Customize the logo in Applications Manager’s dashboard

Customize the logo in Applications Manager’s dashboard

i want to change the logo and was following this steps:

and as far as i can tell i have done exactly that but when i restart get this:

i can delete the OEM.txt and restart to make Applications manager work but still looking for a way to change the logo. I am guessing that somewhere I am not doing something but can find what it's.

Appreciate any suggestions
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