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I recently obtained a Pi Zero W and there was what looks to be a sharpie mark besides the trapezoidal antenna beneath the Broadcom chip and besides the micro usb port. I subsequently went on google images and noticed that a number Pi Zero W boards also sport this marking. Out of curiosity, does anyone happen to know the reason behind these markings? Are they perhaps used during quality control testing to denote that a board has passed inspections?

  • What do you mean by "sharpie"? Do you mean the green triangle thing? ( thepihut.com/products/raspberry-pi-zero-w ), (briandorey.com/post/raspberry-pi-zero-w-external-antenna-mod ) – tlfong01 Jul 21 at 2:25
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    sharpie is a brand name for a felt tipped marker ... sharpie.com – jsotola Jul 21 at 2:54
  • @jsotola, Thanks a lot. So I should look for a "Sharpie mark" beside the trapezoidal antenna. But I did not see any marking by a Sharpie felt pen. And the "triangle" thing I saw should be the "trapezoidal". BTW, I never heard of "Sharpie". I only know the classy Japan "Zebra" and "Pilot" ball/felt pens. I also know the ugly looking BiC ball pen. – tlfong01 Jul 21 at 3:52
  • Oh right. I was referring to permanent markers. In the States they're commonly referred to as Sharpies, since that's the most common brand. – Morgan087 Jul 21 at 14:03

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