diff --git a/troubleshooting/uefi-troubleshooting.md b/troubleshooting/uefi-troubleshooting.md
index 46b19886..e36e28ad 100644
--- a/troubleshooting/uefi-troubleshooting.md
+++ b/troubleshooting/uefi-troubleshooting.md
@@ -7,6 +7,23 @@ permalink: /doc/uefi-troubleshooting/
 Troubleshooting UEFI related problems
 ========================================
 
+Change installer kernel parameters in UEFI
+---------------------
+
+If you've installed successfully in legacy mode but had to change some kernel parameters for it to work, you should try installing in UEFI mode with the same parameters.
+
+**Change the xen configuration on a USB media**
+01. Attach the usb disk, mount the EFI partition (second partition available on the disk) 
+02. Edit your xen config (`xen.cfg/BOOTX64.cfg`) changing the `kernel` key to add your kernel parameters on the boot entry of your choice
+03. Install using your modified boot entry
+
+**Change xen configuration directly in an iso image**
+01. Get EFI partition boundaries `parted Qubes-R4.0-rc4-x86_64.iso unit B print`
+02. Using the start address and the size of the EFI partition, setup a loop device for it `sudo losetup -o 524288 --sizelimit 30562304 /dev/loop0 Qubes-R4.0-rc4-x86_64.iso`
+03. Mount the loop device `sudo mount /dev/loop0 /mnt`
+04. Edit `EFI/BOOT/BOOTX64.cfg` to add your params to the `kernel` configuration key
+05. Save your changes, unmount and dd to usb device
+
 
 Cannot start installation, installation completes successfully but then BIOS loops at boot device selection, hangs at four penguins after choosing "Test media and install Qubes OS" in GRUB menu
 ---------------------