RC signal lost

[Jagos]

Hello
Please HELP. This is my second Phantom 3 Standard with same problem. Loosing RC signal after 20 meters. I try to reconnect but dos't help. I can not downgrade firmware, it says

Product: Phantom 3 Standard
Current Version: 1.6.80
GET FIRMWARE VERSION FAILED
Select firmware version
None

 

[rellinb]

Hello
Please HELP. This is my second Phantom 3 Standard with same problem. Loosing RC signal after 20 meters. I try to reconnect but dos't help. I can not downgrade firmware, it says

Product: Phantom 3 Standard
Current Version: 1.6.80
GET FIRMWARE VERSION FAILED
Select firmware version
None

See this thread: (After 1.6.8 update) Phantom 3S Weak RC signal problem SOLVED!!!