Questions tagged [boot]

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

276 questions with no upvoted or accepted answers
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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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77 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 ...
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296 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....
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31 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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20 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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28 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 ...
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40 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 ...
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49 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 ...
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1answer
22 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.
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38 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 ...
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1answer
95 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. ...
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2answers
1k 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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957 views

My Samsung Galaxy S8 has crashed and will not go through the forced restart procedure

My Samsung Galaxy S8 has not suffered any water or impact damage. It just stopped working all on it's own. I have tried to go through the forced restart/reboot procedure - ie - holding down the power ...
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1answer
44 views

Power on when charging but only when battery level is greater than 20%

I have recently tried to fit a tablet into my car and I came across a problem with waking up the device without using the power button. My solution is to boot the device whenever it is charging, but ...
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1answer
119 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, ...
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1answer
911 views

Can't Flash Google Factory Image - No Boot Partition

I seem to have bricked my phone but thankfully the bootloader is unlocked so I'm sure there is a way to fix it. I am having a hell of a time though, I think I need to re-create the boot partition ...
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1answer
47 views

Prevent homescreen/desktop from showing before my start-up app?

I have this bootup app that listens to the system boot up event and will launch on system start up (pardon the verbosity). Problem is, the system will stubbornly show the homescreen (or a static ...
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1answer
883 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
286 views

OnePlus 5 Black Screen after Pie

My OnePlus 5 after the Pie OTA update wont show the screen. after rebooting, it only shows the 'android' logo and then the screen goes completely blank(black). I can sense that the phone is turning on ...
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395 views

Can't unlock my phones bootloader

I'm using a local branded chinese phone. And my phones comes with locked bootloader. As it is a local branded phone, manufacture doesn't provide a official way to unlock it! I've tried many way I ...
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115 views

Google Nexus 7 (2013 Wi-Fi) Boot freeze, no recovery options working

I bought a Google Nexus 7 2013 edition, Wi-Fi only, from a yard sale. I have no clue what the previous owner did or tried but I cannot get it to boot. I'm not by any means an Android expert so if it ...
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40 views

My phone is stuck in a loop

My phone is a Samsung Galaxy Young GT S6312. It does not boot up at all. I have made a video of the loop as shown here - https://drive.google.com/file/d/1t38NYXvawmxSiIK9gqRTLINoIvG158Vi6w/view?usp=...
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1answer
288 views

Asus Zenfone 3 Zoom broken power/volume key - How to boot

I got big problem with my phone (ASUS Zenfone 3 Zoom) I broke the plug that connect the power/ volume cable so I am not able either turn on the phone or turn to safe mode. Also the USB debugging ...
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1answer
25 views

My Samsung tablel 1 is not restarting?

It stop working in process of restarting where android symbol is coming. So what should I have to do for resolve this issue?
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1answer
510 views

How to mount userdata_b in stot_a in A/B partition device?

I have a Tissot (mi a1) with TWRP dual booted by separating vendor_a, vendor_b, userdata_a, userdata_b. It is dual booted by cosmicdan's twrp with Resurrection remix ( slot_a) official and Dotos ...
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2k 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
27 views

How to make a backup from internal storage of my Galaxy S3 Neo while it stucks on Samsung logo screen?

My Galaxy S3 Neo has stopped working without any clear reason! I woke up and looked at my phone screen. It was showing the logo of Samsung. Then I turned it off by removing the battery. Since then I ...
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1answer
177 views

Custom Boot animation slows, freezes and crashes phone

I've created a custom boot animation: Create animation with Blender, render all the frames 1080 x 1920, PNG. Convert them to JPG. Store frame 0 to 123 to folder part0, store frame 124 to folder part1....
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415 views

New pixel 2- turning on shows battery and then horizontal purple line

I just bought a new Pixel 2. I opened the box, turned it on, and it showed a white battery with the charge symbol, and then that disappeared, and 2 small colinear horizontal purple lines briefly flash ...
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1answer
125 views

Boot LG G3 hard drive from PC

My father's LG G3 has stopped working. after logo screen it just shuts down. Is there a way to boot the phone as only a hard drive from a PC ? He has important notes on the phone that he needs to ...
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3answers
267 views

