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Questions tagged [bootloader]

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

7
votes
0answers
20k views

Device boots normally, but cannot enter recovery or fastboot

I have secondhand Vodafone Smart Tab 4G. It seems to me that previous owner messed something up. The device boots normally but I cannot enter either bootloader, fastboot, or recovery. I have tried HW ...
5
votes
0answers
4k views

Adb commands from Termux

Is it possible to run adb and fastboot commands using Termux terminal emulator? I am wanting to run commands from one Huawei T3 7 to another using usb/otg cable. Need to unlock bootloader but have no ...
3
votes
0answers
1k views

How to change the boot logo, Not the bootanimation 4.2.2

Im trying to find out if I can change the boot logo, the one that shows up right before the bootanimation. Currently it show's me a linux logo. I am looking to either completely remove it or change ...
3
votes
0answers
467 views

Nexus 6 no longer turns on, now that I have flashed a Marshmallow ROM + bootloader

I have a Google Nexus 6 (Telus/AT&T) and I had been successfully running the Lollipop version of Chroma for months now. Yesterday I flashed Chroma Marshmallow ROM, and the recommended Google ...
3
votes
0answers
536 views

How does encrypting a bootloader prevent it from being unlocked

As I'm waiting patiently (sigh) for the at&t note 4 root, I have been trying to understand the process of rooting. This website does a good job of describing what a locked/unlocked bootloader is, ...
3
votes
0answers
6k views

fastboot oem unlock: hangs with `…'

First of all, I am a newbie to Android. I am using Ubuntu Gnome 14.10 to run all the commads. I am trying to unlock the bootloader of my Lenovo A536 (stock Android 4.4.2 aka KitKat). Here is what I ...
3
votes
0answers
97 views

Is there a way to tell if a boot loader can be unlocked before purchase?

For example are boot loaders unlockable only if the phone is branded and comes with a contract? If I bought a phone of Amazon.com would I likely be able to unlock the boot loader or is it really just ...
2
votes
0answers
29 views

is it possable to install a linux distro ie:- nethunter on a android device

I have been trying to work out how to use my old Android tablet as a stand alone Linux tool for pen-testing and network monitoring and logging. I have it boot straight into the OS without having to ...
2
votes
0answers
1k views

(SOLVED) How (methods) to unlock Bootloader on own Xiaomi Mi5 MIUI8 (Data Recovery context)

UPDATE: 2018/06/27, bootloader implies wipe and it is a dead end for Data Recovery, mount as USB Mass Storage implies root to change settings, and for Mi5 or MIUI 8 this implies flashing ROM (dead end ...
2
votes
0answers
2k views

[Nokia 3]adb reboot bootloader failed

I have Nokia 3 Android 7.1.1 connected to PC Windows 8. Problem is: C:\>adb reboot bootloader reboot failed: -1 Reason to do it is to flash/root in future. Other commands ok: C:\>adb devices ...
2
votes
0answers
445 views

su fails: “wget: bad address 'static.zhiqupk.com'” and unable to unlock bootloader

A friend of mine bought a used Samsung Galaxy S6 or at least we thought so, but it looks that it might be a chinese phone. After wiping all data/cache, the phone still had a lot porn/advertisement ...
2
votes
0answers
995 views

How to recover Nexus 5 data from memory chip

Edit 2: My Nexus 5 doesn't boot up the OS or the Recovery, but it boots the Bootloader. The service people speculate that the power IC isn't able to supply enough power for the first two but it's ...
2
votes
0answers
665 views

White screen while charging when phone is off

I'm using my phone (Lenovo A660) since more than two years. Usually, I do not boot the phone to often (approximately once a month). However, I recently realized when I turned of the phone, that the ...
2
votes
0answers
270 views

Nexus 7 2013 crashes when in boot loader. How do I flash a new image to it?

I have a Nexus 7 2013 which I'm trying to flash the Android Lollipop preview image to. It's currently running the last Android L preview image. Whenever I boot the device to the bootloader screen ...
2
votes
0answers
820 views

How can I see bootloader stdout debugging messages?

