(S60 V3 refers to the mobile phone operating system. At present, it is all kinds of mobile phone software supported by this system, commonly known as S60 version).

The third edition of S60 has greatly improved the security, and has stricter regulations on the third-party software installed and running in the system. Special restrictions are imposed on the operation of some software related to mobile phone hardware and software/personal information security (for example, automatic startup of mobile phone startup is one of the restricted functions). Some software will have functional restrictions after installation, such as incoming calls.

In order to realize these "specially restricted" functions, the application must obtain a "signature". In other words, someone should be responsible for the safety of this operation! A program without any signature cannot be installed and run.

Many people ask: where do you put the "certificate"?

In fact, the certificate is not simply where to put it, but to sign the software that needs to be signed. Certificates are not used directly, but packaged into sis software through a special program. The role of the certificate is only to give the program certain rights, such as allowing it to be installed on the mobile phone, or allowing it to start automatically.

Let's not digress too far. Let's stop here. After all, our focus is mainly on the installed software. We are more concerned about whether a software or game is practical. Is there more playability? Let's get down to business at once!

To sign a software, you must have: certificate, signing tool and software.

Certificates applied in this forum can only use the matching signature tools provided by this forum.

I have provided you with a signature tool in the attachment below.

After replying to this post, you can download it! ! And you can see an illustrated tutorial to teach you how to sign.

Next, Little Seven will teach you one of the most popular signature methods.

1. Run the signing tool.

Double-click to run the signature tool v2.2.8.0404.exe.

Wait a few seconds, and a dialog box will pop up, as shown in the following figure:

At the bottom of the dialog box, there is a prompt "Press any key to continue". If we press any key, the dialog box will close automatically. (At this time, a description file will pop up, just close it. )

2. Import license

Next, we find the stored certificate on the computer, right-click its icon and select "Import Certificate (Replace)" in the pop-up menu.

As shown in the figure:

Then a dialog box pops up, wait for a few seconds, and the dialog box will show the following figure:

After the certificate is successfully imported, according to the prompt, we press any key to continue and the dialog box disappears.

3. Sign the software

Now we can find the software that has been stored on the computer and needs to be signed. (unsigned software ends with. SIS)。 Right-click the software icon and select "Sign this file" in the pop-up menu, as shown in the following figure:

A dialog box will pop up and the software is signing. Please wait patiently until the dialog box closes automatically.

When this dialog box closes automatically, a new folder containing a new file ending with will be generated near the original unsigned file. sisx。 This means that you have successfully signed the software.

This SISX file is the signed software, and everyone can install it into their mobile phones.

When other software needs to be signed in the future, the previous steps can be omitted. You can right-click the software to be signed and select "Sign this file".

Generally, mobile phone forums have certificates to download. You can visit bbs.imobile.com.cn.