This item ships expedited and same day. If you need to upgrade your Matrix 1000's OS, but it also has some issues with the built in patches (anything from wrong sounds to corrupted sounds or even missing sounds) there is a good chance you also need the Patch IC replaced. The chips used in the Matrix 1000 for the patch storage are known to have a high failure rate and it is very common to need this chip replaced as well. We have independently verified the patch memory of over a dozen Matrix 1000's to confidently know which is the golden reference of correct patch memory, so rest assured you will have 100% correct and original patches for good with this upgrade kit. 30 Day free returns. 1 Year warranty.