Zn5 can't use mpkg software temporarily, and it hasn't been cracked yet. There will be an error when the mobile phone decompresses large files. Generally, it will be decompressed on the computer and then put into the mobile phone. After brushing, you should not need authorized software. The software that the mobile phone has authorized to install by default. Maybe you downloaded java for Nokia phones. Why do you have to sign the qq version? Isn't it good to have no signature?