Questions tagged [boot]

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

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2answers
810 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
8 views

Add a custom script in init.rc in a Custom ROM

I am trying to add a script in a custom ROM on a Galaxy Note 4 I've done the unpack and repack process on boot.img by modifying the init.rc file. But every time I try to reboot it stops at the home ...
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1answer
2k views

Prestigio MultiPhone 5430 and nonexistant boot/recovery partitions

I've got the Prestigio MultiPhone 5430. It's built on Intel Medfield platform. The phone isn't popular as it was released about 6-7 months ago. Because (as far as I know) nobody before me has tried ...
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0answers
29 views

Can I give permanent volume increase permission to my phone?

I use Android 7.0. My phone asks a permission about increasing volume level after every boot if I want to increase the volume level. Is doing this mandatory after every boot or can I disable/by-pass ...
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0answers
26 views

How to enter recovery mode with an OTG keyboard?

I would like to know how to boot my Mediatek tablet into recovery mode by using a physical keyboard (OTG) because my volume key doesn't work. And I can't boot to the OS to enable the USB debugging.
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2answers
3k views

My phone keeps restarting after factory reset

Recently my Xperia L running Android 4.2.2 started restarting every 30 seconds following a factory reset. I have rooted my phone using the iroot app and I reset it. I still have the kinguser app ...
2
votes
1answer
68 views

ST21i Removed boot flag

I was trying to boot from the sdcard, as I thought it was a boot order issue, I disabled the boot flag on the boot partition. Now my phone will not turn on, or enter bootloader. I have found various ...
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0answers
20 views

LG G3 D855 with lineageos: hangs while booting, recovery partition damaged, no connection from adb

I accidently damaged the recovery partition on a LG G3 D855 with Lineage15.1 OS was still booting ok, but I wasn't able to get TWRP on recovery again, as the device was not routed. I used a one-click-...
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0answers
45 views

Encryption failed after turning my android phone on

when i turn on my phone it shows "Encryption failed" and "Unable to start up your device. the encryption process was interrupted. you need to reset your device to factory default setting. this will ...
4
votes
2answers
8k views

How to fix Cyanogenmod 7 hanging on boot animation after NO firmware changes

I've been using my Google Nexus S with Cyanogenmod 7 for about a year now. Sometimes it rebooted out of the sudden or locked up but all in all worked well. Today I rebootet the phone und since then ...
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0answers
35 views

Unpacking and repacking boot.img changes it's file size

So I unpacked boot.img file using unpackbootimg in ubuntu. Then without changing the file I repacked it. But the filesize became smaller. From 36.7 MB to 17 MB. I tried to flash that image to my phone....
2
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1answer
61 views

SELinux always set to permissive, how to set enforcing permanently?

I flash a custom ROM to my HTC B2UL. The ROM, by default, has the SELinux policy set to Permissive instead of Enforcing. I can use adb shell setenforce 1 to make SElinux enforcing. But after reboot, ...
2
votes
1answer
53 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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2answers
3k views

Samsung Galaxy Tab 3 stuck at Samsung boot logo after rooting it with Kingo root app

I rooted my Samsung Galaxy Tab 3 via Laptop using Kingo root app. I did everything correct but my tablet won't turn on now. It is stuck on the logo screen. It won't load past the logo screen. I took ...
0
votes
1answer
49 views

Link between device state & user settable root of trust

I am (still) trying to understand exactly how verified boot works and I am wondering what happens when a user-settable root of trust is used by the device. As said here: If the device is LOCKED, ...
0
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1answer
7k views

Install android on non-booting XT1033 (Moto G 1st gen) - USB debugging not enabled

I have a Moto G (XT1033) running Android 5.0.2 that went out of charge one day. It then decided to boot into a black screen - i.e. I can see the Motorola splash screen (animation) but all I get after ...
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0answers
1k views

Android x86 won't boot with GRUB 2 - stuck at Detecting Android x86

I recently installed Android x86, using ~~99 GB free space on an old drive, partitioning it into /dev/sdb3. After reinstalling grub (accidentally selected "yes install grub" in the installation menu),...
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1answer
4k views

Moto G stuck on the screen “Warning bootloader unlocked”

I'm trying to solve a problem that is affecting a Moto G 2014 XT1069 device. What happened is that the device did shutdown, then when trying to power it up again, it stayed stuck on the Motorola logo ...
4
votes
1answer
3k views

How does one disable the media scanner? (obviously on a rooted device)

Running a rooted Galaxy S2 with DarkyROM2 2.3.5 & SuperCore kernel. I have a 32 GB microSD card in addition to the 16 GB internal storage, and it takes ages to scan both when the phone boots. At ...
1
vote
1answer
6k views

How to edit splash.img which displays the boot logo in Snapdragon chipset devices?

