ATS Mini V4 Firmware Download Links & Flashing Tool Cheat Sheet

Community firmware (most actively developed): github.com/esp32-si4732/ats-mini — check Releases page, pick OSPI or QSPI variant matching your board's PSRAM type.

Full documentation/manual: esp32-si4732.github.io/ats-mini

Backup your current firmware first:

uvx --from esptool esptool.py --chip esp32s3 --port SERIAL_PORT --baud 921600 read_flash 0x0 ALL original-flash.bin

Flash new firmware (separate files):

uvx --from esptool esptool.py --chip esp32s3 --port SERIAL_PORT --baud 921600 \
  --before default-reset --after hard-reset write_flash -z \
  --flash-mode keep --flash-freq keep --flash-size keep \
  0x0 ats-mini.ino.bootloader.bin \
  0x8000 ats-mini.ino.partitions.bin \
  0x10000 ats-mini.ino.bin

Flash new firmware (merged single file):

uvx --from esptool esptool.py --chip esp32s3 --port SERIAL_PORT --baud 921600 \
  --before default-reset --after hard-reset write-flash -z \
  --flash-mode keep --flash-freq keep --flash-size keep \
  0x0 ats-mini.ino.merged.bin

Restore from backup:

uvx --from esptool esptool.py --chip esp32s3 --port SERIAL_PORT --baud 921600 \
  --before default_reset --after hard_reset write_flash -z \
  --flash_mode keep --flash_freq keep --flash_size keep \
  0x0 original-flash.bin

Verify after flashing: Menu > Settings > About — check firmware version and PSRAM detection.

Full guide with context: see "Flashing ATS Mini V4 Firmware" how-to.