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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2
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1answer
1k views

Strange chinese menu on Lenovo IdeaTab S6000

Context I just Skyped with my mother (far away) because her Android tablet (Lenovo IdeaTab S6000, running on Android 4.2) showed a strange menu with Chinese characters, almost like a bootloader. My ...
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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 ...
1
vote
3answers
3k 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
1answer
19 views

Does 'fastboot oem unlock' still work?

Does this command still work? fastboot oem unlock I ask this question because I am obviously trying to unlock my phone's bootloader and can't seem to auto-tab the option or see an entry for ...
0
votes
2answers
1k 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
16 views

Nexus S Change Bootloader. Is it OpenSource?

Loved my Nexus S but it's now been decommissioned and replaced. I've got a job for it to do, but to use it I think I would have to make a minor change to the Bootloader. Basically I want the Nexus S ...
2
votes
0answers
61 views

Can't unlock bootloader

I'm trying to unlock the bootloader of my tablet for hours now.. There's no solution out there that worked for me. I've already tried: fastboot oem unlock (the tablet responses with a question ...
1
vote
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 ...
3
votes
2answers
13k 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
0answers
17 views

Bootloader frozen on Nexus 10

My Nexus 10s bootloader is stuck, it keeps saying "Downloading... Do not turn off target!!" and fastboot commands have no affect on it. I also can't use the volume rocker to boot into recovery or ...
0
votes
1answer
17k views

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 ...
0
votes
0answers
21 views

Access Bootloader on VSD241

I'm trying to access the Bootloader on a Viewsonic VSD241, but the menu that comes up tells me to hit the "volume up" button to select Bootloader from the menu. There are no hard volume control ...
2
votes
1answer
2k 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
5k 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 ...
2
votes
1answer
4k views

How do I unlock the bootloader on my Sony Ericsson Xperia mini pro?

I own a "Sony Ericcson Xperia Mini Pro" (model number SK17i) running Android 2.3.3 (Kernel 2.6.32.8-perf, build number 4.0.A.2.335). It's branded by Orange Austria. I'm looking for a way to root it, ...
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
0answers
52 views

Device freezes after trying to reboot with bootloader

I have been trying to unlock my bootloader as per the instructions found here. I already have installed the drivers from Google USB driver folder that comes in Android SDK "extras" folder. However, ...
0
votes
0answers
8 views

Update made my tablet Force Boot when completed

I have a Samsung Galaxy Tab 4 7" tablet and when I had gotten an update it said in a toast notification Forcing Boot and when it succeeded in starting the tablet all apps that were on SD we're not ...
0
votes
0answers
14 views

Restoring personal data after bootloader unlock [duplicate]

I plan to unlock the bootloader on my OnePlus One device but from what I've seen in forums, personal data (media, app data etc) are lost in essentially what is a factory reset of sorts. Is there any ...
0
votes
0answers
176 views

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 ...
0
votes
1answer
525 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
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 ...
0
votes
0answers
120 views

How to unlock the bootloader on the Samsung Galaxy Tab 2 10.1 (GT- P5100)?

I have Samsung Galaxy Tab 2 10.1 GT-P5100. I would like to unlock the bootloader because I want to be able to upload a custom ROM. How to do this?
14
votes
5answers
27k 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 ...
0
votes
1answer
245 views

How to unroot and lock bootloader in HTC desire 820?

I have unlocked the bootloader with windroid, then I flashed TWRP recovery, then I flashed supersu zip file through TWRP to root my phone. Now I want to Unroot and relock the bootloader, but when I ...
0
votes
0answers
658 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 ...
23
votes
2answers
11k 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 ...
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vote
0answers
3k 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
1answer
109 views

Android Bootloop No recovery mode - only viberation

Phone: Huawei honor 3c I downloaded Emotion UI 3.0 for "probably" the wrong set form here offical site.But it was installed properly. Then there was an update of same emotion UI, which on ...
0
votes
1answer
213 views

Can I flash an unlocked G900T bootloader on a G900A?

I have a G900A and a G900T (short story: couldn't live any longer with the locked bootloader on G900A so I bought a G900T to use on AT&T). It's possible to flash a custom recovery/ROM onto the ...
0
votes
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 ...
0
votes
1answer
707 views

Asus memopad7 170C, unlocking bootloader fails

I'm trying too root my Asus memo pad 7 (170C), I've tried EVERY method, using KingoRoot, SuperOneClick, Frameroot, motochopper. None of them worked. So I decided to do the rooting stuff myself, first ...
1
vote
2answers
385 views

How to do a factory reset when recovery mode, usb debugging and factory reset don't work?

I have a device called "EXEQ SET": http://www.exeq.ru/produkcija/pristavki/os-android/set.html It runs Android 4.1.1. It is spitting out errors like this every other second, making the device almost ...
0
votes
1answer
148 views

Enable framebuffer console in Android kernel source

Is it possible to somehow enable the framebuffer console in android kernel sources from samsung, to see kernel messages instead of just the bootlogo?
0
votes
0answers
93 views

“Locking” a Samsung Bootloader

In order to prevent cold-boot attacks against an encrypted Android filesystem, it has been recommended to keep your bootloader locked at all times with the original factory recovery installed. The ...
0
votes
0answers
49 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
votes
0answers
197 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
328 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
627 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
65 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
vote
0answers
214 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
votes
0answers
143 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
0answers
926 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 ...
3
votes
3answers
4k 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
votes
0answers
184 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
votes
2answers
861 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
1answer
7k 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
0answers
4k 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
votes
0answers
18 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 ...
6
votes
2answers
21k 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 ...