# # Fixing IMEI: Manual

- Finding the ACPI device
- Edits to the sample SSDT
- Compiling the SSDT
- Wrapping up

## # Finding the ACPI device

Finding the ACPI pathing is quite easy actually, first open your decompiled DSDT you got from Dumping the DSDT and Decompiling and Compiling with either maciASL(if in macOS) or any other text editor if in Windows or Linux(VSCode has an ACPI extension
(opens new window) that can also help).

Next, search for the following devices:

- `IMEI`
- `HECI`
- `MEI`

If none of the 3 show up, you'll need to create an SSDT-IMEI.

If one of these 3 devices show up, you do not need SSDT-IMEI! You can simply skip this page.

The rest of this page will however assume none of those 3 devices showed up.

## # Compiling the SSDT

So there's actually no edits required to SSDT-IMEI, you can either grab the source code and compile yourself or use the prebuilt

- Prebuilt SSDT-IMEI
  (opens new window)

- SSDT-IMEI's source code
  (opens new window)

With the SSDT done, you're now ready to compile the SSDT!

## # Wrapping up

Once you're done making your SSDT, either head to the next page to finish the rest of the SSDTs or head here if you're ready to wrap up:

- Cleanup