Yes and no.
No, because MWI is something YOU configure so there's no way we can have a guide with that.
Yes, because there is a factory reset which applies to any phone.
There are some things like **# to unblock the settings or **#** when in settings to reset the phone that are in some other docs, but we don't have one with all of the things you can enter in a phone.
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HTH
java
if this helps, please rate