Got a Sprint Galaxy 2 and want to put a new rom on it but will it hurt the cricket carrier flash?

bobotech

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Dec 22, 2012
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I just got a Galaxy 2 sprint. I am going to get it flashed to Cricket so I can use it. The thing is that I really like Jellybean and want to upgrade to it at my leisure. I'm just worried that doing a custom rom will screw up the flash to cricket's carrier or should that be pretty much untouched?