[Resolved]  Samsung Mobile D840 — Sliding and battery

Just after 3 months of purchase suddenly I find the problem coupled with sliding system. despite the phone in "on mode", it turned inactive as far as making calls/ receiving was concerned. Horrible experience at Moti nagar service centre. After they changed one plastic part inside the instrument, now the battery problem started. Despite charging for hours, the battery back up with the least usage ( say with 2-3 calls of total 10 ninutes receiving and dialling)only 5-6 hours ( note 3 months old set). The set needs full charging for at least 2 times a day.