1600 with no network.

how to check this model handset network problem HARDWARE OR SOFTWARE
see this video mannul
http://www.sendspace.com/file/k5m236 
1)CHECK AN****A
2)CHECK OR CLEAN AN****A CONNECTOR

3)CHECK PA POWER INPUT WAYS

4)REMOVE PA THEN MAKE JUMBER LIKE THIS PICTURE

AFTER FIX THIS JUMBER!PHONE SHOW SAME NET NO ACCESS PROBLEM?
5)JUST CHANGE RED MARKED RX FILTER OR RESISTER(TX CONTROLL)
LAST TRY TO CHANGE RF IC


ONE THINK UEM OR UPP MAKE NET WORK PROBLEM
65%PROBLEM SOLVED THIS METHODE
20%UEM
15%UPP

FRIENDS PA JUMBER NOT PERMENT SOLUTION CHANGING IS BATTER