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Console stuck activating Dev Mode for individual account 0x8015963D

Daniel McGuire 0 Reputation points
2026-03-08T03:58:15.37+00:00

I cannot activate developer mode

infinite loading on aka.ms/activatexbox when trying to activate

0x8015963D in hidden menu that works for some people.

Tried:

  • Power cycles (10+ min unplug)
  • Reinstall Xbox Dev Mode app (green one)
  • Hidden menu (LB+RB+LT+RT)
  • 80GB free storage
  • Wired network, cleared alt MAC, tried my office network even

Brand new account

First time attempting any of this

Might i add that the support directs you to paid 499.99 support

Thanks for this xbox i have no use for

Developer technologies | Universal Windows Platform (UWP)

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  1. Jay Pham (WICLOUD CORPORATION) 3,690 Reputation points Microsoft External Staff Moderator
    2026-03-09T07:54:46.9033333+00:00

    Hi @Daniel McGuire ,

    The 0x8015963D error is related to a server‑side authentication problem with Microsoft Developer accounts.

    According to similar cases discussed in the community, here are two workarounds you may try:

    Workaround 1: Activate via the Hidden Menu

    • Go to Settings > System > Console info.
    • Press these 4 buttons simultaneously on your controller: LB + RB + LT + RT.
    • A hidden Developer Settings menu will appear. Try clicking the Activate button from there.

    Workaround 2: Clear Alternate MAC Address

    • Go to Settings > General > Network settings > Advanced settings.
    • Select Alternate MAC address > Clear and restart your console. (Use a wired connection if possible).

    Note: If neither of these methods works, you can wait 24-48 hours. Often, this server-side issue resolves itself automatically, and you'll be able to activate your console without needing to do anything else.

    If you were able to resolve the issue during troubleshooting, I would greatly appreciate it if you could share your feedback by interacting with the system or leaving a comment.   

    Thank you. 

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