MenuForum NavigationForumActivityLoginRegisterForum breadcrumbs - You are here:Support ForumsGeoAstra RTK GNSS Receivers: GeoAstra Y55G RTK/PPP GNSS Android DeviceHow to open Y55G Pen function?Please Login or Register to create posts and topics.How to open Y55G Pen function?GeoAstra Official@jack35 Posts#1 · April 29, 2026, 1:54 pmQuote from GeoAstra Official on April 29, 2026, 1:54 pm Post Reply: How to open Y55G Pen function? Cancel