download: AT firmware which can upgrade by "AT+CIUPDATE" boot_v1.2+.bin 0x00000 user1.1024.new.2.bin 0x01000 blank.bin 0x7e000 & 0xfe000 or AT firmware which can not upgrade by "AT+CIUPDATE", but fit in 4Mbit flash eagle.flash.bin 0x00000 eagle.irom0text.bin 0x40000 blank.bin 0x3e000 & 0x7e000 *NOTICE*: 1.If you use Esp Flash Download Tool, please MAKE SURE to choose FLASH SIZE to 8Mbit. 2.UPDATE is not supported in non-boot mode Update steps 1.Make sure TE(terminal equipment) is in sta or sta+ap mode ex. AT+CWMODE=3 OK AT+RST 2.Make sure TE got ip address ex. AT+CWJAP="ssid","12345678" OK AT+CIFSR 192.168.1.134 3.Let's update ex. AT+CIUPDATE +CIPUPDATE:1 found server +CIPUPDATE:2 connect server +CIPUPDATE:3 got edition +CIPUPDATE:4 start start OK note. If there are mistakes in the updating, then break update and print ERROR.