His good work has been noticed, and even though he is not a Party member, he's been added to the hospital's Communist Party of China members' WeChat group, which is aimed at solving problems at the facility.

One of the major problems was the lack of a wireless network.

"Some parents were complaining about spending a lot on mobile data for their children to take online classes," he explained.

"Many patients also rely on their mobile phones to stay connected with the outside world."

Having confirmed that the Wi-Fi was broken, Zheng decided to fix it, even though it was not in his usual area of expertise.

"I have been in the construction business since graduating from middle school and know many people who work in related areas," he said.

With the help of another patient who is a project manager at a local real estate business, Zheng soon formed a professional maintenance group that included workers from China Mobile.

The team completed the network repair work in just three days.