My phone is discharging while off?

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iPhone 7

发售于2016年9月16日。型号为1660、1778。有 GSM 或者 CDMA 网络制式可选。提供32、128或者256GB 的存储空间。提供玫瑰金色、金色、银色、黑色和亮黑色。

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Cristian Isbej @cisbej

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发帖于: 2019年1月8日

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My phone is discharging while off?

I few days ago noticed my phone starting having poor antenna reception, but the battery life was ok. Then, I noticed the on the bottom left corner of the phone, left of a home button, it I started getting really hot. So the battery drain very fast, 2 hrs. But it even get hotter while completely smiths off, draining the battery from 60% to 0 in about 3 hrs.

My simple guest while be the battery, but I believe it may be the module that control the battery charge that has a short cut or the antenna that is failing.

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Hi. The left side I refere to , it is the left side of the escreen or right side once opened from its back view. Where the speaker is.

由 Cristian Isbej 完成的 2019年1月8日

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Ben @benjamen50

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Let’s check the battery health if you haven’t already. If the phone does not have iOS 12 or higher installed make sure you update the phone via phone settings > software update, 3UTools on computer (Windows application from 3u.com) or via iTunes on computer.

Then you can check battery health via Settings > Battery > Battery health or under 3UTools or CoconutBattery (on MacOS).

Heating up on bottom left corner is where the taptic engine (responsible for vibration feedback from home button + notifications), where the left main microphone is and the barometric sensor (pressure sensor). If microphone works fine during calls and you can feel feedback from taptic engine module then I would say either it needs a replacement battery or it actually could have liquid damage inside the phone which you’ll need to open the phone up to check.

I have linked guide on how to open phone if needed, follow up to step 19 of this guide:

iPhone 7屏幕总成更换

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Thanks for your very quick reply.

iOS 12.1.2 and battery Battery Health 86%. Liquid inside is impossible, it has not been exposed at all.

The more frecuente syntoms is No Service, bad signal connection.

Can I run any test to find out where is the problem?

Why is still draining the battery while the phone complete switch off?

由 Cristian Isbej 完成的 2019年1月8日

The side heating is the right side, opposite to the battery from its back view.

由 Cristian Isbej 完成的 2019年1月8日

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Hi. The left side I refere to , it is the left side of the escreen or right side once opened from its back view. Where the speaker is. — Cristian Isbej
Thanks for your very quick reply.

iOS 12.1.2 and battery Battery Health 86%. Liquid inside is impossible, it has not been exposed at all.

The more frecuente syntoms is No Service, bad signal connection.

Can I run any test to find out where is the problem?

Why is still draining the battery while the phone complete switch off? — Cristian Isbej
The side heating is the right side, opposite to the battery from its back view. — Cristian Isbej

iPhone 7

My phone is discharging while off?

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