Questions tagged [bootloader]

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

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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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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) ...
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284 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 ...
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Adb 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 ...
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3answers
74 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 ...
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1answer
393 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
102 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, ...
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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 ...
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461 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 ...
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1answer
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 ...
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2answers
992 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
510 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?
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1answer
337 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 ...
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1answer
1k 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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947 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 ...
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1answer
133 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
331 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
6k 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 ...
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1answer
385 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 ...
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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 ...
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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 ...
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1answer
744 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 ...
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1answer
302 views

Unlocking bootloader to change rom or firmware

My question is very easy: do I have to unlock the bootloader on every single phone to change its rom or its firmware, or someone need it and someone doesn't?
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1answer
1k views

Stuck at Erasing

I tried doing a factory reset on my Nexus 6 and the device got stuck in "Erasing". All I am able to do now is enter fastboot flash mode but none of the options work as the boot loader is locked. ...
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0answers
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Unlocking bootloader LG G6 Verizon

I'm not able to get fastboot to respond to any commands There is no OEM Unlock Option visible in the Developer Options Screen LG's tool does not support the LG G6 Are there other options I should be ...
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0answers
537 views

Android boot/radio/vendor images: What needs to be matching?

Today i got a replacement phone for my nexus 5x and i wanted to use a TWRP (disk image) backup from the old one. It's running now after quite a bit of experimenting to find matching images, including ...
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0answers
123 views

Bootloader questions

I'm trying to learn about the android's bootloader. However, I got into some questions : There are the SECURE BOOT and LOCK STATE. The LOCK STATE (if enabled) makes all partitions to read-only mode (...
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0answers
1k views

Unlock Moto E OEM Bootloader without the Passcode from Motorola

I need to unlock my Moto E phone(2nd Gen). To do this, I want to unlock the bootloader first. I got the 'get_unlock_data' and sent it to Motorola, But I did not get the passcode from them :( Could ...
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1answer
2k views

Yuphoria bricked and stuck in bootloop

My Android device YU Yuphoria is currently bricked and stuck in a bootloop. What I tried to do to cause this was that I first rooted the phone and installed TWRP. Then I installed Android Nougat on it,...
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0answers
530 views

Is my Galaxy 10.1 Tablet dead forever, or can I bring it back to life?

I have a Samsung Galaxy Tab 10.1, 16GB, wifi only version, GT-7510. Bought in the US. It was running a rooted version of Lollipop for a long time with no problems, and then in the last couple weeks, ...
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0answers
58 views

ZE551ML ASUS ZF2, Bootloader failure

I tried to do a procedure described in this video https://www.youtube.com/watch?v=BJPEc1NG_k8, about installing Lineage OS on a zenfone 2 ze551ml. In a specific part of the video, is required to ...
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0answers
390 views

Where should I place iptables update on Android at boot time?

I need to write specific values in the routing system using the iptables command for Android. The overall idea is that the user can navigate only using the provided DNS configuration. I've tried to ...
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0answers
492 views

Unlocking oem Elephone p9000

I'm trying to flash TWRP on my elephone P9000, but when I use SP flash tools it doesn't download anything to my device, so I decided to try adb. To get access to write a new recovery, I need to ...
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2answers
3k views

Can't install Lineage OS due to outdated bootloader on Moto G 2013 XT1034 falcon

I just bought a Moto G XT1034 and I'm trying to install Lineage OS 14.1 (lineage-14.1-20170307-nightly-falcon-signed.zip). I'm following the wiki instructions (http://wiki.lineageos.org/falcon_install....
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1answer
2k views

How to get out of boot loop on Mi 4i?

I got stuck in a boot loop. Can access Mi Recovery. Can't access fastboot for more than 10 seconds. I had accidentally wiped everything from my phone, without any backup. Also, I had USB Debugging off ...
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1answer
7k views

Format Preloader and reflash (mtk6582) Sp flashtools

The problem is that spflash tools says: "PTM changed for the ROM: It must be downloaded." The solutions are, download the preloader.bin (not work for me), and format all + download.... but I want ...
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0answers
283 views

Device administrator can not be deactivated

I installed a security app on my Samsung phone and it blocks the device from going to Odin mode (bootloader) so I can not update the software. I can not remove this app because it is a device ...
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1answer
2k views

Flashing Nougat failed (partition table error), fast bootloop

I tried flashing my Acer Iconia tablet with Android Nougat (NMF26U), following the Google directions, but it failed during executing flash-all.bat. What can or should I do to try and restore my ...
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0answers
63k views

What does rebooting bootloader do?

I recently got a OnePlus 3T, then I updated it and now it's bricked. I cannot access recovery mode. I figured out how to get to a screen where I can reboot the bootloader. What does it do? Will it fix ...
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2answers
74 views

Phone will randomly crash, then only loads to boot loader

I rooted my Samsung-sm-g930a (Galaxy s7 AT&T) And after I did, the VOLTE showed up... I thought nothing of it because it is Voice Over LTE but a week after I did that when i tried to open an app ...
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1answer
777 views

stuck in bootloader with usb debug off

i am stuck in bootloop with no recov.img installed. My usb debug is off too.how enble usb debug in bootloader ?
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1answer
855 views

Unlocking my sony xperia M5 DUAL's bootloader

Can anybody explain me how I could unlock the bootloader of my Sony's Xperia M5? Because in your developer website, there's not my phone in your unlockable bootloader list. And when I type this code ...
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1answer
1k views

Is it required to unlock the bootloader to root (normally)?

So, a long time ago I rooted my device using a Windows app called KingoRoot, and after that my tablet didn't boot. The exact same thing happened with my other device. I did not unlock the bootloader ...
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1answer
5k views

Does the installation of the custom rom like “resurrection remix” need root?

I was wondering if root is required or only unlocking the bootloader will do for custom ROM installations? I already have TWRP installed.
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0answers
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Why can't I fastboot flash TWRP?

I have adb and fastboot installed, but when I got into fastmode on my Zenfone 2 Laser it won't list the device anymore. I am using Ubuntu and the adb/fastboot seem to work just fine in the terminal. ...
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0answers
1k views

Replacing Boot loader

i want to replace my nexus 6 stock boot loader with the one i customized based on little kernel. but as long as i know there is a authentication chain from the very start of booting process in boot ...
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0answers
542 views

Impossible to use the data partition of the user in huawei

Today i have turned on my Huawei g play mini and a screen appeared saying that it's impossible to use the data partition of the user and three options:backup,reboot and wipe.I have tried everything ...
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2answers
2k views

How do I lock my bootloader again?

I tried to root my Moto G3; but I was unsuccessful. Now my phones boots with this warning.                   ...