download the EPO.dat file to /data/misc folder. Trying to download the file from MobileUncle Tools menu will 99% fail. will show progress 0. so either download it directly from MediaTek FTP : ftp epo.mediatek.com user: epo_alps pass: same as username (that FTP server is also down 90% of the time) or use the a nice App that bundles that chip EPO file: =com.chxdev.mtgps