Any way to downgrade to iOS 13.4.1 from 13.5.1 on iPhone 11?

[Fireballer 2,383]

Im trying to get a glocose meter app working properly. Tech support for the meter manufacturer told me they dont have a patch for 13.5.1 yet. The lady at Apple support told me a factory reset would take it back, but it installed 13.5.1 again.  Ive seen a few jailbreak hacks on the interwebs, but thats not an option.  Anyone ever actually revert to a previous version without too much headache? 

[edjr 5,567]

No. A factory reset keeps the iOS

[Fireballer 2,383]

2 minutes ago, edjr said:

No. A factory reset keeps the iOS

So much for the "Senior Advisor" I spoke to at Apple.

[edjr 5,567]

13 minutes ago, Fireballer said:

So much for the "Senior Advisor" I spoke to at Apple.

Yeah, they ain't so bright. often to referred to as "Geniuses" 

 

if you buy a new phone, it likely won't have 13.5 (when it was made it was probably on 13.4 )

[Hardcore troubadour 12,650]

Every time I do one of those upgrades I regret it. 

[edjr 5,567]

4 minutes ago, Hardcore troubadour said:

Every time I do one of those upgrades I regret it. 

Always best to wait. I have to upgrade asap for testing for work.