Quote Originally Posted by sabu386 View Post
Removed .unl files and renamed img file to gmapsupp.img on 256 mb micro sd blue chart and g2 4 gb micro sd card. I have a 1 gb and a 2 gb coming as the 4 gb may be unreadable for this unit
There is no problem with 4Gb (and even 8Gb-16Gb) on the latest SW. But 4Gb is limitation for gmapsupp.img only!