I need help with debug log review

Hello, I have a chinese phone MT6582 "Doogee Leo DG280", phone is working but stuck and rebooting when trying to make calls. I download firmware (checking google) and flash it using nck dongle android mtk and also with flashtools but get black lcd. I need someone look in the attached debugs logs and tell me if find a firmware problem or this is a hardware failure.

Thanks in advance

debug logs are here
debug_logs – Download – 4shared