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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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8 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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How to implement QuickBoot in AOSP? [on hold]

I am interested to know and implement the QuickBoot in Android Linux Kernel/Bootloader, How to implement it with AOSP ? Please let me know how i can proceed further ? P.S- Android support by default ...
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57 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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54 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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11 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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33 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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1answer
449 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
67 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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132 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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14 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
74 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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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
25 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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50 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
155 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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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
71 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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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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14 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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61 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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28 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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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
52 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
116 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
149 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
106 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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655 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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55 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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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
546 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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404 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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44 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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43 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
451 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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71 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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142 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
80 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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65 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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639 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
60 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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29 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
44 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
76 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
52 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
81 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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113 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
33 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 ...