FireFireFire bootloader to boot TWRP and AOKP. It has worked fine for a while before. Now, I cannot turn it on when it is not plugged in. When it is plugged ...
0
votes
0answers
278 views

HTC Desire X stuck on Bootloader

I have an Htc Desire X which i got from a friend of mine which was rooted,i wanted everything to be factory new and installed a ROM which i thought was a stock ROM and to complete the process i did a ...
0
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0answers
19 views

The Use of Custom ROM and Unlocking Bootlader [duplicate]

Recently came across an article saying that one of the advantages of the Google Play edition phones is Unlocked Bootloader. Did some research around what unlocking bootloader will generally do, but ...
0
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0answers
94 views

nexus s in bootloader mode does not appear in lsusb

I have a Nexus S, and I'm trying to root it. The bootloader is already unlocked. (I got it from a friend, he unlocked it so I don't know any details on how that was done.) When I start it and plug it ...
0
votes
0answers
281 views

Galaxy S3 Bootloader Problem

I made an effort to unlock the boot-loader on a Verizon Samsung Galaxy S3 (SCH-i535) and it didn't work. I followed these directions to a T. When I got into CWMR, I installed CyanogenMod 10.2 and ...
1
vote
2answers
3k views

Booting to recovery

I have Xperia mini pro (4.1.B.0.587 Stock ram), and my bootloader is unlocked. But I could not boot to recovery mode by pulsing volume down button. I press it after phnoe shakes and before displaying ...
0
votes
0answers
191 views

Reflash 1st Gen Kindle Fire Bootloader?

I rooted my Kindle Fire and flashed TWRP, FireFireFire, and AOKP, and it's been working fine for a while. Recently, however, there have been strange problems with the bootloader. It has gotten to the ...
0
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0answers
292 views

What does “Recovery” means in Bootloader screen?

I tried to perform Factory Reset, and I got one option there "Recovery". So what exactly recovery means? click for larger image
0
votes
2answers
8k views

How to put a ROM on read-only /sdcard, while adb shell not working (HTC One X)

I've been searching my _ off for two days now to find a solution for my problem, but I can't find one working for me. What I do have right now: NO working ROM (I believe because of a failed atempt ...
0
votes
1answer
255 views

where does default setting for Command Line Switches is set in kernel source code in android

My android device is quad-core . But during booting only 2 cores are up . CPU_HOTPLUG is enabled . In dumpstate i found : maxcpus=2 in command Line options. I wanted to make this maxcpus=4 . I have ...
0
votes
1answer
331 views

How to install ROM when bootloader is not unlocked?

Accidentally, on stock recovery, I selected wipe data/factory reset which could have uninstalled the ROM on it. So, now my mobile is showing company logo only. My mobile HTC Inspire A9192's ...
0
votes
0answers
723 views

Is there anyway to backup current ROM without unlocking bootloader/ installing clockworkmod recovery?

I'm trying to use ROM Manager app to backup the current ROM of my Xperia Z but it seems that cannot be done without unlocking the bootloader/ installing ClockWorkMod Recovery. Is there any ...
0
votes
0answers
233 views

Uboot image as android recovery image

Is it possible to write uboot image to the image where recovery image is located? My recovery image was hidden so I had a hard time locating what's it's partition : recovery partition does not seems ...
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votes
1answer
535 views

What is the method to debug Android kernel from booting in tablet?

I have to test a custom Android build on a tablet and I need to know the method to debug the Android kernel from booting in the tablet? The tablet has only a screen, 2 USB ports and an HDMI port.
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0answers
1k views

Auto boot when charger connected (for HTC Magic)

I want to let Android OS to boot automatically when the charger connected (for HTC Magic) without pressing power button I found this guide: Complete boot when charging If your phone only gets one ...
0
votes
0answers
240 views

What can I load from Android system recovery <3e>?

TL;DR: Can you load an OS image or new bootloader or anything useful from the recovery menu's "apply update from external storage" option? My 10" Toshiba Thrive AT100 stopped working a while ago. ...
3
votes
2answers
10k views

How to know whether my Xperia Ray's bootloader is locked or unlocked one

Title says all, but again a bit background I would like to know whether the bootloader on my xperia ray is locked or unlocked one. I bought it from ebay & with seller warranty (or you can say no ...
1
vote
1answer
965 views

What does unlocking the bootloader do?

My understanding is that a boot loader is like a BIOS in a PC, which will help a device to load the OS correctly. When I unlock the bootloader in an Android device, does this modify the complete ...
0
votes
0answers
43 views

Problems Unlocking Bootloader Of Atrix 4G

I wanted to try out CM7 and was following the instructions on this page: http://wiki.cyanogenmod.org/w/Install_CM_for_olympus . The bootloader unlocking process failed according to RSDLite and now I ...
2
votes
0answers
1k views

Installing Android using only fastboot on HTC Vision

I lost my system somehow. My phone turned off and reboots during starting up. I'm only able to go to hboot (fastboot/recovery etc.) on my phone, and I'm unable to run Android system. I have tried ...
4
votes
1answer
3k views

Can I lock the Nexus 4/7 bootloader after flashing a non-stock ROM?

