I was purchased Sony Ericsson C 510 around January 2010 and after use 6 months ... i have to face first problem that key pad was not working properly. when i went to Sony cervices center at Dwarka, Sec-12. They told me that I will have to paid 1600. INR for this problem and i have paid for that even key pad problem has shortout but hanging problem... shutdown problem.. ect.. coming on... and after paid 1600 rs ... last week i return my mobile 3rd time .. after repair... I am very disapointed by the your services provied by for sony and i never trust the services you are providing.. read full review »