ESP-ROM:esp32s3-20210327
Build:Mar 27 2021
rst:0x1 (POWERON),boot:0x20 (DOWNLOAD(USB/UART0))
waiting for download

under linux I used:

$ bitaxetool -p /dev/ttyUSB0 -f esp-miner-factory-lv08-v2.6.0-1.0.2b1.bin
Connecting to port: /dev/ttyUSB0
Flashing firmware: esp-miner-factory-lv08-v2.6.0-1.0.2b1.bin
Flashing config: None
esptool.py v4.7.0
Serial port /dev/ttyUSB0
Connecting....
Detecting chip type... ESP32-S3
Chip is ESP32-S3 (QFN56) (revision v0.2)
Features: WiFi, BLE, Embedded PSRAM 8MB (AP_3v3)
Crystal is 40MHz
MAC: 8c:bf:ea:84:a8:d4
Uploading stub...
Running stub...
Stub running...
Configuring flash size...
Flash will be erased from 0x00000000 to 0x00f11fff...
Compressed 15802368 bytes to 1602134...
Wrote 15802368 bytes (1602134 compressed) at 0x00000000 in 178.3 seconds (effective 708.9 kbit/s)...
Hash of data verified.

Leaving...
Hard resetting via RTS pin...