found all over amazon for around 10 dollars
I got mine from this seller -http://www.amazon.com/gp/aw/d/B00HHXVJDA/ref=pd_aw_sbs_7?pi=SS115&simLd=1
I am using my note 2 on metropcs gsm (tmobile) MK4 automatically reconnects after signal loss / new tower. HSPDA reconnects as well. You can update after using ma7 to perform unlock.
Replacing the sim board affects the sd slot. The new sd slot requires you push the sd card to the end of its travel and affix with strong tape for it to work. I can access all the files on my sd card with this trick