Nano ESP32 not connecting to the Cloud

Hello everyone,

as the title suggests, I recently bought an Arduino Nano ESP32 and presoldered it before any testing. I tried applying a 9V battery to it and the power LED turned on so I continued to press on. After completing the solder part, I turned the thing on and went ahead to add the board as a new Device in Arduino Cloud (I use all of the programming tools directly on the web version, and the Arduino Create Agent is up and running properly (checked everything)). It told me there is no device detected and to do the famous following 3 steps, which I followed, but to no avail. Also an independent Windows notification jumps in, saying that the connected device is not recognized and is probably malfunctioning if after trying to reconnecting it it still doesn't work. Now I'm here trying to figure out why this is as it is. Could it be the soldering part? Was I too slow? The solder did turn liquid quite slowly I must admit. As for the connections, I assure you that they're all connected properly and no pins are interconnected. Only the power indicator LED turns on and the cable has been confirmed to be able to successfully upload code before so it's not power-only. Please help, this is my 2nd Nano ESP32 board and I really don't want it to have to be thrown out like the 1st one, which got shorted cause of accidental high voltage application (I'm kinda stupid).

Thanks to whomever might take out their time to read and help :slight_smile:

Hello @mateo69; that kind of Windows message is IIRC a major USB communication issue and most often due to a faulty cable. If the cable is good, and you get that notification when the board is disconnected from your hardware and in bootloader update mode (B1+GND short, same you tried with the other one) ... I have no good news either. :cry:

I assume something happened among all the steps you described; for example, 9V is high enough to damage it if it was by any chance applied to anything else than the VIN pin.
Did the RGB LED ever blink when you powered the board? What does it do now when connected?

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Yeah I just bought a new one. I'm just an idiot and shorted the board by running reverse polarity through GND and Vin :confused:

Thank you for the reply though, it's still appreciated!

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