diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2688b03..6d91ceb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,7 @@
 ## 0.16.0
 * Bump bluez to 0.8.3
 * Improve readme
+* Do not normalize UUIDs on native side
 * Reverse _permissionStatus return values in example app
 
 ## 0.15.0
diff --git a/android/src/main/kotlin/com/navideck/universal_ble/UniversalBleHelper.kt b/android/src/main/kotlin/com/navideck/universal_ble/UniversalBleHelper.kt
index 265bd78..806387c 100644
--- a/android/src/main/kotlin/com/navideck/universal_ble/UniversalBleHelper.kt
+++ b/android/src/main/kotlin/com/navideck/universal_ble/UniversalBleHelper.kt
@@ -73,16 +73,8 @@ fun Int.toBleConnectionState(): BleConnectionState {
     }
 }
 
-fun String.validFullUUID(): String {
-    return when (this.count()) {
-        4 -> "0000$this-0000-1000-8000-00805F9B34FB"
-        8 -> "$this-0000-1000-8000-00805F9B34FB"
-        else -> this
-    }
-}
-
 fun List<String>.toUUIDList(): List<UUID> {
-    return this.map { UUID.fromString(it.validFullUUID()) }
+    return this.map { UUID.fromString(it) }
 }
 
 
diff --git a/darwin/Classes/UniversalBleHelper.swift b/darwin/Classes/UniversalBleHelper.swift
index 3b6cb8f..6eb35f4 100644
--- a/darwin/Classes/UniversalBleHelper.swift
+++ b/darwin/Classes/UniversalBleHelper.swift
@@ -143,20 +143,6 @@ public extension CBPeripheral {
     }
 }
 
-extension String {
-    var validFullUUID: String {
-        let uuidLength = count
-        if uuidLength == 4 || uuidLength == 8 {
-            let baseUuid = "00000000-0000-1000-8000-00805F9B34FB"
-            let start = baseUuid.startIndex
-            let range = baseUuid.index(start, offsetBy: 4 - uuidLength) ..< baseUuid.index(start, offsetBy: 4)
-            return baseUuid.replacingCharacters(in: range, with: self).lowercased()
-        } else {
-            return self
-        }
-    }
-}
-
 extension FlutterStandardTypedData {
     func toData() -> Data {
         return Data(data)
diff --git a/darwin/Classes/UniversalBlePlugin.swift b/darwin/Classes/UniversalBlePlugin.swift
index f23e7b2..29ab8a5 100644
--- a/darwin/Classes/UniversalBlePlugin.swift
+++ b/darwin/Classes/UniversalBlePlugin.swift
@@ -348,7 +348,7 @@ private class BleCentralDarwin: NSObject, UniversalBlePlatformChannel, CBCentral
       isPaired: nil,
       rssi: RSSI as? Int64,
       manufacturerDataList: manufacturerDataList,
-      services: services?.map { $0.uuidStr.validFullUUID }
+      services: services?.map { $0.uuidStr }
     )) { _ in }
   }
 
@@ -492,7 +492,7 @@ extension String {
 extension [String] {
   func toCBUUID() throws -> [CBUUID] {
     return try compactMap { serviceUUID in
-      guard UUID(uuidString: serviceUUID.validFullUUID) != nil else {
+      guard UUID(uuidString: serviceUUID) != nil else {
         throw PigeonError(code: "IllegalArgument", message: "Invalid service UUID:\(serviceUUID)", details: nil)
       }
       return CBUUID(string: serviceUUID)