In this example we will update Digital+ Key 01
Once you have unzipped ISVEdit and started it
you will be confronted with the following main screen.
Select the correct type of file bin,hex or crd and click on it
(we will be using L53 hex.file in our example)
so we click on 'Load Hex' button

As soon as you click 'Load Hex' a window will appear (see below)
here you must select the correct folder where your
file is located, once located click/select the
L53_external.hex file only ignore the V4.xx_Flash.hex.

Once you have laoded the L53_external.hex file you then click
the 'Edit' button and access the encryption option window  (see below)

As we are using Digital+ in this example click on
the Nagra tab on top of the page, to access the
Nagra Key section, then select Key 01 for Digital+
Here you can overwrite it with the latest Key.
Once you are satisfied you have entered the new key
correctly, you must now save it.
Tick the box next to the key you wish to save and click
'Write to Memory' dont worry if nothing happens thats normal
now click 'Close'

Now on the final window click 'Save Hex'
you now have the option of either overwriting the original
hex.file or creating a new one, if you want to create a new
hex.file just type a name and save it.

To close down ISVEdit click just on the 'Exit' button

All the best 'Laurals'

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