Good day guys, i have found out this information and service menu regarding Samsung related devices:
From the Dialer :
*#0011#
MENU -> press Back
8 (Phone Control)
3 (NAS Control)
5 (Revision Control)
2 Change Revision
2 Release 5 (HSDPA ONLY)
Screen should read, HSDPA ON, HSUPA OFF
MENU ->...