No Service after Downgrade to ios 6.1.3 using 3uTools

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ChewMeo06
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Joined: 03 May 2017 18:35
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No Service after Downgrade to ios 6.1.3 using 3uTools

Postby ChewMeo06 » 03 May 2017 18:51

As I mention in the name on this topic, after successfully tethered downgrade to iOS 6.1.3 using 3uTools, the iPhone says No Service on the top-left corner. I'd try every method on the Internet but nothing works. Before downgrade, my iPhone runs on iOS 7.1.2 works pecfectly on my career.
Please help me! I really appreciate anyone that could helps me. My iPhone is a iPhone 4, baseband are 04.12.09 and believe me, I installed Ultrasn0w and it didn't works.

Grace Liu
Posts: 537
Joined: 20 Oct 2016 09:33
like: 65

Re: No Service after Downgrade to ios 6.1.3 using 3uTools

Postby Grace Liu » 04 May 2017 09:28

ChewMeo06 wrote:As I mention in the name on this topic, after successfully tethered downgrade to iOS 6.1.3 using 3uTools, the iPhone says No Service on the top-left corner. I'd try every method on the Internet but nothing works. Before downgrade, my iPhone runs on iOS 7.1.2 works pecfectly on my career.
Please help me! I really appreciate anyone that could helps me. My iPhone is a iPhone 4, baseband are 04.12.09 and believe me, I installed Ultrasn0w and it didn't works.


Hello, when you downgrade to 6.1.3 from 7.1.2, your device will have no service. Because when you flash with 3uTools, it skipped the activation step. And if you upgrade back to 7.1.2, your iPhone will become normal.

vinana
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Joined: 14 May 2017 00:34
like: 3

Re: No Service after Downgrade to ios 6.1.3 using 3uTools

Postby vinana » 15 May 2017 18:46

hi

Grace Liu
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Joined: 20 Oct 2016 09:33
like: 65

Re: No Service after Downgrade to ios 6.1.3 using 3uTools

Postby Grace Liu » 16 May 2017 08:59

vinana wrote:hi

Hello, dear. Can I help you?

komshi82
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Joined: 02 Dec 2017 20:38
like: 0

Re: No Service after Downgrade to ios 6.1.3 using 3uTools

Postby komshi82 » 03 Dec 2017 01:51

and I have the same problem, but the even bigger problem is that I can not restore the system to iOS 7.1.2

Grace Liu
Posts: 537
Joined: 20 Oct 2016 09:33
like: 65

Re: No Service after Downgrade to ios 6.1.3 using 3uTools

Postby Grace Liu » 04 Dec 2017 09:45

komshi82 wrote:and I have the same problem, but the even bigger problem is that I can not restore the system to iOS 7.1.2

What is your device please?

komshi82
Posts: 5
Joined: 02 Dec 2017 20:38
like: 0

Re: No Service after Downgrade to ios 6.1.3 using 3uTools

Postby komshi82 » 04 Dec 2017 17:20

Grace Liu wrote:
komshi82 wrote:and I have the same problem, but the even bigger problem is that I can not restore the system to iOS 7.1.2

What is your device please?

iPhone 4
A1332

komshi82
Posts: 5
Joined: 02 Dec 2017 20:38
like: 0

Re: No Service after Downgrade to ios 6.1.3 using 3uTools

Postby komshi82 » 04 Dec 2017 17:25

komshi82 wrote:
Grace Liu wrote:
komshi82 wrote:and I have the same problem, but the even bigger problem is that I can not restore the system to iOS 7.1.2

What is your device please?

iPhone 4
A1332

I think the biggest problem is that the phone is a jailbreak and that's why it will not return the system to iOS 7.1.2, and when i try to get it back over iTunes to somewhere and stop the boot up and as a mistake tells me an unknown reason.
How can I remove the jailbreak from the phone, can somebody help me?

Grace Liu
Posts: 537
Joined: 20 Oct 2016 09:33
like: 65

Re: No Service after Downgrade to ios 6.1.3 using 3uTools

Postby Grace Liu » 04 Dec 2017 17:54

When you downgrade your iPhone 4 to iOS 6.1.3 following this: http://www.3u.com/tutorial/articles/82/ ... thout-shsh, it would skip the activation step. So your device may have no service. When you upgrade back to iOS 7.1.2, your device would become normal.

komshi82
Posts: 5
Joined: 02 Dec 2017 20:38
like: 0

Re: No Service after Downgrade to ios 6.1.3 using 3uTools

Postby komshi82 » 10 Dec 2017 00:36

The problem is that I can not upgrade my phone to iOS7.1.2 constantly erupts my error to 80% of error number 1.


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