The thing with older iPhones, running new iOSes, is that they’re intentionally slowed down (by the software) or as I’d like to call it, underclocked. That also could render them useless, even with new iOS, and even if there were removable batteries.
The intentional slowdown was directly related to battery life. They got sued over it. But if you put in a new battery, performance returns to previous levels.
Apple even tells you in your battery info settings page whether you are running with “Peak Performance Capability”.
The thing with older iPhones, running new iOSes, is that they’re intentionally slowed down (by the software) or as I’d like to call it, underclocked. That also could render them useless, even with new iOS, and even if there were removable batteries.
The intentional slowdown was directly related to battery life. They got sued over it. But if you put in a new battery, performance returns to previous levels.
Apple even tells you in your battery info settings page whether you are running with “Peak Performance Capability”.