Questions tagged [bootloader]

for questions on the bootloader, which is kind of "BIOS mode" on Android devices

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1answer
218 views

Input Keyevent in fastboot mode?

I'm trying to unlock the bootloader of my old Alcatel OneTouch Idol X+. I got to the point where my phone would ask me to press volume-up to confirm that. Due to a bug of which i read several times ...
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1answer
63 views

Preventing booting from unwanted/upgraded partition in Android

As I understand in Nougat and greater the system has two full partitions, one currently used and the second one that is used for upgrading. So during an upgrade the new bits are laid down on the ...
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1answer
2k views

How to delete Update.APP file from p8 lite

There is low disk space on my mobile and I want to delete this Update.APP file as you can se this file is taking 2.55 GB!!. I tried to delete it but it shows error "Error while deleting the file "...
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1answer
299 views

fastboot does not recognize my LAVA Iris Atom

I've been doing quite the research on this error, but couldn't find a solution that could help me with my device. Adb commands works fine, but not fastboot commands. I have tried several sites for ...
2
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0answers
29 views

is it possable to install a linux distro ie:- nethunter on a android device

I have been trying to work out how to use my old Android tablet as a stand alone Linux tool for pen-testing and network monitoring and logging. I have it boot straight into the OS without having to ...
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0answers
1k views

How to get Huawei Product ID without stock ROM?

I have Lineage as opposed to the stock ROM, so putting: *#*#1357946#*#* does not work for me. Recommended on alternate posts were downloading a program called "Huawei Product ID Generator", but ...
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1answer
1k views

Canot enter TWRP recovery because of “fastboot erase userdata”

I want to flash a new ROM for my Android phone. I clean data by fastboot erase userdata but after that, I can not enter TWRP recovery because can not mount /data I tried fastboot format userdata ...
0
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1answer
177 views

Recovery mode device drivers not working in HTC Desire 616

I have an HTC desire 616, bootloader locked, S-ON. I am able to enter on recovery-mode but the device is not listed in ADB, though I have all latest drivers from Google, Windows and HTC. I am able to ...
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1answer
894 views

Unlocking boot loader **doesn't** wipe data. How is it a security threat?

MiA1 is probably the only one of it's kind that doesn't wipe data when bootloader is unlocked (tested by me and widely known) It is said to be a security threat. I am not clear how Say my device is ...
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1answer
329 views

Unbootable OnePlus 5T

So, I rooted my device and everything was fine. It was like that until I used Freedom. It messed up my Play Store. There was nothing that could repair it. I tried doing a factory reset but my twrp did ...
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0answers
4k views

Bootloader unlock failure “Command not allowed” of a Huawei Honor 6x

I have followed all instructions to unlock my Huawei bootloader, until the last instruction in the command prompt. Some maybe useful information: My computer runs windows 10 My phone is a Huawei ...
0
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1answer
175 views

ADB Backup: Will it erase root?

This may sound like a stupid question, but I have a Honor 5x I'd like to root, and I want to use adb backup to backup all my phone's data so I can restore it after unlocking my bootloader (which ...
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0answers
171 views

Unlock bootloader on Dell Venue 10 5050

I have a bricked Dell tablet that doesn't boot and also a has locked bootloader (Secure Boot: Enable). I've made a full partition dd backup, but now I cannot flash it via fastboot supposedly because ...
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2answers
2k views

Trouble Unlocking Bootloader on Android Device (RCA Voyager Tablet)

Okay, so I've figured out how to set up ADB on Mac OS X and I've followed all the instructions on how to get to Fastboot from ADB. The last command I use is: fastboot oem unlock This command in ...
2
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0answers
1k views

(SOLVED) How (methods) to unlock Bootloader on own Xiaomi Mi5 MIUI8 (Data Recovery context)

UPDATE: 2018/06/27, bootloader implies wipe and it is a dead end for Data Recovery, mount as USB Mass Storage implies root to change settings, and for Mi5 or MIUI 8 this implies flashing ROM (dead end ...
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0answers
2k views

[Nokia 3]adb reboot bootloader failed

I have Nokia 3 Android 7.1.1 connected to PC Windows 8. Problem is: C:\>adb reboot bootloader reboot failed: -1 Reason to do it is to flash/root in future. Other commands ok: C:\>adb devices ...
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1answer
610 views

How does having an unlocked bootloader make it easier to bruteforce the passcode on an encrypted system?

