I recently bought an Honor 90, and when I charge it with the original cable, the phone gets noticeably hot, especially around the camera area. Is this normal or some kind of defect? Charging takes about two to three hours.
A slight warming during charging is completely normal, especially for modern smartphones with fast charging. The Honor 90 supports pretty powerful charging, and the process of converting electrical energy in the battery is always accompanied by heat release. The fact that it's heating up around the camera area is also explainable - all the electronic components are located close to each other, and heat from the battery and charging controller spreads throughout the housing. If the phone is just warm but not so hot that you can't hold it in your hands, there's no need to worry.
However, there are a few nuances I'd pay attention to. First, check your charging conditions - if the room is hot or the phone was already warm, it'll heat up more. Second, make sure you're using the original cable and charger that came in the box. Third-party chargers can output unstable current, which leads to excessive heating. Also try turning off background processes and don't use your phone while it's charging - this will reduce heat generation.
If the phone heats up so much that it's uncomfortable to touch, or if it's accompanied by strange sounds, slower charging speed, or some kind of glitches, then that's a reason to contact a service center. But based on your description, this looks like normal device behavior.
Some heating during charging is normal, especially if the phone is being used at the same time or charging quickly. The Honor 90 supports pretty powerful charging, so it gets hotter than older models. But if the phone is so hot you can't hold it in your hands, or if it's accompanied by charging cutouts - then yeah, you should contact service, there might be a problem with the battery or contacts. In the meantime, try charging it in a cool place and don't use it while it's charging - that should help.
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