EEVblog #799 – How To Remove Warranty Void Security Stickers

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How to remove those pesky Warranty Void If Removed security stickers, without voiding your warranty.
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EEVblog #799 – How To Remove Warranty Void Security Stickers

52 Kommentare

  1. Heating the sticker up with one of those hot air guns also works great. You can usually peel them off with a knife then if you’re carefull. Around 60-80 deg c should do the trick.

    1. Or you could add something really nefarious to someone else’s device, and they’d believe it was still the unmodified original with tamper evident seal and all.

  2. You can see reflection lines where you shoved it in, that’s why they use the reflective ones. If you heat it just a bit it should take care of that problem too, but don’t heat too much.

    1. +mikeselectricstuff Most air guns can easily burn the sticker or make the glue too soft so it will sip between the layers of the sticker and damage it, a better solution is to use one of those chemical heating bags that are used as hand / any other body part warmers you can buy them in any camping / outdoor / large retailer store.
      Activate them, put them on a sticker put a folded towel on it to prevent too much heat from escaping and wait 30min and you can peal the sticker usually with even a tooth pick.

    2. @iceblinker Hair dryers can also produce quite hot air, in most of them it’s also much less regulated than an air gun.

      Air guns heat up everything including the plastic which isn’t that good. You don’t want to heat up the sticker and the surface too much what you want is a long very moderate heating which heating patches do much better than heat guns or air dryers.

    3. +DOGMA1138 You can easily control the temperature with your finger. If it burn, it’s time to stop. So it should keep the temperature under 50°C which is well accepted by plastics. Neither had a problem with it.

    4. I use hot air from a 998d set to lowest heat setting. Just hit it with heat 10-30 seconds at a time, give it a check, rinse an repeat until the glue is soft enough/sticker peels off.

    1. +TheAnubis022 Well not all. It depends on how clever the guy is and how much is spent on it. Take a look at Dave videos on a credit card system, there are tampering mesures that are far better than that but at a greater cost than a 0.10$ sticker.

    1. +D Cheverie I’ve used a heat gun the windows COA stickers, it works, just have to be careful. I don’t think this technique works well on those COA stickers though.

    2. +EEVblog I’ve tried it a grand total of 4 times now. Failed 3 times, my observation on the successful one was that i got it hot, then left it a little bit to cool down and then used a Teflon bag to do exactly what you did. Works really well and has the benefit of not leaving those lines the normal procedure does, which are visible.

      To be mentioned that the failures were mostly impatience not procedure issue. IE i nicked the last portion and the safety filler lifted.

  3. Hi,

    I just use lighter fluid for this, soak the sticker, the more perforated the better, and it simply floats off, it’s faster and as soon as the fluid evaporates the glue is as good as new.

    There is a risk of the glue going bad but I never had this issue on a security sticker.

  4. Users in the EU should note that these stickers carry no legal power, a manufacturer can not void your warranty just for opening the case of something you own, this is only in Europe.

    1. Its not „illegal“ per se. But the practice of denying a warranty simply because a device was opened is an illegal practice. Companies need to read up on the Magnuson–Moss Warranty Act Act of 1975 which prohibits them from denying warranty claims if the customer used non-mfr parts. Nor can a mfr prohibit you from opening your hardware. Taking apart your hardware to clean it from dust (which causes heat build up and component failure) does not violate a warranty. If a company denies a claim simply because something was opened that is indeed an illegal practice. A company will only get away with this sort of practice until it bumps into someone willing to fight. Then their game is over.

  5. Quite useful, thank you.

    In Germany, the law says that doing stuff inside „inexpertly“ („unsachgemäß“) voids the warranty. Removing the sticker and taking a look alone does not fulfill that.

    Messing with the sticker really moves the burden of proof from the vendor to you. If the sticker is intact, the assumption is always that you haven’t done anything inside. If the sticker is damaged or removed, you may have to prove that what you did was not „inexpertly“ or improperly, and did not cause the malfunction that you are trying to get fixed under warranty.

    Of course, IANAL, and other countries‘ laws are different.

  6. Well done! If you can’t open it, you don’t own it.
    (Where „can’t“ could mean either „aren’t allowed to“, „are prevented from“, or „are not smart enough to“).

  7. I never did film the „warranty void if opened“ prank on my doctor when I was going in for surgery. I don’t remember his reaction but I heard it was great.

    Oh and heating the sticker also helps.

  8. I’ve just removed the stickers and any evidence they even existed (remove glue, shiny bits, etc). The warranty center just assumes (or doesn’t even bother checking) that the manufacturing plant just forgot to add one.

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