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I also want the hacked dash to run on a diffrent bank for my x3
Somebody said this before, you need to understand the differnce between a dashboard and a bios before you go any further. Do a little more reading on tutorials. If you're referring to a hacked BIOS and an original BIOS, all you have to do (to get the orig bios back) is to disable the X3 chip. To load the hacked BIOS, enable the modchip and switch to a bank that you flashed your hacked bios to.