Sort of BLOD but dont think it is

Hi all, new to this forum and seen some interesting posts.
Anyway this is my issue i sort of have the blod problem but i can at times boot into safe mode.
Its running 6.02 and ive started the process of updating it to 7.50 thinking the problem might be that but sometimes my tv just says no signal and the ps4 stays white then sometimes it gives me the blue light of death so im a little confused.
Thinking maybe the hard drive is gone but some advise or someone who has had this issue would be nice right now, just racking my brains but there not working lol

try tighting you clamp a little bit more… maybe that could help…