A "bootloop" or "boot loop" is a problematic situation wherein a device can't fully boot up and starts over, in a loop. Make sure to read the information provided with the 'info' link before submitting your question, as it contains general help.

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Samsung Galaxy S3 not booting up, keeps restarting showing ”Samsung Galaxy S3 GT-i9300” black screen

My Samsung S3 is stuck! It keeps restarting! It doesn't reach the enter pincode, but keeps restarting showing the "Samsung Galaxy S3 i9300" screen. Then cycles starts again. Here are the things I'...
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2answers
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Samsung Galaxy S in boot loop after following cyanogen mod's full update guide

I have been following this guide to root my Samsung Galaxy S smartphone. I've followed it to the letter, but after I load the new kernel to the phone, the phone gets stuck in a boot loop. The phone ...
8
votes
3answers
5k views

Trying to flash a system.img I took with dd - failing

Long-time UNIX guy here, but relatively new to the world of Android. Read on. EPISODE 1: A New Backup (I hoped) I have recently purchased an Asus MemoPAD (ME103K) ; I then became root, and took a dd ...
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votes
5answers
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Nexus 5 Reboot loop

Today my Nexus 5 turned itself off, and then whenever I try to start it again, it loops rebooting - it shows the google logo, then starts the boot animation, then powers off and starts over. I've ...
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4answers
3k views

Android won't boot after unsuccesful wipe operation

I rooted my Asus Transformer Prime and tried to install a custom ROM but I managed to fail. I selected the option to wipe data from the table in the bootloader menu (accessed it via holding power ...
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votes
2answers
5k views

Nexus 7 is stuck in reboot loop after full discharge

I have a few day old Nexus 7 tablet, unrooted, bootloader still locked, and otherwise in factory condition. This morning, it ran its charge out. When I plugged in it, this happens: Google Logo ...
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6answers
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Nexus 10 stuck in bootloop after Lollipop flash no ADB and no Fastboot

So .... I flashed the mantaray-lrx21p image from Nexus Factory Images on my Nexus 10 (16GB Wifi) and it's stuck in a bootloop. No problem, I thought, I can get into fastboot and fix it, right? Maybe ...
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2answers
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Boot loop after updating to official Android 6.0 Marshmallow on my Nexus 5

Last day I got the notification to download and install official Android 6.0 Marshmallow in my Nexus 5, which is not rooted, was running Android 5.1.1 and no custom ROM. As I downloaded and installed ...
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2answers
32k views

How do I fix my boot-looping Samsung Galaxy Tab 10.1?

I have a Google IO Samsung Galaxy Tab that has decided it no longer wants to boot properly. It just constantly goes from the 'SAMSUNG' logo that flashes a couple of times to the stars and lines ...
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2answers
19k views

Samsung logo loop in galaxy y

Whenever I start my phone, the samsung logo animation goes in a loop forever; unless i take off the battery. This started happening after I simultaneously clicked the power button, menu button and ...
5
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1answer
181 views

Android Nexus 6 Bricked? TeamWin splash screen turns on and off

I think I've bricked my Nexus 6. Every time I turn it on, the teamwin (TWRP) splash screen keeps literally flashing on and off. I would be able to flash a stock system on but I can't due to the fact ...
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2answers
5k views

Phone restarting nonstop

My phone started rebooting all by itself all the time after I did 2 things with it. Installed Snapdragon BatteryGuru and put it on learning mode (for an estimated 3 days I guess) so that I could start ...
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4answers
49k views

Clearing Dalvik Cache without root?

I recently tried updating my Motorola Atrix 4g. It downloaded, and then it booted down to try to update. However, instead of updating, it ends up booting to a screen that just says Failed to boot 2 ...
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4answers
7k views

Moto E Not Starting Properly After Changing runtime to ART

I have recently bought a MOTO E and it's working cool. Then I have enabled Developer options and changed my runtime from Dalvik to ART. Afterwards I restarted my device. I got the message saying ...
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votes
1answer
1k views

Do you have to reformat an SD Card before you can copy its contents to your PC?

