diff --git a/src/danog/MadelineProto/MTProto.php b/src/danog/MadelineProto/MTProto.php
index ec691765..d2319765 100644
--- a/src/danog/MadelineProto/MTProto.php
+++ b/src/danog/MadelineProto/MTProto.php
@@ -280,6 +280,7 @@ Slv8kg9qv1m6XHVQY3PnEw+QQtqSIXklHwIDAQAB
                     'telegram' => __DIR__.'/TL_telegram_v62.tl', // telegram TL scheme
                     'secret'   => __DIR__.'/TL_secret.tl', // secret chats TL scheme
                     'td'       => __DIR__.'/TL_td.tl', // telegram-cli TL scheme
+                    'botAPI'       => __DIR__.'/TL_botAPI.tl', // bot API TL scheme for file ids
                 ],
             ],
             'logger'       => [ // Logger settings
@@ -477,7 +478,7 @@ Slv8kg9qv1m6XHVQY3PnEw+QQtqSIXklHwIDAQAB
 
     public function getV()
     {
-        return 4;
+        return 5;
     }
 
     public function get_self()
diff --git a/src/danog/MadelineProto/MTProtoTools/AuthKeyHandler.php b/src/danog/MadelineProto/MTProtoTools/AuthKeyHandler.php
index afdd7124..dff10fcf 100644
--- a/src/danog/MadelineProto/MTProtoTools/AuthKeyHandler.php
+++ b/src/danog/MadelineProto/MTProtoTools/AuthKeyHandler.php
@@ -68,7 +68,7 @@ trait AuthKeyHandler
                 if (!isset($this->key->keydata['fp'])) {
                     $this->key = new \danog\MadelineProto\RSA($this->settings['authorization']['rsa_key']);
                 }
-                if (in_array($this->key->keydata['fp'], $ResPQ['server_public_key_fingerprints'])) {
+                if (!in_array($this->key->keydata['fp'], $ResPQ['server_public_key_fingerprints'])) {
                     throw new \danog\MadelineProto\SecurityException("Couldn't find our key in the server_public_key_fingerprints vector.");
                 }
                 $pq_bytes = $ResPQ['pq'];
diff --git a/src/danog/MadelineProto/MTProtoTools/PeerHandler.php b/src/danog/MadelineProto/MTProtoTools/PeerHandler.php
index 38156cc4..510aaad2 100644
--- a/src/danog/MadelineProto/MTProtoTools/PeerHandler.php
+++ b/src/danog/MadelineProto/MTProtoTools/PeerHandler.php
@@ -203,7 +203,7 @@ trait PeerHandler
                 }
             }
             $dbres = json_decode(file_get_contents('https://id.pwrtelegram.xyz/db/getusername?id='.$id, false, stream_context_create(['http'=> [
-                    'timeout' => 1,
+                    'timeout' => 2,
                 ],
             ])), true);
             if ($dbres['ok']) {
diff --git a/src/danog/MadelineProto/MTProtoTools/SeqNoHandler.php b/src/danog/MadelineProto/MTProtoTools/SeqNoHandler.php
index b56cd866..a461ce0b 100644
--- a/src/danog/MadelineProto/MTProtoTools/SeqNoHandler.php
+++ b/src/danog/MadelineProto/MTProtoTools/SeqNoHandler.php
@@ -29,7 +29,7 @@ trait SeqNoHandler
     public function check_in_seq_no($datacenter, $current_msg_id)
     {
         if (isset($this->datacenter->sockets[$datacenter]->incoming_messages[$current_msg_id]['seq_no']) && ($seq_no = $this->generate_in_seq_no($datacenter, $this->content_related($this->datacenter->sockets[$datacenter]->incoming_messages[$current_msg_id]['content']['_']))) !== $this->datacenter->sockets[$datacenter]->incoming_messages[$current_msg_id]['seq_no']) {
-            \danog\MadelineProto\Logger::log(['Seqno mismatch (should be '.$seq_no.', is '.$this->datacenter->sockets[$datacenter]->incoming_messages[$current_msg_id]['seq_no'].', '.$this->datacenter->sockets[$datacenter]->incoming_messages[$current_msg_id]['content']['_'].')'], \danog\MadelineProto\Logger::ERROR);
+            \danog\MadelineProto\Logger::log(['SECURITY WARNING: Seqno mismatch (should be '.$seq_no.', is '.$this->datacenter->sockets[$datacenter]->incoming_messages[$current_msg_id]['seq_no'].', '.$this->datacenter->sockets[$datacenter]->incoming_messages[$current_msg_id]['content']['_'].')'], \danog\MadelineProto\Logger::ERROR);
         }
     }
 
diff --git a/src/danog/MadelineProto/TL/Conversion/BotAPI.php b/src/danog/MadelineProto/TL/Conversion/BotAPI.php
index 2161156f..c466b32a 100644
--- a/src/danog/MadelineProto/TL/Conversion/BotAPI.php
+++ b/src/danog/MadelineProto/TL/Conversion/BotAPI.php
@@ -243,7 +243,6 @@ trait BotAPI
             return [];
 
