How do we know he's fixed the problem of the remote control firmware phantom 3 to upgrade safely? Thank you.

If you have not upgraded the firmware to v1.8, I would NOT.  Stay with v1.6.

Could you clarify what Phantom model you have? To whom do you mean by "he"?

Sorry: this is a translation problem because I d'ont speak English. The problem is reported long time and by many people. Almost everyone knows the subject firmaware 1.8 remote control. My question is how we're going to find out that it is resolved to update without fear. Thank you.

Anybody knows how to downgrade the RC to V1.6.0? I read that this has helped a lot of people with their current problems.

Yes, of course: you have to hold down the academy button for more than 3 seconds and a screen opens for that. It works perfectly with the phantom 3 (I did it). See the video:

idplabs Posted at 2016-11-11 15:57
Yes, of course: you have to hold down the academy button for more than 3 seconds and a screen opens  ...

Thanks very much you help me more than all DJI TEAM TOGETHER...

THANKS DJI FOR NOTHING....