Help Swees X538

[shwing]

I flipped on my phone this morning, but all I got was a black screen with a blue line at the top saying ALS/PS & it wont turn off - any ideas

 

[Hadron]

If it has a removable battery, try removing it for a couple of minutes, then see. If not, try pressing and holding the power button (most devices with fixed batteries can be restarted by pressing power for 10-20 seconds).

Is there anything covering the proximity sensor (a case, or even a bit of dirt)? I think that's what "ALS/PS" refers to.