I'm trying to understand the mechanisms of the Android bootloader. The source code for this is here: https://code.google.com/p/android-source-browsing/source/browse/recovery.cpp?repo=platform--...
2
votes
0answers
2k views

Installing Android using only fastboot on HTC Vision

I lost my system somehow. My phone turned off and reboots during starting up. I'm only able to go to hboot (fastboot/recovery etc.) on my phone, and I'm unable to run Android system. I have tried ...
1
vote
0answers
71 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 ...
1
vote
0answers
37 views

Seemingly dead Sony Z5 Compact gets detected as QHSUSB Bulk

My 2 year old Z5c (E5823, non rooted, official Sony Nougat update) died while updating some app, and doesn’t show any signs of life since then. Connecting the charger doesn’t turn on LED indicator, ...
1
vote
0answers
31 views

unable to flash stock rom in swipe elite plus

I'm trying to flash MIUI 8 on my Swipe Elite Plus. It fails and the is device not booting; it's stuck into the Videocon boot logo. After that I successfully flashed the Swipe Elite Plus stock ROM, in ...
1
vote
0answers
122 views

Galaxy S4 SCH-I545 stuck in Start Up Failed

After using the Official TWRP app to flash TWRP recovery to my Samsung Galaxy S4, I am stuck on a screen that says "Start-Up Failed" and "Secure Fail: Kernel." I think it is because I flashed it to ...
1
vote
0answers
2k views

Android x86 not change resolution on Virtualbox and VMware Workstation

I installed android-x86_64-6.0-r3.iso and after launch I see: I tried to change resolution as described here: Android x86 Marshmallow not booting on Virtualbox and VMware Workstation https://www....
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vote
0answers
1k views

How to get Huawei Product ID without stock ROM?

I have Lineage as opposed to the stock ROM, so putting: *#*#1357946#*#* does not work for me. Recommended on alternate posts were downloading a program called "Huawei Product ID Generator", but ...
1
vote
0answers
133 views

Unlock bootloader on Dell Venue 10 5050

I have a bricked Dell tablet that doesn't boot and also a has locked bootloader (Secure Boot: Enable). I've made a full partition dd backup, but now I cannot flash it via fastboot supposedly because ...
1
vote
0answers
40 views

Help unbricking my nexus 5

let me tell a story first, i want to flash new boot.img for my nexus 5, but i'm also curious what happen if i do re-partition. I delete boot partition ./parted /dev/block/mmcblk0 rm 19 (my boot is 19) ...
1
vote
0answers
274 views

Phone's power and volume buttons will not work in bootloader

I have recently decided to unlock the bootloader of my BLU Studio X8 HD. I have first installed the ADB drivers and afterwards I have used the command adb reboot bootloader to boot the device into the ...
1
vote
0answers
1k views

Unlocking bootloader LG G6 Verizon

I'm not able to get fastboot to respond to any commands There is no OEM Unlock Option visible in the Developer Options Screen LG's tool does not support the LG G6 Are there other options I should be ...
1
vote
0answers
525 views

Android boot/radio/vendor images: What needs to be matching?

Today i got a replacement phone for my nexus 5x and i wanted to use a TWRP (disk image) backup from the old one. It's running now after quite a bit of experimenting to find matching images, including ...
1
vote
0answers
122 views

Bootloader questions

I'm trying to learn about the android's bootloader. However, I got into some questions : There are the SECURE BOOT and LOCK STATE. The LOCK STATE (if enabled) makes all partitions to read-only mode (...
1
vote
0answers
1k views

Unlock Moto E OEM Bootloader without the Passcode from Motorola

I need to unlock my Moto E phone(2nd Gen). To do this, I want to unlock the bootloader first. I got the 'get_unlock_data' and sent it to Motorola, But I did not get the passcode from them :( Could ...
1
vote
0answers
507 views

Is my Galaxy 10.1 Tablet dead forever, or can I bring it back to life?

I have a Samsung Galaxy Tab 10.1, 16GB, wifi only version, GT-7510. Bought in the US. It was running a rooted version of Lollipop for a long time with no problems, and then in the last couple weeks, ...
1
vote
0answers
58 views

ZE551ML ASUS ZF2, Bootloader failure

I tried to do a procedure described in this video https://www.youtube.com/watch?v=BJPEc1NG_k8, about installing Lineage OS on a zenfone 2 ze551ml. In a specific part of the video, is required to ...
1
vote
0answers
377 views

Where should I place iptables update on Android at boot time?

I need to write specific values in the routing system using the iptables command for Android. The overall idea is that the user can navigate only using the provided DNS configuration. I've tried to ...
1
vote
0answers
487 views

Unlocking oem Elephone p9000

I'm trying to flash TWRP on my elephone P9000, but when I use SP flash tools it doesn't download anything to my device, so I decided to try adb. To get access to write a new recovery, I need to ...
1
vote
0answers
63k views

What does rebooting bootloader do?

