Questions tagged [bootloader]

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

Filter by
Sorted by
Tagged with
1 vote
0 answers
29 views

Can't unlock my Acer B3-A30 tablet's bootloader

So I have an Acer Acer B3-A30 tablet, which is stuck on the Acer logo. I'm trying to unlock it's bootloader (with fastboot mode), so I can reflash it (with a stock rom), but it just shows an error ...
user avatar
  • 111
0 votes
0 answers
14 views

How do I unlock the bootloader of my Honor 20 Lite

I recently tried to unlock the boot loader of my Honor 20 lite but failed, due to Huawei removing the online code request thing. And I thought that this would be the right place to ask. So, whenever ...
user avatar
  • 1
1 vote
1 answer
45 views

Backup Pixel 3 before erasing phone with TWRP

I am attempting to take a recovery/backup of a Pixel 3 using TWRP. I do not need to flash TWRP, just boot from it to perform the backup. Meaning, I don't care if TWRP is installed permanently. The ...
user avatar
  • 121
0 votes
1 answer
22 views

Huawei MediaPad T5 (AGS2-L09) stuck at TWRP

I unlocked bootloader on Huawei MediaPad T5 (AGS2-L09). Then I put TWRP on it and everything was fine until I installed UPDATE-SuperSU-v2.46.zip using TWRP. After that the tablet stuck at Huawei ...
user avatar
  • 143
1 vote
0 answers
61 views

Google Pixel 2: Is it possible to verify that it cannot be OEM unlocked and why?

Background Apparently, I have bought yet another brand new phone that is absolutely useless and has a value of zero. It is a Google Pixel 2. I would like to OEM unlock it. This option is greyed out in ...
user avatar
  • 141
1 vote
0 answers
17 views

unlock password screen for htc m8 steps

I have an HTC M8 that is password screen locked. I'm tryin to save the data on this phone. Can't get into settings cause its locked. Tried to install Twrp fastboot but can't I think because usb ...
user avatar
  • 11
1 vote
0 answers
254 views

Error while unlocking bootloader | FAILED (remote: 'Unlock failed - Err:0xffffffff')

I was trying to unlock the bootloader of an old Redmi Note 4x, Downloaded fastboot and adb. I first enabled developer option and turned on USB debugging. I tried finding OEM unlock option which was ...
user avatar
0 votes
1 answer
73 views

Samsung A21s software fastboot is disabled

I have a Samsung Galaxy A21s phone that I am trying to install Android 12 on. I have unlocked the bootloader, I go into the recovery mode and I select bootloader, however when I get there, it is just ...
user avatar
1 vote
0 answers
32 views

Cannot boot into UPLOAD MODE on SM-T110, kernel panic does not work

I'm trying to boot into UPLOAD MODE on my Samsung Galaxy Tab 3 Lite 7.0, but I can't seem to find a way to do it. I was able to dump this image from the PARAM partition: But the tablet just reboots ...
user avatar
  • 101
1 vote
0 answers
35 views

LG Stylus 2 k520DY not going to bootloader and fastboot

I have a LG Stylus 2 k520DY and I want to root it. the problem here is that I can't reboot it to bootloader and fastboot. the adb commands: `adb reboot bootloader` and `adb reboot fastboot` do not ...
user avatar
1 vote
0 answers
127 views

Fastboot doesn't do anything on my device

I've seen similar topics but most of them are on Windows which is commonly solved by updating the fastboot drivers. I'm using Arch, and based on what I've read Linux doesn't even need drivers of any ...
user avatar
1 vote
0 answers
17 views

Ziox Astra Star bootloop and vertical lines

My old Ziox Astra Star phone started going to boot loop, restarting automatically without launching the OS. So, someone suggested that the ROM could have been corrupted. I remember trying to put it ...
user avatar
  • 111
1 vote
0 answers
256 views

How to enable the OEM unlocking option if isnt available in the developer options menu?

Im trying to unlock the frp and the phone , based on kirin 710 and 710A, and there is no OEM Unlock option in the developer menu. It has been issued the commands: fastboot -s usb:1-1 oem device-info ...
user avatar
  • 151
1 vote
0 answers
43 views

how to get out of select boot mode screen

When I power on my ONN tablet, I come to the "select boot mode" screen. The arrow moves up and down by itself, and I am unable to make a selection. I've changed the power button hardware ...
user avatar
0 votes
0 answers
19 views

Bootloader for huawei [duplicate]

How to unlock the Bootloader of a Huawei nova 3i device for free. Can't seem to find anything since Huawei stopped giving codes
user avatar
1 vote
0 answers
40 views

Installing drivers consecutively for all interfaces/ports within an inf file

This concerns an inf file which contain a number of interfaces/ports that need support of drivers. Instead of installing the driver for each interface/port one by one, is there a way to install the ...
user avatar
  • 11
0 votes
0 answers
102 views

