y0din , 12 days ago

if you have access to a windows computer, or perhaps wine can work?, there might be a solution in the bottom of this thread where someone had a similar problem

https://superuser.com/questions/972013/how-to-repair-corrupt-jpeg-files

haven't tested it, so do some antivirus checks on the tool before you decide to test it just to be sure.

good luck, hope you get it sorted