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

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3
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1answer
406 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 ...
0
votes
0answers
17 views

Hello. How can I forcibly prevent specific apps from starting at boot? [duplicate]

I would like to force a few apps in particular to not stop when I boot, reboot, etc. The reason why is irrelevant ... I would like to know if or how Aneroid OSes, in general, load apps into memory, ...
1
vote
3answers
26k views

samsung galaxy s2 continually flashes and will not turn on

I hope someone can please help me!! I have had my galaxy s2 for about 1 year with no problems until now. I have never dropped the phone or gotten it wet etc...today I forgot to pay my bill and phone ...
2
votes
0answers
1k views

How to create start up scripts using the init.d folder?

In this answer to a question I asked a while ago, he said it's possible to have a script executed every boot. I created a file (without extension) that contains the following: #!/system/bin/sh ...
0
votes
1answer
305 views

Can I run scripts on startup on rooted Galaxy Note 3?

I want to be able to run a shell command (e.g. mount) on startup on my Galaxy Note 3 (stock rooted Android 4.3) Typically on Linux that'd be done using /etc/init.d but I don't have that directory on ...
4
votes
2answers
49k 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. ...
7
votes
4answers
61k 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 ...
2
votes
1answer
350 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
511 views

Problem upgrading a Lenovo A2107

I have a Lenovo Ideapad A2107-H and I read this guide. I followed the guide step by step to upgrade my Tablet. On step 6 I got assert failed: getprop("ro.product.device"), so I deleted this line in ...
3
votes
2answers
544 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 ...
0
votes
0answers
2k views

Want to change boot screen(with Samsung logo) appears before android animation in Samsung galaxy tab

I am an beginner to android, but now i want to replace boot images like Samsung galaxy logo which appears during boot time in my Samsung Galaxy Tab. I have used many file managers like root explorer ...
2
votes
1answer
5k views

How can I enable adbd during boot on Cyanogenmod?

I am stuck during the boot process, at first before entering the passphrase for /data and now at the SIM PIN screen. At this point, adb is inaccessible (normally adbd would start up after unlocking ...
2
votes
2answers
1k views

How does Startup Manager block startup apps?

I am using the market app Startup Manager on Android, but I am a little bit concerned in the way that it operates. Is it effectively runnning every time as a daemon and thusly keeping the apps from ...
0
votes
0answers
206 views

Galaxy S2 won't turn on properly

My Samsung Galaxy S2 wont turn on properly, it just flashes the boot screen. I've tried taking the battery out and turning it on without the SD card. What should I do? I don't want to factory reset it ...
1
vote
1answer
827 views

How to ensure dalvik-cache and lib are linked to SD on boot?

Recently, I upgraded my htc-desire with a bigger SD Card with a partition of 512Mo on it. I installed link2sd to place apps on SD card ext4 partition. Then I had to create by hand, the mount script ...
0
votes
1answer
1k views

Android does not boot because of missing apk files in system/app folder

I moved the question from http://stackoverflow.com/q/15872848/1665807 I have a rooted Huawei u8825d phone.I want to know if there were no apk files in "/system/app/" folder. So,I moved these apk ...
0
votes
2answers
446 views

I can not reboot my Glaxy s 9000

I was running CynogenMod 10 successfully on my Galaxy S 9000 till I got an update message which I unfortunately applied. It seems it could not get access to my apps installed to sdcard. Unfortunately, ...
0
votes
0answers
40 views

Pulling boot.img [duplicate]

I want to pull boot.img from my phone for rooting. I am using Ubuntu 13.04 PC with android SDK and adb drivers installed. I tried to root my phone in many ways. But there are not much tools available ...
0
votes
0answers
169 views

Battery Drains out Suddenly

So here is what happened! I was simply going though my phone (Canvas HD running Jellybean) when suddenly it hangs and then shuts down. I try booting it. It turns on but goes off again. I try it yet ...
1
vote
0answers
461 views

Can't boot because of deleted com.android.launcher2

Stupid me deleted the com.android.launcher2 apk file (located in system/app) thinking that my tablet will boot with another launcher I installed and now it doesn't boot up (gets stuck in loading ...
1
vote
1answer
3k views

How to use Tasker to kill apps on/after device boot?

I have several apps auto start at boot, and it's really not necessary. So I'm trying to use Tasker to kill them on/after device boot. Tasker has a "Event - Device Boot" option, but it seems that does ...
0
votes
0answers
215 views

Boot from SD card

As PC can boot from CD or USB I wonder if android devices can boot from SD card? Could it be used for repairing original bootloader?
2
votes
2answers
1k views

HTC Desire won't boot - buzzes 7 times instead

I've just bought an HTC Desire and it seems to have stopped working. On startup, I just get the O2 splash page, then it buzzes 7 times, and that's it. I tried holding down the Vol down key, then the ...
1
vote
2answers
778 views

Nexus 7 Not Booting; Backlight Turns on while Charging

A friend of mine has a Nexus 7 2012. Although it used to work, it now won't turn on. I would mark this off as a broken battery or screen if it were not for this one oddity: the backlight turns on ...
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 ...
0
votes
3answers
3k views

Is it possible to Boot into Safe Mode on an Android Device as a Precautionary Measure If Required?