Asus Zenfone Max Pro M1 boots into CSC FASTBOOT MODE instead of NORMAL FASTBOOT

I was trying to install TWRP on my Asus zenfone max pro m1. But each time it boots into bootloader by adb reboot bootloader it leads me into CSC FASTBOOT MODE. First time I ignored it. But when I ...
user avatar
0 votes
1 answer
263 views

Pixel 4A ArcaneOS removal/Sideload USB debugging/ unlock bootloader

So I've swapped my Redmi for a used Pixel 4A which has this ArcaneOS installed. The issue is that there is no build number in about phone section so I can't really flash anything. My question is if I ...
user avatar
1 vote
0 answers
35 views

Is the bootloader button sequence defined in the firmware?

For a custom device that doesn't have the traditional phone buttons and no screen, is there a way to determine the button sequence to enter bootloader? I've seen the article howtogeek.com/249439/how-...
user avatar
  • 111
0 votes
0 answers
56 views

Installed a bootloader that is too new on a Samsung A40

I have a very simple question and that question is how to fix a phone that is bricked because to bootloader is for a newer version for Android. All it does now is show the Samsung logo and if the ...
user avatar
  • 63
0 votes
1 answer
242 views

My phone is not entering fastboot mode

I just want to check whether bootloader is locked or unlocked. I am using Minimal ADB and Fastboot which I downloaded from here. I am following instructions to check bootloader from this website. ...
user avatar
0 votes
1 answer
1k views

Device doesn't show up in fastboot [OnePlus Nord]

I installed: the latest platform tools from google the universal adb driver the OnePlus USB driver USB debugging & OEM unlock are on. With the phone turned on everything runs fine. I can copy ...
user avatar
0 votes
0 answers
145 views

Root an Allwinner 100 based tablet with UNlocked bootloader but limited recovery (no TWRP)

I have an Allwinner 100 based Android tablet with an unlocked bootloader but limited recovery (no TWRP). Now, I want to root it. I've tried: adb shell or adb root from recovery: returns "closed&...
user avatar
  • 111
1 vote
0 answers
143 views

Why Fastboot boot Twrprecovery.img hangs loads after 3-4 tries

Question :- Why Fastboot boot Twrprecovery.img hangs loads after 3-4 tries? I for original backup of Nandroid from twrp recovery from PC computers I load twrp recovery image in bootloader fastboot ...
user avatar
1 vote
1 answer
90 views

How to access the download mode of a device with a outdated bootloader?

I accidentally flashed some outdated bootloader firmware and now I cannot seem to access the bootloader I tried holding the vol up + power and both to volume buttons + power but it made the phone ...
user avatar
  • 63
1 vote
1 answer
124 views

Recover data, photo, & video from a dead water-damaged Android phone

Question Recover data photo video from a dead water damaged android phone I have a old android mobile which was kept on table on which glass of water falled and water entered the mobile as its ...
user avatar
0 votes
0 answers
30 views

Autodeletion of bootup sound

a noob here My stock rom doesn't have a default boot soundBut my old device has a boot sound(Which means I can change it)Then my question is that how can I set boot up sound on my relatively newer ...
user avatar
  • 11
3 votes
1 answer
308 views

Where is Boot flow screen displayed in android

I have came across Boot flow and when there is based on boot state of a device, it shows different colot screen. YELLOW: Warning screen for LOCKED devices with custom root of trust set ORANGE: Warning ...
user avatar
1 vote
1 answer
107 views

How to unlock the bootloader of Samsung galaxy grand 2?

I searched the whole internet and couldn't find any guide for unlocking the bootloader of this specific model. my main goal is to install Lineage OS but the instructions on the page don't seem to be ...
user avatar
1 vote
0 answers
56 views

How to get information parameters from kernel after boot loads android?

when an (Android) bootloader starts loading kernel, it passes some parameters to the kernel (for example androidboot.verifiedbootstate, ...),how to get the information whether boot gets successful or ...
user avatar
1 vote
0 answers
76 views

How to execute Android verified boot during first boot after updating OS in Android

I need to execute AVB (Android verified boot) during first boot after updating Android OS. BOARD_AVB_ENABLE = true is already present in the mk file device/hikey/common/BoardConfigCommon.mk in the ...
user avatar
0 votes
0 answers
59 views

How to I unlock the bootloader on an Honor 7s?

I've attempted to unlock the bootloader using the fastboot method using ADB tools on my pc, which have yielded no results. I open powershell in the folder containing all the ADB tools and run "...
user avatar
1 vote
1 answer
170 views

How to remove the Ubuntu Touch kernel at startup?

