When I try to deploy to an iPhone 6 running iOS 12.5.7 I get: error MT1006: Could not install the application ... on the device 'iPwn Nova': Device is invalid (0xe8000084).

Question

When I try to deploy to an iPhone 6 running iOS 12.5.7 I get: error MT1006: Could not install the application ... on the device 'iPwn Nova': Device is invalid (0xe8000084).

Kevin Anderson 0

A couple of my apps and also a brand new created test app all get the same error when I try to deploy to either of my iPhone 6 devices. It also takes a very long time for the error to finally occur and the build to stop. I can say the following things that rule out several issues:

I can deploy just fine to my 2020 iPhone SE
I double, triple checked that my iPhone 6 devices are registered on Dev Center as test devices and included in the provisioning profile and a valid certificate is being used and the profile is associated with the cert
I tried every combination I can find of automatic and manual provisioning and I get the same error
When I make a new empty native iOS app in XCode I can deploy it to the iPhone 6 just fine
Once in a great while after I've cleaned and restarted and rebooted and reconnected and rebuilt etc. the deployment actually works, but never does it twice in a row

Please let me know the ___location of any logs that could help on either the Windows or Mac machine.

Kevin Anderson 0 Reputation points

2025-06-05T03:45:13.4966667+00:00

Actually doing the deployment straight to the iPhone 6 from XCode was the last thing I did, and now my regular deployments from VS on Windows work great. Deploying from XCode must have fixed something.
Saideep Anchuri 8,320 Reputation points Microsoft External Staff Moderator

2025-06-05T04:57:57.26+00:00

Hi Kevin Anderson

Glad to hear that the issue has been resolved.As an Original Poster(you) cannot accept his own answer. Can I repost your answer so that you will be able to accept the answer. Doing so will assist other community members facing similar situations in finding the right solution. Your feedback is highly valuable to us. Thank you!
Saideep Anchuri 8,320 Reputation points Microsoft External Staff Moderator

2025-06-07T08:26:35.6+00:00

Hi Kevin Anderson

Did you get any chance to check above response.

Thank You.
Kevin Anderson 0 Reputation points

2025-06-09T19:47:05.7+00:00

I don't know if deploying with XCode actually fixed the problem, because the problem has come back and now deploying with XCode doesn't help. I don't know what did fix the problem and I'm stuck again.
Kevin Anderson 0 Reputation points

2025-06-10T03:23:36.61+00:00

Now it's started working again a few hours later. No idea why. Great.
Saideep Anchuri 8,320 Reputation points Microsoft External Staff Moderator

2025-06-10T03:46:06.27+00:00

Hi Kevin Anderson

Glad to hear that the issue has been resolved.As an Original Poster(you) cannot accept his own answer. Can I repost your answer so that you will be able to accept the answer. Doing so will assist other community members facing similar situations in finding the right solution. Your feedback is highly valuable to us. Thank you!
Kevin Anderson 0 Reputation points

2025-06-15T03:10:06.0633333+00:00

Since I last posted here the problem came back and went away again. I have no idea what the cause was. My answer is not an answer so I'm going to deprecate it to a comment.

1 answer

Your answer

Kevin Anderson 0 Reputation points

2025-06-05T03:45:13.4966667+00:00

Actually doing the deployment straight to the iPhone 6 from XCode was the last thing I did, and now my regular deployments from VS on Windows work great. Deploying from XCode must have fixed something.
Saideep Anchuri 8,320 Reputation points Microsoft External Staff Moderator

2025-06-05T04:57:57.26+00:00

Hi Kevin Anderson

Glad to hear that the issue has been resolved.As an Original Poster(you) cannot accept his own answer. Can I repost your answer so that you will be able to accept the answer. Doing so will assist other community members facing similar situations in finding the right solution. Your feedback is highly valuable to us. Thank you!
Saideep Anchuri 8,320 Reputation points Microsoft External Staff Moderator

2025-06-07T08:26:35.6+00:00

Hi Kevin Anderson

Did you get any chance to check above response.

Thank You.
Kevin Anderson 0 Reputation points

2025-06-09T19:47:05.7+00:00

I don't know if deploying with XCode actually fixed the problem, because the problem has come back and now deploying with XCode doesn't help. I don't know what did fix the problem and I'm stuck again.
Kevin Anderson 0 Reputation points

2025-06-10T03:23:36.61+00:00

Now it's started working again a few hours later. No idea why. Great.
Saideep Anchuri 8,320 Reputation points Microsoft External Staff Moderator

2025-06-10T03:46:06.27+00:00

Hi Kevin Anderson

Glad to hear that the issue has been resolved.As an Original Poster(you) cannot accept his own answer. Can I repost your answer so that you will be able to accept the answer. Doing so will assist other community members facing similar situations in finding the right solution. Your feedback is highly valuable to us. Thank you!
Kevin Anderson 0 Reputation points

2025-06-15T03:10:06.0633333+00:00

Since I last posted here the problem came back and went away again. I have no idea what the cause was. My answer is not an answer so I'm going to deprecate it to a comment.

Answer 1

Saideep Anchuri 8,320 Microsoft External Staff Moderator

Hi Kevin Anderson

I'm glad that you were able to resolve your issue and thank you for posting your solution so that others experiencing the same thing can easily reference this! Since the Microsoft Q&A community has a policy that "The question author cannot accept their own answer. They can only accept answers by others ", I'll repost your solution in case you'd like to accept the answer.

Ask: When I try to deploy to an iPhone 6 running iOS 12.5.7 I get: error MT1006: Could not install the application ... on the device 'iPwn Nova': Device is invalid (0xe8000084).

Solution: The issue is resolved. Actually doing the deployment straight to the iPhone 6 from XCode was the last thing I did, and now my regular deployments from VS on Windows work great. Deploying from XCode must have fixed something

If I missed anything please let me know and I'd be happy to add it to my answer, or feel free to comment below with any additional information.

If you have any other questions, please let me know. Thank you again for your time and patience throughout this issue.

Please don’t forget to Accept Answer and Yes for "was this answer helpful" wherever the information provided helps you, this can be beneficial to other community members.

Thank You.

Saideep Anchuri 8,320 Reputation points Microsoft External Staff Moderator

2025-06-10T06:04:07.81+00:00

Hi Kevin Anderson

Could please accept the answer.

Thank you.
Saideep Anchuri 8,320 Reputation points Microsoft External Staff Moderator

2025-06-11T06:49:43.8166667+00:00

Hi Kevin Anderson

Did You get any chance check above response.

Thank You.
Kevin Anderson 0 Reputation points

2025-06-15T03:10:52.73+00:00

This is not the answer. There is no answer yet. The problem comes and goes as it pleases.

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When I try to deploy to an iPhone 6 running iOS 12.5.7 I get: error MT1006: Could not install the application ... on the device 'iPwn Nova': Device is invalid (0xe8000084).

1 answer

Your answer