- Thu Jan 22, 2015 5:50 am
#7940
Hi,
i have 3 ESP8266 with Firmware "0018000902-AI03" so they often boot loop and i decided to update one via "AT+CIUPDATE". So it does Update 1- Update 4 without any erros. And then there was no "OK" but anything cryptic and nothing more happens. As i restartet the Modul, nothing readable printed out. I connected my Logic analyzer and figured out that Baudrate is "75471". I now get the following message on Boot:
So my modul doesn't accept any AT command. In Boot mode, GPIO0 hold low, i get the following message:
in a loop.
Is there any way to rescue my ESP8266?
i have 3 ESP8266 with Firmware "0018000902-AI03" so they often boot loop and i decided to update one via "AT+CIUPDATE". So it does Update 1- Update 4 without any erros. And then there was no "OK" but anything cryptic and nothing more happens. As i restartet the Modul, nothing readable printed out. I connected my Logic analyzer and figured out that Baudrate is "75471". I now get the following message on Boot:
Code: Select all
ets Jan 8 2013,rst cause:1, boot mode:(3,7)
load 0x40100000, len 25052, room 16
tail 12
chksum 0x0b
ho 0 tail 12 room 4
load 0x3ffe8000, len 3312, room 12
tail 4
chksum 0x53
load 0x3ffe8cf0, len 6576, room 4
tail 12
chksum 0x0d
csum 0x0dSo my modul doesn't accept any AT command. In Boot mode, GPIO0 hold low, i get the following message:
Code: Select all
Fatal exception (0):
epc1=0x40100002, epc2=0x00000000, epc3=0x00000000, excvaddr=0x00000000, depc=0x00000000in a loop.
Is there any way to rescue my ESP8266?
