Stuck in Factory Mode - NEED HELP

Sentient

\n\nMy phone just suddenly started rebooting itself repeadetly, only displaying the UMI logo, then after some minutes this Factory Mode menu appeared, the options are:

Auto Test
Manual Test
Item Test
Test Report
Debug Test
Clear eMMC
Version
Reboot

I have no idea what's going on or why this has happened, how do I get my phone back to normal? Help

Update: Okay I kinda figured out how to navigate the menus, the up, down, power, home and back buttons kinda work, but regardless I still don't know how to fix this situation.

MarcinP

Choose reboot firstly.
If doesn't help press and hold power button until phone switch off it self (around 10 seconds)
Last option will be clear eMMC but this will wipe whole your data and restore factor settings.

Sentient

Reboot option brought me back to Factory Mode, same as holding the power button to switch it off. Once it finally ran out of battery and I recharged it the next day, it booted normally. This Umi piece of crap has been nothing but problems, I'm buying a new phone today.

Wooley4766

Looks like key of volume was stuck in..