Thread title is confusing. The subject is the infinity setting, always fragile, getting stuck easily. Only a fresh photography module replacement could solve the problem. If a software update causes the malfunction of the infinity setting, that means it wasn't working properly before the update.
How did you go?
I tried more pics out of curiosity, not of the moon but the stars results posted here. Look at the meta data and it might help you figure out what you need done. While having set ISO manually the brightness is automatic and cant be changed in all these 4 sec shots. I am sure having it as a DNG would greatly help for post editing and a high resolution 34 MP shot for editing on the phone on the go.
I could not attach only one pic as it was too large at 10.26 megs for this forum to handle