What make/model phone/device do you have? What about saving your messages, uninstalling Message+, then re-installing and restoring messages if needed? What 'default' settings are you trying to get back to?
Were you using another app as your default messaging app?
If you go into your application manager and force stop the app
you were using then try to open messages+ it will ask you if you
want it to be your default messaging app just say yes.
GERHUC75, we know the importance of being able to reset any app. We are here to help point you in the right direction. To reset any customization you may have done to that app, you can simply tap the 3 dots on the upper right when on the main Message+ screen, then tap Customize. When you scroll down, it will give you the option to Reset to Default.
You can also reset the app fully, but this would also erase your messages. If you have an iPhone you would do this simply by uninstalling the app and then reinstalling it. If you have an Android you can go to Settings, tap Applications or Apps, then tap App Manager. Then you would scroll down and tap on Message+, then tap Storage. From there you would then tap Clear Data.
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