Not sure if this is a wider product quality issue, but I have had two athom smart plugs (UK version) fail over the last few days, going in to a boot cycle and then shortly after failing to boot at all, with only electrical noise coming from the device. Both plugs running esphome 2021-11-04.
I have quite a few others that are still working fine at the moment though.
Your link https://amiroofingcontractors.com/offer is not relevant to the discussion about Athom UK plug failures. If you need a link to be included, it should be related to smart plugs, ESPHome troubleshooting, or hardware diagnostics. Let me know how you’d like to proceed!
That os a good piece of work, Zygfryd Homonto. Now, if Athom would respond to my emails requesting replacement I'd maybe buy some of theier other products.
I agree with your comment "Shame on Athom anyway".
I found the culprit: Athom is using this IC for powering the board:
And then, the voltage from output goes to AMS1117 to be changed to 3.3V.
Unfortunately, the output of KP3210SG was below 3V so poor AMS1117 was stealing another 1V as dropout - finally on ESP it was just about 2V - way too low for the board to work.
I changed the capacitor (470u/10) and on the output I got 5V.
So from there everything started working as AMS1117 was giving proper 3.3V.
So, either they did not manage properly the IC KP3210SG, or any of the "around it" elements got old (i.e. the inductor or capacitors) or anything else - or maybe even the IC KP3210SG itself is ... poor quality - the biggest problem is: OPENING AND CLOSING the plug - since - unlike Sonoff thingis - you need to almost destroy the plug to open it, once repaired it does not look nice anymore.
I was lucky today with a bit of hot gun (to open) and a bit of glue (to close) but again: it does not look nice anymore.
That is all - I repaired today 2 out of many - I will try to repair all.
Shame on Athom anyway.
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28 bought, 8 failed
EDIT: I talked to. Athom guys on Ali and they replaced all 8 for free, and they sent me the version 2 - so not that bad considering. Lets see if v2 is better.
I've had the same issue with these. I bought 6 and 4 have failed. Two were replaced FOC with the V2 version and these seem to be fine. It seems to be an acknowledged known issue, hence V2, but I'm not getting much help in replacing my faulty ones now.