diff --git a/tool/IPL/Flash_Bootloader_S4SK.ttl b/tool/IPL/Flash_Bootloader_S4SK.ttl
index 133fcdb..78da509 100755
--- a/tool/IPL/Flash_Bootloader_S4SK.ttl
+++ b/tool/IPL/Flash_Bootloader_S4SK.ttl
@@ -34,16 +34,13 @@ endif
 ;---------------------------------------------------
 ; Select CR52 OS
 ;---------------------------------------------------
-strdim LIST1 3
+strdim LIST1 2
     LIST1[0] = '1: Trampoline'
-    LIST1[1] = '2: Trampoline(ether enable)'
-    LIST1[2] = '3: Zephyr'
+    LIST1[1] = '2: Zephyr'
 listbox '' 'Select Cortex-R52 OS' LIST1
 if result = 0 then
     CR52 = 'Trampoline'
 elseif result = 1 then
-    CR52 = 'Trampoline(ether enable)'
-elseif result = 2 then
     CR52 = 'Zephyr'
 else
     end
@@ -52,47 +49,35 @@ endif
 ;---------------------------------------------------
 ; Change load image parameter
 ;---------------------------------------------------
-strcompare CR52 'Trampoline(ether enable)'
+strcompare G4MH 'Trampoline'
 if result = 0 then
-    strcompare G4MH 'Trampoline'
+    strcompare CR52 'Trampoline'
     if result = 0 then
-        IMGNM[4]  = 'cr52_trampoline_deploy\cr52_eth.srec'
-        IMGNM[5]  = 'g4mh_trampoline_deploy\g4mh.srec'
-    else
-        IMGNM[4]  = 'cr52_trampoline_deploy\cr52_eth.srec'
-        IMGNM[5]  = 'g4mh_safegauto_deploy\g4mh.srec'
-    endif
-else
-    strcompare G4MH 'Trampoline'
-    if result = 0 then
-        strcompare CR52 'Trampoline'
+        strdim LIST2 2
+            LIST2[0] = '1: CR52'
+            LIST2[1] = '2: G4MH'
+        listbox '' 'Select CAN' LIST2
         if result = 0 then
-            strdim LIST2 2
-                LIST2[0] = '1: CR52'
-                LIST2[1] = '2: G4MH'
-            listbox '' 'Select CAN' LIST2
-            if result = 0 then
-                IMGNM[4]  = 'cr52_trampoline_deploy\cr52.srec'
-                IMGNM[5]  = 'g4mh_trampoline_deploy\g4mh_can_disable.srec'
-            elseif result = 1 then
-                IMGNM[4]  = 'cr52_trampoline_deploy\cr52_can_disable.srec'
-                IMGNM[5]  = 'g4mh_trampoline_deploy\g4mh.srec'
-            else
-                end
-            endif
-        else
-            IMGNM[4]  = 'cr52_zephyr_deploy\cr52.srec'
+            IMGNM[4]  = 'cr52_trampoline_deploy\cr52.srec'
             IMGNM[5]  = 'g4mh_trampoline_deploy\g4mh_can_disable.srec'
-        endif
-    else
-        strcompare CR52 'Trampoline'
-        if result = 0 then
+        elseif result = 1 then
             IMGNM[4]  = 'cr52_trampoline_deploy\cr52_can_disable.srec'
-            IMGNM[5]  = 'g4mh_safegauto_deploy\g4mh.srec'
+            IMGNM[5]  = 'g4mh_trampoline_deploy\g4mh.srec'
         else
-            IMGNM[4]  = 'cr52_zephyr_deploy\cr52.srec'
-            IMGNM[5]  = 'g4mh_safegauto_deploy\g4mh.srec'
+            end
         endif
+    else
+        IMGNM[4]  = 'cr52_zephyr_deploy\cr52.srec'
+        IMGNM[5]  = 'g4mh_trampoline_deploy\g4mh_can_disable.srec'
+    endif
+else
+    strcompare CR52 'Trampoline'
+    if result = 0 then
+        IMGNM[4]  = 'cr52_trampoline_deploy\cr52_can_disable.srec'
+        IMGNM[5]  = 'g4mh_safegauto_deploy\g4mh.srec'
+    else
+        IMGNM[4]  = 'cr52_zephyr_deploy\cr52.srec'
+        IMGNM[5]  = 'g4mh_safegauto_deploy\g4mh.srec'
     endif
 endif
 
