Airtel free gprs edge at any balance

Hello guys
finally i got a new
trick.its only for s60v3 and 5 phones.save 30 paisa when u exit the
operamini...
AT HIGH BALANCE,
using any handler or modded
application with rip trick a!rtel deducts 30 paisa
when u exit the application.
Here is the trick:
1.Start ur fav modded operamini or
if u don't have ask me..
2.Surf n download as much as u can
then minimize the operamini..Don't
exit
3.Now goto settings and change the
network from GSM to UMTS
4.then go and exit the runnning
operamini
and after exiting the operamini
again change the network mode
from UMTS to GSM
5.then check ur balance it will as it is
This trick is purely invented by me...