Upgrade Procedure from WellBilling HA 1.5.0 to WellBilling HA 1.5.0(P070502) Step 1: Unzip 6600ha_v150(P070502).zip Procedure: http://xxx.xxx.xxx.xxx:10087 login user: xxxx login password: xxxx Upgrade the software (Control > Upgrade) -file name: billing.bin -file name: wwwroot.bin -file name: resin.bin -file name: osadmin.bin -file name: resin.bin Click "Upload" button: Display: billing.bin---->Successfully wwwroot.bin---->Successfully resin.bin---->Successfully osadmin.bin -----> Successfully Click "Control > System > "Restart" WellBilling 6600 HA (After upgraded, please restart WellBilling 6600 HA)