Unable to activate iPhone 7

Question

iPhone 7

2016年9月16日に発売。モデル番号は1660, 1778で GSM かCDMA があり。/ 32、128、 256 GB / 色はローズゴールド、ゴールド、シルバー、ブラック、ジェットブラック

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Dennis Warren @dbwarren

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投稿日: 2019年2月16日

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Unable to activate iPhone 7

Restored iPhone 7 to iOS 12.1.4, the phone was stuck on the Apple logo and this is why I had to restore it. It restored successfully and got me to the Hello screen but iTunes says “The iPhone could not be activated because the activation information could not be obtained from the device”. On the iPhone itself it says “Unable to activate” “An update is required to activate your iPhone”. How do I fix this, what could be the problem?

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Ben @benjamen50

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投稿日: 2019年2月16日

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Check the iPhone via 3UTools and see if IMEI is present. You can also check this on the activation lock screen with the little circle information symbol at the bottom right of the screen.

It sounds like a baseband fault which means it’ll require micro-soldering to fix from a reputable phone repair shop.

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I do micro soldering. The IMEI isn't present in 3U tools. Only the serial number. And on the phone in the "i". There is no other information but the serial number only

Dennis Warren さんによる2019年2月16日

Sounds like baseband PMU needs to be replaced as you've said it was stuck on apple logo and now this issue occurs.

Ben さんによる2019年2月16日

What about the Baseband CPU next to the CPU?

Dennis Warren さんによる2019年2月17日

Could be that too but you need to be careful removing it as it's near CPU that can only be reballed and not replaced as it's uniquely programmed to the phone for cellular service.

Ben さんによる2019年2月17日

Any updates? I've seen two of these in the past 24 hours.

Harold さんによる2019年5月2日

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I do micro soldering. The IMEI isn't present in 3U tools. Only the serial number. And on the phone in the "i". There is no other information but the serial number only — Dennis Warren
Sounds like baseband PMU needs to be replaced as you've said it was stuck on apple logo and now this issue occurs. — Ben
Could be that too but you need to be careful removing it as it's near CPU that can only be reballed and not replaced as it's uniquely programmed to the phone for cellular service. — Ben

Akash @thegsmsolution 評価: 2.4千 4 1 1 · Answer 1 · 2019-05-02T20:06:41-07:00

Akash @thegsmsolution

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投稿日: 2019年5月2日

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iPhone 7 series phones have serious issues.There is two component stands for that problem.

1- BBPMU

2-BBCPU

If the BBPMU is damage that the solution but if the BBCPU is shorted no any solution.

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Same problem

zeko os さんによる2020年12月10日

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iPhone 7

Unable to activate iPhone 7

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