Htc p3400i
Mobile problems

MODEL: P3400i AUTO MULTISELECTING

I have purchased HTC Mobile GSM Model: P3400i (sr no: HT834FW07354). In the of month September on 26th, from MANGO stationary Pvt. Ltd. Naupada, Thane (W)-400602. Mumbai

I had given my mobile to HTC service centre at grant road, after one month i.e ysterday only they had given back my mobile but still following problems are appearing in my mobile,

1. Icon selection is continuously flickering.

2. After making all settings (soft/hard resetting has no use).

this problems previously not appearing in the mobile, after servicing of one month this problem are occurred n my mobile. what kind of servicing is this???

Please help me out. I have lots of hopes from HTC company as compared to other mobile company.