Gonna quote most of SteelH's [How To] post opener:
This reference guide is to tell you what to edit to enable MMS over WiFi for the EVO 4G LTE in Message+CRC_2.apk. It is not an all-inclusive how-to on adb, decompiling/recompiling apks, etc. There are already several very good sources right here on XDA for that information.
Decompile Message+CRC_2.apk and look for com\android\mms\MmsApp.smali:
For the convenience of the community, I have attached 2 zips (Odex & Deodex - v. 1.13.651.1) with the modifications already in place. Also includes 'Zero Compression MMS' and 'Blocked & Secure Inboxes.' Thanks for making it flashable Freeza!
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