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

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31
votes
1answer
131k views

How can I stop applications and services from running?

When my phone starts up there are several application/services running in the background that I would rather not. And when I press the Home button while using an app, that app usually goes into the ...
21
votes
3answers
46k views

How can I run a script on boot?

I'm accustomed to running scripts on boot in Linux, but I'm not sure how to do this in Android. I'd like to start my SSH daemon on start, so I'll always be able to connect. How can I run an arbitrary ...
13
votes
1answer
376 views

What's the name of the protocol that android devices use in debug mode?

I have a strange Android prototype what we got from a customer. Said customer has forgotten about it, and I'm now fiddling with it to see if I can make it do anything interesting. The device appears ...
11
votes
1answer
1k views

How to speed up Android during bootup time?

I'm looking at the bootup time of Android on my embedded device and I'm trying to get a sense for where I can save some time. 1) What are some things that you've done to really help speed up the ...
9
votes
1answer
4k views

Can somebody explain the boot process of an Android device?

From the user's perspective when switch on the phone, I see two boot animations in my LG P500 running CM10. The first animation is from LG and the second animation is from CM10. Then it settles in ...
8
votes
2answers
2k views

What is my phone doing when the boot takes a long time?

I have a Samsung Galaxy S with stock Android 2.3.3 (with carrier modifications, regretfully). Usually, when I reboot the phone, it shows the boot animation for a few seconds, then goes to the lock ...
7
votes
4answers
60k views

Galaxy S GT-I9000: how to fix boot to recovery with Volume up+Power?

I have Samsung Galaxy S (GT-I9000) and I've installed Cyanogenmod 10 M2. I can reboot into recovery from Cyanogenmod (Hold Power button, select Reboot and Recovery). However, I cannot boot directly to ...
7
votes
2answers
1k views

Why does adb work only while the tablet boots?

I have a Samsung Galaxy Tab. When I type "adb devices" or "adb shell", it works while the tablet is booting up - showing the Samsung logo or animation - but once the orange lock screen shows, the ...
6
votes
5answers
12k 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 ...
6
votes
2answers
6k views

Does android keep a log of when it starts?

I'm making a parental control/accountability app for android. It consists of a monitoring service that runs in the background and starts when the phone is booted. Unfortunately, I have found that ...
6
votes
1answer
447 views

What is the difference between aboot and boot?

I'm looking through my device and I noticed within /dev/block/platform/msm_sdcc.1/by-name that there is boot and aboot partitions. What is the difference between them? Mainly what is aboot?
6
votes
3answers
6k views

Atrix will boot up but unlock screen is unresponsive

I'm having my first major issue with my phone, the Atrix (not Atrix 2). The phone is stock Gingerbread, not rooted, and I don't download any dubious or non-Market apps. While using my phone today it ...
5
votes
1answer
5k views

How does the typical Android boot process work? [duplicate]

Possible Duplicate: Can somebody explain the boot process of an Android device? Windows follow some specific way to boot: Start System > BIOS > Load Boot loader > Load WIN Kernel > Load WIN ...
5
votes
1answer
401 views

Start services at boot

How to make applications start at boot? I have at least 2 which I'd like to start automatically but they don't (I need to manually start them to have services run in background): Skype Lookout
5
votes
1answer
4k views

Turn phone on with ADB or Fastboot?

My power button seems to have busted, is there a way I can boot my phone using ADB or Fastboot or some other command line interface?
5
votes
1answer
621 views

Phone boots very slow and restarts by itself

My problem is when I turn on the phone, the Google logo stays stuck and after unknown minutes boots in with the software animation, but very slow and then starts over again! First a little history of ...
5
votes
2answers
2k 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 ...
4
votes
3answers
2k views

Does Android support the single-user mode runlevel?

Since Android is powered by a Linux kernel it should support booting in single-user mode. Which version of Android supports single-user mode and how is one able to start an Android device in this ...
4
votes
1answer
1k views

Problem with updating CyanogenMod - Phone will no finish booting up

TL;DR Updated CyanogenMOD with ROM Manager and when it rebooted it is stuck on this screen: I have an EVO with cyanogen 7. The ROM Manager app notified me of of an update. I clicked through ...
4
votes
2answers
47k 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. ...
4
votes
1answer
67 views

How to see what applications do some actions when I power on my phone?

I believe there's some set of “hooks”, which get executed when I power on the phone. I want to see it to figure out the reason why my phone sometimes doesn't wake up properly (wakes with black ...
4
votes
2answers
17k 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 ...
4
votes
1answer
1k views

G1 Unable to get past android boot logo

I have a T-Mobile G1 (HTC Dream), this morning it vibrated once and then restarted, it then went to the android boot logo went through that and stopped at a black screen. I've tried pulling the ...
4
votes
0answers
9k views

Samsung Galaxy S3 not booting up, just shows ”Samsung Galaxy S3 GT-19300” black screen

This morning I woke up to my Samsung Galaxy S3 which just “hung” during the start-up screen with the white text “Samsung Galaxy S3 GT-19300” on a black background. It never comes to the “Enter ...
4
votes
2answers
8k views

Extract boot.img

I have pulled boot.img from my phone's CWM backup. How do I extract it? I tried split_bootimg.pl. But throws an error - Android Magic not found in boot.img. Giving up.
4
votes
0answers
834 views

How to disable manufacturer logo in uboot

I have an Android tablet and I want the manufacturer logo not to display on powering up. It has something to do with the uboot-*.bin in NAND flash memory. The logo is stored in the bin file in GUNZIP ...
3
votes
3answers
554 views

Long boot time in Honeycomb

I just got a motorola xoom, love it so far, but it surprises me that the initial boot of the device takes so long (approx 1 minute). I figured with less RAM than my PC, a less "hoggy" OS (honeycomb ...
3
votes
1answer
10k views

Is it possible to boot an Android phone from a USB drive?

