Posts made by davidtgbe

Ok, I've solved it with this sequence.

1. Erase and then flash UIFlow with M5Burner.
2. Disconnect USB from PC
3. Press PWR Button 6 sec to turn stick off.
4. Connect M5Stick to PC again

Same stick, same problem. I was trying to flash stickwatch project (https://github.com/sysdl132/m5stack-stickwatch) through platformio with settings indicated by the author:

[env:m5stack-core-esp32]
platform = espressif32
board = m5stack-core-esp32
framework = arduino
board_build.flash_mode = qio
board_build.f_flash = 80000000L
board_build.partitions = no_ota.csv
upload_speed = 750000

I've tried with the BAT + GND solution but with no success :(
Tried erasing and loading m5stick_factorytest firmware.
Tried erasing and loading uiflow-v1.4.3 firmware with m5burner:

esptool.py v2.5.0
Serial port COM4
Connecting....
Detecting chip type... ESP32
Chip is ESP32-PICO-D4 (revision 1)
Features: WiFi, BT, Dual Core, 240MHz, Embedded Flash, VRef calibration in efuse
MAC: d8:a0:1d:50:51:d8
Uploading stub...
Running stub...
Stub running...
Erasing flash (this may take a while)...
Chip erase completed successfully in 2.1s
Hard resetting via RTS pin...
Finished

Command:
--chip esp32 --port COM4 --baud 750000 --before default_reset --after no_reset write_flash -z --flash_mode dio --flash_freq 80m --flash_size detect 0x10000 application_0x10000.bin 0x1000 bootloader_0x1000.bin 0x200000 fatfsImg_0x200000.img 0x8000 partitions_0x8000.bin 0xf000 phy_init_data_0xf000.bin
===================================================****
esptool.py v2.5.0
Serial port COM4
Connecting....
Chip is ESP32-PICO-D4 (revision 1)
Features: WiFi, BT, Dual Core, 240MHz, Embedded Flash, VRef calibration in efuse
MAC: d8:a0:1d:50:51:d8
Uploading stub...
Running stub...
Stub running...
Changing baud rate to 750000
Changed.
Configuring flash size...
Auto-detected Flash size: 4MB
Compressed 1965600 bytes to 1378389...

Writing at 0x00010000... (1 %)
...
Writing at 0x0021c000... (100 %)
Wrote 2097152 bytes (125780 compressed) at 0x00200000 in 2.5 seconds (effective 6809.0 kbit/s)...
Hash of data verified.
Compressed 3072 bytes to 122...

Writing at 0x00008000... (100 %)
Wrote 3072 bytes (122 compressed) at 0x00008000 in 0.0 seconds (effective 1540.8 kbit/s)...
Hash of data verified.
Compressed 144 bytes to 69...

Writing at 0x0000f000... (100 %)
Wrote 144 bytes (69 compressed) at 0x0000f000 in 0.0 seconds (effective 72.2 kbit/s)...
Hash of data verified.

Leaving...
Staying in bootloader.

Stick is working, but blank screen.
Maybe I've messed up partition table or something... I've not connected anything more than the USB-C cable to the computer and shorted the GND-BAT pins to try to solve the problem, so couldn't be a hardware problem...