I've been told that if my bootloader is unlocked then it is easy for someone to install a new boot image and just brute force my passcode. What is it about having the bootloader locked that makes it ...
3
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1answer
2k views

Is it possible to install a custom Android ROM if the bootloader is locked?

Suppose the bootloader of an Android device is locked. Is there any way to install a custom ROM without unlocking the bootloader? If yes, then how?
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1answer
1k views

Xperia M4 Aqua reboot-bootloader only shuts it down

I'm trying to reboot my Xperia M4 Aqua into bootloader mode but all it does it turn it off and I get the battery charging image as if the phone is shut down and in charge. I tried using the commands ...
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0answers
20 views

Why does unlocking bootloader require erasing userdata? [duplicate]

I unlocked the bootloader in my OnePlus 5 right after it was delivered, so there was nothing to erase. Then I flashed TWRP and SuperSU. It comes with DM-Verity (and /data force encrypted). I tried re-...
0
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1answer
2k views

adb shell returns with error: closed

I somehow bricked my oneplus one phone badly. It only loads directly to the recovery. Pressing vol up + power button or rebooting it with adb reboot bootloader doesn't get me to the bootloader. I ...
0
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1answer
379 views

ZUK Z1 bricked?

my device had gone into a boot loop condition where It can't be detected by adb or computer even in fastboot or recovery mode hence, twrp sideload not working can't push files into and zuk is having ...
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2answers
15k views

Xiaomi Mi Unlock “Not connected to the phone”

I am going insane here and I need help now. I am trying to unlock my Xiaomi Mi Note 4's bootloader since almost 2 weeks, but I am stuck in this problem where the Mi Unlock tool can't recognize that ...
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1answer
714 views

How can I check if a lost Android phone has been flashed

My wife lost her OnePlus 3T and after 4 days it's returned by a passerby who found it. Not to sound paranoid, but is it possible the phone was flashed with custom ROM but retains all the data? Can ...
0
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1answer
284 views

How to fix infinite bootloop problem in rooted karbonn Sparkle V

I have Karbonn Sparkle V and it has marshmallow before I root it. when I root my phone using Android One toolkit, its restart my phone after showing message rooting completed. But when it restarts ...
0
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1answer
309 views

Casper Via V6X Bricked. Can't Boot Into Recovery Mode

I've an Android device, Casper Via V6X. The device is not booting. I get the vibration and see the logo of the device but then nothing happens. When the device is closed and plugged in, it shows that ...
0
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1answer
1k views

My Lenovo Tab 3 7 Essential is stuck in bootloader (LENOVO LOGO

I enabled OEM UNLOCKING and rebooted the device, but it fails to proceed after the boot animation. Please help as soon as possible.
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0answers
42 views

Help unbricking my nexus 5

let me tell a story first, i want to flash new boot.img for my nexus 5, but i'm also curious what happen if i do re-partition. I delete boot partition ./parted /dev/block/mmcblk0 rm 19 (my boot is 19) ...
2
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0answers
305 views

Phone's power and volume buttons will not work in bootloader

I have recently decided to unlock the bootloader of my BLU Studio X8 HD. I have first installed the ADB drivers and afterwards I have used the command adb reboot bootloader to boot the device into the ...
7
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1answer
6k views

How to run adb and fastboot commands from Termux?

Is it possible to run adb and fastboot commands using Termux terminal emulator? I am wanting to run commands from one Huawei T3 7 to another using USB/OTG cable. Need to unlock bootloader but have no ...
1
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3answers
81 views

Why are bootloaders in rewritable storage?

I successfully flashed my device a few times, but I am still paranoid about hard bricks. I am sure I can use my Arduino to fix them, but this made me wonder why bootloaders are stored in rewritable ...
0
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1answer
429 views

Would rooting my phone prevent me from using device protection features

I wanted to unlock my bootl oader so that I can root the device for performance and battery improvement.when I try to turn on OEM unlocking, I am told that the step would deactivate device protection ...
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1answer
105 views

Any other way to recover system?

Past days my android phone got in bootloop. Since I didn't have access to PC, I tried some things from recovery. Tried to format dalvik-cache, but it failed because it was r/o. I tried installing SU, ...
1
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1answer
3k views

How to check if bootloader is open?

