So I just got a QiYi Square-1 for my birthday back in January and I had not gotten into much until recently. I decided to work with it more and I even took it apart to lube and tension it. After that I noticed that my Square-1 became a bit looser after a few solves. I noticed to screw was unscrewed just a little bit. I ignored it and I kept solving and it had not gone any looser. I do not think it is a stripped core and I have even tried to reduce friction between to screw to help it but it didn't work. Please help!!!
The most common problem with the QiYi Square-1 is a stripped core. You can fix this by buying a locknut for the screw, buying a replacement core, or supergluing the screw to the core once you have it at a good tension.
If it is not a stripped core, then I do not know what it is.
