Closing wifi connection then esp8266 doesn't connect anymore.

[Alberto]

Module ESP01
AT version: 050.0.0 (sept. 18-2015/20:55:38)
SDK version: 1.40
Compile time: (sept. 18-2015/21:46:52)

If I disconnect from wifi using "AT+CWQAP" the module doesn't connect anymore (even with soft reset or hard reset)
The code error is "1" (timeout)

The only way to have the module to reconect to the AP is a restore "AT+RESTORE"

I have several esp01 modules so I uploaded the same firmware to three modules and all behave the same.

Is this a bug?
Can be corrected?
Thank you for attention.
Kind regards
Alberto

[ESP_Faye]

Hi,

Please use Espressif Official Flash download tool.
And download AT firmware according to the "readme.txt".

If your flash is 512KBytes (4Mbits), can only use non-boot mode :

download
eagle.flash.bin 0x00000
eagle.irom0text.bin 0x40000
blank.bin
Flash size 4Mbit: 0x3e000 & 0x7e000
esp_init_data_default.bin (optional)
Flash size 4Mbit: 0x7c000

*NOTICE*:
UPDATE is not supported in non-boot mode

The with-boot mode needs flash size to be 1MBytes (8Mbits) or larger.

Documentation about AT commands

[Alberto]

Device has been flashed as per your instruction but problem is still there!
Now since I use 9600 baud for UART communication, I cannot use AT+RESTORE because after this command ESP8266 UART baud rate returns to 11500 and doesn't comunicate any more with MCU.

I need an AT+RESTORE that doesn't change the baud rate (could be a light restore) or a new firmware without this bug!

Thank you for the attention.

Alberto

[ESP_Faye]

Hi,

Sorry that we can not duplicate your problem.

Can you provide the capture picture of Flash Download Tool while downloading ?