Black screen

[joosept]

I tried firmware update´ing and now the device powers on, but only shows black screen.
Device is still found, but what to do?
C:\Windows\system32>python -m esptool --no-stub chip_id
esptool.py v4.7.0
Found 1 serial ports
Serial port COM3
Connecting....
Detecting chip type... Unsupported detection protocol, switching and trying again...
Connecting....
Detecting chip type... ESP8266
Chip is ESP8266EX
Features: WiFi
Crystal is 26MHz
MAC:
Enabling default SPI flash mode...
Chip ID: 0x002afd1d
Hard resetting via RTS pin...

[joosept]

Okay, tried python -m esptool erase_flash and python -m esptool --before default_reset --after hard_reset --chip esp8266 --baud 460800 write_flash 0x0 <path_to_download>/cointhing_v1.7.0.bin 0x200000 <path_to_download>/spiffs_v1.7.0.bin
Also changed USB cable, it works!

But would it be possible add 7 day Chart Period?