[IGSW-2840] I was trying to upgrade the firmware but the black-out suddenly came. Then I tried to ping and browse the Switch since it totally dead...

Do I have any way to recover it? Is it possible to reset to factory default?
I had also tried to operate it by using Console but just showed like below:

Image Loader 1.0.0.1
Loading Diagnostic Image File : Diag_1010.bix

--- Performing Power-On Self Tests (POST) ---
DUMMY Test 1 ................. PASS
UART Loopback Test ........... PASS
DRAM Test .................... PASS
Switch Int Loopback Test ..... PASS
Done All Pass.
------------------ DONE ---------------------
Runtime Loading Fail - System Halt.

Answer:
In regard of the situation as your described,
Please kindly refer to following procedure under IGSW-2840 Console interface and solves this issue.
1. Please use console cable to connect with PC and IGSW-2840 then set COM1 port parameter as 9600, 8, N, 1 then use communication tool (such as Hyper terminal) to get into console interface.


2.Please press “Esc” key when the “--------DONE----------“message appears, then please press “D” for delete file.


3. Please input “startup1.cfg” after File name to delete:, then the following message appears;
This is startup file, you sure you want to delete it (y/n)? Please input “y” for delete this file.


4. Please input “Q” to complete the factory default procedure of IGSW-2840, then the IGSW-2840 will reboot automatically.

5. After IGSW-2840 power on complete and it back to factory default mode.