             case 'messageMediaDocument':
-            $type = 5;
             $type_name = 'document';
             $res = [];
             if ($data['document']['thumb']['_'] === 'photoSize') {
@@ -260,9 +259,7 @@ trait BotAPI
                     case 'documentAttributeAudio':
                     $audio = $attribute;
                     $type_name = 'audio';
-                    $type = 9;
                     if ($attribute['voice']) {
-                        $type = 3;
                         $type_name = 'voice';
                     }
                     $res['duration'] = $attribute['duration'];
@@ -278,7 +275,6 @@ trait BotAPI
                     break;
 
                     case 'documentAttributeVideo':
-                    $type = 4;
                     $type_name = 'video';
                     $res['width'] = $attribute['w'];
                     $res['height'] = $attribute['h'];
@@ -300,7 +296,6 @@ trait BotAPI
 
                     case 'documentAttributeSticker':
                     $type_name = 'sticker';
-                    $type = 8;
                     $res['mask'] = $attribute['mask'];
                     $res['emoji'] = $attribute['alt'];
                     $res['sticker_set'] = $attribute['stickerset'];
@@ -329,7 +324,7 @@ trait BotAPI
             }
             $res['file_size'] = $data['document']['size'];
             $res['mime_type'] = $data['document']['mime_type'];
-            $res['file_id'] = $this->base64url_encode($this->rle_encode(\danog\PHP\Struct::pack('<iiqqb', $type, $data['document']['dc_id'], $data['document']['id'], $data['document']['access_hash'], 2)));
+            $res['file_id'] = $this->base64url_encode($this->rle_encode($this->serialize_object(['type' => 'bot_'.$type_name], $data['document']).chr(2)));
 
             return [$type_name => $res, 'caption' => $data['caption']];
             default:
diff --git a/src/danog/MadelineProto/TL/Conversion/BotAPIFiles.php b/src/danog/MadelineProto/TL/Conversion/BotAPIFiles.php
index 3948b063..12a34b43 100644
--- a/src/danog/MadelineProto/TL/Conversion/BotAPIFiles.php
+++ b/src/danog/MadelineProto/TL/Conversion/BotAPIFiles.php
@@ -66,7 +66,10 @@ trait BotAPIFiles
     public function photosize_to_botapi($photo, $message_media, $thumbnail = false)
     {
         $ext = $this->get_extension_from_location(['_' => 'inputFileLocation', 'volume_id' => $photo['location']['volume_id'], 'local_id' => $photo['location']['local_id'], 'secret' => $photo['location']['secret'], 'dc_id' => $photo['location']['dc_id']], '.jpg');
-        $data = \danog\PHP\Struct::pack('<iiqqqqib', $thumbnail ? 0 : 2, $photo['location']['dc_id'], isset($message_media['id']) ? $message_media['id'] : 0, isset($message_media['access_hash']) ? $message_media['access_hash'] : 0, $photo['location']['volume_id'], $photo['location']['secret'], $photo['location']['local_id'], 2);
+        $photo['location']['access_hash'] = isset($message_media['access_hash']) ? $message_media['access_hash'] : 0;
+        $photo['location']['id'] = isset($message_media['id']) ? $message_media['id'] : 0;
+        
+        $data = $this->serialize_object(['type' => $thumbnail ? 'bot_thumbnail' : 'bot_photo'], $photo['location']).chr(2);
 
         return [
             'file_id'   => $this->base64url_encode($this->rle_encode($data)),
@@ -81,79 +84,57 @@ trait BotAPIFiles
     public function unpack_file_id($file_id)
     {
         $file_id = $this->rle_decode($this->base64url_decode($file_id));
-        $res = [];
-        $type = \danog\PHP\Struct::unpack('<i', substr($file_id, 0, 4))[0];
-        switch ($type) {
-            case 0:
+        if ($file_id[strlen($file_id) - 1] !== chr(2)) throw new Exception('Invalid last byte');
+        $deserialized = $this->deserialize($file_id);
+        $res = ['type' => str_replace('bot_', $deserialized['_'])];
+        switch ($deserialized['_']) {
+            case 'bot_thumbnail':
+            case 'bot_photo':
             $constructor = ['_' => 'photo', 'sizes' => []];
 
-            list($type, $constructor['sizes'][0]['location']['dc_id'], $constructor['id'], $constructor['access_hash'], $constructor['sizes'][0]['location']['volume_id'], $constructor['sizes'][0]['location']['secret'], $constructor['sizes'][0]['location']['local_id'], $verify) = \danog\PHP\Struct::unpack('<iiqqqqib', $file_id);
-            if ($verify !== 2) {
-                throw new Exception('Invalid last byte');
-            }
-            $res['type'] = 'photo';
+            $constructor['id'] = $deserialized['id'];
+            $constructor['access_hash'] = $deserialized['access_hash'];
+            unset($deserialized['id']);
+            unset($deserialized['access_hash']);
+            unset($deserialized['_']);
+
+            $constructor['sizes'][0]['location'] = $deserialized;
+
             $res['MessageMedia'] = ['_' => 'messageMediaPhoto', 'photo' => $constructor, 'caption' => ''];
 
