![Samsung Galaxy Secret Code List! [2021 Updated]- Dr.Fone](https://drfone.wondershare.com/images/others/samsung-secret-codes.jpg "Samsung Galaxy Secret Code List! [2021 Updated]- Dr.Fone")
Samsung Galaxy Secret Code List! [2021 Updated]- Dr.Fone
How to access engineering mode on an Android
Access hidden info on your Android device with these secret codes
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How to access engineering mode on an Android
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![GUIDE][MTK] Using Engineering mode to increase audio output | XDA Forums](https://forum.xda-developers.com/proxy.php?image=http%3A%2F%2Fimg.tapatalk.com%2Fd%2F13%2F09%2F28%2Fe9y4a2yb.jpg&hash=e17ce666cd5a79ec26a5fa36582d7af0 "GUIDE][MTK] Using Engineering mode to increase audio output | XDA Forums")
GUIDE][MTK] Using Engineering mode to increase audio output | XDA Forums
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