diff --git a/VERSION b/VERSION
index 10c0880..6a126f4 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.7.4
+1.7.5
diff --git a/changelog.json b/changelog.json
index 60845a2..77b73fd 100644
--- a/changelog.json
+++ b/changelog.json
@@ -1,5 +1,18 @@
 {
   "versions": [
+    {
+      "version": "1.7.5",
+      "date": "2026-05-12",
+      "changes": {
+        "features": [],
+        "improvements": [],
+        "fixes": [
+          "update_firmware.sh: chmod +x avant d'executer setup_services.sh (le bit executable est strippé par git config core.fileMode=false, donc le check -x echouait systematiquement et Step 3c logguait 'not found or not executable, skipping')"
+        ],
+        "compatibility": []
+      },
+      "notes": "Suite v1.7.4: le self-heal Step 3c n'etait pas reellement actif a cause d'un check -x trop strict. Cette version corrige le probleme en chmod +x avant l'execution, comme le fait deja installation_part2.sh."
+    },
     {
       "version": "1.7.4",
       "date": "2026-05-12",
diff --git a/update_firmware.sh b/update_firmware.sh
index 6cf2a35..edae6b5 100755
--- a/update_firmware.sh
+++ b/update_firmware.sh
@@ -112,13 +112,17 @@ fi
 # masked, or never installed gets recreated from the canonical source.
 # Idempotent: rewriting an existing service file with the same content
 # is a no-op for already-running services.
+# Note: git config core.fileMode=false strips the executable bit, so we
+# chmod +x explicitly (same pattern as installation_part2.sh).
 print_status ""
 print_status "Step 3c: Reconciling systemd services with setup_services.sh..."
-if [ -x /var/www/nebuleair_pro_4g/services/setup_services.sh ]; then
-    sudo /var/www/nebuleair_pro_4g/services/setup_services.sh
+SETUP_SERVICES=/var/www/nebuleair_pro_4g/services/setup_services.sh
+if [ -f "$SETUP_SERVICES" ]; then
+    sudo chmod +x "$SETUP_SERVICES"
+    sudo "$SETUP_SERVICES"
     check_status "Setup services reconciliation"
 else
-    print_status "⚠ setup_services.sh not found or not executable, skipping"
+    print_status "⚠ setup_services.sh not found, skipping"
 fi
 
 # Step 4: Restart critical services if they exist