3. Recovery Mode

The EM3566 supports upgrade firmware through recovery mode. Insert the SD upgrade card to the board and power on, the device will enter recovery mode.

Note

The upgrade process must be restarted to enter the recovery mode, rather than upgraded directly in the Normal system.

Please format the SD card and make sure there is only one partition before make upgrade card, otherwise it may cause fail to upgrade.

3.1 Format SD Card

Step 1, if the SD card has only one partition, just format it as FAT32 in Windows.

Format SD Card

Step 2, if the SD card has multiple partitions, it needs to clear all partitions, and then create a new partition.

Warning

Select the SD card to be formatted with caution, otherwise will cause system crash issues.

Format SD Card in CMD

3.2 Make SD Upgrade Card

Step 1, unzip SDDiskTool_v1.69.zip on Windows.

Step 2, open SDDiskTool_v1.69\SD_Firmware_Tool.exe.

Step 3, make SD upgrade card as follow.

Make SD Upgrade Card

Step

Describe

1

Select a SD card from the drop-down list

2

Check Upgrade Firmware

3

Click Firmware and select update.img

4

Click Create to start creation.
Creating upgrade disk OK

Step 4, insert the SD upgrade card to the slot and power on, firmware updates automatically.

update

Step 5, pull out the SD upgrade card according to the prompt, and the system can boot normally.