My LG G3 won't turn on (blue screen)

[AC Question]

my lg g3 wil not turn on i have had it almost a year now and it has been fine for the most part the screen would freeze every once in awhile and i would have to power off and restart it but other than that it was fine. last week my phone just kept turning off and so i would power it back on and it was fine then i was using it and it did the same thing expect it went to blue screen first then shut off and did this one other time after i powered it back on before it did it for the last time time and i could not get it to turn back on so i took it to the fido store and they said to save all my file and comeback except i cant save my file because i cant get my phone to turn back on all the stuff on the memory card does not work so i have nothing backed up at this point. ive been trying to get it to turn back on but if i even get it to power on it never stays long enough to save anything.