USB does not work in a 411UAHR with power injector for usb

Hardware MikroTik hardware general
1

We have a new 411UAHR, and wont recognize the usb port
[admin@MikroTik] /system resource usb> print

DEVICE VENDOR NAME SPEED

0 2:1 RB400 EHCI 480 Mbps
1 1:1 RB400 OHCI 12 Mbps

[admin@MikroTik] /port> print
Flags: I - inactive

NAME CHANNELS USED-BY BAUD-RAT

0 serial0 1 auto

we are connecting a sony ericsson md300 with a 5volt (5.23) usb power injector
routeros 4.5
we ahve also tried a ZTE mf100 usb modem and nothing
Please help
Thank´s in advanced

2

Does this modem worked before ?

I have this and I wish to integer with Mikrotik.

3

Yes I work with it, all the time.