The easy way to raise the voice of Samsung e250 100% 100

The way I experienced myself and the outcome assured
First we need code and write

*# 9998*8738#

Shows us a list of name check pattern
Choose carefully selected H \ Wtest
3 shows us choices carefully choose Audio settings
18 shows you choose
Choose the old man No. 13 which iis normal2
First increase from 11 to 12 or 13
And down on the chosen Altalt
Instead of level 10
1100
And 11 -
1250
, 12 1650
And 13 -
2300
And 14 -
3200
And after your registration to save Besguet
Try Voice Dial Phone
Congratulations