HomeCloud Folding Umbrella featuring 12 Reinforced Ribs, Auto Open/Close Functionality, Waterproof Canopy, Comfortable ABS Handle and Superior Wind-Resistant Double-Bone Fiber Frame

The umbrella although looks good and sturdy, is not of good quality at all. After working for just three days, the switch is not working and the umbrella is useless now. I read similar reviews by others but chose to ignore and now got an useless umbrella.

Any idea about the purpose of the string hanging inside the umbrella? I can't seem to keep the umbrella open as there's no pin to hold the umbrella from folding. Please help

Sturdy and love the color!