I had a similar problem with a Sandisk 32GB SD card. I solved it with the Windows management disk. I erased all partitions of the disk and then created a fat32. Initially no drive letter was assigned but then from My Computer, format the drive without problems.
My SD card had this problem after using it for a raspberry pi.
I'm assuming the main concern you have is that charging from the LG 38WK95C-W display is going to damage your MacBook Pro in some way.
This is not something you need to worry about. Having a charging source that provides 60W is really akin to using one of the chargers that ship with the 13" versions of the MacBook Pro on a 15" MacBook Pro. The net result ...
Apple's support documents only list the "Lightning to USB 3 Camera Adapter" as compatible with this process. If you want to be guaranteed that it works - use that adapter.
You can test your old adapter without fear of breaking. If the "Lightning to USB Camera Adapter" works for you, it will be capped at USB 2 speeds, as it doesn't support higher speeds.
I have a scanner that looks exactly the same and works perfectly on Mac.
Essentially this device works like a USB keyboard, and thus requires no special operating system or driver support.
The device is NOT supposed to show up in The Finder sidebar, contrary to other suggestions here.
To test the device, open Notes, TextEdit or similar app - then scan a ...
Most likely lint.
The lightning connector is prone to collecting dust and dirt, which can keep the phone from getting a clean signal from the cable (a faulty or not-to-spec cable can have the same effect). Take a toothpick or anything else that's thin and non-conducting and get that dust bunny out.
Never believe anyone telling you to reboot all devices and ...
The USB ports in the Desktop and monitors don't provide enough power to charge your MacBook. These ports tend to be build "to spec", meaning they output only about 500mA (USB 2.0) or 900mA (USB 3.0). Sometimes PCs have dedicated charging ports (maybe colored yellow) which provide more than 1A (they exceed the official USB specs), but that's still not nearly ...
If you are looking for Modifier remap, in keyboard.prefPane exists a modifier button where you can edit it for external keyboard.
For more advanced ways, you should checkout keyboard Maestro for Macro keys and this answer to figure out what you want to do.