Is it possible to Boot into Safe Mode on an Android Device, similar to booting up into safe mode on a Windows PC ? An example being In Windows if you were infected with a virus you may want to ...
1
vote
2answers
7k views

Samsung s duos not booting into recovery

I have flashed the recovery.tar using odin by following this tutorial http://www.droidiser.com/2012/10/how-to-root-samsung-galaxy-s-duos-install-cwm.html but after this,when I try to boot into ...
1
vote
0answers
59 views

why my htc status goes back to its rom defult settings after restart?

i have HTC status i had unlock and root my phone and also i created a 2nd ext3 partition which i linked it with Link2SD in order to improve internal memory. then i installed a bunch of different ...
0
votes
2answers
296 views

Samsung Galaxy s3 won't boot

My Samsung keep booting up and then after the intro where it should show my home screen it showing a blue flashing Samsung sign with the Led light glowing blue as well. I have tried taking out the ...
1
vote
0answers
2k views

Auto boot when charger connected (for HTC Magic)

I want to let Android OS to boot automatically when the charger connected (for HTC Magic) without pressing power button I found this guide: Complete boot when charging If your phone only gets one ...
1
vote
1answer
7k views

How to boot to ClockworkMod recovery with Galaxy5 GT-i5500

I have ClockworkMod recovery installed on a phone (Samsung Galaxy5 GT-i5500, I have used it in the past to flash ROMs). The phone is currently not booting, just shows the Samsung logo. I want to get ...
2
votes
1answer
5k views

HTC One X Does not charge or turn on

A day ago my HTC One X would not turn on. When I booted into developer mode it said at the top "**LOCKED**" and "Security Warning" (or something similar). It also said "cpu-bootmode: disabled". I was ...
1
vote
0answers
101 views

Exotic case of Galaxy Nexus not booting

Symptoms : Put battery into Galaxy Nexus (tried with two different including a brand new one) Plug cord to USB host or charger Large battery charge indicator icon appears in the middle of the screen ...
0
votes
1answer
396 views

Android won't start. It keeps showing Samsung Galaxy logo

It keeps showing the logo and doesn't get into Android. What do you recommend me to do? I've tried hard reset, it didn't work. (click image to enlarge)
1
vote
1answer
312 views

Device not booting after factory reset

My problems is my phone keep showing 'ANDROID' after I'm resetting it. I tried to restart but it keep showing the same. What can I do?
0
votes
0answers
1k views

Something wrong with my Samsung Galaxy Tablet 2 7.0 GT-P3100

After watching some videos on YouTube, it was quite laggy. So I tried to restart it but after restarting it won't turn on. I have no idea why.
1
vote
0answers
728 views

Can't boot phone or access recovery mode

I tried updating a custom ROM on my Samsung Galaxy S: Semaphore Version 9 (Android 4.2.2 Jelly Bean). The update was successful except that it produced an error after completion saying the process ...
1
vote
2answers
324 views

How can I get my phone to boot again?

I have a Samsung Galaxy Mini (GT-S5570) and the ROM I'm using is CM10.1, I was messing with the developer options and I saw an option called "simulate second screen" and I clicked that and selected ...
0
votes
1answer
709 views

How to install Android to any phone very first time?

I know this sounds weird one. But I have a Motorola Photon 4g which has got corrupted or some unstable ROM. I am facing 15-20 blackouts and restarts. This led to think like that. I want to know the ...
2
votes
1answer
455 views

MicroSD card performance during boot

I have a Nook HD+ and a Nook HD. When I ran CyanogenMod off of a MicroSD card, the Class I (43MB/s) doesn't even boot! I spent $30 on a 32GB one. The Class 10 (10MB/s) 16GB booted, but ran poorly ...
0
votes
0answers
1k views

Motorola Defy wont boot asks for update.zip

I have put myself into some trouble. My defy wont boot. I have gone to the Android recovery console and have a few options there. I option is apply sdcard:update.zip can someone explain me what this ...
1
vote
1answer
11k views

what is the download mode

could anybody explain what is this download mode? As described in here How to root Innos A35 as I hold vol up +vol down 5 seconds and at the same time connecting the USB cable to my computer it shows ...
2
votes
2answers
461 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?
0
votes
0answers
521 views

How to fix the boot of an android tablet

I have a Plum link tablet that when it is booting doesn't load the OS. When it tries loading the OS it gives me this error: Unfortunately system UI has stopped, and then cannot complete loading the ...
1
vote
2answers
105 views

Is there a special boot mode to boot into a system with root access (on Galaxy S)?

What if the Samsung Galaxy S I've got has already been rooted?.. Is there perhaps a special boot mode which would boot into the system with root access? Or normally, a "rooted" device always boots ...
1
vote
0answers
302 views

how to lower boot up time? (many apps 122, rooted device)

[old subject: link2sd not mounting second partition, "quick restart" fails too] [IMPORTANT: boot time took 20 minutes, see at the end...] My phone suddenly reboot (while I was ...
1
vote
1answer
1k views

My Sony Xperia S started rebooting after i installed Beats Audio Installation

I was looking through the Google Play Store after I rooted my Sony Xperia S The other day, and came upon the app "Beats Audio Installation" & Downloaded it and then when i opened the app and ...
2
votes
0answers
341 views

T-Mobile Prism won't boot

My t-mobile prism, will not turn on. It is unrooted. The only thing that happens is the backlight for the screen comes on and the buttons light up. When I try and boot it into recovery mode. Nothing ...
0
votes
1answer
723 views

Creating partitions through script in init.rc

Context/Resume: I'm changing the android platform to create two partitions in a SD Card. I need to do this as early as possible. I'm currently trying in init.rc It would be nice to obfuscate the ...
1
vote
2answers
284 views

Seems like my SD Card just died… can I insert a new one?

So today my HTC Desire randomly froze, then started acting strangely - only showed the background image, nothing else. Didn't respond to power-off or anything so I pulled the battery. After this, it ...