I am with Telus and I have had my LG Dare for almost a year now. At first I was really happy with my phone but recently it restarts on it own or just completely shuts off. Also it is very hard to hear people and others have a hard time hearing me. There is no water damage and it hasn't been dropped that many times. If I buy a new phone from somewhere other than the Telus store (because I don't want to spend $200 or more on a new phone) can it still be activated and used with my existing plan?