Shasta Edgecore switch Factory Reset Procedure

Steps to perform factory reset on a Shasta Edgecore switch

1. Power off the switch
2. Create a Loopback Connection port-3 and port-4
   Connect Port 3 and Port 4 together to form a loopback connection and ensure both interfaces are linked up (by checking link status LEDs).
3. Power on the switch and wait 3-4 minutes for it to come up
4. Access the Console with Ctrl + ] 
   On the console, press Ctrl + ]
5. Enter password admin123
   Note: The password will not be visible while typing on the console. It is expected.
   You should type in the admin123 password and then press <enter>, without seeing anything come back to you on the console, even if it continues to scroll with debug messages
6. Confirm Reset
   After authentication, confirm the reset when prompted:
   Are you sure to restore the default configuration? <y/n> y
7. Wait for the loopback detection and disconnect the loopback
   In the console: "Loopback of stipulated port is detected. Repetitions: 1"
   Then unplug the cable to disconnect the loopback
8. Wait 5 seconds
9. Create again a loopback Connection port-3 and port-4 
10. Wait for the 2nd loopback detection
    This can take 10-15 seconds. In the console:
    Loopback of stipulated port is detected. Repetitions: 2
    Succeed in restoring default configuration. System will be restarted.
11. Reset triggered by switch
12. Disconnect the loopback

Here's an example console capture:

User Access Verification
Username: ucentral-client: Starting discover
May 26 08:22:34 ucentral-client: Starting discover
 Stipulated ports are: 3 and 4. Are you sure to restore the default configuration? <y/n>y
Loopback of stipulated port is detected. Repetitions: 1
ucentral-client: plat_state_deinit:653: plat_state_deinit: START, free mem = 871141376 bytes, used mem = 149508096 bytes
May 26 08:22:46 ucentral-client: plat_state_deinit:653: plat_state_deinit: START, free mem = 871141376 bytes, used mem = 149508096 bs
ucentral-client: plat_state_deinit:746: plat_state_deinit: END, free mem = 871141376 bytes, used mem = 149508096 bytes
May 26 08:22:46 ucentral-client: plat_state_deinit:746: plat_state_deinit: END, free mem = 871141376 bytes, used mem = 149508096 byts
ucentral-client: plat_state_deinit:653: plat_state_deinit: START, free mem = 871141376 bytes, used mem = 149508096 bytes
May 26 08:22:46 ucentral-client: plat_state_deinit:653: plat_state_deinit: START, free mem = 871141376 bytes, used mem = 149508096 bs
ucentral-client: plat_state_deinit:746: plat_state_deinit: END, free mem = 871141376 bytes, used mem = 149508096 bytes
May 26 08:22:46 ucentral-client: plat_state_deinit:746: plat_state_deinit: END, free mem = 871141376 bytes, used mem = 149508096 byts
ucentral-client: plat_state_get:1817: plat_state_get: START, free mem = 871141376 bytes, used mem = 149508096 bytes
May 26 08:22:46 ucentral-client: plat_state_get:1817: plat_state_get: START, free mem = 871141376 bytes, used mem = 149508096 bytes
ucentral-client: Starting discover
May 26 08:22:49 ucentral-client: Starting discover
Loopback of stipulated port is detected. Repetitions: 2
Succeed in restoring default configuration. System will be restarted.
umount: can't unmount /flash: Dereboot: Restarting system with command 'type=3,startaddr1111=0x0,bootreasonaddr=0x0'
vice or resource busy
U-Boot 2011.12.(4.0.2.55154)0.0.2.3 (Nov 08 2022 - 14:11:50)
Board: RTL9310 CPU:1000MHz LX:200MHz DDR:800MHz
DRAM:  1 GB
SPI-F: MXIC/C2201A/MMIO32-4/ModeC 1x64 MB (plr_flash_info @ 83fb95dc)
Loading 786432B env. variables from offset 0x1c0000
Net:   Net Initialization Skipped
No ethernet found.
Booting...  0
partition changed to nor0,2
Scanning JFFS2 FS: . done.