Need help regarding XM 5530

My brother bought this set 2-3 days back.Its having some sort of problem..the problem is with the side button/scroll which locks the keypads and then it also unlocks it.It sometimes doesn't work properly like it locks the keypads but after 2-3 tries of moving it up down it opens up the keypad.Its not smooth,it should work smoothly.Is it like this or the set is having problems?

no i've used this set for several months and button works very smoothly

your mobile maybe fallen down

[quote=", post:, topic:"]

no i’ve used this set for several months and button works very smoothly

your mobile maybe fallen down

[/quote]

Yup …it was having the relay fault.Returned it back to the shopkeeper