Questions tagged [boot]

Use this tag for issues with the "boot-process" of your Android device.

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Moto E 6th Gen want boot up

It say's boot image missing and want boot up or go into recovery mode i've tried using ADB but it say's device null not found. Please i need HELP can anyone help me
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1answer
1k views

Changing bootlogo Sony Xperia Z4 Tablet

I'm trying to change to splash-screen / boot logo of my Sony Xperia Z4 tablet (SGP771) I have already rooted my device. With the help of the bootimg.exe tool I unpacked the boot.img - exchanged the ...
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Recompile kernel: no errors but it doesn't work

I'm a beginner, and at the moment I'm trying just to repack original boot image. I've discovered that boot partition is on the "/dev/block/mmcblk0p7", so I pulled it with adb pull /dev/block/mmcblk0p7 ...
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2answers
1k views

How to modify environment variables like PATH at startup?

I'm trying to add /data/bin to variable PATH at startup in order to have it available for any other app. In Ubuntu I use the file /etc/environment, I cannot find anything similar in Android. I ...
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1answer
19 views

Android system cant start because of “No space left on device”?

I ran my app, which communicated with my server in every 5 minutes. 2 days later I can't turn on my tablet, because it stops at the boot image. I'm getting all kinds of error in logcat like this. My ...
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2answers
800 views

E: can't mount/cache/recovery/log on Android Lenovo a1000

I have a problem on starting my lenovo a1000 , so i decided to install firmware on it. I tried too much, but every time the phone fishing flashing , and 100% passed with spd factory flashing tool , ...
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2answers
2k views

Run a particular app on boot

I have a phone running Android 4.0 and I wish to know if it is possible to turn this phone into a dedicated calculator? When I say dedicated I mean - once the phone is turned on, it boots directly to ...
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1answer
1k views

Android TV autostart script

I want to run a script after booting from a Android TV box (Xiaomi Mi Box) I tried a lot but nothing works. Is there any option to 'activate' an init.d folder?
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1answer
1k views

C105i tablet won't start up

I have an off-the-shelf Chinese call-touch c105i android tablet with an all-winner a10 CPU. Out of nowhere, it crashed and won't start up. When I turn it on, it just gets stuck in the logo screen. ...
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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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z3 play not starting

I have a motorola z3 play used for about 12 months. It has worked fine and all of a sudden it crashed. It does not start on pressing power button. I am able to charge it and also take it to fastboot ...
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1answer
947 views

Samsung Galaxy 2 stuck at start up. Can I recovery the phone or at least the data?

My Samsung Galaxy 2 stuck every time when start up. It looks ok on the beginning, it shows "Samsung Galaxy S II ..." then change display to Vodafone logo then the shows word "samsung" and stuck here ...
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1answer
1k views

How do you extract the boot.img from a samsung g4?

I don't image the adb command is able to access that sector of the device but for the record, when I connect, I can see the device but C:\Users\Brad2\Downloads\adbUnzip2Cdrive\adb>adb kill-server C:\...
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2answers
8k views

How to fix device when stuck in firmware update with “Do not disconnect USB” message?

I have an LG Android phone. When I turned it off last night, it turned itself back on again with the firmware update showing "Do not disconnect USB". But when I received it from my contract holders, ...
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Can I root android by booting from an sdcard?

Digging for that, I found various resources on the net to boot Android from sdcards. Doing that would make possible many things what are generally unavailable in phones. For example, it would be ...
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1answer
26 views

Samsung J5 stuck in boot loop after factory reset

Phone was rooted and working fine I did a factory reset Now, it seems to just boot into the Samsung animating logo that does not go away... I'm able to boot into the recovery mode and view the logs. ...
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2answers
1k views

how to get my android to boot up and shutdown automatically

I want my android phone to boot up (I expect from a low energy state rather than off) automatically, run my app for a while, shutdown (ie return to low energy state) and repeat at intervals, say an ...
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2answers
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If Android is a Linux distribution can I run it natively on my computer?

