In recent days, I found that novices will ask where to apply for a certificate and how to sign it. I will explain it in detail. Don't laugh when an old bird writes a treasure book for the first time.

The first step: go to the website to apply for a certificate. When you press *#06# in the standby state of the mobile phone, the number of 15 will appear, which is the serial number (IMEI).

Then log in to the Avatar Signature Center (,enter your IMEI code, apply, and the certificate will come down soon.

The second step is to download the certificate after 5: 30 every day.

The third step, not very clear, can look at the signature tutorial.

Step 4, download the signature tool, which is available on the homepage of the signature center. (It is also described in the tutorial)

Step 5, sign the software and prepare the software that needs to be loaded into the mobile phone. Then click Sign. Only (. Sis) files can be signed. If the software is (. Sisx), try changing the suffix to (. sis)。 Nothing else.

This way, you can sign the software you want to sign. Originally, I wanted to upload more pictures, which is more intuitive, but I don't know how to illustrate them after reading them, so forget it. I think this should be very clear.