My phone has been stuck in a boot loop and I need to safely retrieve the contents via card-to-PC transfer, then PC-to-new card, then new card-to-phone, etc. I read somewhere on here that you must ...
4
votes
1answer
644 views

Android boot loop after fresh install

Phone: Nexus 4 with the latest android 5.1.1. Accidentally I broke my screen and turned off my phone. After a month my screen was replaced and then I got stuck in the boot loop at the start. I've ...
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1answer
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Sony Xperia Z stuck in a bootloop

My Xperia Z is stuck int a bootloop. It goes up to the colorful waves and then it restarts. It was connected with USB in charging mode. Suddenly, it starts restarting. I thought it might be carrying ...
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3answers
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Android Tablet Stuck at Boot Screen

I am new to this forum. I just wanted to seek your help. I have a tablet which is working fine a few days. But one day when I started the tablet its got stuck at android screen. 10-20 and even 30 ...
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3answers
1k views

Android failure to boot on LG

I need to recover data from my AT&T LG Thrill Android Phone Background: My AT&T LG Thrill phone's battery died a couple of days ago because I forgot to charge it. When I charged the phone ...
3
votes
4answers
18k views

Nexus 7 stuck in a boot loop

I have a two-week-old Google/Asus Nexus 7 tablet, unrooted and otherwise standard. Yesterday it ran out of charge a lot faster than it usually does, and wouldn't seem to recharge. When it finally ran ...
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votes
4answers
4k views

Android M Nexus 5 boot loop

As soon as I got home after the Android M image was available, I (of course) flashed it to my Nexus 5, following all the usual procedure (e.g. wiping Dalvik and Cache). Now it's been stuck on the ...
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votes
1answer
6k views

Galaxy fit stuck at boot screen

My galaxy fit became unresponsive after the phone memory got full, so I removed the battery and replaced it back. Now my phone is stuck on the booting screen, it just shows the glowing samsung text ...
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1answer
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Debugging bootloop: Get an information log without ADB? Can an emulator help? [duplicate]

Possible Duplicate: Android boot-up messages for debugging? Related to this post I created: Does the Android emulator generate some sort of log file I can access if it crashes? I have been ...
3
votes
1answer
14k views

Moto G 2nd Gen - caught in a boot loop

My Moto G 2nd Gen, got caught in a boot loop. My phone keeps restarting, but doesn't get past the screen where Motorolla symbol with 'powered by android'title at the bottom shows up. Is there a known ...
3
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1answer
16k views

Stuck in Fastboot?! Help please!

I tried to get CM11 on my LG G2 on Bell Canada's network and I really messed it up. I can no longer get into recovery, adb doesn't see my phone, but download mode works (though I have no idea how to ...
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4answers
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Galaxy S3 stuck on boot loop, Factory Reset didn't work

My Samsung Galaxy S3 (GT-I9300) was rebooting itself for the past few days, randomly. Today, it did it again, but didn't boot back up. Instead, it is now stuck on an infinite boot loop - it gets as ...
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2answers
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Nexus 7 soft bricked, Need to recover data

I don't know if I'm posting this on the right website or not, but I'll try anyway. I recently brought a Google Nexus 7 (non-SIM version). I've used it for around 3 months now and everything was ...
3
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2answers
24k views

How Can I Pass Bootloader (Huawei Y200 stuck logo/ Boot-Loop)

I have recently learnt a few things about Android and its system. I have a Huawei Ascend Y200, and I flashed it with ClockworkMod specifically for Y200 with a computer and it worked. I rooted my ...
3
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1answer
90 views

Software installation

I got stuck in Huawei Logi and wont start, then I did this instruction "Download the same build you had before getting stucked or newer one, Extract it and transfer "dload" folder to the root of FAT32 ...
3
votes
0answers
239 views

I/O errors opening files in data partition

I'm trying to repair a Moto G (XT1008, unlocked) device. When booting normally, the motorola splash finishes and the android desktop shows up for one second, then a bunch of pop ups show up informing ...
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0answers
60 views

HTC Desire keeps restarting every 30 seconds

My HTC Desire is 2 years old. I have had numerous issues over the last 2 years between random freezing, unmounted SD card etc.. But now my phone will start, stay on for 30 seconds, and then shut down. ...
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3answers
155 views

My phone is soft-bricked after ADB update

This is the problem: I always connect my phone to computer, to charge it, but I tried to execute ADB shell into recovery mode. 1- I've entered into recovery mode 2- I tried to go to "Apply update ...
3
votes
0answers
142 views

Boot-loop after flashing custom ROM. What went wrong in procedure?

