Troubleshooting with Expand 64 GB

Hi everybody , 

My son did something to my EXpand Flash drive ( Probably reformat it …) 

So now the tool is not longer visible by the app .

My iphone and Ipad don’t recognise it .

Is there any possibilities to reinstall the origininal format and driver on the Flash drive ? 

I don’t find it so far …!

thank’s a lot 

JFR 17

you can format it using a computer. use either exFAT or FAT32 as the file system.