diff --git a/README.md b/README.md
index 441e2fb..7c5e7ba 100644
--- a/README.md
+++ b/README.md
@@ -12,10 +12,10 @@ De BLE-verbinding is beveiligd met **HMAC-SHA256 authenticatie** (application-le
 |---|---|
 | Relais 1 | Op **G1** |
 | Relais 2 | Op **G2** |
-| Touch sensor 1 | HS-S43A Digital Capacitive Switch Module op **G8** (actief LOW) |
-| Touch sensor 2 | HS-S43A Digital Capacitive Switch Module op **G6** (actief LOW) |
+| Touch sensor 1 | HS-S43A Digital Capacitive Switch Module op **G8** (actief HIGH) |
+| Touch sensor 2 | HS-S43A Digital Capacitive Switch Module op **G6** (actief HIGH) |
 | Knop | Op **G41** (active low) |
-| Status LED | Op **G35** (WS2812 RGB, rood = geen verbinding, geel = verbinding <60s, uit = stabiel) |
+| Status LED | Op **G46** (rood = geen verbinding, geel = verbinding <60s, uit = stabiel) |
 
 ### Pinout
 
@@ -25,7 +25,7 @@ G2 = RELAY2
 G6 = TOUCH2 (INPUT)
 G8 = TOUCH1 (INPUT)
 G41 = BUTTON (INPUT, active low)
-G35 = LED (WS2812 RGB, OUTPUT)
+G46 = LED (OUTPUT)
 ```
 
 ### Aansluiting
@@ -39,7 +39,7 @@ Relais + → G1 / G2
 Relais - → GND
 ```
 
-> **HS-S43A touch sensor:** Digitale output (actief LOW — pin naar GND bij aanraking). Gebruik `INPUT_PULLUP` modus. De sensor trekt de pin actief laag bij detectie.
+> **HS-S43A touch sensor:** Digitale output (actief HIGH). Geen pullup nodig — de sensor geeft actief 0V of 3.3V.
 
 ## LED-signalering
 
diff --git a/android/app/src/main/assets/firmware/client/firmware.bin b/android/app/src/main/assets/firmware/client/firmware.bin
index ca1b829..edd2861 100644
Binary files a/android/app/src/main/assets/firmware/client/firmware.bin and b/android/app/src/main/assets/firmware/client/firmware.bin differ
diff --git a/android/app/src/main/assets/firmware/server/firmware.bin b/android/app/src/main/assets/firmware/server/firmware.bin
index 3a35b83..83a42b6 100644
Binary files a/android/app/src/main/assets/firmware/server/firmware.bin and b/android/app/src/main/assets/firmware/server/firmware.bin differ
diff --git a/android/app/src/main/java/nl/eddydevink/sylda/BleRelayManager.kt b/android/app/src/main/java/nl/eddydevink/sylda/BleRelayManager.kt
index f74686d..d1a6826 100644
--- a/android/app/src/main/java/nl/eddydevink/sylda/BleRelayManager.kt
+++ b/android/app/src/main/java/nl/eddydevink/sylda/BleRelayManager.kt
@@ -32,7 +32,6 @@ import javax.crypto.Mac
 import javax.crypto.spec.GCMParameterSpec
 import javax.crypto.spec.SecretKeySpec
 import kotlin.text.Charsets
-import kotlinx.coroutines.CompletableDeferred
 
 class BleRelayManager(
     private val context: Context,
@@ -84,6 +83,14 @@ class BleRelayManager(
     private var ecdhNotifyBuf: ByteArray = ByteArray(0)
     private var ecdhCccdPending = false
 
+    private class CompletableDeferred<T> {
+        private var result: T? = null
+        private var completed = false
+        @Synchronized fun complete(value: T) { result = value; completed = true }
+        @Synchronized fun isDone(): Boolean = completed
+        @Synchronized fun get(): T? = result
+    }
+
     interface OtaNotifyCallback {
         fun onOtaNotify(status: Int, seq: Int)
     }
@@ -283,7 +290,6 @@ class BleRelayManager(
     private fun connectToDevice(device: android.bluetooth.BluetoothDevice) {
         handler.post { callbacks.onStatusChanged(BleStatus.Connecting) }
         Log.d(TAG, "Connecting to ${device.address}")
-        bluetoothGatt?.close()
         bluetoothGatt = device.connectGatt(context, false, gattCallback)
     }
 
