Details are as follows:
1. If you usually back up the software on your mobile phone in iTunes, you can complete the installation of the old qq by restoring the backup.
2. Or install it by downloading and saving the old version of qq before iTunes.
3. Then connect the iPhone to iTunes, and then install qq on the old software.
4. In some other iphone applications, some software updates will be slow. If you find the old qq again, you can install and download it.
Extended data:
QQ, short for Tencent QQ, is an Internet-based instant messaging (IM) software developed by Tencent. At present, QQ has covered many mainstream platforms such as Microsoft Windows, OS X, Android, iOS and Windows Phone. Its symbol is a little penguin wearing a red scarf.
Tencent QQ supports online chat, video call, point-to-point breakpoint continuation, * * * file sharing, network hard disk, custom panel, QQ mailbox and other functions, and can connect various communication terminals.
On 20 17 1.5, Tencent QQ and Midea Group formally signed a strategic cooperation agreement in Shenzhen, and the two parties will cooperate with each other to realize the connection, dialogue and remote control of home appliances based on IP authorization and IOT cloud technology. The first step of cooperation between the two parties is to jointly launch a number of smart home appliances based on QQfamily IP authorization and Tencent IOT cloud technology.
References:
Baidu encyclopedia -QQ