diff --git a/common/apk.py b/common/apk.py
index e9ef98268..b01f5f48d 100644
--- a/common/apk.py
+++ b/common/apk.py
@@ -32,6 +32,7 @@ def start_frame():
 
 def set_package_permissions():
   pm_grant("ai.comma.plus.offroad", "android.permission.ACCESS_FINE_LOCATION")
+  pm_grant("ai.comma.plus.offroad", "android.permission.READ_PHONE_STATE")
   appops_set("ai.comma.plus.offroad", "SU", "allow")
   appops_set("ai.comma.plus.offroad", "WIFI_SCAN", "allow")
   appops_set("ai.comma.plus.offroad", "READ_EXTERNAL_STORAGE", "allow")
diff --git a/selfdrive/loggerd/uploader.py b/selfdrive/loggerd/uploader.py
index 8f7e0a67a..6067f01ed 100644
--- a/selfdrive/loggerd/uploader.py
+++ b/selfdrive/loggerd/uploader.py
@@ -67,11 +67,13 @@ def clear_locks(root):
 def is_on_wifi():
   # ConnectivityManager.getActiveNetworkInfo()
   try:
-    result = android.parse_service_call_string(["connectivity", "2"])
+    # TODO: figure out why the android service call sometimes dies with SIGUSR2 (signal from MSGQ)
+    result = android.parse_service_call_string(android.service_call(["connectivity", "2"]))
     if result is None:
       return True
     return 'WIFI' in result
-  except AttributeError:
+  except (AttributeError, subprocess.CalledProcessError):
+    cloudlog.exception("is_on_wifi failed")
     return False
 
 def is_on_hotspot():
diff --git a/selfdrive/pandad.py b/selfdrive/pandad.py
index e64b99049..2c21bdf72 100755
--- a/selfdrive/pandad.py
+++ b/selfdrive/pandad.py
@@ -58,7 +58,7 @@ def update_panda():
     serial = None
 
   panda_version = "bootstub" if panda.bootstub else panda.get_version()
-  panda_signature = "bootstub" if panda.bootstub else panda.get_signature()
+  panda_signature = b"" if panda.bootstub else panda.get_signature()
   cloudlog.warning("Panda %s connected, version: %s, signature %s, expected %s" % (
     serial,
     panda_version,