update iphone 6 to 15.7.7, any risk the fly app wont work?

[alexjo55]

I have a iphone 6s plus and it works with the fly app, but its on the 12.4.1 version and now it asks me to update to the 15.7.7 version.

Could the 15.7.7 version affect the fly app so i cant use it anymore?

 

[Furlan]

I have a iphone 6s plus and it works with the fly app, but its on the 12.4.1 version and now it asks me to update to the 15.7.7 version.

Could the 15.7.7 version affect the fly app so i cant use it anymore?

You should have no problems I'm using a 6S with OS 15.3.1. Looks like 15.7.7 is as high as your going to go as Apple
no longer supports I Phone 6 and 6S.