This is Samsung 7 100. I updated system 4.3 today and restored the factory settings. Why is the WeChat calendar downloaded in English? Why is it useless?

According to your description, I suggest you try the following methods:

1. It is recommended that you uninstall and reinstall the software.

2. Try to change to another version.

3. Update the mobile phone system version and then try to install it.

4. If it still can't be used after returning to the factory, other third-party software can be used normally, only this software can't be compatible with the mobile phone system. It is recommended to send the mobile phone to the nearest Samsung service center for testing and further processing. Please click the following link to find out the specific location of Samsung Service Center:.

It is recommended that you apply for "booking to the store" in Samsung official website and enjoy priority maintenance service:/pre-order.

After the appointment is successful, please bring your machine, invoice and warranty card to the service center you reserved on time.

If you have any comments, suggestions and comments, please click: support.samsung.com.cn/survey.