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Engeneering mode head units 2021-2024

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nikolayradev00

New Member
Sep 30, 2025
1
0
1
Germany
How to access Engineering Mode on 10” head unit (2021–2024)


Hi everyone — new here. I own a Hyundai i30 Fastback 2020 N Line and I recently swapped the original radio for a 10” head unit from the 2021–2024 models. I’m trying to access the Engineering / Service / Diagnostic Mode on this unit but can’t find a reliable method.
 
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