I know that doing a fastboot oem unlock will both unlock the bootloader and wipe the data on the device. Unfortunately, while this allows me to install a non-stock ROM like Cyanogenmod, my ...
5
votes
1answer
5k views

what is a bootloader unlocked phone?

What is a bootloader unlocked phone? How we can make use of it while creating or flashing ROMs? What are advantages of unlocked bootloaders over locked bootloaders? Why does not any OEM generally ...
0
votes
1answer
985 views

How to flash phone, if it stucks in bootloop

My phone gets stucked in a bootloop if I start it. The last thing I did was changing the fonts. I replaced droidsans by Segoe ui. Well I already deleted the cm10.zip on the phone and now can't flash ...
2
votes
2answers
578 views

Will bootloader unlocking provide access to all the apps in the Play Store?

My flyer doesn't allow few apps to be installed from the Play Store as it shows "This app is not compatible with your device" and this incompatibility is not due to OS. If I get the apk of this app ...
0
votes
1answer
504 views

Can I get back to root-able HBoot version by doing a factory reset

I have a HTC Wildfire (Buzz) that originally came with Eclair. I now have Froyo on it and the Unrevoked tool doesn't work as the HBoot version is not supported (too new for Unrevoked). At this point, ...
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votes
1answer
94 views

Is it possible to s-off without wiping out phone memory? [closed]

Is it? I don't want to wipe out my apps.
4
votes
1answer
5k views

What is S-OFF? Why would I want to do it?

I always root my android devices, but there's something called obtaining S-OFF for certain devices, and I have no idea what that means. What exactly does the term S-OFF relate to? Why would I want ...
2
votes
1answer
685 views

Does a nandroid backup contain the hboot?

If I restore a nandroid backup will it restore the hboot and the corresponding partition tables? I'm on bravo-stock hboot now and I want to try the CM7 hboot. Will I be able to switch back to stock ...
2
votes
1answer
12k views

Upgrading hboot fails: signature verify fail

My Goal http://forum.xda-developers.com/showthread.php?t=1762790 Putting jelly bean on nexus one My Problem Upgrading hboot I'm just following everything step by step (link) $ fastboot flash ...
19
votes
2answers
7k views

Why does unlocking the bootloader wipe phone?

I understand that unlocking the bootloader will wipe my Android phone, but have been looking around for why. Seems to be by design, but what is the reasoning for that design? Is it some security ...
1
vote
1answer
437 views

Is the setting OFF/ON of the security flag different from enabling/disabling of fastboot?

I am following the book XDA Developers Android Hackers Toolkit 2012. In the beginning chapters , it says that : The second-stage bootloader checks to see if the security flag is on (S-ON) or off ...
4
votes
1answer
7k views

fastboot not working on my Nexus 4

I'm trying to root my N4, and fastboot doesn't seem to work. Running it on linux, and the fastboot binary seems to run. 'Fastboot devices' produces info on my device, but 'fastboot oem unlock' just ...
0
votes
1answer
177 views

Atrix 4G update via OTA with unlocked bootloader?

I am running 4.5.91 currently on a rooted and unlocked Atrix. Will I brick my phone by updating to 4.5.141 from OTA source? Can I re-lock the boot-loader if that is the issue?
2
votes
1answer
978 views

How can I go back to ICS after JB OTA updates?

My phone is HTC One S VelliC2 and received the JB OTA updates. However, I could not get used to it. So how can I return to ICS? Can I use the HTC Android 4.03 RUU file? Now the Hboot version has ...
3
votes
2answers
5k views

Device always boots in recovery mode, but apparently there is no recovery partition

We have a BSNL Penta IS709c (cheapest tablet currently available / Oct 2012) running Android 4.0. Feeling adventurous, I issued reboot recovery through adb and the device tried to reboot in recovery ...
1
vote
1answer
654 views

How to Install our android image in laptop ? How to make android boot-able image for laptop?

I have Android Source Code image and i want to install it on Laptop . I want to know how we made bootable image for laptop with android image. What I have to do so that laptop detect the android ...
6
votes
3answers
1k views

Strange (unfamilar screen) on my Galaxy Tab?

I have a Galaxy Tab 10.1. It was powered off and charging when my nephew picked it up and turned in on. When he handed it to me on the screen was a graphic of an open box, the android logo with the ...
1
vote
1answer
355 views

Flashed my phone without rooting and now it doesn't work

I have an international Samsung Galaxy SIII i.e. GT-I9300. Few days after the official upgrade to v4.1, it started freezing. So I removed the battery and inserted again and it did not boot and was ...
5
votes
1answer
10k views

Problem with unlocking the HTC Wildfire bootloader with HTC unlocker

I tried to unlock HTC bootloader by the official tool but I get to the stage when I issue the command: fastboot oem get_identifier_token Unfortunatly I get error ... (bootloader) [ERR] Command ...
1
vote
1answer
4k 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 ...
4
votes
2answers
6k views

Is there currently an easy way to root Sony Xperia S with stock ICS 4.0.4 ROM?

I'm looking for an easy way, which doesn't need Unlocking bootloader or flashing Roms, just like root solution for SE 2011 devices (one click). It's because I currently use my Xperia S for development ...