I have tons of pics on sd that I take with my Nixon L 830. now all the sudden it says I haven't formatted. how do I save pics

Solution
Move the images off the SD card at the earliest opportunity. Every day.
SD cards are a transitory storage solution, at best.

Try it in a different card reader or computer. See what happens.

TyrOd

Honorable
Aug 16, 2013
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10,520


Formatting will always make it worse, so don't do that.

There's really nothing you can do that won't risk further data corruption, so you need to send it to a data recovery lab that can recover from monolithic flash devices like SD cards and hope that it doesn't require a rebuild.