Connection Problem or Invalid MMI Code

MusiqueMKD — Mon, 16 Jul 2018 00:18:31 +0800

Hi,

Currently I'm using Hotlink on Xiaomi Redmi Note 5 Pro China ROM.

I tried dialing *100# and return result as "connection problem or invalid MMI code".

I am looking for deactivating voice mail but I have used some other codes still showing same result.

What is the issue on this matter?

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Connection Problem or Invalid MMI Code