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Appendix A. Emergency recovery
A.1. Summary
Put specific name of files on a USB memory. Turn on the DVR. While booting, DVR copies the file and replace
the corrupted file by new one. Use this procesure when DVR does not work because of power outage during the
program upgrade.
A.2. Preparation
• Download three files(bootloader, kernel, application) from the homepage. The name of downloaded files should
be changed as shown below.
• Bootloader : me30XXboot_restore.bin (XX : 04(4ch), 08(8ch), 16(16ch))
• Kernel : me30XXkernel_restore.bin (XX : 04(4ch), 08(8ch), 16(16ch))
• Application : me30XXapp_restore.bin (XX : 04(4ch), 08(8ch), 16(16ch))
• Copy the files to a USB memory. Copy the bootloader file to recover bootloader, copy the kernel file to recover
kernel or copy the applicaton file to recover application program. If you want to recover all of them, then copy
3 files to the USB memory.
A.3. Execution
USB memory stick plugged in to the DVR power on, If there is an emergency recovery files on the USB memory,
DVR proceeds with the emergency recovery process.
Figure A.1. Emergency recovery progress bar
The bootloader, kernel or application program is recovered while displaying a progress bar. If you recover all
of them, the progress bar is displayed three times. The progress bar is displayed to inform the state of recovery
bootloader, kernel and application program in series.
