Questions tagged [bootloader]

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

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25 views

How can I relock my Xiaomi bootloader without bricking the phone?

I unlocked the bootloader on my Xiaomi Mi A1, and it boots fine. However, after I relocked it (using the top answer here) and rebooted, the phone flashed the white Android loading screen then went ...
2
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1answer
97 views

How to achieve factory-reset or bootloader mode for Flywheel (Glorystar Nebula rf3288) tablet without buttons?

I've gotten stuck trying to upgrade a Glorystar Nebula 15 kiosk Android tablet (as customized for the orphaned Flywheel spin-bikes) to a vendor-provided single-file Android 7.1 firmware image (7....
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27 views

How to delete the Multiuser mode in my mobile?

I would like to remove(delete) the Multiuser mode in Realme XT. I want my phone to be simple. I have unlocked bootloader and rooted my phone and removed all useless bloatwares. Can someone please give ...
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1answer
50 views

Is it possible to update from Android 4.2 to 4.4 without disturbing the bootloader?

I have, for example, downloaded an update from android 4.1 to 4.2. All it consisted of was 10 new system apps, 5 libraries, 3 fonts, and a new bootanimation. What I would like to know is if an update ...
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0answers
157 views

Bootloader wont unlock on Google Pixel 2 (G011A)

I'm trying to root my Google Pixel 2 but I can't get the bootloader unlocked. The phone is a renewed and unlocked international version, model number G011A. From the bootloader screen, and connected ...
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59 views

What can be done with a phone that has an encrypted bootloader

I am trying to get a rooted android phone set up for reverse engineering purposes. I tried to root two separate phones (SM-G925A and a Google Pixel 2) but they both turned out to have locked (meaning, ...
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0answers
44 views

How to debug the kernel if the device only boot to fastboot [closed]

I am tring to compile the kernel source provided by the manufacture of my phone(OPPO PCCM00 precisely). Since it's not "well-opensourced", I changed quite a lot to make sure the kernel would ...
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0answers
36 views

What is the format for an Android ROM?

I downloaded a ROM for a Xiaomi phone to see what's inside. It's a zip file, that has these inside: boot.img META-INF system.new.dat.br vendor.patch.dat ...
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0answers
121 views

Unlocking bootloader for vivo Y12

I have enabled oem unlock and usb debug from settings. I am using vivo fastboot tool. And after entering fastboot menu, I tried the code fastboot bbk unlock_vivo. C:\Users\dell\Desktop\...
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0answers
27 views

What creating bootloop when flashing TWRP? [duplicate]

I follow this XDA tutorial to flash TWRP and rooting Samsung Galaxy J250F. However, after flashing TWRP via Odin, the phone only boots into recovery, not system. Even factory reset or empty the misc ...
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0answers
52 views

Locking bootloader after vendor build change

So, I have a Mi 10 Lite with the MIUI 12 EEA, and it's not the stock ROM but the Vodafone build (QJIEUVF). As there's the new Android 11 update coming, I'd like to have that and not wait for Vodafone ...
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22 views

Help - MotoG8 stuck on bootloader screen after toddler messing around with phone

As above, my daughter was messing around with my wife's phone and now the phone is stuck on this screen: Bottom 3 lines read: Power low oem_locked Connect usb data cable I've tried both holding ...
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1answer
61 views

Boot loop after messing with the smallest width option in developer options. (Redmi 5 plus)

so I was bored and I decided to check some developer options to see what they can do... I found this option called 'smallest width', at first I set it from 392 to 100 and it automatically set itself ...
2
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0answers
621 views

Help me to Unlock Bootloader on this Chinese phone

I am trying to unlock the bootloader for my device (it's a cheap Chinese phone) and then root using Magisk. The first problem is that OEM Unlock option is not available in developer options, so I got ...
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0answers
16 views

why is my Samsung tablet listed as a modem?

Exactly what the title says. It happens when I boot to the bootloader, while my T295 is connected to my PC via USB cable. How do I fix it?
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0answers
44 views

PIN on lock screen not accepting touch input. Cannot switch on

PHONE / OS Asus Max Pro M1 6GB variant running android oreo (8.1.0) THE PROBLEM My phone after reboot is not accepting touch input at PIN lock screen. Now, I cannot switch it on. A PREVIOUS PROBLEM ...
2
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1answer
542 views

Device says bootloader unlocked but OEM unlock option can enabled and disabled?

I have a Redmi Note 3 (INDIAN VARIANT Kenzo/Snapdragon variant running on Marshmellow 6.0.1 with MIUI Global 10.2) on which I performed an bootloader unlocking procedure via the tool XiaoMiTool V2 ...
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0answers
21 views

Stuck in Bootloader

I have a rooted Pixel 2 XL that I was upgrading the OS on and when I attempted to do a sideload for TWRP, it got all messed up. Now it won't go past the bootloader and keeps randomly rebooting while ...
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0answers
100 views

Impossible to hack (Android 4.0.3) tablet? Acer Icona A500

I have an Acer Iconia A500 here that is supposed to be hackable. But I tried and tried. But nothing made the job. I tried using ADB and Fastboot, but it said to me that it can't run the command ...
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569 views

Help with Nexus 6P bootloop: Couldn't parse partition size '0x' when trying to flash new image

I need help with my Nexus 6P. Because of a bootloop, I was trying to flash a new boot image. I went to the Google download page for factory images and tried using the "flash-all.bat" file. I ...
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0answers
26 views

“failed to find cpu0 device node” error when installing android on vm

I am installing androidx86 on a virtual machine, but when ever I try to install bootloader grub, this happens: and it does nothing except blink the cursor. I have done everything people say to do, but ...
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1answer
124 views

Do I need to root my Pixel 3 phone in order to install GrapheneOS?

I am interested in stalling GrapheneOS custom ROM on a Pixel 3 phone. Does this require that I root the phone?
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1answer
55 views

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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0answers
138 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 ...
2
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0answers
264 views

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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0answers
194 views

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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0answers
117 views

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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0answers
118 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 ...
2
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0answers
80 views

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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0answers
123 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 ...
0
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1answer
32 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 ...
1
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1answer
143 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 ...
1
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0answers
220 views

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 ...
0
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1answer
222 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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0answers
12 views

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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0answers
283 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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0answers
23 views

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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0answers
1k 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 ...
1
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1answer
42 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 ...
3
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1answer
659 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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0answers
30 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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0answers
33 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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0answers
40 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 ...
0
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0answers
25 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 ...
1
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1answer
84 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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0answers
202 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 ...
1
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0answers
568 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 ...
0
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0answers
40 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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0answers
405 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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0answers
99 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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