Then i Go to that link as they comments . at that link
If you run ESP8266-standalone example on your ESP8266 module, it overwrites AT firmware of the module, so it won’t work as modem. Make sure your ESP is flashed with AT firmware (you can find stable firmware here, flash it to 0x00000 using this guide for example).
i search that page include file … it’s delete in 2020/6/18 - 10:42
and file name was At_firmware_bin1.54.zip
This very Important to me …
any one download this exact file (not alternative … because this file already they tested as
official blynk help…any change in version will occur 95% not working)
Very Thank
Note: This File Important Must be Upload to Blynk website and link to there
In my experience, Blynk isn’t fussy about which version of AT firmware is used for this.
It’s best to download a suitable AT .bin file for the appropriate memory size of your ESP-01 from the Espressif website along with the latest version of the flash tool.