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1) Using HiQnet London Architect v6.02R3 or later, open the design file that contains your BLU-50. 

2) In the main Menu, go to Tools > London Device Conversion.

3) In your list of devices, select "BLU-50" from the dropdown list, change it to BLU-50v2 and press OK.

4) After pressing OK, go to File > Save As and give the file a new name, once the changes are saved, close and re-open the file.

5) After re-opening the design, “File Conversion Warning" message will be displayed, select YES.

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