Yesterday, I locked myself out of my Android phone with the Application MobiLock. MobiLock is designed to lock your phone down to only a set of allowed apps and nothing else. It's fine when you want to hand your phone to someone you know for an extended period of time for a particular purpose. The starter version is free.

I had used this app to leave my phone as a remote for my ChromeCast so that our babysitter could watch some shows while we're gone. I set the PIN, gave it to her and unlocked it, when I got home. Nice and easy.

Hey,

for everyone who – just like me – bought a Samsung GT-I5510 (Galaxy 551) Android smartphone, updated to Android 2.3.6 via the official Samsung KIES software and subsequently had a nigh-flawless phone with the exception of the display not showing anything readable, please take a look at this video to see if you have the same issue.