I have tried the latest Ubuntu Touch on Nexus 5, but it was useless because an exential app doesn't work with Anbox. So i want to try an Lineage 18.1 unofficial image. I have installed the image with ...
user avatar
  • 261
1 vote
1 answer
55 views

Does the bootloader reset after removing the battery?

After successfully flashing a modern custom ROM on my old phone, I tried doing the same with my girlfriend's old Lenovo Vibe P1m. However, after mistakenly pulling out the USB cable at the worst time ...
user avatar
  • 111
1 vote
0 answers
59 views

is it possible to replace the bootloader firmware to unlock a 64bits cpu?

Sm-j700m cpu is arm64 but only allows 32bits android on it. From here: https://www.reddit.com/r/LineageOS/comments/p9p3s3/comment/h9zan52/ I thought that, if the bootloader could be replaced or ...
user avatar
  • 151
0 votes
0 answers
325 views

t00j flashing unlock unknown command

I have been trying to unlock my devices(zefnone 5 t00j) bootloader, when i type fastboot oem unlock i get FAILED (remote: 'unknown OEM command') fastboot: error: Command failed on the cmd, and when i ...
user avatar
0 votes
1 answer
158 views

Note 10+ not showing up in Device Manager while in fastboot

I'm trying to unlock my bootloader so that I can root my Samsung Galaxy Note 10 plus. The problem is that fastboot devices doesn't show any devices, so I found out that I need to install new fastboot ...
user avatar
  • 11
0 votes
0 answers
177 views

Reverse engineering the Stylo6 bootloader unlock

I've unlocked the bootloader and I'm analyzing the backups from before and after the unlock to find many partitions have changed, I want to find a way that will anyone to unlock their bootloader in ...
user avatar
1 vote
0 answers
52 views

How factory reset process looks in details?

So I tried to find answer for this question, but it is very hard to find something other than simple instruction of doing factory reset and backuping data. I'm interested of detailed process of the ...
user avatar
  • 111
1 vote
0 answers
55 views

How to press power button using fastboot command?

I want to unlock my Oneplus 6 bootloader. But my power button is not working, so at the screen where I have to select, 'unlock the bootloader' I don't know how to do it without Power button?? Hope u ...
user avatar
  • 11
1 vote
0 answers
105 views

Can I use Odin 3.12.7 T Flash option to install u-boot onto my SD card without tripping knox?

I'm curious, if I can eventually dual boot on my Galaxy Tab Active 3, because some games are broken on the newest One UI and I want to take control over my OS without the limiting security and ...
user avatar
1 vote
1 answer
205 views

how to get data from Android phone internal memory in downloading or recovery mode

My Yotaphone 2 started to boot loop (can not finish booting). I can only reach "Downloading mode" or Android system recovery with options: "reboot system now" "apply update ...
user avatar
  • 11
0 votes
0 answers
29 views

Is there any way to change default boot mode?

A couple months ago I've installed Lineage OS on my phone and I'm pretty sure I've set the default boot mode to be fastboot. Now, whenever I boot my phone: it boots on fastboot mode. Which is not ...
user avatar
1 vote
0 answers
56 views

What can I do with an open source phone/kernel?

So this is my very first attempt in any kind of android development. I have here my phone's official kernel source. I was wondering if I can build this to boot or if it's ready for building. Also this ...
user avatar
0 votes
0 answers
27 views

Redmi note 3 showing enter code to unlock. After successive reboot

Redmi note 3 asking for password after successive rebooting the phone and i couldnt enable the password or any locking mathod in phone. After rebooting the screen gets more brighter and this massage ...
user avatar
1 vote
0 answers
96 views

What is the difference between `fastboot reboot bootloader` and `fastboot reboot-bootloader`?

fastboot provides two methods for rebooting a device into the bootloader: fastboot reboot bootloader fastboot reboot-bootloader How (and whyy) are these two commands different and when is it ...
user avatar
  • 111
2 votes
0 answers
60 views

Trying to root Pixel XL

I'm trying to root a Pixel XL in order to use 'su' in an adb shell to run gdbserver. I've unlocked a few other phones to do this but the process seems a little different now or it is for this ...
user avatar
  • 121
1 vote
0 answers
42 views

Redmi 8 bootloop

My Redmi 8 phone is in bootloop. It got stuck with its Remi logo and does not start. I am trying to unlock the bootloader but I didn't find a way other than mi unlock which I don't know how to use it ...
user avatar
-1 votes
1 answer
163 views

What does it mean for a bootloader to be locked/unlocked?

What exactly does it mean in this context to be locked anyways?
user avatar
  • 565
0 votes
0 answers
45 views

Bootloader won't load any commands

My Bootloader won't do anything, when I type fastboot getvar all it stops giving the strings half way, or when typing any other command it will only give ... and nothing more. Bootloader log only ...
user avatar
  • 9

1
2 3 4 5
11