the mobile phone system upgrade is to upgrade and repair the previous system vulnerabilities. Therefore, the mobile phone needs to be upgraded at intervals, otherwise the system and many software are incompatible, and many garbage in the mobile phone cache will also affect the mobile phone use experience. On January 8, 2019, Apple released the latest IOS 12.1.3 beta 3 system and public beta version for iPhone and iPad users. It was followed by software updates covering almost all Apple products. What about IOS 12.1.3? How to upgrade? Let's share this article with you.
First, briefly review the update time nodes of the previous versions:
On January 8, 2019, ios12.1.3 beta 3 was released with version number 165d5037a20. On December 20, 2018, ios12.1.3 beta 2 was released with version number 16d5032. On December 18, 2018, ios12.1.2 was officially released with version number 16c101. On December 11, 2018, ios12.1.2 beta 1 was released with version number 16d5024a. On December 6, 2018, ios12.1.1 was officially released with version number 16c50
Since the last version was updated, the time interval is nearly 20 days, which is relatively long. So, what has IOS 12.1.3 beta 3 updated? From the upgrade interface, if you update from the previous version, the downloaded installation package is less than 200MB, which belongs to a small version update, as shown in the figure.
IOS 12.1.3 beta 3 upgrade interface
What has been updated in IOS 12.1.3 beta 3?
As a minor version update, ios12.1.3 beta 3 does not bring new functions, mainly to repair bugs and improve stability. From the description of the upgrade interface, it is mainly 2-point upgrade.
Ios12.1.3 beta 3 update list:
Fixed bug to improve stability; Optimize the problem of faster power consumption of equipment and improve endurance. Others, etc.
The version number of IOS 12.1.3 beta 3 is 165d5037a. Although it is a long time since the last version, it has not brought any major updates. It is mainly to repair bugs. It is expected that there will be major changes in the next version.
What are the bugs in IOS 12.1.3 beta 3?
From the experience of simply upgrading the iPhone 7 in Xiaobian's hands, there is almost no difference between IOS 12.1.3 beta 3 and the previous beta 2 version. Most of the previous bugs still exist. For example, some apps with flash back still flash. In addition, the notification center still has the problem that it cannot display completely, and apple music text errors still exist.
As a very small version, it is more detailed, and some bug optimizations and improvements are difficult for users to feel. In addition, there will be some different bugs in different models. Therefore, users who upgrade the beta or public beta version need to be prepared in advance.
How to upgrade IOS 12.1.3 beta 3?
First of all, today's IOS version update is mainly for developers and early adopters who have installed beta or public beta description files. Users of the official version of ios12 can't detect it. What's more, if you need to try to upgrade, there are two main methods: one is to install the ios12 beta description file (recommended, easy to operate), and the other is to upgrade the firmware by brushing ios12.1.3 beta 3 (not recommended, the steps are relatively cumbersome and time-consuming).
Of course, before upgrading, first ensure that your device supports the latest ios12 system. In short, the iPhone needs more than 5S, and the iPad needs more than mini2 devices. The following is a list of ios12 supported models.
Ios12 supported models list
1. Ios12 official version user upgrade method
Since ios12.1.3 beta 3 is a very small version update, users of the official version recommend the next version update. If you have to try to upgrade to the latest beta version, it is recommended to install the ios12 beta version description file. After completion, restart the device and enter settings - General - software update to upgrade online Ota.
Users of the official version can install the description file of the beta version
As for the brush upgrade, you need to use a computer, Download firmware and use iTunes and other tools. The operation is cumbersome and time-consuming. A small version update doesn't feel necessary. I won't introduce it. If you have to brush the machine, refer to the downgrade at the bottom. The method is the same.
2. Developer / test user upgrade method
If you are a developer user or have installed a beta or public beta description file on IOS devices before, you can detect the new version update today and upgrade directly online. The method is as follows:
1. In the IOS device, enter settings - & gt; "General" - & gt; After "software update", you can detect the latest version of IOS 12.1.3 beta 3 beta update. Click "download and install" below, as shown in the figure below.
After that, wait for the upgrade file download to complete the update and upgrade according to the prompt. It should be noted that the upgrade needs to be carried out under the WiFi network, and the power needs to be more than 50% (the power is low, which can be carried out in the charged state). In addition, it is necessary to ensure that the remaining storage space of the IOS device is sufficient.