SD Card on 9+ not writing pics

[lexcorp1]

My s9+ wont write pics to the Samsung EVO 128gb sd. A single photo will sometimes show in the preview circle but when clicked shows a grey page in Gallery. If I use burst then the first pic will sometimes show in gallery but the phone will lock up and go dead for ten or fifteen seconds when I try it again. I switched to store pics on phone and it works perfectly.

I mounted and unmounted the card and when that did not correct problem I reformated it in the s9+ and the same situation occurs. The phone has been restarted after each step.

 

[lexcorp1]

I should add that prior to reformatting the card, the previous photos on the card were in the gallery and the phone had no problem showing them. The card was previously in my s8+

 

[B. Diddy]

Welcome to Android Central! The SD card could be corrupt, defective, or counterfeit. Install SD Insight to see if the card is genuine or counterfeit. Counterfeit cards are programmed to report more storage than they actually have, and if you try saving more than the card can actually hold, then files can start getting corrupt. (Be aware that SD Insight might not work on all Nougat devices.)

If it's a valid card, then go to Settings>Storage, Unmount the card, remove it, and insert it into your computer. Can the computer read these files? Backup as much as you can right now, then run chkdsk to look for bad sectors: http://forums.androidcentral.com/am...guide-using-chkdsk-fix-corrupted-sd-card.html