Hi,
I recently had to buy a new ESP32-POE-ISO as I mistakenly applied 12v to my previous one for a few seconds and it no longer functions (although LEDs do come on).
After unpacking the new unit I noticed it had an extra component ("570F KE") connecting capacitor C26+ to the black box component (DCDC1 I think). I couldn't find a match online to the extra component "570F KE".
I was wondering if this component was to be expected or if I should return this unit? I don't really want something that someone has modified.
Some images (don't seem to open using [img] tags)
https://drive.google.com/file/d/1ccucp0A1oC0FB8-1nU1VaNSfdpXIjaSX/view?usp=sharing
https://drive.google.com/file/d/1Ahccl6cMLyJu11ljA_Rqvy3IGnk5gCB4/view?usp=sharing
https://drive.google.com/file/d/1dgueAAM4adKMQBRIsOjPSFV30N7dl61-/view?usp=sharing
Note: I didn't purchase directly from Olimex, but another store, in Germany.
No, you are good. This is a factory patch applied in hardware revision M1. It is mentioned in the hardware revision changes:
https://github.com/OLIMEX/ESP32-POE-ISO/blob/master/HARDWARE/Hardware-changes-log.txt
Where did you apply 12V to? Maybe it can be fixed by changing a component or two.
Thanks for the response, happy to hear I don't have to send it back :)
For the 12v issue, I applied it to the 5v pin, no other power would have been applied from usb or ethernet.