modded my xbox and at some point my house was struck by lightening now i have no network card in my xbox. so i have to fix it because i put in a rented games to copy to the hard drive and forgot it inside and it goes to the default menu now whenever i star up my xbox instead of the avalaunche menu

Well youl have to replace your Xbox 1 motherboard if the network port is dead (remember to unlock hard drives correctly & lock on the new mobo).

Also I hope you also bought them rented games as well, or I will be closing this thread if you haven't.

But still it's a very confusing thread I'm not truely sure what your question is. Fixing the network port, or changing Avaluanch?