During the set up of the software on my new Pro 4 Plus screen, a popup comes on asking me to enter a phone number for Mainline China.  I live in the USA,  How can i get around this problem? Everything else seems to properly set for North America.

If you do a search on here, you will come up with threads on this topic. It happens all the time: https://forum.dji.com/thread-116370-1-1.html

Joe, please connect the RC to a WiFi network, then log into your account, see if it helps. Besides, you can also reset the RC to factory default, then try to set up it again.

Your answers are appreciated, however I am still unable to get past the "Enter Mainland China Telephone number' popup screen.  I've tried, but cannot figure out how to rest the RC to factory specs to start over. The controller tells me it doesn't need updating.  That was done yesterday when I set up the WiFi connection.

Help please!

this is how i did it .............hi guys phantom 4 pro plus  im in uk  i just got mine second hand its about 7 months old but not flown..so i updated software on drone and controler 28.10.17 went out to fly it today but as like  everybody said link phone number to china on deplay so can`t fly.......got back home, powered up controler but not drone,i could now get in settings.and found the general setting.. under maps..it was enable amap (for china mainland) i disable that.... and under that again... calibrate map coordinates (for china mainland) was enabled..again i disable that.. when outside with drone and was able to fly.. hope this helps some of you guys..