i can confirm this does work for joelz rom Charmeleon. i am running it and my hotspot is functional.i cleared cache and dalvik in recovery. rebooted still didnt work. so i used root explorer went to data/dalvik cache. select all deleted all items in that folder and rebooted worked after that. typing on my laptop with it now.
roms confirmed working on.
viper Rom 1.2.1
below quoted form aamikam from here
This is one of the most simple and quick hack u ever need to do... i tested it with and without a full wipe... it never failed.
open your build.prop and add anywhere in it the following line:
then reboot and u should be good to tether.
i tested it on a fully rooted rom with unsecured boot... so feel free to post feedback and let me know how it works out.
this is something i noticed in my ics mikvigrin rom, only there it didnt work, but here it does.
i think someone used this in the evo4g in the past... but not 100% sure if its true or not and not sure who.
flashable zips made by smw6180 attached below.