ESP8266 (NodeMCU and Wemos D1 mini) won't boot or upload with particular devices

Development Tools IDE 1.x
7

BJHenry:
GPIO2 should be tied pulled up and GPIO15 should be pulled down when the ESP8266 is booting.
Source.

BJHenry:
GPIO2 should be tied pulled up and GPIO15 should be pulled down when the ESP8266 is booting.

Thanks - I did not know any of that. So I've accidentally used 2 of the 3 pins that require "special handling". If I change the pins to use 4, 5, 12, 13 or 14 then will that solve the issue?