Hi @Gavin_Jia,
I spoke with the engineer and the short answer to this problem was operator error, see below.
One other question is why your OTA Update page is different from the one that was generated?
Your OTA Update is Running in test mode and the generated version is Permanent only.
"Reviewed the initial response from you and discovered that the image was not loading because the BOARD_FLASH location was incorrectly changed to 0x30040000.

The Target Flash location should have been changed to 0x30040000 instead of the BOARD_FLASH location.

After fixing the BOARD_FLASH location and changing the Target Flash Base Address the Primary Slot booted Version 1.10.0
hello sbl.
Disabling flash remapping function
Bootloader Version 1.10.0
Primary slot: version=1.10.0+0
Secondary slot: version=1.11.0+0
Found a candidate in slot 0
writing copy_done; fa_id=0 off=0x1fffe0 (0x23ffe0)
Image 0 loaded from the primary slot
Bootloader chainload address offset: 0x40000
Reset_Handler address offset: 0x40400
Jumping to the image
Booting the primary slot - flash remapping is disabled
Initializing PHY...
************************************************
mbedTLS HTTPS Server example
************************************************
IPv4 Address : 192.168.0.102
IPv4 Subnet mask : 255.255.255.0
IPv4 Gateway : 192.168.0.100
************************************************
Updated the Target Flash Base Address and the Secondary Slot booted Version 1.11.0

hello sbl.
Disabling flash remapping function
Bootloader Version 1.10.0
Primary slot: version=1.10.0+0
Secondary slot: version=1.11.0+0
Found a candidate in slot 1
writing copy_done; fa_id=1 off=0x1fffe0 (0x43ffe0)
Image 0 loaded from the secondary slot
Bootloader chainload address offset: 0x240000
Reset_Handler address offset: 0x240400
Jumping to the image
Booting the secondary slot - flash remapping is enabled
Initializing PHY...
************************************************
mbedTLS HTTPS Server example
************************************************
IPv4 Address : 192.168.0.102
IPv4 Subnet mask : 255.255.255.0
IPv4 Gateway : 192.168.0.100
************************************************
"