diff --git a/doc/erko_howto_tools.txt b/doc/erko_howto_tools.txt
index b934aa032f9cdd312019fbcfb9cb881371db0d12..2ed1a047c7a79fb283c2d64f6099130986d150e8 100755
--- a/doc/erko_howto_tools.txt
+++ b/doc/erko_howto_tools.txt
@@ -287,6 +287,26 @@ Last SDPFW version used in 2022:
 *******************************************************************************
 * Flash and reboot on L2TS using tunnel to SDPTR
 *******************************************************************************
+22 feb 2024
+
+# Vanaf machine in ASTRON netwerk
+cd git/sdptr
+. ./init_sdptr.sh
+# even kijken of de sdp translator te bereiken is:
+sdp_rw.py --host cs001c.control.lofar --port 4840 -r firmware_version
+
+# als dat lukte:
+sdp_firmware.py --host cs001c.control.lofar --port 4840 --write --image USER --file ~/images/*.rbf   # juiste rbf opgeven
+
+# eventueel, om te controleren
+sdp_firmware.py --host cs001c.control.lofar --port 4840 --read --verify --image USER --file ~/images/*.rbf   # juiste rbf opgeven
+
+# om image aktief te maken
+sdp_rw.py --host cs001c.control.lofar --port 4840 -w boot_image [1]*16
+
+# checken of het gebeurt is:
+sdp_rw.py --host cs001c.control.lofar --port 4840 -r firmware_version
+
 
 4 sept 2023
 How to reach the SDP Translators on LCU2 in CS001? I got this from Reinier and Pieter to tunnel to the SDPTR, so that I can run the flash commands: