slow down the baud rate to 57600
an issue from NWI1044-dat - CH9102-dat
A fatal esptool.py error occurred: Invalid head of packet (0x49)
Chip is ESP8266EX
Features: WiFi
Crystal is 26MHz
MAC: f4:cf:a2:d9:74:3a
Uploading stub...
Running stub...
solved
Serial port COM18
Connecting....
Chip is ESP8266EX
Features: WiFi
Crystal is 26MHz
MAC: f4:cf:a2:d9:74:3a
Uploading stub...
Running stub...
Stub running...
Configuring flash size...
Auto-detected Flash size: 4MB
Erasing flash (this may take a while)...
Chip erase completed successfully in 7.4s
Flash params set to 0x0240
Compressed 307328 bytes to 223573...
Writing at 0x00000000... (7 %)
Writing at 0x00004000... (14 %)
Writing at 0x00008000... (21 %)
Writing at 0x0000c000... (28 %)
Writing at 0x00010000... (35 %)
Writing at 0x00014000... (42 %)
Writing at 0x00018000... (50 %)
Writing at 0x0001c000... (57 %)
Writing at 0x00020000... (64 %)
Writing at 0x00024000... (71 %)
Writing at 0x00028000... (78 %)
Writing at 0x0002c000... (85 %)
Writing at 0x00030000... (92 %)
Writing at 0x00034000... (100 %)
Wrote 307328 bytes (223573 compressed) at 0x00000000 in 38.9 seconds (effective 63.3 kbit/s)...
Hash of data verified.
Leaving...
Hard resetting via RTS pin...