Seagate 7200.12 St3750528AS Help to check heads health.

[mycop5]

Good day!

I decided to get, fix a 750 GB Pharaoh St3750528AS from my junk
When turned on, it clicks and spindown. It goes to the terminal via ctr-z. After 2>U, it starts R/W Status 2 R/W Error 84150180
Looks like one ore more heads are dead....
As far as I understood from leisurely study, finally possibly to turn off the heads with the software or via the terminal. (maybe I interpreted it incorrectly)
so for now the questions are:
1. Is it really possible to turn off the main faulty head if the servo is not read? (well, i.e. disable it one and make it at least 500 GB)
2. Actually, from the first question, is it possible to test which heads are alive? There were different paths for commands here, I'm afraid to enter them yet (I haven't delved very deeply yet, that's why the questions.)
If someone can help shorten the path a little and get off with a little less bloodshed - I'll be grateful. I'm ready to tinker and read within reason. If it's really stressful and impossible without PC3000 or else, means, I'll let it go.

[lifeguarddubai]

if your purpose is just repair this and use, i dont think its worth the effort for single Disk you can buy used HDD 500GB for very low Cost online.....

Good Luck.

[mycop5]

if your purpose is just repair this and use, i dont think its worth the effort for single Disk you can buy used HDD 500GB for very low Cost online.....
Good Luck.

Yes, just repair,and use totemporary folders, for all sorts of junk, etc. Since you even started answering in the topic, I hope there will be answers specifically to my questions, and not unsolicited advice.