Is it possible to run Android on PC? Is it?
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1answer
2k views

Phone on, No Display

So my aunt told me to fix her android phone and here's the problem. After the android logo and text splash screen during the boot up, the screen is all black but I can still open applications ( just ...
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1answer
1k views

Acer Iconia Tab 10(A3-A40) not booting

I deleted the rom and recovery(by mistake) from my tablet(Acer Iconia Tab 10) and at least it booted in a bootloop, now, after 4 hours, the display is not even turning on, I tried to recharge the ...
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0answers
23 views

Unlocked boot loader ADB issue

So I’m trying to downgrade my nexus 6P from Oreo 8.1 to 7.xx. I’ve unlocked the boot loader and can communicate with the device through Google’s adb fast boot command line which works fine (up to a ...
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1answer
3k views

How to hard brick an android phone (Galaxy Nexus)?

I'm trying to figure out whether or not I managed to brick my android phone, a Galaxy Nexus*. Using ClockworkMod Recovery, I pretty much erased everything I could find (/data, /cache, /factory, /...
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40 views

Android boot.img installing BusyBox with Dropbear

I have installed TWRP on my device, extracted boot.img. Initially I just wanted to build Dropbear for Android and make it run from boot.img. I don't need any app to have root access. What I would ...
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2answers
27k views

Using Android phone without battery

Some Android phones have removable batteries, and others are non-removable. It is the battery capacity that makes the device alive for hours. Also, the device can be used while charging. For an ...
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0answers
39 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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0answers
44 views

Unlock bootloader with PIN using ADB

My phone screen has shattered, and is not at all visible. I made the mistake of rebooting the phone via ADB, and now it is stuck at the boot lockscreen. I am interested in copying the files off the ...
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1answer
58 views

How to see the boot progress messages (akin to dmesg) when booting LineageOS?

After the last OTA update my phone (OnePlus 3) seems to be stuck for about half an hour on the boot animation. Since updates usually take ages to install, how do I know that the update process is ...
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64 views

Is it possible to boot a Android smartphone without battery with charging wire on?

Problem The title of this post seems a funny challenge. But frankly, there are a lot of worthy points involved in this question. If a Android phone support rapid charging. If its battery is removed, ...
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2answers
1k views

Can downgrading OS make Xperia Neo V, boot after a boot loop

My Neo V MT11i was upgraded to ICS a few days ago. Today when I turned on bluetooth, it started to reboot repeatedly. I tried to hard reset using sets of button as posted in some blogs but still I ...
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2answers
881 views

S3 mini won't boot up after flashing twrp custom recovery with Odin

After a successful root, I tried to install twrp custom recovery, so I downloaded the appropriate tar file and flashed it using Odin, but the device never entered recovery mode when I attempted to, it ...
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0answers
23 views

Samsung Tab A6 won't leave battery screen or turn on

I'm currently having issues turn my A6 on, in that it simply won't start up. I have tried: Holding the Power and Volume Down button, Holding the Power button for 30 secs, changing cables, changing ...
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0answers
12 views

Android device can't boot

I have this device Samsung A5 2016 which has not booted for a while, wanting to repair it, I went into recovery mode however no option seemed to work, recurring error which appeared: "can't find misc/"...
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3answers
127k views

Flash boot.img without using fastboot USB

So I've recently rooted my phone and tried a ROM or two. I find it really handy that you can use TWRP recovery to install another ROM from the SD card, you don't need to have it connected to a PC. ...
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1answer
1k views

Samsung S6 Active Will Not Boot, AP Rom Flash Succeeds (Bootloader Flash Fails - EDIT: BL Flash Works, Device Still Won't Boot)

(See Update Below) Hi all and thanks in advance for your help. I am having trouble with my S6 Active. It has been stuck in a boot loop for a week now. It was running stock beforehand. I flashed a ...
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55 views

