mswlogo,

I used the 3500C patch on the PPC6601, and it was good. But
with the Audiovox and Siemens updates I noticed in your new sticky no longer has the old 3500C patch. Do you still have a link to it on XDA developers? I could not find it there.

I want to try it first on my new SX66. I would like to avoid installing the full Siemens update because on my last SX66 BT performance went downhill after the update.