If you look on the front of the Cricket forum you will notice a sticky that gives you guides on this. The answer to your question is yes, you can. Verizon phones are probably the easiest to do a basic or full flash on. Just follow that sticky.
Hopefully the next time you ask a question on here you will do a bit more searching so it is easier for merabers who do search to find a thread that is valuable instead of ones like this.