Restoring s6 edge wont work

I try to restore my phone and when I do it from settings factory data reset it turns off the phone and doesn't turn on until i hold the power button when I do a hard reset i turn off the phone held power volume up and home and it just keeps on the s6 screen where it says samsung galaxy s6 edge custom powered by android then after 10 seconds the home and back buttons flash like 3 or 4 times then it freezes for like 2 minutes then the screen flashes bright white with son other colors mixed in for a millisecond then turns off immediately and won't turn on but after holding the power for a moment and letting go the phone lights up 10 seconds after i let go and the phone boots up like nothing happened I tried before i rooted it and it wouldn't work my warranty is obviously voided since it's rooted and I'm mad that that's the reason I rooted is to get twrp or cwm and they don't support my variant its a galaxy s6 edge cellcom SM-G925R6 on android 5.0.2 and I want to reset since it's been having performance issues, anyone know what the heck I should do? Bottom line it won't go to recovery menu, but for some reason download mode works just fine. I feel like crap since it's not a cheap phone and I messed up my warranty trying to fix this thing. Phone still works as it did but it just needs to be reset since it gets slow.