phonebs wrote:

Did you upgrade to Android 10 . Is the Call Echo still there on Android 10 ?

Hello, we will announce the notify if it can be upgrade.

On the official website  https://store.blackview.hk/en/buy/bv9900pro say: Newly Updated: BV9900 Pro is Android 10.0 Now!
It shows that new phones are sold with Android 10. Why do you state to Not upgrade to Android 10 because it is not stable?

The issue I was having wasn't resolved after a tech person looked at the phone, so I have since sent it back to where it was purchased from and got a replacement, the new unit doesn't have the issue and all functions as normal, so was a faulty unit not a setting.