Can you reformat an external USB hard drive in low-level format?

Unfortunately, this has come close to a pair of speakers

It shouldn’t be anything. Degausser the hard drives can demagnetize are much stronger!

and has many erroneous sectors since then and can hardly be formatted because there are defective sectors everywhere.

How do you know? How do the SMART values of the plate look? Please check with Crystal DiskInfo and post a screenshot of the values.

Can you format this hard drive with a program again completely new lowlevel or is this now a case for the garbage?

You can no longer format hard drives really low levels since at least. Thirty years. There were some tools that pretend to do this, but these were various maintenance tools that have used this term easily.

Defect sectors map the hard drive during operation via the G-List. The fit in the firmware itself and does not need to do any of you…

Therefore, I suspect a completely different problem that happened shortly after the event. I myself have experimented with various old plates and strong neodymium magnets and nothing happens so quickly.

Don’t forget that only in the inner HDD are 2 strong magnets beside the magnetic discs: ?s=1024×1024&w=is&k=20&c=B7fw06TFh_n7nxwhYJYwhJLkTCwCRYB13FgpLI=

You see the one magnet under the coil on the pivot arm. In most cases another magnet is in a stirrup above it.

You need them to control the arm movements.

So you need a really strong magnet to cause damage. Also gives various videos where people with monster magnets have approached hard drives to test what happens. If you’re jack, you can watch them.