As a native speaker I think its "贤", just rotated right by 90 degree.

Yes, I agree. Looks exactly like 贤. The irony is that this character means “virtuous, worthy, good; able”, but you’ve received a rather un-virtuous counterfeit chip.

Many thanks, I'll update the post later tonight with the findings from the comments here.

I tried drawing it in https://www.qhanzi.com/ and it looks a bit like 防 which apparently means "defend".

Or maybe more like 阮 which means "Ruan" (maybe that's a person's name?).

Checked with a Chinese native speaker who also thinks it's 阮.

I think it goes to "贤". As a native speaker I think "阮"'s possible but unlikely, since most people will write the "阝" part more straight.

I don't know Chinese but Google translate says "贤" means "virtuous", "worthy", or "able".

Is that word plausibly used to refer to devices to mean "it works" or "it passes tests"?

It's more likely to be the name of the QA person that checked it. Writing a literal "OK" is so much easier if they just wanted it mark it as good otherwise.

Ah! Thanks. I tried several different visual search methods whilst writing those post but was coming up blank.

I thought I'd check with GPT-4 vision preview just to see what it could make of the character. Unfortunately, it couldn't figure it out.

> The logographic character you're referring to appears to be a Chinese character, but it's not clearly written which makes it difficult to identify with certainty.

(There was more to the response, but it was more about why the character might be written there)

Yea, I tried a couple of AIs on it whilst writing that post and didn't get anywhere. It does look like elsewhere in the comments here people have maybe figured it out though.

I'm stumped. I've never been good with handwritten Chinese, but even rotating it I can't match it to any valid character. The closest I got was 阹 which means "to surround"

Did you try viewing it in a mirror? Sometimes that helps.

I was wondering if it could be Devanagari or something similar based on that strong horizontal line.