How to stabilize the 3G and HSDPA networks in android devices

oke...finally I can posting in my blog again...

your network is not stable, i have trick to stabilize the network in android device
in the first type *#*#4636#*#*



and then you will in testing mode
after that select phone information
select option, and click select radio band
in here you select JAPAN Band
if succesfull will appear the words "set[JAPAN Band] Succesfull"
select oke...
your network will stable in 3G and HSDPA, but its depending on your area network, if your area support the network is very good, but if your area not support is not useless