1) How can I check if the bootloader of a Nexus 5x is open? (GSM Code? App? ADB?) 2) Is it still correct that only the manufacturer can close the bootloader once it has been opened? Or is it already ...
0
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0answers
497 views

Flashing custom recovery using DD with locked bootloader?

So, I understand that you can flash a custom recovery using DD. I have done this on my Nexus 6p, with an unlocked bootloader. My carrier is Verizon, which loves to lock down bootloaders. I have ...
0
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2answers
4k views

How can I update the fastboot driver for my Sony Xperia device

I Need to unlock the bootloader of my Sony xperia m2 dual. It's currently in stock. As soon as I connected my device in fastboot mode by pressing volume up button and connecting the USB cable my ...
0
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2answers
1k views

Unlocking Bootloader to wipe internal storage

I know that unlocking bootloader does wipe the /data partition. However, can it also wipe the /storage partition and others, too?
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1answer
558 views

OEM unlock for Android phones [duplicate]

What is the purpose of OEM unlock? What would happen to my device if I enable that option? Will it mean that my bootloader is unlocked?
0
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1answer
346 views

is it possible to flash supersu on my phone with twrp without unlocking bootloader

I was wondering if you could get supersu somehow on my device, also what is the difference between not flashing supersu and downloading it, becuase I think I saw a article about being able to flash ...
0
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1answer
2k views

Explain “Don't Downgrade!” warnings when flashing stock firmware

I have a few devices I want to put back from custom roms to stock. On almost every stock rom source, however, there are dire warnings for some devices not to downgrade to stock versions from before ...
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0answers
1k views

How to Properly Reverse Boot Unlocking

After following instructions to unlock a bootloader and then ones to lock it back, using Fastboot for both, my Android 7.0 phone boots with a warning saying that Your device has failed validation ...
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1answer
1k views

What does unlocking the bootloader have to do with rooting?

Every procedure I found to root my phone required to unlock the bootloader as a prerequisite. Well, I have an idea of what a bootloader is and it seems that there is something that prevents it from ...
0
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1answer
141 views

is it required to do unlocking of bootloader before installing and upgraded rom for sm-g550t galaxy on5 and then reroot

i want to know,in order to upgrade from my rooted Samsung ON 5 SM G550T, to Nougate 7.00, will i have to re-root the phone process again. Currently my phone is rooted but i think my boot loader is ...
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1answer
356 views

While flashing , is it necessary to unlock the bootloader?

If need to be unlocked tha bootloader. How can i unlock the bootloader ? For lava pixel v1 android 6.0
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1answer
7k views

PLEASE HELP Moto G4 fastboot broken

I wanted to fresh wipe my phone with a stock ROM, and well I really messed up. My bootloader was unlocked, and like the stupid me I am, I believe I accidentally locked it again. Now, when trying to ...
0
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1answer
431 views

Hiding Boot Logo on Samsung Galaxy Tab3 Lite SM-T116BU

I'm trying to hide this Samsung boot logo splash from my tablet The closest that I get was trying the method described on this post: https://forum.xda-developers.com/showthread.php?t=2529133 but ...
2
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1answer
3k views

Cannot unlock bootloader

I am trying to install Ubuntu Touch on Vodafone Smart Mini 7(Android 6.0), I followed the instruction from Ubuntu Official site and when I hit sudo fastboot oem unlock ,press UP volume button, I get ...
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3answers
3k views

HARD BRICKED AFTER INSTALLING 4.4.4 UPDATE IN MOTO E 1st gen

When I updated my mobile, it power offed then it gone to bootloader mode then I pressed on normal power, but it didn't, so I press on recover, it gone to TWRP mode and I pressed on recover, there some ...
1
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3answers
187 views

Android wear 2.0 install bug?

I recently updated my Moto 360 2nd generation to Android Wear 2.0. Due to the fact that I didn't get a notification for it, I forced the installation by spamming the green tick saying that there isn't ...
1
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1answer
904 views

Unlocking Bootloader Moto G Unable to bootup

I have been trying to unlock the bootloader on my Moto G 3rd Gen, so I can install TWRP Custom recovery and flash a new system image, as my phone will not boot up at all (including recovery mode). I ...