Nu ja, reiks vakare išbandyt.
Beje, gavau atsakymą iš supporto, gan greitai sureagavo, tai čia toks 
kaip ir respektookas iš jų pusės:

Thank you for your kindly mail and inquiry. Please make sure you enable 
the Bluetooth function on your computer/ notebook. After turning on 
Bluetooth for your computer/ notebook, please scan/ detect pair device 
to matching your M7700B. Meanwhile, please switch on your M7700B to 
match pair device. You may refer to the attached photos.

Since this product is using Windows in-box Bluetooth driver, user do not 
need to install driver manually. Please make sure you have installed 
proper Bluetooth driver for your platform.

If problem still after changing batteries, we suggest you test your 
product with other computer/ notebook to see if the problem still 
happens. If your product cannot work with any computer, we suggest  you 
contact your supplier to arrange further examination.

2017.11.16 10:12, Doxlas rašė:
> Tai ir ant telefono/planšetės galima pabandyt - jų dauguma yra su 
> bluetooth. Man buvo panašiai - po bluetooth driverio atsinaujinimo kompe 
> nustojo veikt HP BT pelė - kompas bandydavo pairintis, bet 
> nepasibaigdavo procesas. Tai supairinau pelę su planšete, veikia - tada 
> aišku buvo kur ieškot kaltų.
> 
> "Nerijus"  wrote in message news:oujf09$djp$2@trimpas.omnitel.net...
> 
> On 2017-11-16 06:35 AM, S.Vyt wrote:
>> Ant kito kompo pabandyciau.
> 
> Ar bent su kitu bliupupo risyveriu. Tuo paciu ir suparinsi per nauja.
> 
> N. M.