What bugs are fixed in Apple iOS 13.3?
Editor’s note: This article comes from Tencent Technology , author Silicon Valley Analysis Lion.
Although Apple has n’t fixed some of the key issues, Unicom users should still upgrade, because after you update your device, your phone can already support VoLTE. With this feature, users who use Unicom network on iPhone finally There is no need to fall to 3G when making a 4G call.
From the news on December 11, Apple today released the official version of iOS 13.3. From the update point of view, it is mainly to continue to fix system bugs and improve stability. For Unicom users, it is the first time to go. upgraded.
In the official update of iOS 13.3, Apple can allow parents to control their children ’s contacts on the “screen time” of iPhone and iPad. It supports FaceTime, phone and information applications, and the system also supports NFC, USB and lightning interfaces. FIDO2 security key, and also optimized for wireless charging.
The specific updates for iOS 13.3 are as follows:
Added parental controls provide more communication restrictions that limit who your children can contact by phone, FaceTime, or Message;
Parents can manage the contacts displayed on their children ’s devices through their child ’s contact list;
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Create new video clips when trimming videos in Photos;
Added support for NFC, USB and Lightning FIDO in Safari2 Support for applicable security keys;
Fixed the issue that Mail may not be able to download new mail;
Solved the problem that Gmail account cannot delete messages;
Fixed an issue that could cause messages in Exchange accounts to display incorrect characters and send messages repeatedly;
Fixed the issue that the cursor may not move after long pressing the space bar;
Resolved an issue that could cause the screen shots sent via Messages to become blurry;
Fixed the issue that the screenshot after cropping or using “Mark” may not be stored in “Photo”;
Fixed an issue where Voice Memos recordings might not be shared with other audio apps;
Fixed an issue where the missed call flag of the Phone app might not be cleared;
Resolved an issue where the Cellular Data setting might incorrectly appear to be off;
Fixed the issue that “Dark” mode could not be turned off when “Smart Reverse” was enabled;
Resolved an issue where the charging speed of some wireless chargers may be slower than expected;
At present, according to feedback from some developers, in the official version of iOS 13.3, Apple has not improved the device’s battery life. Starting from iOS 13.2, many iPhone users have reported that the upgrade system has gone backwards. Later, Apple released iOS 13.2.2, which exacerbated this problem. More and more users talked about it. The iPhone’s battery life under this system changed. Even worse, the device can power down at least 20% faster than before, which is a rhythm that can’t be used in winter.
Back to this update, although Apple has not fixed some of the key issues, Unicom users should still upgrade, because after you update your device, your phone can already support VoLTE. Users who use China Unicom’s network finally do not need to fall to 3G when making 4G calls.
Since mid-June this year, China Unicom has started the commercial use of VoLTE, but the iPhone has not been in the ranks of support. In addition to the relationship with the operators, there are also some factors of Apple. Now that the official version of iOS 13.3 is released, it is also announced that China Unicom has completed the optimization of iPhone VoLTE.
VoLTE is based onThe OP data transmission technology of the 4G network can provide higher-quality video calls with the help of the 4G network. The jitter rate of the 4G video phone is 70% lower than that of social software. The benefits don’t stop there. If you enable this feature, the call signal will be better, and the voice call quality will be 40% higher than that under 2G and 3G networks (requires both parties to open the call to support it), and the caller ’s phone delay It can also be greatly improved (at least twice as long as the delay under 2G / 3G networks), and its drop rate is close to zero.
Currently, China Unicom ’s VoLTE service is billed on a per-duration basis, which is the same as the existing voice service charging standards, that is, callers are charged 0.27 yuan per minute during busy hours and 0.1 yuan per minute during idle hours. Traffic charges from VoLTE services are free .