As far as I know, most devices powered by Snapdragon Chipsets stores the boot logo (splash screen that shows up when device is switched ON) in a partition named 'splash' which contains splash.img Is ...
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0answers
23 views

How to exit out from a stuck safe mode?

My Samsung Galaxy A3's power off button didn't work, so I held the Power off and Home key for 5 seconds which brought me to a custom OS warning. It showed that I could cancel and restart if I pressed ...
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0answers
9 views

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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0answers
23 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 ...
2
votes
3answers
445 views

If I flash a custom recovery img, will I be able to boot the normal old system?

Can I flash a custom recovery (say, the one from Replicant with heimdall flash --kernel path/to/recovery.img, or ClockWorkMod) and then be able to boot the old system? Without reinstalling the main ...
0
votes
1answer
942 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 ...
34
votes
8answers
144k views

ADB can discover devices but not fastboot

I've searched on the web about this problem and it's usually solved by installing the appropriate drivers. Problem is I'm on a Mac. When I plug in my device, it can be discovered when I run adb ...
3
votes
1answer
2k views

How to fix a phone stuck at firmware update screen?

My phone was dead so I plugged it in to charge. I attempted to turn it on and saw: Firmware Update Do not unplug the USB connection until the process is complete. This was all it showed and ...
0
votes
0answers
17 views

what does ddi stands for in android os?

What does ddi stand for in android OS? My phone g532f couldn't power on, but enter download mode just by using "jig USB" !!.. this message appears in download mode. ddi read failed (in rad color) ddi ...
18
votes
1answer
153k views

Open an app on startup/after booting

I need to force a selected application to start up each time my Android-based device is (re)started. Is there anything I can use (configuration setting, external application etc.) to accomplish this ...
0
votes
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?
1
vote
1answer
841 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 ...
1
vote
1answer
4k views

How to fix phone booting only into fastboot mode after flashing a custom ROM?

I have a Wileyfox Swift and I have tried to install lineageos 15.1 by following the tutorial that can be found on the lineageos website. I have successfully installed adb, twrp and used it to install ...
3
votes
2answers
1k 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 ...
0
votes
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:\...
0
votes
1answer
929 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 ...
0
votes
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. ...
2
votes
1answer
1k views

Is it possible to keep track when my Android phone is startup and when it is shutdown?

Where can I get the information about when and what time my Android phone is being shut down and also being start up. (shut down / start up - meaning that someone press the Power button to cause it to ...
0
votes
0answers
17 views

Reading phone partition and writing to SD Card

Guys i really need HELP Mine Docomo S7 from Japan aka SC-02H is bricked, so No Download - No Recovery - Not Turning ON I found another SC-02H working one from mine friend - I Read somewhere that i ...
2
votes
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 ...
0
votes
1answer
14 views

itel phone unable to switch on

I bought a new itel phone yesterday. I charged it a bit then added apps and photos and music. I played some music during the night. I tried rebooting does not go on, it vibrates but screen is blank.
1
vote
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 ...
0
votes
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 ...
2
votes
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 ...
2
votes
1answer
221 views

actual limitations of locked bootloader

I have read in many posts that a locked bootloader prevents from flashing custom ROMs, because it checks the digital signature of the ROM itself. I thought a "bootloader" was only responsible for ...
0
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0answers
22 views

Unable to have applications run on startup Android 7.0

I can't seem to get any applications to start at boot. I wanted sshd to run at startup so I installed "Termux", "Termux:Api" and "Termux:Boot" and followed the instructions and placed the startup ...
1
vote
1answer
9k views

My Samsung Galaxy S Duos GT-S7582 does not start

My phone GT-S7582 does not start when powered on it only displays Samsung GALAXY S DUOS GT-S7582 and also it does not enter in to the download mode.
1
vote
1answer
3k 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 ...
2
votes
1answer
3k 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,...
0
votes
1answer
18 views

Apps suddenly stopped starting automatically when my phone boots

I have two apps that I expect to start when I boot my phone: AccuBattery and Weatherbug. A few months ago though, Weatherbug stopped starting automatically, and AccuBattery stopped a couple days ago. ...
0
votes
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 ...