That’s why you should use genuine battery from Apple, not some cheap 3rd party battery 🙈Installed it on old iPhone 12. Full of small cosmetic and function bugs but the showstopper was havoc it played with 3rd-party-battery charge, which was changing between 100% and <20% in under 30 minutes and then back to 80% after 10 minutes on wireless charger. Gave up and rolled back to 18.5 from DFU mode/restore.