nrf24l01's problem

Using the I devo 7e, I enjoyed very pleasant to very far away H8 MINI.
Recently been successfully jjrc1000 the purchase DEVO7e binding was tested.
Use protocol is the V202.
There's a problem. jj1000 is 10m only good maneuver impossible phenomenon occurs also fell.
Whether the cause of this problem can be a mistake of soldering to devo7e the nrf24l01
Or if there are other problems in that possibility?

There was a recent discussion on RCGroups about members having several jj1000's that would randomly drop out and most of the time the quad was close to the tx and it was dropping out using none Deviated transmitters as well as ones using the NRF module so the everybody seems to think its not a tx issue its something to do with the jj1000..a antenna mod might help you could drill a hole in the top and stick the antenna thru it to see if it helps.I got lucky when i ordered mine and got the rare Green/Red led X-mas version ,at least that's what everybody is calling it and it does well with no drop outs unless very far from tx..You can read more about the drop outs here... www.rcgroups.com/forums/showthread.php?t=2163857&page=211