ZTE MF637 not detected as mass storage device

[thetriggerfinger]

i've just unlocked my zte mf637 then tested on two pcs.
1 - already had the join air software installed and connected ok.
2 - clean pc - no connection softare; win 7 installs drivers for usb composite device and tries to install zte modem drivers (unsuccessfully).
the device is not seen as a storage device (as originally was).
any idea why?

thanks!

[Vincentas]

Could you try to detect it by dc-unlocker and copy here what is detected?
Try to install drivers manually.
Maybe you have used enable diagnostic port function in dc-unlocker software?

[thetriggerfinger]

fixed it

fixed it by running
AT+ZCDRUN=9
AT+ZCDRUN=F