Does the BV9800 Pro Walkie Talkie function require a cellular data signal or Wi-Fi to function?
What is the range without any data signal to communicate with other walkie talkies?
Is the frequency choice programmable with many options?

Thank you!

The latest version of the ROM? That's what it seems that you meant to say.

Blackview Administrators, why is there no newer update for the ROM on these BV9500 phones?  Mine is 2019320, and there should apparently be a 20190517 available apparently, but when I check for updates, it says my phone is up to date.  I have had a software problem with the phone microphone, i belie...

I also have speaker problems with my BV9500.  They were incredibly loud when I first purchased the phone.  So loud that I believe it caused destruction of one of the speakers very quickly.  After that, I had to squeeze the back of the phone very firmly in my hands while holding the sides, and the 2n...

This problem happens often when my wife calls me using speakerphone on her iPhone.  When she turns off, I hear no more echo on my Blackview.  I've never had anyone on the other end of a conversation tell me this about by BV9500, no echo, as I almost ALWAYS have to use speakerphone or headphones/mic ...

Is it a possibility that this phone will have extensive USA and international frequency bands similar to or better than the BV9500? I found that the BV9600 was not an appealing upgrade for the money due to the fact that the 9500 has a much more impressive list of compatible frequency bands, ALMOST a...