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2. MCU Upgrade. Upgrade Procedure. Preparations and Reminders. Copy “ 1900@@MCU ” folder into an empty Micro SD card. Stuffs to be prepared before software upgrade. M icro SD Card (TF Card). C ar AV System. 1900 @@ MCU.rar. 1900@@MCU.rar (MCU Upgrade file). M icro SD Card (TF Card).

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2 mcu upgrade
2. MCU Upgrade

Upgrade Procedure

Preparations and Reminders

Copy “1900@@MCU” folder into an empty Micro SD card

Stuffs to be prepared before software upgrade

Micro SD Card (TF Card)

Car AV System


1900@@MCU.rar (MCU Upgrade file)

Micro SD Card (TF Card)



Extact the1900@@MCU.rar to get a “1900@@MCU”folder, copy this “1900@@MCU”to an empty Micro SD Card (TF Card).


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


Micro SD Card

(TF Card)


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