Peripheral ports on Apple USB keyboard used with iOS devices
I am using an Apple A1242 wired USB keyboard to type on iOS devices (iPhone XS Max, iPad Pro) and would like to save data to a USB thumdrive, plugged into one of the two open USB ports on the left and right sides of the Apple keyboard (usually used for connecting Mac peripherals, such as USB wired mouse). When I plug in a USB thumb drive, it does show up in the Sidebar section of the Files app on the iPhone, but not consistently. I've unplugged the USB drive and reinserted it several times (and tried it with differetn drives), but the drive is not consistnetly recognized. I'm looking for a way to have this be a consistently avaialble storage option for my iPhone, used in this configuration.
Thanks.
iPhone 6s, iOS 15