I use 5230, and the eight-door artifact can directly modify the data in the memory, and it needs 19 bit certificate signature to install. It is impossible for an individual to apply for a certificate with 19 permission. Only a certificate with 17 permission can be applied online. I'm sorry to tell you that you can't use eight artifacts without XX mobile phone. In fact, as long as you apply for the certificate of 17 permission, you can crack the mobile phone to a maximum of 20 permissions. Download Cracking Assistant 2.02 from Saipan Forum, sign it, install it, and then run Cracking Assistant. After a series of automatic operations, it will remind you to install a manager, which does not have much effect. Cancel it. After that, you can uninstall the crack assistant. There is a system cracking program in the personal assistant. Run it and select Options-All Patches-Applications, so that eight artifacts can be installed.