Questions tagged [bootloader]

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

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649 views

(Samsung) Possibility to check bootloader status using PC

Is it possible to check bootloader status using adb of a samsung device back from 2014 or older? (s5 and below) there's no fastboot, and no "OEM Unlock" in developer options and since i need to get ...
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1answer
261 views

As of vendors - whose bootloaders are easy to unlock, and whose not?

The vendors differ in their attitude to unlocking the bootloader. Some require codes for unlocking, some not. Some require proprietary, Windows-only software, other not. Which of the vendors are ...
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334 views

Is it possible to unlock the bootloader of moto e4 without computer?

I want to root my phone but I dont have a computer to unlock the bootloader so im wondering if it is posible to do this without a computer if so how? I tried googling how to do this but google thinks ...
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535 views

Possible to use mods with locked bootloader? Xposed, Root, zip files Twrp

I want to unlock bootloader install twrp, flash xposed and magisk zip files through twrp. Flash the stock roms recovery again relock the bootloader to be able to use those mods. Is this possible, i ...
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40 views

How to change bootloader device name? [duplicate]

Please read this first: How to hide or spoof bootloader info from any app? Can we at least change the bootloader name? Thereby altering the device identity by giving a new code name. I hope you will ...
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1answer
2k views

How to hide or spoof bootloader info from any app?

I have spent hours trying to perfect build.prop and when I finally was at the end I forgot about this leakage. Any app can easily know device's bootloader info. I realized this when I ran CPU-Z. ...
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1answer
315 views

What is the lock in bootloader?

I know how to unlock. It's through fastboot oem unlock. I know why the manufactures place a lock. It's for security reasons. But what is the lock? Is it a file in the system, saying "Hey, the ...
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1answer
85 views

Xiaomi Mi5s plus' display won't turn on after updating LOS

I encountered a very strange problem with my Mi5s plus (natrium). I was flashing the recent LOS 20180717 version, Open GApps Aroma and Magisk 16.0 via TWRP (in that order). That's my usual procedure ...
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0answers
124 views

Sony XPeria T service menu app missing

I just found out that I have a Sony XPeria T, not a Sony XPeria Z1 Compact. After years of owning it. Wow. So I wanted to try some things that I previously discarded because they weren't possible with ...
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112 views

Asus Fonepad 7 bootloader is lost

Trying to flash my tablet (K012 Fonepad 7 fe170cg) I ran this commad fastboot flash fastboot boot.img and now the bootloader is lost and just a splashscreen is shown after I turn the tablet on. So ...
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2answers
62 views

Who is responsible for locking the bootloader?

I was wondering who is in charge of the locking of bootloaders. I recently chatted with a representative from LG-UK enquiring about the unlocking of bootloaders. I was told that I need to speak to ...
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2answers
2k views

How do I know If my phones Bootloader is locked or not?

I want to flash TWRP & SuperSU to take a backup, but I read that if you flash TWRP with a locked bootloader it would brick my device & wipe my data, now that would just defeat the purpose. How ...
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2answers
7k views

How to Upgrade Sony Xperia Z3 Compact (D5803) to Android 8.1?

How do you upgrade the Sony Xperia Z3 Compact (D5803) to Android 8.1? There are a number of web pages that attempt to answer this question, but none of them provide every step along the way. These ...
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1answer
120 views

Is my Android device booting into a “stealth” partition?

OK, this is a weird problem I’m encountering with an Android system I’ve been using without problems for several years now… and I’m practically out of ideas on how to potentially fix it. Let’s start ...
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261 views

Moto g4 plus can't be unlocked

When I go to unlock my moto g4 plus, I get a message that my computer cannot be unlocked. This is the getvar all result (bootloader) version: 0.5 (bootloader) version-bootloader: moto-msm8952-B1.07 (...
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1answer
72 views

My phone doesn't boot at all after restarting bootloader

My phone is Huawei Y3II. Now, my phone is not starting, no matter how I press the power button. I have tried Smart Phone Flash Tool, but it failed and it got an error 2004 - 6045. Now, it does ...
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0answers
1k views

Android x86 won't boot with GRUB 2 - stuck at Detecting Android x86

I recently installed Android x86, using ~~99 GB free space on an old drive, partitioning it into /dev/sdb3. After reinstalling grub (accidentally selected "yes install grub" in the installation menu),...
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1answer
1k views

HTC one M8 won't flash RUU or unlock Bootloader

I hope u r havin a good day -I just found out that model on the back of the phone is 0P6B100 while it's 0P6B700 in getvar, I found that out after trying all the x.xx.651.x RUUs flashed down below cuz ...
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2answers
1k views

Nexus 7: Unable to install factory image, stuck in < waiting for any device >

I want to restore factory android on my Nexus 7 2012 WiFi. I'm following the official guide. I start the device in fastboot mode by executiong: adb reboot bootloader This works well. But when I ...
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0answers
122 views

Galaxy S4 SCH-I545 stuck in Start Up Failed

After using the Official TWRP app to flash TWRP recovery to my Samsung Galaxy S4, I am stuck on a screen that says "Start-Up Failed" and "Secure Fail: Kernel." I think it is because I flashed it to ...
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0answers
2k views

Android x86 not change resolution on Virtualbox and VMware Workstation

I installed android-x86_64-6.0-r3.iso and after launch I see: I tried to change resolution as described here: Android x86 Marshmallow not booting on Virtualbox and VMware Workstation https://www....
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1answer
174 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
61 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
266 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 ...
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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
885 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 ...
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1answer
156 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
838 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
311 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
3k 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 ...
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1answer
161 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
134 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
1k 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 ...
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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
507 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 ...
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1answer
1k 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
19 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-...
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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 ...
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1answer
304 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
11k 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
559 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 ...
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1answer
255 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 ...
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1answer
279 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 ...
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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
40 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) ...
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0answers
279 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 ...