Buhari disconnected nigeria return may no effect undedss

I think there may be a few issues with the sentence you provided. Here's a breakdown:

• "buhari disconnected nigeria" - This doesn't make sense, as a president cannot disconnect a country. Nigeria is a sovereign nation with its own government and infrastructure.
• "return may no effect undedss" - This sentence is unclear and contains several errors. It seems like you may have meant to say something about the potential effects of a return or a decision, but the sentence is difficult to understand.

Could you please rephrase or provide more context about what you are trying to say? I'll do my best to help you with your question or concern.