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Questions tagged [bootloader]

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

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14 views

stuck on“Downloading… Do not turn off target!” when trying to boot via adb

I wish to flash a custom ROM on my galaxy tab a. To do this I downloaded ADB and twrp-3.2.3-0. when U run the command adb reboot bootloader my tab gets stuck on downloading... do not turn off target. ...
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1answer
16 views

I need to relock bootloader

I was trying to unlock my phone, LG Aristo, so that I could sell it. I unlocked bootloader, and now I need to relock it. How do I do that?
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13 views

lenovo a6010 fastboot < waiting for any devices > when trying to flash

I want to root my device(Lenovo a6010),am now trying to install TWRP but fastboot can't see my device when I try to flash the image, even though "fastboot devices" yields my device. Usb debugging ...
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0answers
68 views

Corrupt and locked Pixel 2 bootloader

I recently came in the possession of a Pixel 2 that will not boot and instead displays the following error (see the image below for more details): ERROR: Slot Unbootable: Load Error The friend that ...
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1answer
48 views

Sony F5121: Forgot Device Encryption Passwort, locked bootloader

I forget the device encryption password for my F5121 (locked bootloader). Is there any way to hard-reset the device, so I can use it again (I don't care about the data on it)? I already tried some ...
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18 views

Does manual firmware update needs boot loader unlocked?

I tried manually update my phones firmware but I didn't get any notification after I put zip file to root directory of internal storage. So does it need boot loader unlocked?
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1answer
26 views

Boot from SD or external hardware device?

I've tried researching this before, but was unable to encounter an answer. Can you boot a rooted device through USB-C, SD, or something? I'm currently running a Galaxy S9+ and want to keep Android Pie ...
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1answer
47 views

Pattern unlock required when starting phone

AFAIK on Android 7 Nougat, when you set pattern unlock, the user is not required to enter the pattern to power up the phone. However, on Android 8.1 Oreo (I'm running a Wiko VIEW MAX Android 8.1 phone)...
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1answer
26 views

Unable to unlock bootloader for HTC 816G android phone

I unable to unlock the bootloader for HTC 816G. I am trying to do this on a windows 10 laptop. The issue is that when I enter command 'adb devices', there is no device found when the phone is on ...
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1answer
29 views

Lock bootloader with broken USB port

I bought a Xiaomi Mi A2 maybe 10 months from now, and from changing software, or some strange things, I broke the USB port. The strange thing is that only the "OTG" part got broken. I mean, I still ...
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0answers
60 views

Android verified boot and custom ROMs

I'm trying to figure out how exactly works the Android Verified Boot process and its usage with custom ROMs. The documentation I found on it is unclear (or outdated) as there seems to be several ways ...
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1answer
28 views

I Have an LG P769. I am trying to root it and it is not working

Forewarning: I am not exactly an expert on this type of thing. I have tried several things, but the problem seems to be that I cannot get into the bootloader via "adb reboot bootloader" or by ...
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98 views

Asus Zenfone Max Pro M1 unlock bootloader process stuck at sending file

Begin fastboot flashall ------------------------ Erase Data: Yes Support All device current-slot is current-slot buildtype is user target reported max download size of 536870912 bytes sending '...
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1answer
85 views

Rooting Sony Xperia xa2 ultra

I permanently deleted my "DCIM" folder from my internal storage while connected to my pc using a usb cable, before unlocking the bootloader and factory resetting my phone and rooting my phone and ...
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0answers
25 views

Appending large length encoded in DER to custom recovery

I want to install custom recovery with locked bootloader by exploiting some bugs following this guide https://forum.xda-developers.com/xiaomi-redmi-5a/how-to/bypass-bootloader-lock-redmi-5ariva-...
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0answers
24 views

Why stock kernel is not being restored even after flashing boot.img?

I have a moto g4 plus(rooted) which is stuck on bootloop. I dropped the device and 1/3 of the screen was gone but the game I was playing was still on the screen. So I restarted my device but it stuck ...
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0answers
28 views

Seemingly dead Sony Z5 Compact gets detected as QHSUSB Bulk

My 2 year old Z5c (E5823, non rooted, official Sony Nougat update) died while updating some app, and doesn’t show any signs of life since then. Connecting the charger doesn’t turn on LED indicator, ...
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2answers
358 views

Orange state: can't boot into fastboot after bootloader unlock (REALME 1)

Can anyone help me with this? I unlocked my bootloader successfully. But after that, when I am trying to get into fastboot mode, I am not able to do so. Whenever I run adb reboot fastboot, phone ...
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0answers
30 views

unable to flash stock rom in swipe elite plus

I'm trying to flash MIUI 8 on my Swipe Elite Plus. It fails and the is device not booting; it's stuck into the Videocon boot logo. After that I successfully flashed the Swipe Elite Plus stock ROM, in ...
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0answers
23 views

SM-G130E phone is not booting after the Samsung Logo (Samsung star Duos 2)

This icon (!) comes when im trying to hard reset by Volume up + Home + Power. Any solution?
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0answers
59 views

My honor 6x stuck on logo screen after update

My honor device stuck on logo screen after installing the official update, unable to access the E-recovery and my bootloader is unlock, i try to unbrick my phone using multi tool but they software is ...
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0answers
101 views

