VIM3 android12 fastboot oem problem

Hi ALL,
Who can help me to resolve this problem. Many thanks!
For android12, the fastboot oem format command return < waiting for any device >.
Does the VIM3 (ID 1b8e:fada Amlogic, Inc.) enter into fastboot mode?
How to fastboot oem format on VIM3?

Below is problem log :
$sudo ./tools/update write u-boot_kvim3_noab.bin 0xfffa0000 0x10000

Transfer Complete! total size is 65536 Bytes

$sudo ./tools/update run 0xfffa0000
[update]Run at Addr fffa0000
AmlUsbRunBinCode:ram_addr=fffa0000

$sudo ./tools/update bl2_boot u-boot_kvim3_noab.bin
[LUSB][AMLC]dataSize=16384, offset=65536, seq 0
[LUSB]requestType=0
[LUSB]before wait sum
[LUSB]check sum OKAY
… …
[LUSB]BL2 END, waiting TPL plug-in…

$ lsusb
Bus 003 Device 009: ID 1b8e:fada Amlogic, Inc.

$ fastboot oem format
< waiting for any device >