---
title: "Apple SSD is no longer being detected after erasure with Drive Eraser"
canonical: "https://support.blancco.com/space/KB/11635335/Apple%20SSD%20is%20no%20longer%20being%20detected%20after%20erasure%20with%20Drive%20Eraser"
format: markdown
---
| **Created date** | **Updated date** | **Affects version** | **Fix version** |
| --- | --- | --- | --- |
| 11/11/2019 | 2/28/2020 | Drive Eraser - all | N/A |

## Description

<span style="color: #333333">Apple branded SSD with disk model SM</span>*<span style="color: #333333">xxxx</span>*<span style="color: #333333">F SSDs (where </span>*<span style="color: #333333">xxxx</span>*<span style="color: #333333"> represents the capacity of the disk) is no longer detected by the device and can no longer be used after the erasure.</span>

<span style="color: #333333">Issue is known to happen with following combination of disk model and disk firmware versions:</span>

<span style="color: #333333">Known affected disk models:</span>

- <span style="color: #333333">APPLE SSD SM1024F</span>
- <span style="color: #333333">APPLE SSD SM0512F</span>
- <span style="color: #333333">APPLE SSD SM0256F</span>
- <span style="color: #333333">APPLE SSD SM0128F</span>

<span style="color: #333333">Known affected firmware versions:</span>

- <span style="color: #333333">UXM6JA1Q</span>
- <span style="color: #333333">UXM2JA1Q</span>
- <span style="color: #333333">UXM2EA1Q</span>

<span style="color: #333333">Below table lists some of the affected system models were you can expect to see this issue. Please note that this is not full list of affected hardware and it is possible to see this issue with models not listed below.</span>

| <span style="color: #333333">**Disk model**</span> | <span style="color: #333333">**System manufacturer**</span> | <span style="color: #333333">**System model**</span> | <span style="color: #333333">**Disk firmware revision**</span> |
| --- | --- | --- | --- |
| <span style="color: #333333">APPLE SSD SM0256F</span> | <span style="color: #333333">Apple Inc.</span> | <span style="color: #333333">MacBookAir6,1</span> | <span style="color: #333333">UXM2JA1Q</span> |
| <span style="color: #333333">APPLE SSD SM0512F</span> | <span style="color: #333333">Apple Inc.</span> | <span style="color: #333333">MacBookAir7,2</span> | <span style="color: #333333">UXM2JA1Q</span> |
| <span style="color: #333333">APPLE SSD SM0256F</span> | <span style="color: #333333">Apple Inc.</span> | <span style="color: #333333">MacBookPro11,1</span> | <span style="color: #333333">UXM2JA1Q</span> |
| <span style="color: #333333">APPLE SSD SM0512F</span> | <span style="color: #333333">Apple Inc.</span> | <span style="color: #333333">MacBookPro11,2</span> | <span style="color: #333333">UXM2JA1Q</span> |
| <span style="color: #333333">APPLE SSD SM1024F</span> | <span style="color: #333333">Apple Inc.</span> | <span style="color: #333333">MacBookPro11,3</span> | <span style="color: #333333">UXM6JA1Q</span> |
| <span style="color: #333333">APPLE SSD SM0512F</span> | <span style="color: #333333">Apple Inc.</span> | <span style="color: #333333">MacBookPro12,1</span> | <span style="color: #333333">UXM2JA1Q</span> |
| <span style="color: #333333">APPLE SSD SM1024F</span> | <span style="color: #333333">Apple Inc.</span> | <span style="color: #333333">iMac14,2</span> | <span style="color: #333333">N/A</span> |

## Cause

<span style="color: #333333">This issue is caused by non-standard firmware available on these SSDs. Affected drives are not capable of executing "</span>*<span style="color: #333333">Secure Erase</span>*<span style="color: #333333">" or "</span>*<span style="color: #333333">Enhanced Secure Erase</span>*<span style="color: #333333">" firmware based commands properly, which leads to a scenario where the disk is no longer being detected after these command have been executed.</span>

## Resolution

<span style="color: #333333">In order to prevent this issue from occurring it is recommended to use erasure settings which won't utilize Secure Erase/Enhanced Secure Erase as part of the erasure. This can be achieved by using for example NIST 800-88 Purge.</span>



> ℹ️ Note that if the automatic fallback from <span style="color: #333333">NIST 800-88 Purge</span> to NIST 800-88 Clear is used in the image, the firmware based command <span style="color: #333333">"</span>*<span style="color: #333333">Secure Erase</span>*<span style="color: #333333">" </span>is performed and issue will appear. This is caused by the used commands of NIST 800-88 Clear.
> ℹ️ 
> ℹ️ In this cases it is suggested to use a non firmware based standard like Aperiodic Random Overwrite.