Is there any way to boot an Android phone* from a bus-powered USB drive**? If so, what are the steps to achieve this? * E.g. one with USB OTG functionality. ** E.g. a flash drive.
3
votes
4answers
35k views

Updating to CM11 - (Status 7) Installation aborted (i9300)

I'm trying to install CM11 onto my Samsung Galaxy S3 (i9300) so I can have the new Google Camera and Chrome Remote Desktop apps. I tried to install initially via the usual update menu, but got an ...
3
votes
1answer
3k views

How to enable adbd to listen to a port at boot time in Android?

I have a rooted HTC Hero, and what I want to do is to enable the adbd to listen to a port at boot time. I tried some code found here: setprop service.adb.tcp.port 5555 stop adbd start adbd in an ...
3
votes
2answers
3k views

How do I turn off the power-on sound and camera sound in a Galaxy S II?

I have followed several guides and can't get any of them to work on my Galaxy S II. How do I disable these sounds?!
3
votes
1answer
388 views

Low level Android kernel hacking

Where can I find information regarding low level kernel hacking on Android? For example, I'd like to know how the device boots and follow the execution path from that point. Where exactly is the code ...
3
votes
2answers
514 views

How to interrupt Android boot sequence to force it boot to Linux kernel only

I am trying to do some low level performance testing related to device processor cores through adb which I feel it is affected by Android background services and system stuff. As I know that the ...
3
votes
1answer
383 views

How to determine cause of boot halt in Samsung logo screen?

The apps kept crashing on my phone (even MIUI Home) so I shut it down using the long power press and selecting shut down/power off option. When I powered it back on, it just stays stuck on the ...
3
votes
2answers
6k views

Device always boots in recovery mode, but apparently there is no recovery partition

We have a BSNL Penta IS709c (cheapest tablet currently available / Oct 2012) running Android 4.0. Feeling adventurous, I issued reboot recovery through adb and the device tried to reboot in recovery ...
3
votes
1answer
798 views

Android tablet booting issue (Sanei n80)

I bought Sanei N80 android tablet two months back(android 2.3).I tried to root using z4root app.It stuck in the middle so i switched off and switched on the tablet.Now the tablet is not booting up ...
3
votes
1answer
249 views

LG Optimus P690 - how to launch silently

Is there a way (without rooting) to skip the startup sound on LG Optimus P690 if sound was not disabled before turning the phone off?
3
votes
1answer
2k views

Galaxy Mini hangs at boot - how can I fix it?

My Galaxy Mini powers on, but then hangs on the "Samsung Galaxy Mini" splash screen. How can I re-install Android, or get it booting again?
3
votes
2answers
1k views

Android Nexus S Boot Freeze

My Android Nexus S does not boot anymore. If I start it normally, I get a screen like the following and it won't ever change (tried for hours): I can still go into the boot loader with PowerOff + ...
3
votes
0answers
414 views

init.d doesn't get executed

i am using samsung s2 and a custom rom, external sd card is mounted to /emmc but i want it to mount to /mnt/sdcard/external_sd, how could i mount it using init.d? i made a file called "99mount" with ...
3
votes
0answers
316 views

Android restore bootstrap nandroid backup after a failed rom flash

I was trying to flash my Droid X2 to CM7, but it failed. Before I attempted the flash, I did a nandroid backup using an app called "system recovery" (MOTODX2_Bootstrap_signed.apk). I want to restore ...
2
votes
2answers
3k views

Android 2.2 - How to see applications that run at start-up [duplicate]

Possible Duplicate: How can I prevent applications from running on startup? Hello! Is it possible to see which applications are set to run at startup? For example, the idiots at Yahoo made ...
2
votes
1answer
2k 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
1answer
5k views

Autoplay video on device boot

I have a Noontec A9 Android Smart Box TV thingy that needs to play a video on loop for a very long time. I found multiple apps that can do this but I am looking for one that will start playing the ...
2
votes
1answer
2k views

Nexus 5 stuck on “flying color dots lollipop” screen after Hard Factory Reset

I just did a wipe data/factory reset on my Nexus 5 (followed this tutorial: https://www.youtube.com/watch?v=mHJV_UprpE8) and now i'm stuck on the boot screen(which was my problem in the first ...
2
votes
2answers
460 views

Very long boot time on my Galaxy Nexus

My Galaxy Nexus 4.0.2 takes over three minutes to boot. Is this normal? Is it supposed to take this long to boot? Why does it take so long?
2
votes
1answer
631 views

Access root directory?

Assuming that I am not able to start up my phone due to a file that is missing on the file system. Would it be possible to get to my phone's root directory on my computer and to place the missing ...
2
votes
1answer
840 views

Can't boot my Htc Wildfire S after deleting Sense

I wanted to free up some internal space. So I decided to delete some pre-installed apps. Then I accidently removed an app called HtcSense.apk. As I rebooted it didn't manage to start anymore. I would ...
2
votes
1answer
1k views

Launch app on start (even SD card apps)

I'm pretty sure (despite of haven't seen them) that there are a few question about running some app when you turn on the phone. But I want a something a little more complex here. I have a few apps to ...
2
votes
3answers
5k views

Rooted phone bricked without CWM

Hello~ I just wanted to ask whether my phone has a chance to be fixed or not. My bro just installed a chainfire 3d app on it and the next thing I know, my phone was bricked and stucked on the android ...