Questions tagged [bootloader]

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

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26 views

Re-locking bootloader with stock ROM/recovery - Wileyfox Swift 2 Plus

I recently unlocked the bootloader on my Wileyfox Swift 2 Plus to take a partition image, as per this answer. I didn't flash the recovery or make any change to the ROM, and the device is not rooted. ...
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1answer
25 views

I can't unlock bootloader on fly fron linux

My OS is majaro linux. My phone is fly nimbus 8. I tried to unlock bootloader on it. I followed the instruction. First I go to the Dev mod then enable OEM unlock and USB debugging. Second I typed: ...
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1answer
20 views

Does my Galaxy S6 have an unlocked bootloader?

I want to install the Resurrection Remix custom ROM on my SM-G920I (Australian Version). Before I start doing anything, I need to make sure that the bootloader is unlocked, so I don't brick my phone. ...
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35 views

Fastboot doesn't see device but ADB does (windows 10)

I am attempting the unlock the bootloader on my Google Pixel 2 XL. I know this problem seems to be very common, but I have yet been unable to find a solution for my particular case after searching ...
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12 views

Attempting to fastboot LG Tribute Dynasty,

So I am currently trying to flash an operating system onto my android and every time I try the command adb reboot bootloader It fails. The command simply reboots the phone like normal. Device: LG ...
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23 views

Android OS (6.0) occasionally hangs on bootloader

We run a custom Android version build on top of Android 6.0 with some minor changes specific to our business needs. We're now facing an issue where tablets sometimes don't go past the bootloader ...
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1answer
54 views

bootloader boot loop

I got a new Pixel 2 and wanted to load an TWRP backup from my previous Pixel 2 (with stock ROM) onto it, instead of setting it up freshly. So I booted the new device clicked through the settings ...
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219 views

How to unlock bootloader on Sony Xperia XA2 Plus?

I'm following the tutorial on https://developer.sony.com/develop/open-devices/get-started/unlock-bootloader/how-to-unlock-bootloader/ . Following are commands and their outputs. sudo ./fastboot ...
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31 views

Fastboot Device not Detecting my Device

I'm following this tutorial about how to unlock bootloader on Moto. My device is a Moto G5, and my computer has windows 10. On the command line, I can type adb devices and it returns my device. I ...
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26 views

not sure how to breathe life into mate 8 64gb dual sim variant

I'm at a loss here, i have nougat on my mate mate 8 but i completely forgot that you had to root nougat in a particular way. Anyway, i don't have access to erecovery, power+volUPvolDown doesn't work ...
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36 views

How to back up app data from system applications? (e.g. YouTube search history)

In 2018, YouTube triggered their kill switch / time bomb for older versions of their Android application. Their more recent versions of their app limits the search history to 50 items, which means ...
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1answer
59 views

Troubleshoot fastboot error 'remote: ' command not defined

Device: iMX 7ULP evaluation kit Platform-tools: r28.0.3 Image: O8.1.0_1.4.0_ANDROID_TOOL_7ULP_GA (ARM 32 Android 8.1) I used the image provided by nxp website on the device. Then I tried ...
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44 views

I have unlocked my bootloader but ADB doesn't detect my phone so I cant get into my bootloader mode to install TWRP

I have a Huawei P10 lite and I wanted to root my phone, so I had unlocked my bootloader after much effort, and now I'm trying to install TWRP but every time i try to enter my bootloader mode it doesn'...
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48 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
38 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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28 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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470 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
54 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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24 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
32 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 ...
1
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1answer
59 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
33 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
43 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
78 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
31 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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172 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
113 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
30 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
28 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
46 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
761 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
34 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
29 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
85 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
151 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
127 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
48 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 ...
2
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1answer
1k 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 ...
1
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1answer
41 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
534 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
187 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
204 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
319 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 ...
3
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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
88 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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0answers
84 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
2k 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?)...
1
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1answer
122 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 ...
0
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1answer
630 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
74 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 ...