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'...
4
votes
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 ...
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 ...
5
votes
2answers
12k views

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 ...
4
votes
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 ...
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 ...
5
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 ...
5
votes
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 ...
1
vote
1answer
457 views

How can I execute a Tasker reboot command only 1 time?

I'm working with a chinese tablet which needs to be initialized every time after it's connected to a power source. I'm using Tasker to do so. Problem is: this condition makes tasker execute the ...
0
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2answers
5k views

How to restore/edit build.prop after rebooting (and phone stuck in reboot loop)?

I was trying to setup a custom host name for my device(a rooted xperia z) following this guide but without paying too much attention, especially to the comments. I'm guessing I had a typo in the ...
0
votes
1answer
858 views

Recover data from bootlooped phone

I have a Samsung Galaxy S Plus (GT-I9003) that is stuck in a boot loop. It is running the stock Samsung firmware (Android 2.3.5). I want to recover the data (specifically of the Memo application) from ...
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 ...
3
votes
4answers
82k views

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 ...
7
votes
5answers
13k views

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 ...
4
votes
3answers
66k views

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 ...
4
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 ...
3
votes
2answers
2k views

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 ...
2
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0answers
789 views

Nexus 4: Stuck on boot animation for baseband version != 2.0.1700.48 and android version > 4.3

The symptoms I'm seeing seem to be common, with many suggested solutions, none of which I've found to solve my case. I'm not sure to what extend it is related, but it happened after the screen was ...
0
votes
1answer
111 views

Phone not booting after rooting attempt

I tried to root my phone Samsung Galaxy J1 (SM-J100H) with Odin3 software following some steps, but after that now it's not working, I turned on the phone and it vibrates one time and I see only the ...
8
votes
2answers
12k views

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 ...
3
votes
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 ...
3
votes
1answer
11k views

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 ...
2
votes
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
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
0answers
46 views

Can anybody identify this device?

I am trying to fix an Android tablet. As far as I know, it's stock, but that's about it. There is no inclination of the manufacturer. Here are the pics: Back and front (click images for larger ...
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1answer
493 views

Boot loop on Asus TF700T with Cyanogenmod 11 M12 and “Error mounting /data!”

My Asus TF700T with Cyanogenmod 11 M12 (20141112) and ClockworkMod Recovery v6.0.4, remains stuck in a boot loop after every reboot attempt. Earlier Cyanogenmod versions (I believe, it was 10.2 and 11 ...
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vote
1answer
2k views

How to regain control over a Samsung Galaxy S II with a Boot loop?

My device is in a wicked boot loop and I cannot get any control over the phone. If I take the battery out and put it back in, it just restarts again and again. I don't feel like I have any control ...
1
vote
1answer
2k views

Backup an app's complete data when phone is stuck in bootloop

My rooted Moto G is stuck in a bootloop. I want to backup a specific app. usb-debugging is enabled. I have access to bootloader and twrp recovery. I have tried wiping cache and dalvik cache and even ...
1
vote
2answers
2k views

Updating HTC Sensation to Ice Cream Sandwich is stuck in a boot loop

I'm trying to update my unbranded HTC Sensation to an Ice Cream Sandwich stock ROM (from here). I've followed the various instructions where I install the ROM, then flash the phone with the HTC ...
1
vote
1answer
6k views

Cannot boot into recovery (Samsung Galaxy S)

My GT-I9000 device recently got stuck in a bootloop, and now I'm trying to put CyanogenMod on it, hoping that this would fix the situation. I can use Heimdall to install the ClockworkMod Recovery on ...
1
vote
1answer
1k views

LG Motion Keep Rebooting (Boot Loop) After Installing Beat Audio Installation

I was looking through the Google Play Store after I rooted my LG Motion 4G The other day, and came upon the app "Beats Audio Installation" & Downloaded it and then when i opened the app and ...
1
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0answers
403 views

How to fix emmc memory showing 0mb?

