[SOLVED] Flashing WeMos D1 Mini Pro (16MB) with Espruino

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user85573
Agreed, it's just that when I flashed espruino_1v95_esp8266_4mb_combined_4096.bin, I believe I got serial gibberish.

But success!
```
./esptool.py --port /dev/ttyUSB0 --baud 115200 write_flash --flash_freq 80m --flash_mode qio --flash_size 4MB-c1 0x0000 espruino_1v95_esp8266_4mb/boot_v1.6.bin 0x1000 espruino_1v95_esp8266_4mb/espruino_esp8266_user1.bin 0x3FC000 espruino_1v95_esp8266_4mb/esp_init_data_default.bin 0x3FE000 espruino_1v95_esp8266_4mb/blank.bin
```
On boot: Flash map 4MB:1024/1024, manuf 0xef chip 0x4018 and able to save() and reboot without serial gibberish.

In fact, it also works with just 4MB (not 4MB-c1) size: Flash map 4MB:512/512, manuf 0xef chip 0x4018.

and with ./esptool.py write_flash --flash_size 4MB-c1 0x0000 espruino_1v95_esp8266_4mb_combined_4096.bin

The takeaway seems to be, don't let esptool.py guess the chip size @ 16MB and don't specify 16MB.

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DrAzzy in reply to @user85573

In fact, it also works with just 4MB (not 4MB-c1) size:

IME, it appears to work, but when you do wifi.save(), it no longer boots and you have to reflash.

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