Questions tagged [bootloader]

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

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Samsung phones bootloader unlock

I have a samsung tablet gt-n8000 and I want to flash a custom rom . Should I first unlock the bootloader? if yes , how to do that ? fastboot commands does not work anyway on my tablet so I can not ...
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26 views

Formatted bootloader by mistake and phone won't turn on (device: MT6570)

I have a Techno Spark 3 with a MT6570 chip and i used the SP Flash Tool to flash the ROM but i kept getting the error STATUS_PARTITION_NOT_FOUND, so i thought that if i format the bootloader it would ...
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Redmi Note 4 bricked. Flashing stock rom doesn't help. Red light blinks when connected to power

I have a Redmi Note 4 which I tried to root and ended up bricking it. It would be very nice if some kind person could get me out of this.. If you don't wanna read the whole story just jump to ...
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Is it possible to have a custom ROM with a locked bootloader?

I just mention in-advance to please correct me if I'm mistaken on anything, I've a limited tech proficiency. I've a Samsung S9 (Android 10) and I wish to install an AOSP ROM (also on Android 10), but ...
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using fastboot to turn on Pocophone F1

My power button is broken internally, I can't press it to turn on my phone. How should I turn it back on? This is what I do and fail: Holding volume down and plugging cable I get the fastboot logo, I ...
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How do I get fastboot/adb to find my device after a reboot?

I am trying to unlock the bootloader of my Samsung Galaxy J7 Sky Pro using this guide. If I do > adb start-server > adb devices I get my device as connected, however when I then reboot into the ...
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42 views

Any way to flash a custom rom without twrp recovery?( It doesn't work on my device)

I am trying to root my Galaxy Note 10.1 (sm P605). I've already upgraded the firmware with odin and flashed twrp with odin as well. Now after flashing twrp it boots normally then I switched it off and ...
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Android Boot Logs Before Logo

BTW, I am wanting to know what Android Boot Logs come before the Android Boot Logo. I see an Android Boot Logo, and I have to hold the power button, but what does it show in the boot logs in the ...
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29 views

How to use ODIN with more than a dozen of mbn, bin, img, ext4 files?

I'd like to flash my SM-T813 because it's in a boot loop. I downloaded supposedly the latest firmware. I think it was a tar.md5 file, I peek into this tar file and it's a whole bunch of files: ODIN ...
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12 views

Galaxy S4 Not Showing in ADB [duplicate]

I want to root a Galaxy S4, yea I know it's an old phone, but perfect for what I want to do. Problem is, once I do adb restart bootloader, the device is no longer on the adb devices list, so I cannot ...
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1answer
41 views

Unlocked bootloader with OEM locked inside system in Oneplus3. HELP?

I have a OnePlus3 device which was rooted(TWRP + magisk + stock rom). But as new rom was buggy, i install old stock rom + stock recovery without root. After installing by mistake i lock OEM from the ...
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If I generate my own custom key and sign a custom ROM, then will I be able to have root access after locking the bootloader?

So what I want to do is boot into my own custom ROM with a locked bootloader. I have a OnePlus 6T so it's possible, but can I have root access after I boot with a locked bootloader? If I replace my ...
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28 views

Meaning of Samsung bootloader codenames?

I realized that you cannot install firmware with older bootloader version than the one in the device. To do things more correctly and safely, I want more fully understand the bootloader codename ...
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Duel Boot Android Issue with Lenovo x1 3rd Gen Tablet

I have a Lenovo x1 3rd Gen Tablet. I cannot get android to boot no matter what I choose. I am stuck with a black screen and a cursor in the top left corner. I cannot get into the blue setup screen. I ...
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109 views

Asus Zenfone 3 Max - ZC520TL - Cant boot anymore - Only fastboot

I have a Asus Zenfone 3 Max, ZC520TL, MT6737M WWW_phone X008_1, 7.0/NRD 90M 14.10.1808.119-2018 I wanted to install lineage on my phone without rooting it (I want to be able to use banking app), I ...
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Google Nexus 7 II gen 2013 always horizontal display after root

my auto rotation in my nexus not working. Its possible to do default always horizontal screen after on/off device? I am newbie, maybe it is possible after unlock bootloader and root. Thanks for help.
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164 views

No slot (not A or B) selected but can get to bootloader screen and use fastboot

long story short I messed up my phone trying to get TWRP/root/magisk on my razer 1 phone (I can provide gruesome details if requested). I can fastboot and get to the bootloader screen. I seem to be ...
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1answer
36 views

Installing lineageOS

I have a tab S2 stuck on 5.02 I wanted to upgrade the software to lineagOS There are lots of information out there but nothing that can help me. A few things first that I need to share. Im usung a ...
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1answer
212 views

SafetyNet vs MagiskHide: what's the status now in mid 2020?

As widely reported on different sites, and also discussed on this site (here and here), earlier this year, Google made changes to SafetyNet so that it could detect bootloader/verified boot status even ...
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26 views

Black screen on android and broken power button

I have a redmi Note 4 which I've been using for quite a while. Its power button is broken so I would always just use adb to turn it on (fastboot reboot, holding down the volume button down) Now I am ...
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28 views

Relocked bootloader

I had unlocked bootloader on Moto g5s, and then relocked it again with fastboot oem lock, now it shows warning "Your device has loaded a different operating system" and when turned on, asks a ...
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12 views

How to relock bootloader via Linux machine?

