Send the following on WhatsApp
Continue to Chatesp8266 mem layout https://harizanov.com/2015/06/firmware-over-the-air-fota-for-esp8266-soc/esp8266-mem-layout/
esp8266 mem layout https://harizanov.com/2015/06/firmware-over-the-air-fota-for-esp8266-soc/esp8266-mem-layout/