Why the left side of my screen is getting warm
when i use LENOVO HORIZON 2 for more than 1 hour, though it is plugged in with charger , the screen become worm from the left side
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I would say either your battery is getting warm from charging or cpu and or gpu is located on that side of the device and is heating up because of use also having it plugged in will not reduce heat output
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Looking at the iFixit battery replacement guide for your device, Lenovo Horizon 2s Battery Replacement , I can see that the battery is located primarily on the left hand side of the device behind the screen and the logic board is on the right side.
The heat is most likely coming from the battery. Batteries do get warm while charging, even warmer when charging quickly, and can get hot or very hot as they get old. Typically a device will use power from the charger to run while charging the battery but not always. If it uses the battery to run the device while charging, this creates a lot of load on the battery and you should probably put it down or turn it off while charging. Something I’ve heard of happening moreso with wireless charging technology and drastically reduces the life expectancy of the battery.
Are you using the charger and cable that came with the device? This is highly recommended. Aftermarket or cheap chargers can do permanent damage to your device. Also, it may help performance as well to take steps in reducing battery usage on the Lenovo such as lowering screen brightness to a comfortable level.
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phone temperature rises so the most probable culprits are either the battery, processor, or screen. I suggest you to go for a full diagnosis from an expert, You can contact them https://gadgetgenie.com/ and they can suggest you something best.
Hope this will be helpful.
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