I am new to the jtag scene, i have done a lot of reading over the last few days. Long story short my issue is this, i modded mw2 and intended to host lobbies however my kernal is 2.0.8955.0 and when i tried to migrate my offline profile to an online one it says that "there is a system update availible from xbox live. If you decline you will be signed out of xbox live. Is there any way to update this without rendering the jtag into a brick? I did read that you could flash to a newer kernal but i do not have the origonal nand dump it was already jtagged when i bought it.

Thanks!