How-toSample story
PTA approval, explained in plain words
What it means, what it costs and what happens if you skip it.
If you bring a phone from abroad, it needs to be registered before it works on local networks for long.
Registration fees depend on the phone's value and can be a large share of the price. Check the current fee before you buy abroad, not after.
Unregistered phones still work on Wi-Fi. For many people that is enough for a second phone, but not for a main one.
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