ESP8266 Community Forum

- Wed Apr 06, 2016 3:54 pm #45001 hi everyone!

I am posting this here because i am a little bit desperate. I've tried to find a solution of this going over all of the forums i know but I didn't find any specific answer.

Yesterday I was configuring my ESP8266-01. I achieved to connect it to my network using all the AT commands needed.

The last command i've used was this:
AT+CIPSTART= 0,"TCP","192.168.1.1",80

After use this command, my module answered OK, and I went to see the configuration of my router and i found the module connected to it. So, until here, everything was going right.

The problem comes when i tried to update the firmware of the module. I used the AT command:
AT+CIUPDATE

After this, I started to see in my terminal the steps of the update:
1. +CIPUPDATE:1
2. +CIPUPDATE:2
3. +CIPUPDATE:3
4. +CIPUPDATE:4

After the last line, the terminal only give me this:

c)HEEˑa#aP%)Cal!chKFgءP|c)HCDE #aP%)Cal!chKFgءP|c)HEEˑa pLCal!chKFgءP|c)HEEˑa#aP%)Cal!chKFgءP|c)CDE #aP%)Cal!chKFgءP|c)HEEˑa#aP%)Cal!chKFgءP|c)HEEˑa#aP%)Cal!chKFgءP|c)HEEˑa#aP%)Cal!chKFgءP|c)HEEˑa#aP%)Cal!chKFgءP|c)HEEˑa#aP%)Cal!chKFgءP|c)HCDE #aP%)Cal!chKFgءP|c|IHEEˑa#aP%)Cal!chKFgءP|c)CDE #aP%)Cal!chKFgءP|c)HEEˑa#aP%)Cal!chKFgءP|c)HEEˑa#aP%)Cal!chKFgءP|c)HEEˑa#aP%)Cal!chKFgءP|c)HEEˑa#aP%)Cal!chKFgءP|c)HEEˑa#aP%)Cal!chKFgءP|c)HCDE #aP%)Cal!chKFgءP|c)HEEˑa#aP%)Cal!chKFgءP|c)HEEˑa#aP%)Cal!chKFgءP|c)HEEˑa#aP%)Cal!chKFgءP|c)HEEˑa#aP%)Cal!chKFgءP|c)HEEˑa#aP%)Cal!chKFgءP|c)HEEˑa#aP%)Cal!chKFgءP|c)HEEˑa#aP%)Cal!chKFgءP|c)HEEˑa#aP%)Cal!chKFgءP|c)HEEˑa#aP%)Cal!chKFgءP|c)HCDE #aP%)Cal!chKFgءP|c)HEEˑa#aP%)Cal!chKFgءP|c)HEEˑa#aP%)Cal!chKFgءP|c)HEEˑa#aP%)Cal!chKFgءP|c)HEEˑa#aP%)Cal!chKFgءP|c)HEEˑa#aP%)Cal!chKFgءP|c)CDE #aP%)Cal!chKFgءP|c)HCDE #aP%)Cal!chKFgءP... And never stops

It is if as it have entered in a bucle, repeating everytime the same thing, and the blue little led of the module is blinking every time so fast. I don't know what that means, and I'm not capable to stop it. It doesn't answer to other AT commands. I've tried to reset the module using AT+RST, but nothing.

Some of you have had the same problem? Or maybe know how to fix it? Or maybe know how to do a hard reset to stop this?


I hope you can help me. I don't know what to do...=(

Thanks a lot!!

- Thu Apr 07, 2016 5:11 am #45029 May be, while updating, the baudrate is changed to default. Try other rates.

- Fri Apr 08, 2016 2:19 am #45086 Of course, I assumed that you have done hard reset by grounding and then giving 3.3 V to the reset pin...

- Sun Apr 10, 2016 1:40 pm #45239 But some of you could know how can i reset the module to be able to send it commands? Because I'm not able to do nothing with it and I don't know what to do know!

I think I did not a hard reset because I don't know how to do it. Maybe you know how can I stop that failed firmware updating to continue workning with it?? =((