For over-the-air updates, here are the conditions that must be met to update iOS: You must have a fast Wi-Fi connection; you cannot update over cellular data unless you have a phone that supports 5G (series 12, 13, 14, 15, 16, 16e, 17 and SE 3rd edition) and you have a 5G connection You cannot update using an iPhone personal hotspot

The battery will gradually lose capacity, and is rated to remain above 80% capacity (that's total capacity, not charge level) for 500 full charge cycles for an iPhone 14 or earlier (1,000 for an iPhone 15 or later and an iPad).

iPhone 12/13/14 系列标配了 USB-C 转 Lightning 的快充线，iPhone 15/16/17 标配了 USB-C to USB-C 的充电线，但都没有充电头，需要自己买。 网上说的祖传五福一安是指 5V1A 的充电头，在 iPhone 11 和之前标配，随后就再也不配了，官网还可以买到。

iPhone 16 Pro Max 息屏实测功率依然是 27W 左右，和上一代 iPhone 15 Pro Max 差不多，但今年 iPhone 16 系列理论功率是 45W，在使用支持 15V 档位的充电器时，会优化选择该档位进行充电，高负载时会根据情况提升实时充电功率，能在 33W 左右维持一会，偶尔也能看到跳到 38W~39W，但基本上转瞬即逝。

Clean Up feature is only available on iPhone 15 pro, iPhone 15 pro max, iPhone 16, iPhone 16 pro, iPhone 16 pro max, iPad with m1 chip or higher and macs with m1 chip or higher.

一、iPhone 15 的充电协议、充电接口和功率 iPhone 15 和 iPhone 8 之后的 iPhone 机型完全一样，都是使用的 USB-PD 快充协议。

iPhone 14 Pro and 15 Pro Cases i have an iPhone 14 Pro and am wonder if I can use an iPhone 15 Pro case on it since the new phone has a few differences.

iphone突然无服务，这种故障问题在维修界经常遇到，它的故障原因和解决方法： 一、苹果ios系统与安装的APP发生冲突导致，解决方法：尝试强制重启： 1、8代以上的重启发方法：按一下音量+，再按一下音量减，然后长按电源键直到出现苹果logo后松手即可。

If you have an iPhone 15 series iPhone you can use it to charge an older lightening port iPhone (you would need an USB-C to Lightening cable. I think it can also charge another iPhone 15 series in certain situations.

iPhone 15 Pro与15相比，屏幕采用120Hz高刷，日常软件滑动更加流畅，内存多了2G，后台运行软件更多，拍照多了长焦拍远景清晰度更高，并且采用钛金属中框，更耐摔更坚固，这次Pro重量也轻多了。