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M3 UL20W
Brand
M3 UL20
Model
UL20F
Date
Issue type
OS Update
Version
V2.5.17
Dec. 2020
 
Preparation
l Download OTA Package file for OS update. It can be downloaded from M3 MOBILE ITC webpage.
Approved ITC account is required to access the webpage.
 
Current OS Version Check
Settings -> System -> About Phone -> Software version
(Note : The model name for reference in the image below and the actual model name may differ each other.)
 
 
Note
l OS file naming rule:
UL20W
V
Number
(1)
(2)
(3)
 
(1)Indicates device model. UL20F.
(2)V indicates version.
(3)Indicates version sequence.
 
OS update with OTA file.
1.Local update
2.Remote update