@DmxPilot, hi, version 2.0 doesn't ring a bell (old version !)
Update link
Upload files for free - mod-45 Spark 4.1.15 november from I.apk - Uploadfiles.io
Del old version, del dji folder on phone or tablet.
Set phone /tablet in airplane mode
Install this version, sign in with name A, password B
after install, close app.
Set phone/table oninternet, start app, go right above menu, go to download offline Here maps.
close app again.
You don't need internet any more.
Start RC,start Spark, wait untill connection green light on Rc, now put your OTG cable into Rc, Start app.
Check settings, and Fly.
Now you have FCC and Mavic Flightmodes. I hope this help.
Check also Brett's superpatcher (
brett8883/DJI_Super-Patcher)