@@ -494,10 +500,10 @@ class BleRelayManager(
 
             Thread {
                 val start = System.currentTimeMillis()
-                while (!ecdhDeferred!!.isCompleted && System.currentTimeMillis() - start < ECDH_TIMEOUT_MS) {
+                while (!ecdhDeferred!!.isDone() && System.currentTimeMillis() - start < ECDH_TIMEOUT_MS) {
                     Thread.sleep(50)
                 }
-                if (!ecdhDeferred!!.isCompleted) {
+                if (!ecdhDeferred!!.isDone()) {
                     Log.w(TAG, "ECDH: notify timeout")
                     handler.post {
                         callbacks.onStatusChanged(BleStatus.CommError)
diff --git a/android/app/src/main/java/nl/eddydevink/sylda/OtaManager.kt b/android/app/src/main/java/nl/eddydevink/sylda/OtaManager.kt
index f4741ae..0b2d3c9 100644
--- a/android/app/src/main/java/nl/eddydevink/sylda/OtaManager.kt
+++ b/android/app/src/main/java/nl/eddydevink/sylda/OtaManager.kt
@@ -98,7 +98,11 @@ class OtaManager(
                 return@withContext false
             }
 
-            delay(500)
+            try {
+                withTimeout(OTA_START_TIMEOUT_MS) {
+                    while (true) { delay(100); ensureActive() }
+                }
+            } catch (_: kotlinx.coroutines.TimeoutCancellationException) {}
 
             val totalChunks = (fw.size + chunkDataSize - 1) / chunkDataSize
             var seq = 0
diff --git a/scripts/release.sh b/scripts/release.sh
index f36595b..b073d8b 100755
--- a/scripts/release.sh
+++ b/scripts/release.sh
@@ -66,18 +66,10 @@ mkdir -p "$RELEASE_DIR"
 
 cp "$ANDROID_DIR/app/build/outputs/apk/release/app-release.apk" "$RELEASE_DIR/"
 cp "$ANDROID_DIR/app/build/outputs/bundle/release/app-release.aab" "$RELEASE_DIR/"
-
-# Server firmware
-cp "$FIRMWARE_DIR/server/bootloader.bin" "$RELEASE_DIR/server-bootloader.bin"
-cp "$FIRMWARE_DIR/server/partitions.bin"  "$RELEASE_DIR/server-partitions.bin"
-cp "$FIRMWARE_DIR/server/boot_app0.bin"   "$RELEASE_DIR/server-boot_app0.bin"
-cp "$FIRMWARE_DIR/server/firmware.bin"    "$RELEASE_DIR/server-firmware.bin"
-
-# Client firmware
-cp "$FIRMWARE_DIR/client/bootloader.bin" "$RELEASE_DIR/client-bootloader.bin"
-cp "$FIRMWARE_DIR/client/partitions.bin"  "$RELEASE_DIR/client-partitions.bin"
-cp "$FIRMWARE_DIR/client/boot_app0.bin"   "$RELEASE_DIR/client-boot_app0.bin"
-cp "$FIRMWARE_DIR/client/firmware.bin"    "$RELEASE_DIR/client-firmware.bin"
+cp "$FIRMWARE_DIR/bootloader.bin" "$RELEASE_DIR/"
+cp "$FIRMWARE_DIR/partitions.bin"  "$RELEASE_DIR/"
+cp "$FIRMWARE_DIR/boot_app0.bin"   "$RELEASE_DIR/"
+cp "$FIRMWARE_DIR/firmware.bin"    "$RELEASE_DIR/"
 
 log "Checksums..."
 cd "$RELEASE_DIR"