Questions tagged [bootloader]

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

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23 views

Why can I still not receive OTA updates after flashing stock firmware on my Moto G7?

After purchasing a Motorola Moto G7, I rooted it using TWRP and Magisk. After a few months of having it rooted, I decided to undo the process in order to restore the ability to receive OTA updates. ...
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50 views

Unlock Huawei BootLoader- Is brute force the only way now?

Problem So I wanna unlock the BootLoader on my Huawei Mate 9 to install LineageOS on it. I already read that Huawei stopped giving BootLoader codes. Is the only way (for free) now, to brute force all ...
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22 views

Google Pixel Bootloader unlock

I have a pixel phone struck in boot loop (just show google logo and restarts)! I didnt enable oem unlock and usb debugging ! I want to unlock the phone to reflash the phone! My Recovery also dont ...
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1answer
113 views

Can “Magisk” hide bootloader status?

I am planning to flash Lineage OS 14.1 on my Lenovo p1ma40 to give it a new life. But I often have to do various payment and transactions using banking apps. As you might know , these apps check for ...
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64 views

Android Verified Boot and generation of vbmeta image

I'm in the process of unofficial device bringup, and I'm stuck unable to progress due to Android Verified Boot. As per specification Android Verified Boot can be disabled with the --disable-verity and ...
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20 views

What happens in low level when booting a Android Q (10) device?

I have read this article which introduce Linux booting process. However, even if Android system also use Linux as kernel, the surrounding software is greatly different. So I have searched this post ...
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2answers
29 views

How can i relock bootloader of infinix smart 2 with or without data loss?

How can i relock bootloader of infinix smart 2 with or without data loss? i haven't install twrp and root device.
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92 views

Stuck on “Bootloader is unlocked” screen, can't boot into recovery

So I wanted to root my OnePlus 6 after updating to android 10 (OnePlus6Oxygen_22_OTA_041_all_1911142043_dde113e5 3cd0f9.zip) I tried booting into twrp via fastboot using fastboot flash boot twrp.img (...
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75 views

LG G4 can't fastboot/reboot bootloader

Ola! I'm playing with a LG G4-H815. When using adb reboot bootloader, the phone just boot on normal mode. When doing the Volume Up + Power button thing, I manage to land on Download Mode but nothing ...
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1answer
176 views

Is there a way to root an Android phone without unlocking the bootloader?

I've tried almost any method to root my ASUS ZenFone Live, but no one seems to work. Also I only need root, no unlocked bootloader (don't want to wipe data) or custom recovery (not essential ATM).
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19 views

How to resolve endless bootloop on Kyocera Hydro VIEW (C6742)?

Does anyone know of any method to access the ADB shell, the bootloader, or fastboot mode on the Kyocera Hydro VIEW while it will NOT boot to the Android OS? Similar to the question here (Optimizing ...
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1answer
157 views

Huawei P9 lite enter bootloader without volume keys and access to system/recovery

About phone: Huawei P9 lite VNS-L21C432B161 (central Europe) First modifications A long time ago i unlocked bootloader and successfully rooted the phone. I turned off OEM unlock option in settings ...
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1answer
122 views

Can I flash Android on device with overwritten mmcblk0?

Can Android device with fully overwritten /dev/mmcblk0 (without /dev/mmcblk0p* partitions) be still flashed using fastboot? Is it true that overwriting /dev/mmcblk0 does not remove /dev/mmcblk0boot* ...
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83 views

Upgrading a locked Android 4.4.2

I want to try to upgrade my Huawei Y560-U02 Android 4.4.2 to anything newer but it should at least be Android Lollipop. I opened another thread in regards for this phone in order to get the firewall ...
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12 views

Andorid Optimising Apps Bootloop?

Issue: Phone boots, then starts optimising apps (2 of 2), then proceeds to start apps and then restarts right away. Is this technically a bootloop? (since it has booted, started doing some stuff and ...
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89 views

OEM Unlock option dosent show up

recently I picked up a Samsung A10E from T-Mobile. Upon enabling developer options, I realized that the OEM Unlock option didnt show up. I tried following a tutorial where you turn off automatic date ...
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2answers
856 views

Is Multi-Boot Possible in Android?

