Pahelp po Meron kasi ako old HDD 80gb puno ng p000rn JOKE haha puno sya ng mga important files ko like P000RN haha JKE LANG ULIT ahahaha bale puno sya ng mga documents ko ginagamit ko sya as external HDD kasi meron ako pang convert bale sinasaksak ko sya as USB parang Portable Backup. the problem is One time bigla nag brownout so nawalan ng kuryente then nung nag karoon na ng kuryente d na madetect ung HDD ko and bigla sya nag karoon ng tunog na ganto TIK TIK TIK TIK every 5-8seconds random, I tried using another LAPTOP or PC pero d talaga ma detect pahelp po
. If you use cd/dvd's that is damage you can heard some tik-tik-tik sound also. cd/dvd's is like HDD also but an mechanical one. Sad to say it's damage and i don't know if you retrieve the files. Bring it to the legit technician which have a repair shop maybe it can help you.