How to get the unlock code prompt on AT&T Nighthawk MR1100

Guys, you can keep posting that link to AT&T ad nauseum.  IT'S NEVER GOING TO WORK FOR NIGHTHAWKS PURCHASED FROM OTR MOBILE. 

According to AT&T, the numbers associated with those devices belonged to TELEPHONES and should never have been associated with hotspots.  AT&T WILL NOT UNLOCK THEM.

OTR Mobile WILL NOT UNLOCK THEM.

Netgear WILL NOT UNLOCK THEM.

As far as I know, your choices are limited to dc-unlocker and some other company that purports to provide unlock codes for these devices.

I'm not sure what dc-unlocker is, but I found posts elsewhere that it's a group in Lithuania.  To use them you have to go through some process of getting "credits", possibly some cyber currency, and whatever you give them is GONE whether they provide you with a successful unlock or not.  There are LOTS of posts in various places from angry, frustrated people that WEREN'T successful getting unlocked by dc-unlocker.  Others HAVE been successful.  I haven't tried to unlock mine yet so I don't know if dc-unlocker is a total scam, a reliable company, or something in between.