Before you start, you need to get your .cer & .key files for your phone.
- Register here to get your .cer & .key files
- After registering, you can login, and request cer
- When you done, download your .cer & .key files to your computer.

Download required tools:
Download HelloOX_V1.04.SiGNED.sis
Download SISContents 1.3.1

Step by step:

• Extract SISContents 1.3.1
• Run extsis.exe
• File – New Package – Empty Package
• Ensure S60 3rd Edition devices checked and let the other unchecked
• File – Open – Choose HelloOX_V1.04.SiGNED.sis
• Tools – Sign package – Key pairs tab – and browse your Cerficiate (.cer) and Private key (.key) file from opda.cn (or other websites)
• Fill the profile name with any name – Add profile
• Back to Package tab – Choose the profile you just created – Add signature
• File – Save as.. to save signed HelloOX

Now, you can install HelloOX in Nokia E90 firmware version 4.00 and your phone should be hacked now.

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written by Ryan Isra \\ tags: download, e90, firmware, nokia