2. MCU Upgrade

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2. MCU Upgrade
Upgrade Procedure
Preparations and Reminders
Copy 620_at__at_MCU folder into an empty Micro SD card
Stuffs to be prepared before software upgrade
Micro SD Card (TF Card)
Car AV System
620_at__at_MCU.rar
620_at__at_MCU.rar (MCU Upgrade file)
Micro SD Card (TF Card)
620_at__at_MCU.rar
620_at__at_MCU
Extact the 620_at__at_MCU.rar to get a 620_at__at_MCU
folder, copy this 620_at__at_MCU to an empty Micro SD
Card (TF Card).
Upgrading
After insert Micro SD Card (TF Card),you must
restart the Car AV System, it will be pop up a
advisory message to select and confirm upgrade.
Micro SD Card(TF Card)
Format the Micro SD Card in case any hidden
files, then extract the file and copy it to an
empty Micro SD Card (TF Card)
It takes about 1 minute to upgrade, The Car AV
system must keep Power on status.
Car AV System
Insert Micro SD Card (TF Card)
Upgrading
1. During the software updating, the Car AV
System must be kept in POWER ON status, otherwise
it may cause permanent damage to the unit. 2.
Taking out the Micro SD card(TF Card) during the
software updating is NOT allowed .
MCU upgrade successfully
After upgrade OK, you must take out the Micro SD
Card (TF Card), and then restart the Car AV
System.
Take out Micro SD Card (TF Card)
Upgrade ok
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