Yesterday actually I messed my Xolo Q700. Actually I wanted to install a custom ROM "experia final" on it. But I didn't installed any custom recovery previously. So I installed TWRP recovery using ...
0
votes
3answers
13k views

Bootloop using Sony Xperia Arc S (LT18i)

Hey guys so I'm in boot loop. Yes I know there are many guides all over saying how to fix it but I have tried many of them and they didnt work. What happens is I start the phone, it shows the boot ...
0
votes
0answers
710 views

OnePlus One running CM12S is stuck in boot loop

My OnePlus One is locked in an eternal boot loop, in which it boots to the boot screen, turns off, and then proceeds to repeat this over and over again. I left it on top of my air conditioner while ...
0
votes
1answer
167 views

How to resolve boot loop problem on android PumpKinx 10.1" tablet

I've android PumpKinx 10.1 tablet with 5.1 Lollipop android os. I did take backup of its stock recovery image. Since there is no custom recovery image for this device I tried to flash it with twrp ...
0
votes
0answers
952 views

How to enter safe mode on an HTC Desire w/CyanogenMod stuck in boot loop?

I have an HTC Desire with CyanogenMod 7 installed. After ignoring the low storage warning for a couple of months, it finally crashed and since then is stuck in the dreaded boot loop. I am able to ...
0
votes
1answer
713 views

Bootloop after CWM Restore

I have a Good Backup from CWM, after installing chainfire 3d, It went to boot loop, I restore the device through CWM, but the device is still in boot loop,. dmesg.log http://pastebin.com/1u4PGhsr ...
0
votes
1answer
781 views

Failed to root CM 12.1 and nuked Samsung I9300

I upgraded to CM 12.1 and lost root on my Samsung Galaxy S3 (I9300). I tried to root the device with CF-auto-root again. It worked. But when I rebooted the phone, the blue android screen appears and ...
0
votes
1answer
3k views

Data recovery on boot-looped Samsung Galaxy S II GT-i9100

I have a boot-looped Samsung Galaxy S II GT-i9100, running the Android 2.3 Gingerbread it came with, unrooted and unmodified (although Optus-branded). The phone's battery depleted while the phone was ...
0
votes
1answer
290 views

need help Nexus 9 stuck in endless reboot loop

need help here. I to tried rooting my Nexus 9 and have ended up getting it into an endless loop of it trying to optimize apps. I did see Firelord's post to do this... Using Firelords' and Jan's ...
0
votes
1answer
1k views

Samsung Galaxy S3 i9300 Boot Loop Problem

Problem: Phone battery ran out. Popped spare battery in and the boot loop began. Can only go so far where the screen says "Samsung Galaxy S3 i9300" and nothing further. Tried with no success: ...
0
votes
1answer
563 views

What can I do to save my Samsung Galaxy from a bootloop?

I have a relatively old phone that I would like to make some use of again. It's the GT-I9000, and it's currently stuck in a bootloop. I'd like to install CyanogenMod on it. I've already flashed it ...
0
votes
0answers
4k views

How do I escape a crash/reboot loop without losing data?

My Motorola Atrix 4G (MB860) is stuck in a crash/reboot loop. I believe it is running Android 2.3.6, but the phone doesn't stay on long enough to confirm. It seems this is a common problem (why is ...
0
votes
0answers
286 views

Im stuck in a Bootloop after editing build.prop system files ive tried everything to reset, reboot my device [duplicate]

I have a Xperia P. I changed build.prop files and my device has been stuck in a boot loop ever since then the stock Sony reset wont boot the device into recovery neither will my custom clockworkmod ...
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2answers
5k views

Sony Live With The Walkman : Phone is restarting continuously

I have a problem with my Sony Live With The WalkMan phone, it has Android 4.0 (ICS) and was working well before last week, the problem started a week before when I tried turning on my phone's ...
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votes
1answer
5k views

Stock Nexus 4 stuck in bootloop

My Nexus 4 suddenly went into bootloop today after getting drained last night. I tried booting into recovery mode, but as it is not rooted or unlocked, fastboot and adb sideload do not work. I want ...