File version information
Key layout Diagram and Interface description
1.
Home, Menu, Quick photo button, Return button: For quick operation of mobile
phone.
2.
Earphone interface: 3.5mm standard Earphone Audio output Interface.
3.
Microphone: To receive a speaker's voice and convert a sound signal into an electrical
signal.
Issue date
2018-07-25
Page
Change record
Number
Update
name
Version
Date
Content
Department
1
YDXX-02
V1.0
2018-07-25
First
published
Service FAE
department
File name
MX21 Android System User’s Manual
File number
0002
Version
V1.0
