Visit https://taig9.com/12.4/ using safari browser.
Find Install Tiqu button and tap on it.
Tap Allow as shown in the image.
Go to Settings --> Profile Downloaded
Tap on Install button in the top right corner.
Now you have successfully installed Tiqu
You can install your favourite jailbreak apps, hacked games and tweaks from Taig Dedao.
Downgrade iOS with TaigOne iOS Downgrader.
You can get latest iOS beta versions without Apple developer account from TaigOne beta installer.