Phone softbricked after updating TWRP

My Yu Yureka is stuck at boot logo after I updated to TWRP 3.2.0.0. It does not go into recovery or download mode. I tried connecting it to PC and that too isn't working. How do I flash a working ...
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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
322 views

How to fix infinite bootloop problem in rooted karbonn Sparkle V

I have Karbonn Sparkle V and it has marshmallow before I root it. when I root my phone using Android One toolkit, its restart my phone after showing message rooting completed. But when it restarts ...
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1answer
330 views

Casper Via V6X Bricked. Can't Boot Into Recovery Mode

I've an Android device, Casper Via V6X. The device is not booting. I get the vibration and see the logo of the device but then nothing happens. When the device is closed and plugged in, it shows that ...
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805 views

Enable startup pin/password security without lock screen pin/password?

It is my intention to disable the pin/password for the lock screen, while still having the startup pin/password security. As I understand it, the options are to set a pin/password for lock screen ...
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1answer
39 views

Popup at boot, warning about unspecified “problem”

A few days ago my device (oneplus one with cyanogen) started showing this popup at boot, is there a way to diagnose this unspecified "problem"?
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215 views

Samsung logo has gone and was replaced by “Welcome” message

Yesterday my phone's Samsung logo has gone and was replaced by "WELCOME" message each time I've booted my phone. I don't know why it happened. Also the Samsung shutdown logo was replaced by "BYEBYE" ...
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1answer
366 views

How can I stop my Nexus 5X getting stuck in the loading screen?

My phone is stuck on the dots loading screen and won't load. It is rooted and it is a Nexus 5X. (No it is not the bootlooping issue). I cannot boot into recovery because the phone will not fully turn ...
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2answers
190 views

Rooting introduced adware; how to get rid of that (if needed including unroot)?

I have Lenovo Android tablet and I rooted using Kingo root. After rooting my device I started getting unwanted ads. So I unrooted the device using some Google references. But still I'm getting the ...
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274 views

How to fix infinite bootloop problem in Sparkle V. Please help

I have a sparkle v which is unrooted and also I don't have any software like cwm. My phone is stuck in an infinite bootloop. I tried removing the battery, going to recovery mode and factory resetting ...
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54 views

Buggy android does not turn on

I got a Yu Yuphoria 5010. I had custom installed Marshmallow CyanogenMod a few months back. Recently, the settings would not open. Instead it started showing the message: Unfortunately, Settings ...
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1answer
142 views

Galaxy tab 2 10.1 (GT-P5113) stuck on samsung starting screen after update

got update screen & clicked on it to update. When it was done it rebooted but is stuck on start up screen that says Samsung
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417 views

Flashing Lineage OS 14.1 Nexus 5 hammerhead

I am flashing my Lineage OS 14.1 on my Nexus 5 (hammerhead). It went without error, and I am now booting. However, the curved line with a circle cycling from right to left has been looping for >10 ...
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2k views

How to know where is the boot.img partition

I would like to modify my init.rc file for get init.d support trough the the boot.img file. As I know is the touchy action I've got several procedure but anyone referenced with I can note on my ...
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1answer
68 views

Galaxy S4 Not booting up

My phone (Galaxy S4 GT 19505) suddenly shut off a few days ago without me noticing it. I tried to turn it on but it wouldn't respond to the power button. However inserting the battery in would trigger ...
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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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275 views

Android tablet bootup very slow

Earlier today, I was using my tablet. It ran out of battery so I charged it. Then my tablet got stuck at the logo screen. I booted into recovery and cleared the /cache partition. Finally, I realized ...
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1k views

Why can't I fastboot flash TWRP?

I have adb and fastboot installed, but when I got into fastmode on my Zenfone 2 Laser it won't list the device anymore. I am using Ubuntu and the adb/fastboot seem to work just fine in the terminal. ...
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2answers
94 views

My device is soft-bricked after some system errors

Welcome! Edit: the phone is => Prestigio Multiphone 5451 DUO, android version is 4.2.2 In the past days, I decided to download the larger Messenger app, and removed previously installed "lite" ...
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1answer
580 views

Samsung GT-I9192 No Boot loop and can't enter recovery mode

No Boot loop and can't enter recovery mode I tried to boot into recovery mode, the phone vibrates then does nothing. If I release the buttons it simply goes into charging mode. Also tried flash ...