ExpressLink ESP board update loop

Question

I have two ESP Expresslink boards and have never managed to get either connected to AWS. I do not use Arduino or STM32s so most of the documentation is virtually useless.

I have finally got back to looking at them again and both are stuck "Waiting for MQTT agent to be connected." as they attempt to complete an update. They are both running FW 1.0.20 so definitely need updating.

How to do I recover them?

BillyTheFish · Accepted Answer

I took another approach and thought like a hardware engineer, I made a direct physical connection via the UART to the MCU and flashed the firmware that way.

Greg_B · Answer

Hi. It's not clear what you have or haven't done in the past to try to get this connected. Have you followed the steps here? https://docs.aws.amazon.com/iot-expresslink/latest/gettingstartedguide/elgsg.html

You need to get it connected so that the update can occur.

Dhaval Gujar · Answer

Hi, to extend what Greg said, can you please try upgrading the board using [OTW](https://github.com/espressif/esp-aws-expresslink-eval#92-carrying-out-an-over-the-wire-otw-upgrade)?

If you face issues with that, or if you are still not able to connect after upgrading to the latest release, please provide additional logs here and we would be able to help you out better.

~  
Dhaval Gujar (Espressif)

ExpressLink ESP board update loop

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