I bought f660 zte routers two times from a network equipment supplier and he told me that this f660 model have 1x1000mbps port and 3x 100mbps ports. these days I realised that the supplier sent me in the first trance all the f660 routers with the V2.30.20P4T3S software version and in the second trance with the software version V2.30.20P6XXX. all the routers with the software version with "P4" have LAN1 port at 1000mpbs and LAN2,3and 4 have 100mbps and all the routers with software version with "P6" have all lan ports at 100mbps. do you have any ideea how can I save the software firmware with P4 to my computer and to upgrade the ones with "P6" with the P4 firmware from my pc? thanks