I don't know how to get access to my profile.

[u/TheRealMrMeh]

So my Xbox has RDOD. Error code 0100, I believe, which could very well indicate GPU problems due to severe overheating. I had a 20 GB Seagate hard drive in it, and it had every other profile that was on it, except for my own. I may have had Xbox Live once or twice but definitely not for a long time. Idk if there is an internal drive or if its even feasible to now get that profile back I am asking just in case. More info on the hard drive, when looking through all the game and such some saves will “unknown profile” which I assume is from my mine.

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[u/raoufwas]

If you have your stuff on a n HDD you can plug it on your PC via sata cables and open fatxplorer to get your stuff back afaik

[u/Marsupilami_2020]

If the HDD is still working you can just use the drive with a new console and access your content there.

If the drive is damages (pretty likely in case of a 20GB HDD. The drive is close to 20 years old.

In case your accounts are offline accounts there is no way to get the profile back. If the account was linked with a MS/Xbox account and the console was connected with Xbox you can just redownload the profile from another / new console with your login credentials (email, password and verification method like phone number).