Hi, I bought BV8000 Pro two days ago and i'm using it in UK with LYCAMOBILE network. I am not able to connect to mobile data network. I've tried 4G and 3G both and none of them work. I am guessing LYCA mobile's bands are not compatible with this phone. But, even if want to switch, i am not able to figure out which other network provider in UK is compatible with this phone. EE, O2, Vodafone, Lebara... Which one should i use?

It's not about the bands, but about the APN settings, provided by your carrier, that you have to insert into your device's settings.
Contact your carrier for more infos about it

Hello,

I tried an EE data sim which worked fine 4G.
Currently using 2x O2 PAYG sims which also work.