You need a laptop with WiFi connection and the J2534 Box. Put away the Maxisys tablet don't needed this time. Install the MaxiSYS PC Suite. Plug the USB cable between the J2435 Box and laptop. Now connect the  J2435 Box  to the vehicle OBDll port. Open internet explorer go to  https://www.acdelcotds.com/subscriptions  subscribe for 2 years $40 good for one VIN only. Download and install their software. From there follow the instruction on the site to re-flash  or reprogram the module or modules.