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S8 новейший флагманский смартфон компании Samsung, представленный на Unpacked 2017 в апреле.

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Galaxy s8 Why does the signals are poor after screen replacement?

So i bought 2 broken screen galaxy s8 from different people. Then i replaced the screens but after i replaced the screens the sim card signal became very poor. At home i can call people. But at some places i get no signals even though my other phones show full signal at the same place. Also when i am at home or somewhere else i receive messages really late and i also sometimes don’t receive some calls. When i call someone when there are full signals the call works but then if i use data it is too slow. And sometimes even if the calls work the data doesn’t work. I know its weird that i have the same problem on both phones. I tried replacing the charging port and the antenna cables but still i wasn’t able to fix it. Please tell me how can i fix it

Ответ на этот вопрос У меня та же проблема

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Hi,

Don’t know the phone but looking at the ifixit Samsung Galaxy S8 Motherboard Replacement guide, at Step.21 it mentions the two antenna cables which I assume that you replaced and at Step.22 it mentions the antenna ribbon cable.

Did you check to see if the ribbon cable was connected properly or even if it is there (see Step.31-32 Samsung Galaxy S8 I/O Daughterboard Replacement guide)?

Samsung Galaxy S8 Motherboard Изображение

Инструкция

Samsung Galaxy S8 Motherboard Replacement

Сложность:

Модерировать

30 minutes - 1 hour

Samsung Galaxy S8 I/O Daughterboard Изображение

Инструкция

Samsung Galaxy S8 I/O Daughterboard Replacement

Сложность:

Модерировать

40 minutes - 2 hours

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Yep before there were absolutely no signals so i placed the ribbon cable correctly then the signals appeared and i was able to call text but then this problem of losing signals appeared. I have correctly connected the ribbon cable, antenna and the antenna ribbon.

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@Rocket Tech ,

So this is happening on both phones?

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Rocket Tech будет вечно благодарен.
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