Hi,
I change my flash memory from 1MB to 16MB. By using esptool with option -fs detect my 16MB was detected perfectly.
So, first of all I erased my flash by using esptool and after that I uploaded the new firmware (tried my own build and another build downloaded from MicroPython.org's download section)
esptool.py --port /dev/tty.usbserial-A50285BI --baud 460800 write_flash --verify -fm dio -fs 16MB 0 firmware-combined.bin
Next, I removed GPIO0 from GND and reset my board, connected to the board with baud rate 115200 and got tones strange characters (seems the baud is incorrect) and repl didn't start
What is the problem could be? My flash is Winbond W25Q128, this flash is not broken, I checked it out before