Reallocated sector count is 880. The temperature stays above 50°C. Is this a hard drive failure?
880 reallocated sectors is a sufficient reason to replace the dying disk.
For a rotating hard drive 50°C is already dangerously near the maximum allowed temperature. That temperature is increasing wear.
What is your ambient temperature? You should provide cooling for your drive to make your disk approach a hopefully much lower ambient temperature instead of heading towards the maximum allowed temperature.
If a possible successor of your drive is being put in that thermal environment, he won't live long.
Try to format the disk using a slow (not quick) format, which will rewrite all the sectors. Check the
Any variation of a window format command will delete stuff on the drive. This is a irresponsible hint!
