diff --git a/src/danog/MadelineProto/MTProto.php b/src/danog/MadelineProto/MTProto.php
index fca58f99..ec52cff6 100644
--- a/src/danog/MadelineProto/MTProto.php
+++ b/src/danog/MadelineProto/MTProto.php
@@ -141,8 +141,8 @@ Slv8kg9qv1m6XHVQY3PnEw+QQtqSIXklHwIDAQAB
         \danog\MadelineProto\Logger::log('Switching to DC '.$new_dc.'...');
         if ($this->datacenter->dc_connect($new_dc)) {
             $this->init_authorization();
-            $this->write_client_info();
-            $this->bind_temp_auth_key($this->settings['authorization']['default_temp_auth_key_expires_in'], $allow_nearest_dc_switch);
+            $this->write_client_info($allow_nearest_dc_switch);
+            $this->bind_temp_auth_key($this->settings['authorization']['default_temp_auth_key_expires_in']);
         }
     }
 
@@ -172,7 +172,7 @@ Slv8kg9qv1m6XHVQY3PnEw+QQtqSIXklHwIDAQAB
                 'query' => $this->tl->serialize_method('initConnection',
                     array_merge(
                         $this->settings['app_info'],
-                        ['query' => $this->tl->serialize_method('help.getnearest_dc', [])]
+                        ['query' => $this->tl->serialize_method('help.getNearestDc', [])]
                     )
                 ),
             ]
diff --git a/src/danog/MadelineProto/MTProtoTools/SeqNoHandler.php b/src/danog/MadelineProto/MTProtoTools/SeqNoHandler.php
index 4b6bcb67..b730347b 100644
--- a/src/danog/MadelineProto/MTProtoTools/SeqNoHandler.php
+++ b/src/danog/MadelineProto/MTProtoTools/SeqNoHandler.php
@@ -20,8 +20,8 @@ class SeqNoHandler extends SaltHandler
     public function generate_seq_no($content_related = true)
     {
         $in = $content_related ? 1 : 0;
-        $value = $this->seq_no;
-        $this->seq_no += $in;
+        $value = $this->datacenter->seq_no;
+        $this->datacenter->seq_no += $in;
 
         return ($value * 2) + $in;
     }
diff --git a/src/danog/MadelineProto/PrimeModule.php b/src/danog/MadelineProto/PrimeModule.php
index 7f9ae7b0..077b09f2 100644
--- a/src/danog/MadelineProto/PrimeModule.php
+++ b/src/danog/MadelineProto/PrimeModule.php
@@ -80,7 +80,7 @@ class PrimeModule extends Tools
     {
         $pqstr = (string) $pq;
 
-        \danog\MadelineProto\Logging::log('Trying to use the python factorization module');
+        \danog\MadelineProto\Logger::log('Trying to use the python factorization module');
         if (function_exists('shell_exec')) {
             try {
                 $res = json_decode(shell_exec('python '.__DIR__.'/getpq.py '.$pqstr));
@@ -91,7 +91,7 @@ class PrimeModule extends Tools
             }
         }
 
-        \danog\MadelineProto\Logging::log('Trying to use the wolfram alpha factorization module');
+        \danog\MadelineProto\Logger::log('Trying to use the wolfram alpha factorization module');
         $query = 'Do prime factorization of '.$pqstr;
         $params = [
             'async'         => true,
@@ -120,7 +120,7 @@ class PrimeModule extends Tools
             return $res;
         }
 
-        \danog\MadelineProto\Logging::log('Trying to use the native factorization module');
+        \danog\MadelineProto\Logger::log('Trying to use the native factorization module');
         $res = $this->find_small_multiplier_lopatin((int) $pqstr);
         $res = [$res, $pqstr / $res];
         if ($res[1] != 1) {
diff --git a/src/danog/MadelineProto/TL/TL.php b/src/danog/MadelineProto/TL/TL.php
index e58bd3ba..81750250 100644
--- a/src/danog/MadelineProto/TL/TL.php
+++ b/src/danog/MadelineProto/TL/TL.php
@@ -39,7 +39,7 @@ class TL extends \danog\MadelineProto\Tools
     public function get_named_method_args($method, $arguments)
     {
         $tl_method = $this->methods->find_by_method($method);
-        if ($tl_method == false) {
+        if ($tl_method === false) {
             throw new Exception('Could not extract type: '.$method);
         }
 
