Omnis S2 Connecting problem

I REQUEST A REACTION BY E-MAIL, OR VIA THIS FORUM.

I live in Europe, so please respond first with a battle plan I can try, before you ask me to call (and spend my money on a long, long-distance call).

Previous questions by e-mail remained unanswered.

I can't connect my Omni S2 to my router: ZTE ZXHN H369A.

When connected to power:
- Amber led in fronts starts flashing a couple of times and then turns solid for a moment.
- Then the amber light goes off and the white led at the back starts blinking fast.
- After a while, the led at back goes off and the white led at front goes on a moment.
- Then the Amber light starts flashing again...
It does this over and over again.

I can do nothing tot stop this repetition/loup.
- not holding the wifi-setupbutton,
- not inserting a USB to update,
- not connecting it to an audiosource with an aux-kabel
(sound builds op when amber light in front is on, but stops when white led start flashing)

Didn't receive a suggestions to my earlier request.