I recently got a OnePlus 3T, then I updated it and now it's bricked. I cannot access recovery mode. I figured out how to get to a screen where I can reboot the bootloader. What does it do? Will it fix ...
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vote
0answers
1k views

Replacing Boot loader

i want to replace my nexus 6 stock boot loader with the one i customized based on little kernel. but as long as i know there is a authentication chain from the very start of booting process in boot ...
1
vote
0answers
52 views

Android revolution HD boots to bootloader

I just installed Android Revolution HD rom on my HTC One M9, everything went fine but it won't boot, every time I boot the phone it opens the bootloader screen. I installed the rom using TWRP
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0answers
1k views

Can I replace my device's bootloader to grub?

Basically the title contains everything. I have an old smartphone lying around and I would like to change its bootloader. How can I know in which partition does it lie? How can I compile grub on my ...
1
vote
0answers
2k views

Nexus 9, no recovery, no USB debugging, OEM locked in Settings

I've got a pretty complex problem. At the moment: Nexus 9 WiFi Tablet, USB Debugging not enabled Normal Startup: Android laying on the floor Startup with Power+Volume Down: Fastboot Bootloader ...
1
vote
0answers
962 views

Fastboot “waiting for device”

I have an galaxy s4 i33 that I need to have upgraded for work (or buy a new phone.) On both windows and Linux I can type "adb reboot bootloader" to open the bootloader. However, in windows: -Odin ...
1
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0answers
57 views

SDHC memory card only readable while booting my phone

I have a 32GB SDHC memory card. It cannot be mounted normally, it says Blank SD card , SD card is blank or has unsupported file system. I have tried chkdsk on it with windows 10 which results in "RAW ...
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0answers
324 views

Xperia Z1 camera problem

I need someone who knows about flashing, bootloader unlocking and related topics for this problem: My Xperia Z1 doesn't take photos when the app tries to focus. With no focus enabled it goes ...
1
vote
0answers
187 views

Can't recover Nexus 5 from bootloop

Hey I am trying to get my Nexus 5 working again. I really need someone to help me troubleshoot this. One day I noticed my phone was off after about half an hour from being fully charged. It wouldn't ...
1
vote
0answers
189 views

Bricked Nexus 7, USB Not being recognised at all

My Nexus 7 all of a sudden stopped sending data through usb OTG and i tried to erase cache through TRWP but ended up deleting the OS. Now I am stuck with a device with no OS. I cannot mount the USB ...
1
vote
0answers
258 views

Keyboard settings crashes at post-reset setup, can't access phone

I rooted my device and everything went fine (Kingo Root automatic app). Some time after making my first steps into the rooted device, I tried a "Reboot menu" widget, a window with options popped out ...
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0answers
615 views

Unable to flash boot.img in htc one v

I'm trying to install a new rom in my HTC one V. I could successfully do everything with my one V until I upgraded my windows 7 to windows 10. I already have CWM recovery. USB debugging is ON . I try ...
1
vote
0answers
1k views

Moto G 2014 XT1068 is bricked. Keeps looping and won't boot. What to do?

Ok so here's a couple things about my phone: Its bootloader is unlocked, it is rooted, and it has a custom recovery (TWRP). The problem is, my phone got stuck in the "WARNING, BOOTLOADER IS UNLOCKED" ...
1
vote
0answers
367 views

How can I unlock bootloader of LG Vortex (VS660)

I'm trying to flash CyanogenMod to an old LG Vortex. I believe the first step is to unlock the bootloader. (I have successfully done this to a Nexus 7). I have adb and fastboot installed on LM17. Most ...
1
vote
0answers
168 views

Bootloader frozen on Nexus 10

My Nexus 10s bootloader is stuck, it keeps saying "Downloading... Do not turn off target!!" and fastboot commands have no affect on it. I also can't use the volume rocker to boot into recovery or ...
1
vote
0answers
461 views

Access Bootloader on VSD241

I'm trying to access the Bootloader on a Viewsonic VSD241, but the menu that comes up tells me to hit the "volume up" button to select Bootloader from the menu. There are no hard volume control ...
1
vote
0answers
2k views

Unlock bootloader using Ubuntu/Linux

I'm trying to root the device name: Overmax SteelCore 10+ to install ubuntu touch. When i use $ adb devices sometimes i get: 0123456789ABCDEF DEVICE and when i type to reboot bootloader (...