Android Pie Remove Startup Sound

I want to remove startup sound from a samsung A10 and samsung A40 (both with android PIE on it). I could find an option to do that on other Android Version (Nougat for instance), but not on PIE. On ...
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1answer
5k views

Destroyed (boot/recovery).img after rebooting the device

I use Realme 3 pro device with SD710 running android 9.0 with ColorOs UI, and i'm trying to root my device with Magisk module. First i followed the instructions at link to unlock bootloader,then ...
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137 views

Unable to Unpack android 10 boot.img properly

Devices : sanders & rolex Unpacking/Repacking boot.img was fine upto android 9 on most roms. But, Unable to Unpack "boot.img" of android 10 roms, tried boot.img from Android 10 based Havoc, ...
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1answer
4k views

Booting android using 'fastboot boot'

With my android device attached over USB, I entered the following commands: adb pull /dev/block/by-name/boot ./boot.img adb reboot bootloader sudo fastboot boot ./boot.img and I received this output ...
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1answer
5k views

How to fix Galaxy S4 stuck at boot screen despite factory reset?

I am new to all of this, and I am having trouble with my Verizon Samsung Galaxy S4 SCH-I545. I am on a Mac, but can also run Windows 7 in VMware Fusion. A couple days ago, I successfully rooted my ...
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3answers
11k views

How to fix a ruined recovery mode of an Android device?

It seems like I ruined the recovery mode of my Android tablet. It's a HP Pro Slate 12 tablet with Android 5.1.1 on it. It's rooted. I wanted to install CWM Recovery to backup everything, but my device ...
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0answers
14 views

What config file specifies which services load on startup? [duplicate]

I'm using ADB and have full access to the filesystem. I run ps and see a process running called com.Something.Service. I can kill the process but it restarts most of the time. It's not a visible app,...
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1answer
4k views

How to turn off Nokia theme tune on startup?

My Nokia 6 always made the Nokia theme tune when it was turned on from being completely off. However, for a short period, I had another user account on my phone and it didn't make the noise every time,...
2
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1answer
1k views

Samsung A20 SM-A205W stuck on download mode

I have a Samsung Galaxy A20 and I was attempting to unlock the bootloader and also install TWRP. While the bootloader was unlocked successfully, while doing the TWRP part I had to use Odin and used an ...
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1answer
2k views

Lollipop - Apps not autostarting

I have Alcatel 5054D with Lollipop (5.1.1) on board. I noticed that some apps are not starting on boot or on events that are fired by the OS. For example, when my phone was not rooted I tried to ...
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4answers
2k views

S4 Wont turn on unless removing battery then turns off after 2 seconds

So, my Galaxy S4 turned off randomly today during charge. I attempted turning it back on via the power button but it would not respond. Then I tried taking out the battery and replacing it, the ...
2
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1answer
37k views

Android mx tv box stuck at mbox logo

My Android TV box always gets stuck at the Mbox, "make your life colorful" logo, but it never goes to home screen, and also when I put the TV box into recovery mode I can't select anything, it just ...
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1answer
823 views

System crashed and not rebooting on Xiaomi Redmi 5 Plus

I have a Xiaomi Redmi 5 Plus with MIUI 8. My system crashed today and then the phone tried to reboot but is stuck eternally in the boot screen with the Mi and Android logo. I only had 100 MB free ...
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1answer
3k views

Lenovo a390 hangs at the boot logo

My Lenovo a390 freezes when I open it. It stops on the Logo 'Lenovo: for those who do.' I removed the battery but it is still hanging on that part. What should I do?
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55 views

Are there (developer) tools to remove files from Android “Rom” cache, if the smartphone doesn't start properly?

(I have also asked on stackoverflow, as I assume the use of developer tools is neccessary, but I would be very glad to get any working help on here also. The Google Photo App filled up the 16 GByte "...
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1answer
2k views

Where is the battery animation called?

I have a tablet from China, it's a Q8H Allwinner. It is rooted, and I've browsed the internal storage for hours to find the battery animation, I found them at framework-res.apk... Now I want to find ...

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