diff --git a/targets/stm32l442/src/device.c b/targets/stm32l442/src/device.c
index 1b03025..6a22027 100644
--- a/targets/stm32l442/src/device.c
+++ b/targets/stm32l442/src/device.c
@@ -177,6 +177,8 @@ void heartbeat()
     {
         state = !state;
     }
+
+#ifdef LED_WINK_VALUE
     if (wink_time)
     {
         if (millis() - winkt1 > 120)
@@ -184,7 +186,7 @@ void heartbeat()
             winkt1 = millis();
             if (winkt2++ & 1)
             {
-                led_rgb(LED_WINK_VALUE * (LED_MAX_SCALER - LED_MIN_SCALER)/2); 
+                led_rgb(LED_WINK_VALUE * (LED_MAX_SCALER - LED_MIN_SCALER)/2);
             }
             else
             {
@@ -194,6 +196,7 @@ void heartbeat()
         }
     }
     else
+#endif
     {
         if (but)
             led_rgb(((val * r)<<8) | ((val*b) << 16) | (val*g));
@@ -423,10 +426,9 @@ led_rgb(0x001040);
 
 delay(50);
 
-#if SKIP_BUTTON_CHECK_FAST
+
 done:
 return 1;
-#endif
 
 fail:
 return 0;
diff --git a/tools/programmer.py b/tools/programmer.py
index 1b39e34..64782e7 100644
--- a/tools/programmer.py
+++ b/tools/programmer.py
@@ -132,11 +132,6 @@ class Programmer():
         self.exchange(SoloBootloader.done,0,sig)
 
     def wink(self,):
-        """
-        If solo is configured as solo hacker or something similar,
-        this command will tell the token to boot directly to the bootloader
-        so it can be reprogrammed
-        """
         self.send_data_hid(CTAPHID.WINK,b'')
 
     def enter_solo_bootloader(self,):
diff --git a/tools/sign_firmware.py b/tools/sign_firmware.py
index 4608bf0..8fca40b 100644
--- a/tools/sign_firmware.py
+++ b/tools/sign_firmware.py
@@ -21,11 +21,12 @@ def get_firmware_object(sk_name, hex_file):
     fw = open(hex_file,'r').read()
     fw = base64.b64encode(fw.encode())
     fw = to_websafe(fw.decode())
-
+    ih = IntelHex()
+    ih.fromfile(hex_file, format='hex')
     # start of firmware and the size of the flash region allocated for it.
     # TODO put this somewhere else.
     START = ih.segments()[0][0]
-    END = ((0x08000000 + ((128-19)*2024))-8)
+    END = ((0x08000000 + ((128-19)*2048))-8)
 
     ih = IntelHex(hex_file)
     segs = ih.segments()
@@ -56,7 +57,7 @@ if __name__ == '__main__':
     if len(sys.argv) != 4:
         print('usage: %s <signing-key.pem> <app.hex> <output.json>' % sys.argv[0])
     msg = get_firmware_object(sys.argv[1],sys.argv[2])
-    print('Saving signed firmware to firmware.json')
+    print('Saving signed firmware to', sys.argv[3])
     wfile = open(sys.argv[3],'wb+')
     wfile.write(json.dumps(msg).encode())
     wfile.close()
diff --git a/web/js/wallet.js b/web/js/wallet.js
index b1d2cd6..8e6f804 100644
--- a/web/js/wallet.js
+++ b/web/js/wallet.js
@@ -1426,8 +1426,8 @@ async function run_tests() {
 
     async function test_bootloader()
     {
-        var start = 0x8000;
-        var size = 186 * 1024 - 8;
+        var start = 10 * 2048;
+        var size = 198 * 1024 - 8;
         var num_pages = 64;
 
         var p = await dev.is_bootloader();