H801 lights dimmer bricked after firmware update
Posted: Tue Dec 13, 2016 1:49 pm
Hello,
I have H801 lights dimmer build around ESP8266.
It worked with the original firmware and with older MicroPython (I do not know what version, but it was about 2 months ago, stable release, no-512k version).
Now I tried to upload newer version, but it did not worked. Specifically:
esp8266-512k-20161110-v1.8.6.bin and esp8266-512k-20161202-v1.8.6-118-ga081b49.bin
Uploaded with esptool.py v1.2.1 and v1.0.1
by this commands:
esptool.py --port /dev/tty.wchusbserial1410 erase_flash
esptool.py --port /dev/tty.wchusbserial1410 --baud 115200 write_flash -fm dio --flash_size 4m --verify 0 ~/Downloads/esp8266-512k-20161110-v1.8.6.bin
Result is that after power up it permanently blinking with a LED and serial prints random characters:
screen /dev/tty.wchusbserial1410 115200
�o'�l`�og�$'{���gdl p�n�{�ܜ����co�<�c��gn��l`��dgs�ۓn�d;��g�l�l��|��{;'c��l�c�lc서���c�${�{ll��|�d�|�d�b|����s�bdc��'o�$g'���cp�dsdrl8�o��$#g�|�$c��o'�l��d`�'od`gs�ۓo�d$`p�g�sĜ���cn�|$��c��o'�l`�ng�$'{���gdl p�n�{�ܜ����co�<�c��gn��l`��dgs�ۓn�d;��o�l�$��|��soc��$�c�d#䌜���c�lr�sd$��|�l�|�l�c|����;�clc��o'�lno���#x�l{l{$p�'��lco�<�lc��'o�$��$`�gl n;���g�$l`x�o�{�����cg�|l��c��'o�d`�n�lorǛ�'d`8�g�r�������b'�|�#��ng��$`�og�ln{���g�ls��'�d�d��|��;snc��
Tried with two identical H801 devices.
Tried to flash ESP-01 with the same USB-UART converter and it worked.
Any ideas?
I have H801 lights dimmer build around ESP8266.
It worked with the original firmware and with older MicroPython (I do not know what version, but it was about 2 months ago, stable release, no-512k version).
Now I tried to upload newer version, but it did not worked. Specifically:
esp8266-512k-20161110-v1.8.6.bin and esp8266-512k-20161202-v1.8.6-118-ga081b49.bin
Uploaded with esptool.py v1.2.1 and v1.0.1
by this commands:
esptool.py --port /dev/tty.wchusbserial1410 erase_flash
esptool.py --port /dev/tty.wchusbserial1410 --baud 115200 write_flash -fm dio --flash_size 4m --verify 0 ~/Downloads/esp8266-512k-20161110-v1.8.6.bin
Result is that after power up it permanently blinking with a LED and serial prints random characters:
screen /dev/tty.wchusbserial1410 115200
�o'�l`�og�$'{���gdl p�n�{�ܜ����co�<�c��gn��l`��dgs�ۓn�d;��g�l�l��|��{;'c��l�c�lc서���c�${�{ll��|�d�|�d�b|����s�bdc��'o�$g'���cp�dsdrl8�o��$#g�|�$c��o'�l��d`�'od`gs�ۓo�d$`p�g�sĜ���cn�|$��c��o'�l`�ng�$'{���gdl p�n�{�ܜ����co�<�c��gn��l`��dgs�ۓn�d;��o�l�$��|��soc��$�c�d#䌜���c�lr�sd$��|�l�|�l�c|����;�clc��o'�lno���#x�l{l{$p�'��lco�<�lc��'o�$��$`�gl n;���g�$l`x�o�{�����cg�|l��c��'o�d`�n�lorǛ�'d`8�g�r�������b'�|�#��ng��$`�og�ln{���g�ls��'�d�d��|��;snc��
Tried with two identical H801 devices.
Tried to flash ESP-01 with the same USB-UART converter and it worked.
Any ideas?