diff --git a/tool/IPL/Flash_Bootloader_Spider.ttl b/tool/IPL/Flash_Bootloader_Spider.ttl
index 9a8cc5d..09f23e3 100755
--- a/tool/IPL/Flash_Bootloader_Spider.ttl
+++ b/tool/IPL/Flash_Bootloader_Spider.ttl
@@ -34,16 +34,13 @@ endif
 ;---------------------------------------------------
 ; Select CR52 OS
 ;---------------------------------------------------
-strdim LIST1 3
+strdim LIST1 2
     LIST1[0] = '1: Trampoline'
-    LIST1[1] = '2: Trampoline(ether enable)'
-    LIST1[2] = '3: Zephyr'
+    LIST1[1] = '2: Zephyr'
 listbox '' 'Select Cortex-R52 OS' LIST1
 if result = 0 then
     CR52 = 'Trampoline'
 elseif result = 1 then
-    CR52 = 'Trampoline(ether enable)'
-elseif result = 2 then
     CR52 = 'Zephyr'
 else
     end
@@ -52,36 +49,24 @@ endif
 ;---------------------------------------------------
 ; Change load image parameter
 ;---------------------------------------------------
-strcompare CR52 'Trampoline(ether enable)'
+strcompare G4MH 'Trampoline'
 if result = 0 then
-    strcompare G4MH 'Trampoline'
+    strcompare CR52 'Trampoline'
     if result = 0 then
-        IMGNM[4]  = 'cr52_trampoline_deploy\cr52_eth.srec'
+        IMGNM[4]  = 'cr52_trampoline_deploy\cr52.srec'
         IMGNM[5]  = 'g4mh_trampoline_deploy\g4mh.srec'
     else
-        IMGNM[4]  = 'cr52_trampoline_deploy\cr52_eth.srec'
-        IMGNM[5]  = 'g4mh_safegauto_deploy\g4mh.srec'
+        IMGNM[4]  = 'cr52_zephyr_deploy\cr52.srec'
+        IMGNM[5]  = 'g4mh_trampoline_deploy\g4mh.srec'
     endif
 else
-    strcompare G4MH 'Trampoline'
-    if result = 0 then
-        strcompare CR52 'Trampoline'
-        if result = 0 then
-            IMGNM[4]  = 'cr52_trampoline_deploy\cr52.srec'
-            IMGNM[5]  = 'g4mh_trampoline_deploy\g4mh.srec'
-        else
-            IMGNM[4]  = 'cr52_zephyr_deploy\cr52.srec'
-            IMGNM[5]  = 'g4mh_trampoline_deploy\g4mh.srec'
-        endif
+    strcompare CR52 'Trampoline'
+     if result = 0 then
+        IMGNM[4]  = 'cr52_trampoline_deploy\cr52.srec'
+        IMGNM[5]  = 'g4mh_safegauto_deploy\g4mh.srec'
     else
-        strcompare CR52 'Trampoline'
-         if result = 0 then
-            IMGNM[4]  = 'cr52_trampoline_deploy\cr52.srec'
-            IMGNM[5]  = 'g4mh_safegauto_deploy\g4mh.srec'
-        else
-            IMGNM[4]  = 'cr52_zephyr_deploy\cr52.srec'
-            IMGNM[5]  = 'g4mh_safegauto_deploy\g4mh.srec'
-        endif
+        IMGNM[4]  = 'cr52_zephyr_deploy\cr52.srec'
+        IMGNM[5]  = 'g4mh_safegauto_deploy\g4mh.srec'
     endif
 endif
 
diff --git a/tool/IPL/burn_s4.sh b/tool/IPL/burn_s4.sh
index 116b3cb..e355c4b 100755
--- a/tool/IPL/burn_s4.sh
+++ b/tool/IPL/burn_s4.sh
@@ -21,7 +21,6 @@ WRITE_FLAG_G4MH=0
 WRITE_FLAG_CR52=0
 WRITE_FLAG_ALL=0
 SELECT_CAN=0
-SELECT_ETHER=0
 WRITE_PATTERN=""
 
 # Burn patterns: G4MH, CR52
@@ -48,7 +47,6 @@ Usage() {
     echo "    all: All writes (default)"
     echo "    g4mh: Write only G4MH"
     echo "    cr52: Write only CR52"
-    echo "    ether: Write only CR52 tranpoline with ethernet"
 
     echo "    -g: G4MH with CAN"
     echo "    -r: CR52 with CAN"
@@ -95,8 +93,6 @@ do
         else
             SELECT_CAN=0;
         fi
-    elif [[ "$param" == "ether" ]]; then
-        SELECT_ETHER=1;
     else
         echo -e "\e[31mERROR: Unsupported option\e[m"
 	    Usage; exit
@@ -151,11 +147,6 @@ else
     fi
 fi
 
-if [ "$SELECT_ETHER" -eq 1 ]; then
-    cp ${CR52_TP_DIR}/cr52_eth.srec $CR52_NAME
-    WRITE_PATTERN="rtos"
-fi
-
 # Flash IPL
 python3 ipl_burning.py $1 $USB_PORT $MOT_PATH $IPL_PATH $WRITE_PATTERN