Hi Apiwatc & Aekhong

Finally i managed to get my 1490T working with 3.00th map+jcv, i decide to choose option 1. to restore to 4.40 compare the files with original backup, remove & replace files that are different except for "GarminDevice.xml" then downgrade to 3.00 according to the guide, so far so good and next does the FM Traffic works here in thailand ?

Thank you all for great advice :-)