--- var/install
+++ var/install
@@ -123,37 +123,19 @@
 export ANNEX=`cat ${CONFIG_ENVIRONMENT_PATH}/annex`
 if [ -z "${ANNEX}" ] ; then echo ANNEX=${ANNEX} not supported ; exit $INSTALL_WRONG_HARDWARE ; fi
 echo ANNEX=$ANNEX
-# Fritz_Box_7170
-if [ -z "$DISABLE_Fritz_Box_7170" ] ; then
-   echo testing acceptance for device Fritz_Box_7170 ...
-   if /etc/version --install=ar7_8MB_xilinx_4eth_3ab_isdn_nt_te_pots_wlan_usb_host_25762 ; then
-       echo device has installtype ar7_8MB_xilinx_4eth_3ab_isdn_nt_te_pots_wlan_usb_host_25762
-       # passt der ANNEX ?
-       accept_annex=B
-       echo assumed ANNEX ${accept_annex} -- found ANNEX "${ANNEX}"
-       if [ "${accept_annex}" = "${ANNEX}" ] ; then
-           echo device has ANNEX ${ANNEX}
-           # passt der OEM ?
-           if [ ! -z "${OEM}" ] ; then
-               oem_found=0
-               for i in  avm 1und1 ; do
-                   if [ "$i" = "${OEM}" ] ; then
-                       echo "OK - OEM ${OEM} is supported"
-                       oem_found=1
-                       break
-                   fi
-               done
-               if [ "$oem_found" = "0" ] ; then 
-                   echo "OEM ${OEM} not supported"
-                   exit $INSTALL_WRONG_HARDWARE
-               fi
-           fi
-           echo OK - accept this update for device Fritz_Box_7170 ...
-           korrekt_version=1
-       fi
-   fi
-   echo testing acceptance for device Fritz_Box_7170 done
+# Fritz_Box_7170_HN / Alice IAD 3331 / hence install type not known do it the dirty way
+# Fritz_Box_7170_HN / "for i in  avme ; do " to make fwmo
+hwrev="$(IFS="$IFS."; set $(grep HWRevision /proc/sys/urlader/environment); echo $2)"
+korrekt_version=
+case "$hwrev" in
+   174 ) korrekt_version=1 ;;
+esac
+echo testing acceptance for device Fritz_Box_7170 ...
+if [ ! "$korrekt_version" = 1 ] ; then
+   echo "HWRevision $hwrev not supported"
+   exit $INSTALL_WRONG_HARDWARE
 fi
+echo testing acceptance for device Fritz_Box_7170 done
 
 kernel_start=0x90010000
 kernel_size=7798784