Questions tagged [boot]

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

What is "Booting"?

Booting is the initial set of operations that a computer system performs when electrical power is switched on (e.g., power-on self-test and starting an operating system). Wikipedia puts it this way:

In computing, booting (also known as booting up) is the initial set of operations that a computer system performs when electrical power to the CPU is switched on. The process begins when a computer is turned on for the first time or is re-energized after being turned off, and ends when the computer is ready to perform its normal operations.

Related tags

While "boot" is a quite generic tag, our site offers a few more specific ones. Please use those if they better reflect your issue:

  • : the animation shown during the boot process
  • : The bootloader is started shortly after the device's basic checks and is responsible for loading the Android OS. It can boot the Android system, but also get you to the recovery console.
  • : a locked bootloader prevents you from booting unofficial firmware images
  • : when your device does not fully boot up, but starts its boot process over and over
  • : some devices are capable of booting multiple images
  • : the init process is started during booting, and responsible for the initialization of the underlying Linux system
  • : re-starting your device
  • : the opposite of "boot". If you have trouble shutting down your device, or your device shuts down itself without your intention, this is the correct tag.

Further readings

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What is the boot process of an Android device?

From the user's perspective when switching 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 with a locked screen ready for my input. What…
Narayanan
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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 stays in the splash screen (refer attached…
rsiyer
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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 happens when I press the volume buttons and the…
Deondre
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Android device can't boot

I have this device Samsung A5 2016 which has not booted for a while, wanting to repair it, I went into recovery mode however no option seemed to work, recurring error which appeared: "can't find misc/", I tried to make a bootable SD card then to…
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Android (Nexus 7) bypass swipe/notification screen

I have fixed in-car install of a Nexus 7 (5.1.1) using Timur's kernel. For years this has been working fine - turn on ignition,and the tablet boots straight to the home screen (or last activity it was doing). I only take the table out to charge…
Muckers Mate
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How to add an image to the hard-disk of an android phone

Dont mention about custom Roms, I want to load an image into the hard-disk and be able to access it from a computer can I do so? I want to know how to write to memory, and that includes wipping off the / directory. May be want to load linux into…
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Beginner question about Android ROM and boot process

I read tons of things about Android devices, but I did not manage to find an overview about the boot process. My technical level is okay to fully (really) understand how a PC boots. What I understand, but may be wrong: a device contains a main…
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Android can't boot -- displays booting splash until battery drains

My Android can't boot. It displays the booting splash (a sci-fi planet-like image) until the battery drains. Is this condition what's referred to as a boot loop? Is there any chance to recover? The condition came gradually. Each new time booting,…
amphibient
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Computer does not boot when Galaxy 2 in USB port

Yesterday Samsung Kies updated my phone to Jelly Beans. After that if I leave my phone plugged in usb port of my Dell Precision, the computer does not boot. It loads the bios, but never goes to the bootloader (Grub) selection screen and the screen…
kecal
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Custom init rc constantly failing/rebooting

I created a custom .rc file (/etc/init/nerding.rc) which initializes a custom "service" I made (/system/bin/listen) at boot, but after an hour or so my Android gets sluggish, isn't very responsive and when I check the dmesg, my nerding thing has…
Mikey Mill
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Arnova 10 G2 won't start

I recently got a Arnova 10 G2 in my workplace for testing. But unfortunately this device doesn't start up at all. I have charged it now for more than half a day. The Green led glows while I connect the charger. And sometimes I can see a home screen…
Andro Selva
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Secure boot requires PIN (2 tries left untill factory reset the phone)

I have a situation where I recently set PIN, activated Secure boot and booted up my phone and entered the PIN incorrectly 28 times. Now I have two times to enter the PIN correctly else the phone will be reset to factory defaults (images, all data…
Merkys
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Boot a phone with a broken power button

I'm hoping if there are any ways on how should I boot my phone. I've researched multiple ways on booting your phone thru adb but my computer fails to recognize it although I have Samsung Drivers Installed. USB Debugging mode is on since I'm using…
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does someone have a solution for "encryption unsuccessful" on redmi go?

operating system ONLY working - stock TWRP doesn't decrypt /data/ this solution doesn't work : http://www.electricbreadcrumbs.com/2012/07/guide-to-fixing-encryption-unsuccessful.html deleting cache and data does NOTHING doing factory reset only…
hacknorris
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Boot Loop Philips 55PFS8153 - UART Logfile

My TV is stuck in a boot loop.The classic tips don't help, I can't get into the Recovery Menu or the Service Alignment Mode. I connected it to the service interface and this is what I got: =~=~=~=~=~=~=~=~=~=~=~= PuTTY log…
Dave
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