If it's not connecting to the device, what errors do you see? Paste your command line output here and maybe I can help further.

One other custom I did for ampy... I created the file ~/.ampy with these contents:

# Example .ampy file
# Please fill in your own port, baud rate, and delay
AMPY_PORT=/dev/tty.SLAB_USBtoUART
AMPY_BAUD=115200
# Fix for macOS users' "Could not enter raw repl"; try 2.0 and lower from there:
#AMPY_DELAY=0.5

If you create that file, you will not have to pass the port and baud rate options when running the ampy command. This is the standard way to run ampy when you don't have the .ampy file created.

world101$ ampy -p /dev/tty.SLAB_USBtoUART -b 115200 ls
/flash

Also, I was mistaken on the the v1.2.3 firmware with the beeps disabled by default. I just flashed one of my cores with the M5Burner and the beeps are there. I must have been running a custom firmware before.

the ampy get /flash/boot.py command doesn't seem to work on my mac.

I've tried adding the uart address and bauds but no luck.....

any caveat?!

Did you install ampy on your Mac? If not, it won’t work. You can find install instructions here: https://learn.adafruit.com/micropython-basics-load-files-and-run-code/install-ampy

Also, I need to double check tomorrow, but starting with uiFlow firmware v1.2.3, I think the M5Stack team already disabled the first startup beep in the firmware.

I've tried adding the uart address and bauds but no luck.....

any caveat?!

Is there a way to put forward a formal request for no-beeps or options in main menu?

I got it flashed and it's working good. No startup beep :-)

For anyone else interested in v1.2.0 without the startup beeps...
https://www.dropbox.com/s/093qcc7e51ywl4m/nobeep.zip?dl=0

Pre-requisite: you must have esptool.py installed on your Mac and the m5stack is connected to a USB port.

unzip nobeep.zip 
cd nobeep
esptool.py --chip esp32 --port /dev/tty.SLAB_USBtoUART --baud 921600 erase_flash
esptool.py --chip esp32 --port /dev/tty.SLAB_USBtoUART --baud 921600 write_flash -z 0x1000 ./bootloader.bin 0xf000 ./phy_init_data.bin 0x10000 ./MicroPython.bin 0x8000 ./partitions_mpy.bin
esptool.py --chip esp32 --port /dev/tty.SLAB_USBtoUART --baud 921600 --before default_reset --after no_reset write_flash -z --flash_freq 40m 0x170000 ./spiffs_image_0x170000.img

Reboot the m5stack.

To silence the second beep (when choosing Upload, App.List, or Setup) do this:
Pre-requisite: you must have ampy installed on your Mac

ampy get /flash/boot.py

Copy the entire output and create a new file called boot.py. Make the change below to set volume=0 in these three locations of the while loop.

# wait 1000 for user choose
cnt_down = time.ticks_ms() + 1000
while time.ticks_ms() < cnt_down:
    if buttonA.isPressed():   # M5Cloud upload     
        speaker.tone(2000, 50, volume=0, timer=False) # Beep
        core_start('flow')
        break

    elif buttonB.isPressed(): # APP list
        speaker.tone(2000, 50, volume=0, timer=False) # Beep
        from app_manage import file_choose
        file_choose()
        core_start('app')
        break

    elif buttonC.isPressed(): # WiFi setting
        speaker.tone(2000, 50, volume=0, timer=False) # Beep
        import wifichoose
        wifichoose.start()
        break

Upload the new file to the m5stack:

ampy put boot.py /flash/boot.py

Reboot the m5stack.

@world101 Hi,if you can flash firmware, i can provide a version without beep :)

I assume the first beep is compiled into the firmware bin file and not a configuration setting in one of the python files. Anyway, yes I can flash firmware, so please send it to me.

Of course that applies only to projects that don't need the speaker at all. :)

Means disable start-up beep within the uiflow firmware?

Yes. I found where the second beep is defined when you press buttons A, B, or C after the first beep. But I would like to disable the first beep as well.

Indeed, I'm interested in that too. I find that short sound glitch quite annoying.

And me makes three.