I found a new easier way of extending the G6 sensor. I do it all on my iPhone. I use my Tslim X2 as my other receiver and it just follows along. No need to do anything with it.
Wait until your sensor expires.
-Start session and choose NO CODE
-Set timer for 15 minutes and let session ‘warm up’ for the 15 minutes.
-Stop session
-Start session WITH the code of the current sensor you’re wearing.
-That’s it! It will take 2 hours to do its thing! You will see where the session expiration date resets in 10 days after the 2 hours.