diff --git a/precompiled-trees/README.md b/precompiled-trees/README.md
index 22dfac3..3b530b5 100644
--- a/precompiled-trees/README.md
+++ b/precompiled-trees/README.md
@@ -28,23 +28,46 @@ Each folder contains a `.dtb` file, which is the compiled device tree itself, pl
 * Has the console uart, 1x I2C. 1xSPI
 * 15 unassigned GPIO pins, 3 pre-assigned to pinctl
 
+# Getting the DTB files
+Clone this repo:
+```console
+$ git clone https://github.com/easytarget/MQ-Pro-IO.git
+$ cd MQ-Pro-IO
+```
+
 # Examining the current DTB pin mappings:
 In the [tools](../tools) folder there is a python script called `list-pins.py`.
 
-To run it you need to be in that directory, then run `python3 list-pins.py MangoPi-MQ-Pro` to see a map of the current pin assignments (the same map I use in `.gpio` files in the folders above.) 
+To run it you need to be in that directory, then run:
+`python3 list-pins.py MangoPi-MQ-Pro`
+* This produces the same map I use in the documentation and `.gpio` files in the folders above.
 
-# Install and use
-Installing is simple, clone this repo on to the MQ pro and, as root, copy the desired `.dtb` file to the `/boot/dbts` folder.
+# Install the Device Tree
+Installing is, in principle, simple. 
+* Clone this repo on to the MQ pro and, as root, copy the desired `.dtb` file to the `/boot/dbts` folder.
+* Then make a soft link in the root of the /boot folder named `dtb-mqpro` that points to the file you just copied.
+```console
+$ sudo cp precompiled-trees/generic/6.8.0-31-generic.dtb /boot/dtbs/
+$ cd /boot
+$ sudo ln -s dtbs/6.8.0-31-generic.dtb dtb-mqpro
+```
 
-Then make a soft link in the root of the /boot folder named `dtb-mqpro` that points to the file you just copied.
-
-Finally, edit the `/boot/grub/grub.cfg` file to use the new DTB for the default 'Ubuntu' target.
+Finally, edit the `/boot/grub/grub.cfg` file to use the new DTB for the default 'Ubuntu' target:
+* `sudo vi /boot/grub/grub.cfg`
+* Look for the first block that begins with: `menuentry 'Ubuntu'`
+* Comment out the existing entry and add a new one:
+```console
+        # devicetree     /boot/dtb-6.8.0-31-generic
+        devicetree      /boot/dtb-mqpro
+```
 
 Reboot!
 
 After rebooting you can re-run **list-pins.py** from above to verify the new mappings.
 
-If you have errors rebooting (maybe a corrupt file if you rebuilt it etc..) you need to either boot using a USB serial adapter on the console pins and select the recover image (or edit the command and revert to the generic `.dtb`). Or remove the SD card, mount the /boot partition and edit the `grub/grub.cfg` file there.
+If you have errors rebooting (maybe a corrupt file if you rebuilt it etc..) you need to either boot using a USB serial adapter on the console pins and select the recovery image,  or, in grub, edit the command and revert to the generic `/boot/dtb`. 
+As a last resort you may have to remove the SD card, mount the `/boot` partition and edit `grub/grub.cfg` there.
+* !! The 'default' dtb supplied by ubuntu should always be softlinked as `/boot/dtb`, so putting `devicetree      /boot/dtb` in grub in place of the custom `.dtb` should work and is predictable (no version numbers etc).
 
 ## Making Permanent:
 (As Root) Edit: `/etc/grub.d/10_linux` line 458 to say:
@@ -62,3 +85,4 @@ Note that we are adding `dtb-mqpro` to the start of this list, this is the 'sear
     fi
   done
 ```
+When Grub next rebuilds it *should* make the new DTB the default for all entries now. (this is untested, as of this writing there have not been any kernel upgrades to test them on)