I bought Samsung Corby Pro mobile last July for 9900 & after 11 months it started hanging very often. I took it to the nearest customer service, they said it needs software updating & motherboard to be replaced.
I was asked to pay 4500 for the service which cannot be affordable. Advised not to invest on high priced mobile phones, anyway it gives problem soon after warranty period. Any branded mobile has the same problem, the more the features less is durability.
Please check out before buying.