Nokia 1100
On my screen only "contact service is display'

Respected Sir,

i'm sri Rajesh kumar jena from orissa has got a problem on my nokia 1100 phone.sir my phone was slipped from my hand then it didnot open only a short msg that is "contact sevice" is display.i took my phone to care but they can't solve this.sir plz solve my problem for which i'll be grateful to u.