Display set to 0& help

[hjjknoob]

Hi. I need help here. I accidentally set my yuandao n80 display brightness to 0% and now i cant see a thing. is there anyway for me to restore factory setting? my device isn't rooted. it has a similar way of going to recovery mode by pressing vol up and down together with power button.(not rooted cant used this)

Sorry people... i found a way to do it. Thank to anyone who tried to help me

 

[3boys]

i have same problem with my n80 , would you please tell me how to fix it ?

thx