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4. Bluetooth Upgrade. Upgrade Procedure. Preparations and Reminders. Copy “ [email protected]@BT ” folder into an empty Micro SD card. Stuffs to be prepared before software upgrade. M icro SD Card (TF Card). C ar AV System. 2 750 @@ BT.rar. [email protected]@BT.rar (Bluetooth Upgrade file).

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4 bluetooth upgrade
4. Bluetooth Upgrade

Upgrade Procedure

Preparations and Reminders

Copy “[email protected]@BT” folder into an empty Micro SD card

Stuffs to be prepared before software upgrade

Micro SD Card (TF Card)

Car AV System

[email protected]@BT.rar

[email protected]@BT.rar (Bluetooth Upgrade file)

Micro SD Card (TF Card)

[email protected]@BT.rar

[email protected]@BT

Extact [email protected]@BT.rar to get a “[email protected]@BT”folder, copy this “[email protected]@BT”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 8 minutes to upgrade, The Car AV system must keep Power on status.

Car AV System

Insert 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. Removing the Micro SD card(TF Card) during the software updating is NOT allowed .

Bluetooth upgrade successfully

After upgrade OK, You must remove the Micro SD Card (TF Card) immediately,

the Car AV System will restart automatically .


Micro SD Card

(TF Card)

Upgrade ok