novacustom/initial-deployment.md: use _full binary for 1.7.2 release

Signed-off-by: Filip Lewiński <filip.lewinski@3mdeb.com>

Author: filipleple

docs/unified/novacustom/initial-deployment.md

@@ -167,6 +167,13 @@ On your host computer, install flashrom from sources:
         6. Install Dasharo BIOS, replacing `[path]` with the path to the firmware
             image you want to flash, e.g. `novacustom_ns5x_adl_full_v1.4.0.rom`
 
+            !!! warning
+
+                Please use the `_full` binaries for the 1.7.2 release. Full binaries contain
+                all necessary blobs for platform operation. Flashing the entire chip with the
+                base binaries will result in a brick. If you insist on using a non-`_full` binary,
+                please add `--ifd -i bios` to the command below.
+
             ```bash
             flashrom -p ch341a_spi -w [path]
             ```