After inserting micro sd card you have to boot up to android first. Fortmat it while in android os so that you will gain access to it later as you as you swap back and forth from windows to android. Had to delete everything i had already saved in the card. Pretty annoying
I have a C5J6 with Mirek Lollipop V6 ROM and no problem with Android or Windows. Fully functional and can be ejected and replaced.
Also be careful on where to look for external storage it may not be shown by default in Android. On my tablet sometimes I have to go to root and back up to get to sdcard1.