ZTE No system files!

[The frog]

Hi, Joind yesterday and successfully unlocked a ZTE K 3570-z dongle which was tied to vodafone. BUT being old, never realised I needed to download new files (eg join air) and would need the original files from the dongle to do so! Now my system no longer recognises the dongle. XP doesn't even see it. I downloaded the join air files but have no idea what to do with them. Is there anyway i can download something to rectify this? I guess if there were system files on the PC they would recognise the dongle and start it up.
Thanks

[Gintas]

Hi, Joind yesterday and successfully unlocked a ZTE K 3570-z dongle which was tied to vodafone. BUT being old, never realised I needed to download new files (eg join air) and would need the original files from the dongle to do so! Now my system no longer recognises the dongle. XP doesn't even see it. I downloaded the join air files but have no idea what to do with them. Is there anyway i can download something to rectify this? I guess if there were system files on the PC they would recognise the dongle and start it up.
Thanks

Already answered via Live Chat.
You needed to download original modem connection software. This should install your modems drivers.
If that will not help, try to disable diagnostic port (if you enabled it during unlock process). Check for instructions here: http://www.dc-unlocker.com/forum/showthread.php?t=3217