Have you installed an application that gives you trouble? Would you like to tinker with the basic operating system? Then you need to turn on safe mode Android, and Android Libre's how we explain in great detail, is the Android it.
Android, in general, is a safe and stable operating system, but there are times when a developer or a common user can screw up. At such times we miss a Safe Mode as having Windows, for example, but do not worry, because Android is also a safe way for these contingencies.
Android insurance Mode: how to operate
As we already explained quite well Dukevante back in Jelly Bean, we have a safe way Android handles only boot system applications (found in / system) and the services required to run Android. Nothing else, just the essentials for Android can run without any complications.
Several methods of starting this insurance are known Android mode. Google tried to unify this detail with Jelly Bean, but manufacturers have continued to do so as they would have appeared, and some older devices do not have to follow these rules. In any case, try all the methods described here you see unbootable in safe mode.
Start safely in Nexus, Sony, LG, HTC, Moto ... (Android Stock in general)
We hold the power button down until the window appears with the button to turn off
Hold down the button to turn off the screen until vibrates and displays a new window
In this new window, accept that the phone is restarted in safe mode
Start Safe Mode Samsung, LG and some HTC, Nokia ...
Completely turned the Android device
We light the device as usual
Hold down the volume button - when the screen appears Manufacturer
Alternative methods to start Safe Mode
[Some Samsung] Press the capacitive menu button while the phone starts
[Some Motorola] Hold down both volume buttons at boot
What will not be surprised if it takes a little longer than usual to start, this is normal. It's also worth remembering that, restart once back to normal mode with all applications and settings intact, something that many people do not know when mistakenly enters this mode. I said, what have you ever had to use safe mode?