A filial girl who painted a smart phone manual for her old father has drawn much attention and received many praises after the images were posted online.

The girl in Xining city, capital of northwest China's Qinghai province, uses the colorful hand-drawn software icons to present the detailed usage of the smart phone.

She gives detailed instructions for the functions of the phone, from turning it on to unlocking. "You can record the sound of my mother when she is angry in daily life," a sentence was written in the recording function of phone. At the end of the manual, the daughter warmly reminds her father to protect eyes.

Mr. Chen, named 'never to look back' online, posted his younger sister's hand-painted manuals in his We Chat circle. "My father bought a smart-phone recently, but he was old and did not know how to use it. I was busy at work every day and ignored the thing. Fortunately I have such an attentive sister who spent a long time drawing a practical manual. Her carefulness and thoughtfulness made me ashamed and I need self-examination," he said.