If your smartphone is based on the Symbian platform, then sooner or later you will be faced with the fact that you will not be able to install the downloaded application. The message "The certificate has expired" will appear on the screen. To resolve this issue, you need to certify your application.
Instructions
Step 1
Turn on your smartphone. Go to the "Menu" section and go to "Settings". Select Application Manager and turn off certificate checking. Try to install the program, if that did not help, then proceed with obtaining a security certificate for this application. In this case, leave the check disabled. Otherwise, you may have some difficulties.
Step 2
Launch your smartphone's browser. It is advisable to use UCWEB, which will allow you to safely save the required certificate in the phone's memory, while other browsers can launch it, which is undesirable. In this regard, first install the recommended browser on your smartphone or download and run the s603rdSigner program.
Step 3
Load the website https://cer.s603rd.cn/ in your browser or run the s603rdSigner application. Rewrite the IMEI code of your device in the appropriate line. To determine this value, dial * # 06 # on the phone or remove the battery and find these numbers on the label under it. The code must be 15 numbers. Specify it, enter a verification number and click the Submit button. Thus, you will send a request for certification of the application.
Step 4
Go back to the specified site after about 12 hours and re-enter the IMEI code. If, after clicking the Submit button, a file for downloading appears, then download it to your smartphone. Run this utility, which will allow you to certify the application.
Step 5
Follow the same procedure using a personal computer. After you download the certificate, connect your smartphone to your PC and copy it to the device memory. Run and install the utility. Try installing an app that required certification. If you have done everything correctly, then the installation will go without problems.
