2. Using bootup sd disk made by SDDiskTool.
Step 1 : Using AndroidTool to create update.img
1. Put image to AndroidTool\rockdev\image.
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2. Double click mkupdate.bat. in AndroidTool\rockdev.
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Then you can find update.img in AndroidTool\rockdev.
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Step 2 : Create update SD (Red word).
Step1 Choose the SD device.
Step2 Choose the "firmware update"
Step3. Choose the update.img path
Step4. Create the update SD
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Create the Update SD card Success
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Step 3 : Insert the mirco sd card into SD1 of the ROM-DB5901 board
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Step 4 :Power on in ROM-DB5901
Step 5 : Installing system update
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Step 6 : Please Remove the SD Card when ROM-DB5901 show the message "Doing Action succeeded. please remove the sdcard......".
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Step 7:Remove DC-IN and SD card then ROM-DB5901.