diff --git a/assets/js/selecting.js b/assets/js/selecting.js
index 0709b15d17..3f65286b4a 100644
--- a/assets/js/selecting.js
+++ b/assets/js/selecting.js
@@ -5,6 +5,9 @@
     SPDX-License-Identifier: MIT
 */
 
+const DEVICE_N3DS = 1;
+const DEVICE_O3DS = 0;
+
 // Soundhax
 // 1.0-11.3, all regions, all consoles
 function can_soundhax(major, minor, native, region, model) {
@@ -45,11 +48,11 @@ function can_ssloth(major, minor, native, region, model) {
         } else if (region == "K") {
             if
                 (
-                (model && minor == 4 && native == 33) ||
-                (model && minor == 5 && native == 34) ||
-                (model && minor == 6 && native == 35) ||
-                (model && minor == 7 && native == 35) ||
-                (model && minor == 8 && native == 35) ||
+                (model == DEVICE_N3DS && minor == 4 && native == 33) ||
+                (model == DEVICE_N3DS && minor == 5 && native == 34) ||
+                (model == DEVICE_N3DS && minor == 6 && native == 35) ||
+                (model == DEVICE_N3DS && minor == 7 && native == 35) ||
+                (model == DEVICE_N3DS && minor == 8 && native == 35) ||
                 (minor == 9 && native == 36) ||
                 (minor == 10 && native == 37) ||
                 (minor == 12 && native == 38) ||
@@ -73,7 +76,7 @@ function can_ssloth(major, minor, native, region, model) {
 // Soundhax and SSLoth should be validated before this
 function can_safecerthax(major, minor, native, region, model) {
     let do_redirect = false;
-    if (model == 0) {
+    if (model == DEVICE_O3DS) {
         if (major <= 10) do_redirect = true;
         else if (major == 11 && minor <= 14) do_redirect = true;
     }
@@ -93,7 +96,7 @@ function can_superskaterhax(major, minor, native, region, model) {
     let do_redirect_sysupdate = false;
     let do_redirect = false;
     // N3DS only
-    if(model == 1) {
+    if(model == DEVICE_N3DS) {
         if (major == 11) {
             if (["E", "J", "U"].includes(region)) {
                 if (minor == 17) do_redirect = true;
@@ -124,13 +127,14 @@ function can_superskaterhax(major, minor, native, region, model) {
 function can_miimine(major, minor, native, region, model) {
     let do_redirect = false;
 
-    if (major == 11) {
-        if (model == 0 && minor == 15) {
+    if (model == DEVICE_O3DS) {
+        if (major == 11 && minor == 15) {
             // KOR and TWN can do normal seedminer
             // All other O3DS must Mii mine
             if (region != "K" && region != "T") do_redirect = true;
         }
     }
+
     if (do_redirect) {
         window.location.href = "seedminer-(mii)";
         return true;
@@ -150,8 +154,8 @@ function can_seedminer(major, minor, native, region, model) {
         else if (region == "T") do_redirect_twn = true;
     }
     // KOR O3DS on any version should update to 11.16
-    else if (model == 0 && region == "K") do_redirect_sysupdate_kor = true;
-    // KOR O3DS on any version should update to 11.16
+    else if (model == DEVICE_O3DS && region == "K") do_redirect_sysupdate_kor = true;
+    // TWN on any version should update to 11.16
     else if (region == "T") do_redirect_sysupdate_twn = true;
 
     if (do_redirect_sysupdate_twn) {
@@ -199,12 +203,12 @@ function can_seedminer(major, minor, native, region, model) {
         - Unhackable
 */
 function redirect() {
-    var major = document.getElementById("major");
-    var minor = document.getElementById("minor");
-    var nver = document.getElementById("nver");
-    var region = document.getElementById("region");
-    var isN3DS = document.getElementById("new3DS").checked;
-    var isO3DS = document.getElementById("old3DS").checked;
+    let major = document.getElementById("major");
+    let minor = document.getElementById("minor");
+    let nver = document.getElementById("nver");
+    let region = document.getElementById("region");
+    let isN3DS = document.getElementById("new3DS").checked;
+    let isO3DS = document.getElementById("old3DS").checked;
     document.getElementById("result_noneSelected").style.display = "none";
     document.getElementById("result_invalidVersion").style.display = "none";
     document.getElementById("result_methodUnavailable").style.display = "none";
@@ -217,10 +221,10 @@ function redirect() {
         return;
     }
 
-    // O3DS = 0
-    // N3DS = 1
-    var model = 0;
-    if(isN3DS) model = 1;
+    // Realistically only one of these should be possible with the given elements
+    let model = -1;
+    if(isO3DS) model = DEVICE_O3DS
+    else if(isN3DS) model = DEVICE_N3DS;
 
     let redirected = [
       can_soundhax,