I've been using my second hand Mi Mix 2s since this February and I've enjoyed it quite a lot. But after the purchase I've found that the previous user unlocked the bootloader and didn't change ...
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17 views

Load kernel from usb pen-drive in android

Presently my board is loading kernel from eMMC. I am trying to understand to load kernel from USB pen-drive in android device(AOSP). Stopped in u-boot , USB driver is up. I could not able to find ...
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1answer
64 views

Is it Possible to Create an Operating System for Android Devices?

Is it possible to run an operating system other than Android on Android devices? I know that the bootloader is hard-coded into the firmware and even if you tried you can't change what it does but what ...
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64 views

If I unlock the FRP on my Samsung S7, can I root my phone?

I'm having a lot of trouble to unlock the bootloader, but managed to unlock the FRP. Can I root the phone? Also, while on download mode, is it required to use a USB original cable? My download mode ...
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150 views

Redmi Note 7 isn't showing up in fastboot (Linux/Windows)

So I am trying to unlock the bootloader on my Xiaomi Redmi Note 7 and therefore I need to have access to adb and fastboot. I'm very frustrated because I couldn't find a solution within the last 3 ...
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35 views

Motorola Moto G6 Play not displaying any wifi or cell phone info

I have a Moto G6 play phone and I decided I wanted to install a custom ROM but halfway through I left and the phone updated by itself to android 9. There were no issues with the bootloader being ...
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71 views

Change Android Bootloader Splash Screen Image

How can I change the bootloader splash image that shows up as soon as the system is powered on? Note that I am not talking about the logo which is shown after the kernel has loaded (IE: after 'init'). ...
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52 views

How to recover deleted notes from Android device - Huawei P8 Lite?

I'm very stuck in solving this problem (from more that one year!). I started accidentally the hard reset of my Huawei P8 lite. Luckily I've saved all my photos and document on my SD. The problem is ...
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1answer
118 views

Xiaomi Mi5 bypass Mi Account

I got an old Xiaomi Mi5 from a friend that has a Mi Account lock. He forgot his password so I am not able to use it because the phone is bound to his account. Is there any chance for me to flash a ...
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1answer
637 views

Bootloop issue and can't go to recovery mode

I am using Asus Zenfone 3 ZE552KL, it got hang and then i tried to restart the phone but it get stucked in, Also I can't get in to recovery using standard method. Generally I keep USB debugging mode ...
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87 views

How to check if boot loader is locked on a Samsung tablet

I'm trying to figure out if my Samsung Galaxy Tab E's boot loader is unlocked. I tried a lot of online tutorials on how to do this, including this Android Enthusiasts question: How to check if your ...
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29 views

instal lineageOS on att galaxy S5

Hie, french living in france, i'd like to install lineage os on ATT galaxy S5, in order to root de device, I' installed,"combination ATT FA44, then I install Towelroot, SuperSU, Flashfire, then I ...
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1answer
2k views

My phone Oppo A5 2020 don't have fastboot mode. How to unoock bootloader. I have to root my phone. Can I root my phone without unlocking bootloader?

Oppo A5 2020 Model No is CPH1933 Android Version is 9.0 Pie Colour Os 6 There is no fastboot hut I got recovery mode only. I have to root my phone. Can I root without unlocking bootloader? ...
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1answer
885 views

how to re-install TWRP from Linux?

Android version: 4.4.3 HTC Sense version: 6.0 software number: 2.23.661.2 HTC SDK API level: 6.25 kernel version: 3.4.0-g52343b3 and @ABM105 #1 ...
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42 views

is it possible to delete a file from system folder without being root?

I found this file: /system/recovery-from-boot.p and I've read this is preventing me from entering in the recovery mode, but as I'm not root, I can't find a way to delete it or rename it...any ...
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35 views

After pressing Android (Samsung Tab A SM-T580) power up button is it possible to boot to certain user?

I have since created a second account on my android tablet for my 9 year old niece which she will be using most of the time however if it has been powered off it initially boots back to my accout and ...
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1answer
103 views

How to patch and sign android bootloader image to enable “volume_up” button?

Had trouble with it for a long time because manufacturer disabled the button to unlock the rooting functionality.
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77 views

Is there any way to recover from an over-written android system recovery, or what else might cause a Pixel XL not to enter fastboot from recovery?

This is an attempt to sideload an update to a Google Pixel XL stuck in a boot loop. Following this answer from the official Google forums, I tried this procedure as linked in the chosen answer. ...
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15 views

Can you install Huawei Honor 7 TWRP un Honor 7s

I can't find anything online specifically titled for the 7s, if you just provide a file that's specifically for the 7s too, tha'd be fine as well. FYI not native speaking, minimal experience with ...
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Phone (Nexus Zenfone 5 !!MODEL ZE620KL!!) only boots into TWRP

So I unlocked my bootloader and flashed twrp, but my data was auto-encrypted so i had to perform a wipe from inside twrp. I did this and now everytime i start my phone it boots into twrp. I tried ...
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53 views

Mounting bootloader mtdblock backup

I did a backup of android bootloader mtdblock using dd but having trouble to mount it https://transfer.sh/yAxnI/bootloader.img. $ file bootloader.img bootloader.img: DOS/MBR boot sector; partition 1 :...
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Cannot unlock Motorola C following the instructions from Motorola

I have: Created an account with Motorola Enabled developer mode Enabled "OEM unlocking" Enabled USB debugging Disabled the lock-screen PIN I then connected the device to my PC with a USB cable and ...
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819 views

ADB Root Grant Root Permission to App or Package

I am having a little trouble with my Development Board it is Orange Pi 4B, running Android 8.1 Currently I have access to ADB root and also can modify the system folder or even place files inside ...
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249 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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2k 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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225 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
2k 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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1answer
2k 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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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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