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1. Download all the files from SalesForce customer portal required for the SBC installation or upgrade. To know more on how to download files from Salesforce, refer to Downloading the Software from Salesforcethe Ribbon Support Portal
2. Untar the Firmware package to get the bmc5X00_v<Build_Number>-R0.rom file. Refer to the latest SBC Core release notes for information on latest BMC package details.

3. Download the calculator application (.zip) file that matches the version of  your computer operating system.

4. Unzip the calculator application file to a folder in your local computer.

5. Launch the "Checksums calculator" application from this folder. (The Checksums "hash" calculator name is different depending on your operating system).

   Note
   These images are for example purposes only, and may not reflect the most current release versions.

   Caption
   0 Figure 1 Launching Hash Calculator

6. Using the Checksums calculator, browse and select the Sonus bmc5X00_xxxx.rom file (where xxxx is the file version).

   Caption
   0 Figure 1 Browsing BMC rom file

7. Select the "Hash function" md5.

   Caption
   0 Figure 1 Selecting md5 Function

8. Click Calculate. This extracts the checksum from the .rom file. A hexadecimal value appears in the Checksum text box.

   Caption
   0 Figure 1 Calculating Checksum from ROM file

9. Using a text editor, browse and open the bmc5X00_xxxx.rom.md5sum file (where xxxx is the file version). This file contains a hexadecimal checksum value.

   Caption
   0 Figure 1 Opening BMC md5sum in Notepad

10. Copy and paste the contents of this file into the "Original checksum" box.

    Caption
    0 Figure 1 Copying and Pasting the checksum

11. Click Compare.

    Caption
    0 Figure 1 Comparing Checksums

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