diff --git a/app/src/main/java/com/example/medilightv2android/ble/BleManager.kt b/app/src/main/java/com/example/medilightv2android/ble/BleManager.kt
index 7b041c2..6e1321b 100644
--- a/app/src/main/java/com/example/medilightv2android/ble/BleManager.kt
+++ b/app/src/main/java/com/example/medilightv2android/ble/BleManager.kt
@@ -995,7 +995,12 @@ class BleManager private constructor(private val context: Context) {
                 }
             }
             "rid:" -> {
-                val info = if (data.size > 4) String(data, 4, data.size - 4, Charsets.US_ASCII).trim() else "?"
+                // BLE 응답 끝에 NULL byte padding이 붙는 경우가 있음 — PostgreSQL JSONB가
+                // 0x00을 거부하므로 trim()으로 안 빠지는 NULL/제어문자를 명시적으로 제거.
+                val info = if (data.size > 4)
+                    String(data, 4, data.size - 4, Charsets.US_ASCII)
+                        .replace(Regex("[\\x00-\\x1F\\x7F]"), " ").trim()
+                else "?"
                 debugLogger.rx("rid", data.size, "device_info=$info")
                 debugLogger.info("DEVICE_INFO $info")
                 // 형식: "VBTHW0100   VBT26040001 VBTFW0111" (HW, Serial, FW)
diff --git a/app/src/main/java/com/example/medilightv2android/services/labdb/LabdbClient.kt b/app/src/main/java/com/example/medilightv2android/services/labdb/LabdbClient.kt
index bb4035b..e287f04 100644
Binary files a/app/src/main/java/com/example/medilightv2android/services/labdb/LabdbClient.kt and b/app/src/main/java/com/example/medilightv2android/services/labdb/LabdbClient.kt differ