Logic board swap

I'm probably asking a stupid question, but want to be certain before I go through the effort only to find out there was something I missed.

My current 5 has a few issues (bent frame, faulty camera, cracked screen) that have made it almost unbearable to use. It's running 6.1 and is jailbroken just the way I like it. I just bought a used 5 running 7.x and I thought that rather than losing my current setup, I could swap logic boards and put my sim in the new phone instead. If I do, 1) would that work to maintain functionality, and 2) would I still need to activate the new phone?

I don't mean to be rude, but please don't preach to me about how hard/unnecessary/etc that would be. I have many other reasons that are strongly motivating me to consider doing this in the first place that I'm just not going to get into. I just want to know if its possible, and be aware of any pitfalls that may lie in wait.

Thanks!

 

I'm comfortable fixing my phone. I've done it several times before on previous iPhones and other iDevices. It's not very hard, just takes patience and care.

As for the screen replacement, like I said, there's a lot more to this story. If a simple screen replacement was all it needed, I'd do it. With all the factors I'm considering, it's more cost effective to replace it with a used phone and sell the old one.

Thanks for the input!

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Why even comment if you're going to negatively state the obvious? How does it help anyone?

 

Nice! As I thought to be the case. Just wanted to be sure. Thanks