DIY computer in hand luggage - what to expect on security checks?
I have a DIY computer which looks like a 7" tablet, only thicker. The case is plastic, and the whole device is about as thick as a laptop. There are no scary wires popping out and no ticking noises, and there's no problem to turn it on upon request. Opening the case would be a problem though, since it requires a screwdriver and the components (main board, LCD, WIFI antenna, battery) are interconnected by rather fragile cables. All components used to build it are FCC certified, but not the computer as a whole, obviously; and FCC labels cannot be seen without taking it apart. It is powered by a Li-Ion battery of 11'200 mAh and 42 Wh.
Pictures are (c) Dmitry Grigoryev, distributed under CC BY
I use it (among other things) for games and movies, and would like to bring it on my trips. Do you think I may face any issues during security checks, especially considering the latest events? I live in France, so answers about European regulations and practices would be the most relevant. However, I do occasionally have international trips (about 3 per year), and any advice about other countries is welcome as well.
PS: the closest information I've found is this question, but it doesn't really help in my case. Coming to the airport one hour in advance and having the luggage checked by the police is definitively too much trouble, I'd rather bring a book on a flight instead.
Best Answer
I've travelled from the UK to many European computer/hacker festivals over the last 10 years or so, often taking strange devices similar to yours (homebrew machines, Raspberry Pi boards, 80s retro computers...) through airport and Eurostar security - and I'd say that about 80% of the time it attracts no attention at all - it just goes through the X-ray with no incident. The other 20% of the time they might give it a swab test, or ask what it is (in which case a basic answer like "a hand-held computer" is sufficient). I've never been asked to turn it on or show it working. Overall, my impression is that "strange electronics" by itself doesn't attract suspicion from security staff.
(I should mention that most of the devices I've taken don't have built-in batteries, though - I guess that might conceivably make a difference.)
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Can a computer go through airport security?
Security Rules When taking your laptop through airport security, you must either have it in a so-called "checkpoint-friendly" bag, or you'll need to remove it from your luggage entirely. If you need to remove it, place it in a scanning bin by itself to go through the X-ray machine.Do you have to remove your laptop at airport security?
The Transportation Security Administration requires that all laptops be taken out of carry-on bags and passed through scanners on their own. The rule allows screeners to get an unimpeded look at each computer, which might help them discern whether it contains hidden explosives.Can you bring a laptop in your carry-on?
TSA Laptop Rules Neither the TSA nor the airlines give much guidance on packing a computer. You can pack a laptop or even a desktop computer in your carry on or checked bags.Do they take everything out of your bag at airport security?
Unless you have TSA PreCheck, you will have to remove various items, such as liquids and electronics, from your luggage and place them in separate bins before going through security. You will also have to remove your shoes, items from pockets, jewelry, and large jackets.The Science of Airport Security
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Answer 2
I think you may face issues, especially considering the latest events. Whether justified or not, I don't know. If you miss a flight as a result, you may be able to say "it's their fault, not mine", but that doesn't really help you. I'd buy a cheap tablet instead of taking that risk.
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