Air Turn PED doesn't connect after update

[SWu]

Hello,
I've problems to connect the airturn Ped with my Bandhelper App after i updated the PED to v1.3.0 6C44. Even in the Ipad's (new Ipad Pro 2017) Bluetoth settings the PED only appears when switching it to mode 2 - 6 it seems that the mode 1 doesn't work (same in the AirTurn manage App).
Is there a chance to re install the firmware update or to switch back to the older one?
Any help??
Thanks a lot!
greetings,
SWu

[arlo]

What exactly are you doing to connect it, and what do you see when you do that?