Guys! I've just soldered RF10 into my old PX5 (GS) and upgraded software from old android 6 into android 10 Hal9k (needed since there was no rf210 option in android 6)
Everything works excellent!!
- Wifi signal is much better now and finally i can connect and use a wifi in my garage (still on old md725)
- bluetooth is on rf210, there is no echo! At last! BT OBD adapter is connecting!!
- android 10 is so much faster and better optimized. Finally i can use google maps
After almost 5 years all issues with the device was solved.
Thank you guys.

You are the best! Im so happy!