I travelled a lot to Dhaka, Bangladesh in the 90s, spent almost a year there in total, working on EU funded projects. Anyways, getting computers and equipment was very difficult. So we'd always bring one, not laptops, but proper stationary ones. We had all the required paperwork designating the goods as temporary items, to be re-exported. When leaving again, typically after a couple of months one would always carry a dead motherboard, or some other remains, and everything was stamped and good.