Yep, we can preset GPS time fields in sys.txt or sys_pc.txt to avoid licenses expired, if just want to testing or modify skins, simulate navigation... etc.
but when this device had obtain GPS signal, it will retrieve real time data too, then the program will been terminal.

btw,the igo version 9.8.0.xxxxxx especially pc ver. didn't leak cr**k on the web, so it load Taiwan or China map sets only,
these version should useless for you?