Just found something interesting!
I've been able to update prl using VPCT ( similar to QPST but for VIA Chipset ) and also ETSMain ( similar to QXDM ) but there's a lot of weird menus
For now, I am trying to disable SIM control.. my goal is to completely disable SIM Card control so I can use this phone just like a regular CDMA phone.
Sorry, I can't post the link here..but you can find VPCT and ETSMain on 4shared.com
FYI : I live in Indonesia which is no 4G LTE network here
Could you please kindly share how to link the phone via VPCT ? Is there any config should be done at phone site ?