@@ -57,8 +57,8 @@ class TL extends \danog\MadelineProto\Tools
 
     public function serialize_obj($object, $arguments)
     {
-        $tl_constructor = $this->constructors->find_by_type($object);
-        if ($tl_constructor == false) {
+        $tl_constructor = $this->constructors->find_by_predicate($object);
+        if ($tl_constructor === false) {
             throw new Exception('Could not extract type: '.$object);
         }
 
@@ -74,7 +74,7 @@ class TL extends \danog\MadelineProto\Tools
     public function serialize_method($method, $arguments)
     {
         $tl_method = $this->methods->find_by_method($method);
-        if ($tl_method == false) {
+        if ($tl_method === false) {
             throw new Exception('Could not extract type: '.$method);
         }
 
@@ -148,7 +148,7 @@ class TL extends \danog\MadelineProto\Tools
             case '!X':
                 return $value;
             case 'Vector t':
-                $concat = \danog\PHP\Struct::pack('<i', $this->constructors->find_by_type('vector')['id']);
+                $concat = \danog\PHP\Struct::pack('<i', $this->constructors->find_by_predicate('vector')['id']);
 
                 $concat .= \danog\PHP\Struct::pack('<l', count($value));
                 foreach ($value as $curv) {
@@ -226,16 +226,16 @@ class TL extends \danog\MadelineProto\Tools
                 }
                 $count = \danog\PHP\Struct::unpack('<l', fread($bytes_io, 4)) [0];
                 $x = [];
-                foreach ($this->range($count) as $i) {
+                for ($i = 0; $i < $count; $i++) {
                     $x[] = $this->deserialize($bytes_io, $subtype);
                 }
                 break;
             default:
-                $tl_elem = $this->constructors->find_by_type($type);
-                if ($tl_elem == false) {
+                $tl_elem = $this->constructors->find_by_predicate($type);
+                if ($tl_elem === false) {
                     $id = \danog\PHP\Struct::unpack('<i', fread($bytes_io, 4)) [0];
                     $tl_elem = $this->constructors->find_by_id($id);
-                    if ($tl_elem == false) {
+                    if ($tl_elem === false) {
                         throw new Exception('Could not extract type: '.$type.' with id '.$id);
                     }
                 }
diff --git a/src/danog/MadelineProto/TL/TLConstructor.php b/src/danog/MadelineProto/TL/TLConstructor.php
index a77297dd..93c54b4d 100644
--- a/src/danog/MadelineProto/TL/TLConstructor.php
+++ b/src/danog/MadelineProto/TL/TLConstructor.php
@@ -44,18 +44,19 @@ class TLConstructor
                     $param['type'] = 'Vector t';
                 }
                 if (preg_match('/^\%/', $param['subtype'])) {
-                    $param['subtype'] = lcfirst(preg_replace('/^\%/', '', $param['subtype']));
+                    $param['subtype'] = preg_replace('/^\%/', '', $param['subtype']);
                 }
+//lcfirst
             }
         }
         $this->key++;
     }
 
-    public function find_by_type($type)
+    public function find_by_predicate($predicate)
     {
-        $key = array_search($type, $this->type);
+        $key = array_search($predicate, $this->predicate);
 
-        return ($key == false) ? false : [
+        return ($key === false) ? false : [
             'id'        => $this->id[$key],
             'predicate' => $this->predicate[$key],
             'type'      => $this->type[$key],
@@ -67,7 +68,7 @@ class TLConstructor
     {
         $key = array_search($id, $this->id);
 
-        return ($key == false) ? false : [
+        return ($key === false) ? false : [
             'id'        => $this->id[$key],
             'predicate' => $this->predicate[$key],
             'type'      => $this->type[$key],
diff --git a/src/danog/MadelineProto/TL/TLMethod.php b/src/danog/MadelineProto/TL/TLMethod.php
index 4897afe7..4969b418 100644
--- a/src/danog/MadelineProto/TL/TLMethod.php
+++ b/src/danog/MadelineProto/TL/TLMethod.php
@@ -57,8 +57,7 @@ class TLMethod
     public function find_by_method($method)
     {
         $key = array_search($method, $this->method);
-
-        return ($key == false) ? false : [
+        return ($key === false) ? false : [
             'id'                => $this->id[$key],
             'method'            => $this->method[$key],
             'type'              => $this->type[$key],