Hey Claudia @Cloudydays93!
I had the g5 for over a year (recently upgraded to the g6) and it was an absolute life-changer for me; I know the signal loss problems can be super frustrating but don’t give up!! I’ve got a couple tips.
First of all–if it’s your first day of a new sensor, you may experience more signal loss/sensor error than usual, although I rarely had any serious issues with this. My general rule is to ignore the signal loss for about 12 hours after changing the site, and usually it resolves itself after that. (Maybe not the best technical advice lol, but it tends to work.)
If it’s been a day or longer since you inserted the sensor, you can try some troubleshooting techniques. Here are a few of my go-to techniques (in no particular order): soft restart (turn the phone off and back on again), hard restart (the steps for this one depend on what type of iPhone you have but you can find it on Google pretty easily), turn Bluetooth off and back on again, and if none of those work, try deleting and redownloading the app. I’ve found that one of those steps always fixes any connectivity issues that I’ve had. If none of that works, then it’s time to call the Dexcom tech support line (their number is in the app) and they’ll help you figure it out from there.
Good luck! Feel free to message me if you have any other questions