I tried to flash a custom ROM on my old Samsung GT-I8190N. It's the first time so I need some advice. The steps I followed are as follows: I downloaded the ROM zip file Jellybean 4.1.2 (CyanogenMod ...
3
votes
0answers
4k views

LG L5 E612 Random Restart Problem

I have an LG Optimus L5 (LG-E612) that has been acting up since five days ago. I would like to wipe device clean and do not mind if I lose data I have on device, however, I unable to do this. ...
3
votes
1answer
2k views

Can't boot, can't view recovery options, winok w77, no support from manufacturer

I have a friend staying over and he has an android tablet: winok model w77 The tablet is stuck on a boot loop and I am trying to get it working again however nothing I have done so far has been of ...
3
votes
2answers
904 views

Samsung galaxy Nexus Dead/ Bricked

I have installed a custom rom (Cynogenmod 10.2) on my Samsung Galaxy Nexus i9250 GSM three months before, and everything was running good. But starting 4 days ago, my phone reboots constantly after ...
3
votes
1answer
3k views

Why does Android drop files I transfer to SDCard while in recovery mode?

Here's my situation: I have a Sprint Samsung Nexus S 4g. It is rooted, unlocked, and loaded with CyanogenMod 10.1. I am attaching it to a Windows 8 machine via USB cable. Recently, the phone went ...
3
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0answers
576 views

Nexus7 Stuck in Reboot Following Full Discharge [duplicate]

I am experiencing the same symptoms as described in the following: " Nexus 7 is stuck in reboot loop after full discharge " My Nexus 7 is full discharged. I have it connected to Factory AC-to-USB ...
3
votes
2answers
2k views

Bootlooped Samsung galaxy s2 t989D

I have the Samsung Galaxy S2 T989d and my phone is stuck in a bootloop with CyanogenMod. I want to get some pictures off of the internal SD before I wipe it and install the stock rom. I tried getting ...
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2answers
2k views

How to get Recovery without the Hardware key

Apprently I am stuck in a known problem the Cyanogen Bootloop. The solution involves going into recovery, which is not possible since my "volume down key" is physically damaged. Do I have any options ...
2
votes
1answer
14k views

Xposed Framework with KitKat ART?

I have an SGS-I8190 with CM11 from http://maclaw.pl/ I explored the Xposed Framework, but it is not compatible with ART. It switches back to the old buggy and lame Dalvik. XDA says, that ART ...
2
votes
3answers
12k views

Nexus 5 stuck in boot screen

My phone is Nexus 5, not rooted, android version 4.4.4 I hated the "swipe up" gesture for google now, bacause I'd sometimes do the gesture by accident. So I read somewhere that I should disable "...
2
votes
1answer
3k views

Sprint Galaxy Nexus stuck in boot-loop

I have a stock Sprint Galaxy Nexus device. This device is unrooted, I have made no changes to the OS / Rom whatsoever. Today this device froze, it was showing a completely black screen except for the ...
2
votes
3answers
2k views

Xperia Z3 boot loop after TWRP installation

My Xperia Z3 was running Android 5.0.2. The model is D6653. I didn't check the firmware build number. I followed these steps. Everything was successful with no errors. ➜ Sdk sudo $(which ...
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2answers
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Stock Nexus 5 reboots randomly

I cant take it anymore and even with a full insurance plan, Sprint is not willing to replace my phone with a brand new identical phone. It has had this issue from day one. I think it rebooted itself ...
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5answers
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Nexus 5, I'm getting remote: flash write failure while trying to fix a bootloop

Before I say anything I just want to say I didn't install any custom ROMs nor rooted my phone. I've downloaded the factory images from here https://developers.google.com/android/nexus/images#...
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3answers
4k views

Changed device DPI now stuck in a bootloop

Device: OnePlus One ROM: MultiROM with CM11s as internal, and CM12 nightly as secondary Recovery: TWRP Backup location: USB OTG Backup method: Online Nandroid Backup application So I have quite ...
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1answer
15k views

Stuck at “Installing update…” in recovery mode

I am not able to flash my Nexus 4 with Cyanogenmod 11 anymore. The installation does not successfully finish, which is probably why it gets stuck in a boot loop after restarting the phone. During the ...
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votes
1answer
4k views

Link2sd: boot loop at reboot

I'm happy with link2sd functionality (just installed: everything looks awesome, lots of free space). I reboot and my Acer liquid metal is stuck in bootloop. I take the sd out, boot again and ...
2
votes
1answer
1k views

Can update.zip update-script be used to copy build.prop to an SD card?

I made the unfortunate mistake of lowering the dalvik heapsize to 64m and now my tablet is stuck in a bootloop . I've tried to make my own update.zip (including signed ones) and all fail to load in ...