[Resolved]  Samsung Galaxy S2 — against samsung care

Address:

Jajpur, Odisha

when i go for upgrade my s2 to android 2.3 to 4 they upgrade it, after 1 hour when i receive a call the phone gone dead.before upgrade i ask them is there any problem after upgrade?they said it is their own risk ,but after dead they said it is your risk and the mother board will change.i said ok i will repair,when i gave my original bill and when i went to care after six days they opened my set and said this is water damage.what is this?the first day they said dead after four days is it gone to water damage?how is it possible.these days my set was there.i think they changed my board .resolve my problem and i want my set at on condition.other wise i will case in consumer in the name of samsung and give it a forgery case to media.