As per subject, I removed the original MicroSD, wrote FW v1.4 onto a 32GB card and put the original in the RG350 package for safe keeping.
The factory FW had a version of Quake 2, which appeared to run OK.
The title of the app appeared to have non (or high) ASCII characters, so I've no idea how I'd go about putting this back onto the 1.4 FW.
Which OPK files, etc. would I need to get this up and running again?