Problem with 128gb verbatim class 10 micro sd

[Jonathan Malan]

Which format is best for my 128gb micro sd card? It's a verbatim class 10. I have had it in my LG G4 and it is giving me problems, I cannot seem to copy or delete anything on it. It is a genuine card and I attempted to run chkdsk on cmd but it says it is exFAT and write protected. The write "lock" on the side of the adapter is off, so that is not the problem and I've used different micro sd adapters and still I have the same problem. I have only had the sd card for about a month and this has only been happening the last week, previously it worked fine. How do I fix this?