This process however is very lengthy compared to the process I mentioned above.
On an average getting your Certificate and Key File from either of them will take you around and at least 24 hours to 48 hours (or more).
Still, to make things really easy for you here is a step by step guide I prepared just for you – my good friends and loyal subscribers & visitors!
In this guide I will be using Site 1 as the example site.
Site 2 works the same way compared to Site 1 so one guide should do it even for the newest of newbies.
Step 1: Simply click on any one of the 2 links of the sites I specified. For this guide I am using Site 1 as an example like I told you earlier. After clicking you should be taken to a page for free registration. Here is an image with pointers on what and how to fill up the vacant forms.

Step 2: After filling up the registration form as shown above you will have to submit your registration application. This will show you the message “Registered Successfully” and forward you to the main page. You will now have to click the top right Login Button  and fill the blank fields with your registration info

Step 3: After you successfully fill out the Login Form with the username and password and have clicked the Login button you will be taken to the back-end of your account. While you are logged in and browsing the back-end of your account you will see a button which allows you to apply for a free Certificate and Key for your IMEI. Now click on that “Apply Certificate” button

Step 4: After you click on the orange “Apply Cer” button you will be taken to another blank form where you will have to fill up the info required for acquiring your certificate. It will ask for your Symbian device’s IMEI number, Phone’s maker and Model Number and for your remark. The remark field is simply an extra field so that you can tag this request and write anything relevant that you want to include. You can find your IMEI number by pressing the following combination on your phone’s keypad. The combination to find your IMEI number is: *#06#

Step 5 – After you have submitted your request to acquire your very own Certificate and Key file as shown in step 4, all you have to do is wait for 24 hours to 48 hours (or maybe even 72 hours) and check back to download your generated Certificate and Key. The time taken to have your files ready usually takes a day on average but it can take much longer.

Step 6 – To find out if your files are ready you will have to sign in again on the site. To do this you will have to click on the Login menu as shown below. Once you are logged in simply click on the”My Certificate” menu as shown on the image below. If your files are ready then the “State” message under the “My Certificate” menu will be shown as Normal. If it is anything else but Normal then you will again have to check back after 24 hours or so.

Step 7 – Once your State Message is shown as “Normal” as shown on the image above, it means your Cer file and Key file are ready to be downloaded. All there is left to do is to simply click on the .Cer file once and click on the .Key File once. They are located under the “Operate” header of the table shown below. These 2 files are what you need to Sign your Unsigned Applications, Games or Themes. These 2 files will also eliminate error messages such as “Certificate Expired” or “Unable to Install Protected Application from Unprotected Supplier” on your Symbian device. Once you have the 2 files, click on the “Log Out” link!


FOLLOWING SUPPORTED PHONES
E50, E51, E60, E61, E62, E63, E65, E66, E71, E72, E75, E90, N70, N71, N72, N73, N75, N76, N77, N78, N78, N80, N81, N81 8GB, N82, N85, N86, N95, N95 8GB, N96, N97, N97 Mini, X3, X6 Xpress Music, 5800, 5700, 5500, 5070, 5130, 5200, 5220, 5230, 5300, 5310, 5320, 5530, 5610, 5630, 6020, 6030, 6060, 6070, 6080, 6080b, 6085, 6086, 6101, 6103, 6110, 6111, 6120 Classic, 6121c, 6124c, 6125, 6126, 6131, 6210 Navigator, 6220c, 6230, 6230i, 6233, 6234, 6267, 6280, 6290, 6288, 6300, 6301, 6303c, 6350, 6500c, 6500s, 6555, 6700, 6600 etc and more.