can anyone sugest a good mod chip that will fix a bad flash

A bad flash dosnt require a whole new chip. You mean your chip's busted?

What type of bad flash ??

if its just a modchip bad flash, you need a programmer for that chip (or a friend who will let you use his xbox / chip and how swap it.

if its a tsdop flash you need a 29 pin chip to reflash it, or you can install (IIRC) any modchip and boot of the LPC, but you wont be able to use LIVE! unless you flash a bank with a retail bios.

Well it was a bad tsop flash
now I need a modchip to fix it all i want is it to work again il be using the modchip not trying to fix the tsop... Sorry for not clearing that up thanks for the help everyone.. . Would the new xenium fix it or any other sugestions.

O and i dont care for using live... Still got halo muhahaha...,

You should be able to fit any modchip, but I am not a TSOP expert, I would go and check oout some of the posts in the tsop section down below