Unlock bootloader in Asus Zenfone max plus m1

Could someone please tell me how to get bootloader unloaded on the Asus Zenfone max plus m1 I have already tried the official unlock tool put out by Asus and it doesn't do anything but restart the ...
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1answer
79 views

actual limitations of locked bootloader

I have read in many posts that a locked bootloader prevents from flashing custom ROMs, because it checks the digital signature of the ROM itself. I thought a "bootloader" was only responsible for ...
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0answers
41 views

fastboost doesn't see device on linux even with su and sudo

so i Had a trouble booting into download mode on my Samsung Galaxy J4 to boot twrprecovery.img and not flashing it after enabling "developers options" and "USB debugging" and "Unlock OEM" now ...
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1answer
592 views

Unlock Bootloader from EDL mode via MSMDownloadTool

Problem I'd like to know the proper process of "hacking" emmc_appsboot.mbn in order to flash already an unlocked bootloader from start. I didn't want to ask for a file from an already unlocked phone ...
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1answer
36 views

Phone turned off for empty battery. Now it gives “No command”

My non-rooted phone (Morotola MOTO G5s Plus, bought just 2 months ago) just reached the 1% battery and automatically Powered Off. I charged it for some hours. Tried to turn it on but just the flash ...
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2answers
382 views

ADB/Fastboot not detecting Android stuck in bootloader

I tried to flash the most recent android pie update to my pixel 2 only for it to fail writing partitions even though I followed a recent guide to my best ability. Now, the phone is stuck in the ...
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1answer
162 views

Have oem unlocking option available in nokia 3 ,do i have to unlock bootloader?

there are guides on rooting and it first requires to unlock bootloader on nokia3, at first i did do it but due to some issue i had flash firmware ,after flashing back there was a option available of ...
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0answers
117 views

Can't unlock my phones bootloader

I'm using a local branded chinese phone. And my phones comes with locked bootloader. As it is a local branded phone, manufacture doesn't provide a official way to unlock it! I've tried many way I ...
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1answer
216 views

Unlocking Bootloader Android 7.1.2

I have a RCA device running Android 7.1.2. I'm having difficulty unlocking the bootloader. On my device I've an option to turn on OEM Unlocking. When I try it asks if I want to enable when I select ...
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1answer
2k views

Huawei bootloader: what is “FB Lock” and how to unlock it?

I was playing around with my spare Huawei phone trying to bypass the security without wiping data and came along this article: https://blog.salvationdata.com/2018/09/07/case-study-mobile-forensics-a-...
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1answer
83 views

Android device load process (preparing flashing)

Standard Android OS load process looks like (from docs): BootROM (starts with 'on' button) Bootloader Kernel init/mounting Zygote+Dalvik VM System services But I have a difficulties ...
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75 views

Motorola Moto G5 crashes when trying to use WhatsApp’s web app and won’t reboot anymore (LineageOS/ViperOS)

First, I tried to install LineageOS on my Motorola Moto G5 which worked perfectly fine – until I installed WhatsApp and tried to open its web application. Therefore, one has to scan a QR-code. But ...
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1answer
1k views

how to succesfully boot into bootloader/fastboot mode on alcatel 5049z smartphone

I am having issues( i am a "novice" when it comes to unlocking a30 android bootloader with a PC...) with booting into bootloader/fastboot mode on my stock rom--android 7--Alcatel a30(non rooted 5049z?)...
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1answer
101 views

Can't unlock bootloader Moto G5 XT1672

I'm trying to unlock the bootloader on my Moto G5, the adb commands works, but I can't find my device in the command prompt when it is in fastboot mode. I was following the instructions on this ...
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1answer
405 views

How do I lock my bootloader with adb

I tried to unlock my bootloader with fastboot but that didn't work >fastboot oem relock XXXXXXXXXXXXXXXX FAILED (remote: 'root type is risk') Finished. Total time: 0.014s So I thought that adb ...
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0answers
60 views

Unlock Moto X without using Motorola Unlock?

Motorola provides a site to unlock the phone. essentially you paste in data fastboot gives you, then you past in the result that the site gives you to fast boot. Is there a way to unlock the phone ...
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1answer
528 views

How to prove that the bootloader of a device is unlockable when it currently shows as locked?

A newly bought Pixel device from a random seller can switch between carriers but the bootloader shows as locked. Are all pixel devices' bootloaders locked by default? And how to show that it is ...
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1answer
102 views

Multiple problems with HTC M8S after rom upgrade

I have an old HTC M8S I'm trying to give a new lease on life by getting off the stock ROM. It's an EE (read Orange UK) branded phone. romver: 1.11.61.2 CID: ORANG001 ModelID: 0PKV10000 Project: ...
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2answers
786 views

Fastboot unlock failed

I have a Nokia 6 and whenever I try to unlock my device I am facing error. The command sudo fastboot oem unlock The result (remote: oem unlock is not allowed) Any suggestions?
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1answer
145 views

Why can't Odin recognize the phone in system recovery?

If I boot the phone in system recovery, it doesn't detect the phone: But when I boot the phone normally, Odin can detect it: If I flash TWRP recovery anyway, the log is: <ID:0/004> Odin ...
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1answer
551 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
252 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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0answers
316 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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477 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
274 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
81 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
120 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 ...