Hi imagery liu,
You seem very careful from your post, so I understand why you’re looking for an official answer before giving up on recovery. However, it's worth noting that Windows Mobile is a discontinued platform for many years, it's unlikely that you can get direct support on it now.
In addition, Microsoft Q&A is just a public user-to-user support forum. Contributors here do not have access to Microsoft's internal systems, and cannot escalate to any engineering teams. Responses here are limited to available documentation about the feature.
Just based on the available historical information about Windows Mobile 6 Storage Card Encryption, there does not appear to be any publicly documented method for recovery:
- No key escrow or recovery mechanism was provided.
- Encryption keys were stored only on the device.
- Loss of the device or keys prevents decryption of
.mencfiles. - The
.mencformat was designed for device‑specific decryption by the original device.
So although I cannot confirm it, I personally don't think there's a Microsoft-supported recovery method when the original device and keys are unavailable. You may reach out to Microsoft Support, but be prepared that the answer might be the same.
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