Telecom Tianyi SMS Assistant cannot be installed.

First of all, thank you for your support to China Telecom.

According to your description, you can't install Tianyi SMS assistant software provided by Telecom. Please update the software version in time and download the latest version. There may be something wrong with the memory of your mobile phone. Clear the phone memory in time, then restart the phone before downloading and installing.

If you have any other questions, please come to Zhihu Platform or Telecom official website to ask questions, and there will be more professional customer service answers.

If you need to check the bill and pay the phone bill, please go to the online business hall of Anhui Telecom. Wish you a happy life!

I hope my answer will help you, and I hope you can adopt it in time!