Can you replace the bootloader of Android to create a UEFI-like environment where you can Multi-boot into another Operating System? I've seen several off-brand phones do this but I'm unsure how they ...
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1answer
121 views

Does Android Have a BIOS? [duplicate]

I'm unsure about this one but this is another one of the burning questions I have on the top of my head. Does Android have a BIOS? If not, how does it boot up? What is the software that actually boots ...
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374 views

Unlocking bootloader and rooting lg phoenix 4

I recently purchased an lg phoenix 4 (I'm-x210apm) it is 8.1.0 oreo ive been trying to unlock the bootloader but cant seem to do it. Ive tried just about every method ive found on the internet but ...
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18 views

How to boot into a android device with usb stick with android on it [duplicate]

I am going to make use of Android Open Source Project (AOSP) and will develop custom android. But I want to test it on my tablet too. The problem is I don't know how to do it. Is there any BIOS like ...
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1answer
120 views

How to disable bad RAM addresses and fix bad storage blocks?

The symptoms which device presents are: Restarts randomly with a previous freeze of a few of seconds (this is becouse of /proc/sys/kernel/panic is set to 5). Sometimes with a blue filled screen. Even ...
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10 views

How do i install firmware or recovery menu when android smartphone reboots every 5 seconds? [duplicate]

I tried to install TWRP to TP-LINK Neffos C5A and phone started to reload every 5 seconds. Now i just want it to work. So, i tried to enter some menu (Volume UP + Power, Volume DOWN + Power, Volume ...
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13 views

How to install android on a blank phone? [duplicate]

Say I have a phone that I have wiped completely (all storage on the device has no data on it). Is there any way to install android on a phone without using a bootloader? like can I take an android ISO ...
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1answer
35 views

What is the name of android's equilivent to UEFI?

Sorry if this is a dumb question. I'm having the hardest time finding the name of android's analogue of the Unified Extensible Firmware Interface. Maybe they are specific to each manufacturer? I am ...
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69 views

Android TV stuck at boot animation after using `reboot bootloader` in terminal emulator

I used reboot bootloader in terminal emulator of my android TV. Since then it's stuck at boot animation. I tried connecting it to my laptop using USB type A male to male cable and USB type A to C as ...
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1answer
380 views

unable to go into fastboot on LG phone

I have been told that LG phones are painful to get into fastboot but i didn't realize it was impossible. I have the LG K8 2017 (LG-M200n) and I have tried all: #adb devices shows the device is listed, ...
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14 views

How do I unfreeze my LG L15G sunrise?

I keep trying to turn it on and at first it just got stuck in a boot loop, so i factory data reset it and after the reset when it boots itself up it freezes on the LG powered by android screen. I have ...
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26 views

Is there anything like live CD for android phones?

We can go into recovery mode in android phones, which is usually home+volume up+power for samsung phones This answer says that the recovery mode is like a simple OS that the device boots into. This ...
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1answer
112 views

How to install a 64bit gsi

I know, to some people, this question may seem illogical, but I have tried every possible solution available. I want to flash a 64 bit AOSP phusson's GSI in my Redmi S2, which has stock 32 bit OS, ...
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33 views

How do I change the bootloader splash screen for LG Stylo 2 MS550?

OK, I have an LG Stylo 2 MS550 originally flashed for the Metro PCS carrier with a stock Android 7 ROM. I've re-flashed the phone with a lineage custom OS ROM to Android 7.1.2. I've also flashed ...
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15 views

How to completly disable “unfortunately, (Example App) has stopped working” Permanently

Hey Guys, How's it Going? So I have a Samsung Galaxy S4 SGH-I337, ATT locked, which means I cannot unlock the bootloader. I have gained root access and am trying to permanently delete every Samsung ...
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86 views

How to unlock bootloader on nexus from bootloader/PC command line

I have a nexus 5X phone, which needs a factory reset to fix it's infinite boot loop. The problem is that the bootloader says DEVICE STATE - locked. Is it possible to fix this?
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1answer
34 views

My phone is htc 816g dual sim phone. There is no oem unlocking option in developer mode. How can i fix it?

htc 816g developer options..! No oem unlock option enter image description here
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7 views

My Moto X Play(lux XT1563) won't boot to system

Every time I try booting into the recovery, the screen goes black and then goes back to the bootloader. This is what happens step by step: To check if it's connected fastboot devices Goes to twrp, ...
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1answer
69 views

Will flashing a custom ROM brick my Huawei while the bootloader is locked?

I have a huawei device(Huawei G Play mini). Since huawei stopped providing BL unlock codes, i never got to unlocking it. I flashed TWRP through flashify and it worked fine with a locked BL and later ...
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1answer
165 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
258 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
182 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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2k 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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72 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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0answers
27 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
828 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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445 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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67 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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45 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
598 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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95 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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168 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
83 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?