diff --git a/magna.php b/magna.php
index d83df733..7aea208c 100755
--- a/magna.php
+++ b/magna.php
@@ -53,8 +53,8 @@ function configureCall($call)
     $call->configuration['enable_AEC'] = false;
     $call->configuration['shared_config'] = [
             'audio_init_bitrate'      => 100 * 1000,
-            'audio_max_bitrate'       => 500 * 1000,
-            'audio_min_bitrate'       => 100 * 1000,
+            'audio_max_bitrate'       => 100 * 1000,
+            'audio_min_bitrate'       => 10 * 1000,
             'audio_congestion_window' => 4 * 1024,
             //'audio_bitrate_step_decr' => 0,
             //'audio_bitrate_step_incr' => 2000,
diff --git a/src/danog/MadelineProto/MTProtoTools/UpdateHandler.php b/src/danog/MadelineProto/MTProtoTools/UpdateHandler.php
index 243b8165..38e10b26 100644
--- a/src/danog/MadelineProto/MTProtoTools/UpdateHandler.php
+++ b/src/danog/MadelineProto/MTProtoTools/UpdateHandler.php
@@ -27,26 +27,6 @@ trait UpdateHandler
 
     public function pwr_update_handler($update)
     {
-        /*
-        if (isset($update['message']['to_id'])) {
-            try {
-                $full_chat = $this->get_pwr_chat($update['message']['to_id']);
-            } catch (\danog\MadelineProto\Exception $e) {
-                \danog\MadelineProto\Logger::log($e->getMessage(), \danog\MadelineProto\Logger::WARNING);
-            } catch (\danog\MadelineProto\RPCErrorException $e) {
-                \danog\MadelineProto\Logger::log($e->getMessage(), \danog\MadelineProto\Logger::WARNING);
-            }
-        }
-        if (isset($update['message']['from_id'])) {
-            try {
-                $full_chat = $this->get_pwr_chat($update['message']['from_id']);
-            } catch (\danog\MadelineProto\Exception $e) {
-                \danog\MadelineProto\Logger::log($e->getMessage(), \danog\MadelineProto\Logger::WARNING);
-            } catch (\danog\MadelineProto\RPCErrorException $e) {
-                \danog\MadelineProto\Logger::log($e->getMessage(), \danog\MadelineProto\Logger::WARNING);
-            }
-        }
-        */
         if (isset($this->settings['pwr']['update_handler'])) {
             if (is_array($this->settings['pwr']['update_handler']) && $this->settings['pwr']['update_handler'][0] === false) {
                 $this->settings['pwr']['update_handler'] = $this->settings['pwr']['update_handler'][1];
@@ -209,10 +189,10 @@ trait UpdateHandler
 
             throw $e;
         } catch (\danog\MadelineProto\PTSException $e) {
+            \danog\MadelineProto\Logger::log($e->getMessage());
             unset($this->channels_state[$channel]);
             $this->load_channel_state($channel)['sync_loading'] = false;
-
-            return $this->get_channel_difference($channel);
+            return false;//$this->get_channel_difference($channel);
         } finally {
             $this->postpone_updates = false;
             $this->load_channel_state($channel)['sync_loading'] = false;