             return $res;
-            case 2:
-            $constructor = ['_' => 'photo', 'sizes' => []];
-            list($type, $constructor['sizes'][0]['location']['dc_id'], $constructor['id'], $constructor['access_hash'], $constructor['sizes'][0]['location']['volume_id'], $constructor['sizes'][0]['location']['secret'], $constructor['sizes'][0]['location']['local_id'], $verify) = \danog\PHP\Struct::unpack('<iiqqqqib', $file_id);
-            if ($verify !== 2) {
-                throw new Exception('Invalid last byte');
-            }
-            $res['type'] = 'photo';
-            $res['MessageMedia'] = ['_' => 'messageMediaPhoto', 'photo' => $constructor, 'caption' => ''];
 
-            return $res;
-            case 3:
-            $constructor = ['_' => 'document', 'mime_type' => '', 'attributes' => [['_' => 'documentAttributeAudio', 'voice' => true]]];
-            list($type, $constructor['dc_id'], $constructor['id'], $constructor['access_hash'], $verify) = \danog\PHP\Struct::unpack('<iiqqb', $file_id);
-            if ($verify !== 2) {
-                throw new Exception('Invalid last byte');
-            }
-            $res['type'] = 'voice';
+            case 'bot_voice':
+            unset($deserialized['_']);
+            $constructor = array_merge($deserialized, ['_' => 'document', 'mime_type' => '', 'attributes' => [['_' => 'documentAttributeAudio', 'voice' => true]]]);
+
             $res['MessageMedia'] = ['_' => 'messageMediaDocument', 'document' => $constructor, 'caption' => ''];
 
             return $res;
 
-            case 4:
-            $res['type'] = 'videos';
-            $constructor = ['_' => 'document', 'mime_type' => '', 'attributes' => [['_' => 'documentAttributeVideo']]];
-            list($type, $constructor['dc_id'], $constructor['id'], $constructor['access_hash'], $verify) = \danog\PHP\Struct::unpack('<iiqqb', $file_id);
-            if ($verify !== 2) {
-                throw new Exception('Invalid last byte');
-            }
+            case 'bot_video':
+            unset($deserialized['_']);
+            $constructor = array_merge($deserialized, ['_' => 'document', 'mime_type' => '', 'attributes' => [['_' => 'documentAttributeVideo']]]);
+
             $res['MessageMedia'] = ['_' => 'messageMediaDocument', 'document' => $constructor, 'caption' => ''];
 
             return $res;
-            case 5:
-            $res['type'] = 'document';
-            $constructor = ['_' => 'document', 'mime_type' => '', 'attributes' => []];
-            list($type, $constructor['dc_id'], $constructor['id'], $constructor['access_hash'], $verify) = \danog\PHP\Struct::unpack('<iiqqb', $file_id);
-            if ($verify !== 2) {
-                throw new Exception('Invalid last byte');
-            }
+            case 'bot_document':
+            unset($deserialized['_']);
+            $constructor = array_merge($deserialized, ['_' => 'document', 'mime_type' => '', 'attributes' => []]);
             $res['MessageMedia'] = ['_' => 'messageMediaDocument', 'document' => $constructor, 'caption' => ''];
 
             return $res;
-            case 8:
-            $constructor = ['_' => 'document', 'mime_type' => '', 'attributes' => [['_' => 'documentAttributeSticker']]];
-            list($type, $constructor['dc_id'], $constructor['id'], $constructor['access_hash'], $verify) = \danog\PHP\Struct::unpack('<iiqqb', $file_id);
-            if ($verify !== 2) {
-                throw new Exception('Invalid last byte');
-            }
-            $res['type'] = 'sticker';
+            case 'bot_sticker':
+            unset($deserialized['_']);
+            $constructor = array_merge($deserialized, ['_' => 'document', 'mime_type' => '', 'attributes' => [['_' => 'documentAttributeSticker']]]);
             $res['MessageMedia'] = ['_' => 'messageMediaDocument', 'document' => $constructor, 'caption' => ''];
 
             return $res;
 
-            case 9:
-            $constructor = ['_' => 'document', 'mime_type' => '', 'attributes' => [['_' => 'documentAttributeAudio', 'voice' => false]]];
-            list($type, $constructor['dc_id'], $constructor['id'], $constructor['access_hash'], $verify) = \danog\PHP\Struct::unpack('<iiqqb', $file_id);
-            if ($verify !== 2) {
-                throw new Exception('Invalid last byte');
-            }
-            $res['type'] = 'music';
+            case 'bot_audio':
+            unset($deserialized['_']);
+            $constructor = array_merge($deserialized, ['_' => 'document', 'mime_type' => '', 'attributes' => [['_' => 'documentAttributeAudio', 'voice' => false]]]);
             $res['MessageMedia'] = ['_' => 'messageMediaDocument', 'document' => $constructor, 'caption' => ''];
 
             return $res;
diff --git a/src/danog/MadelineProto/TL/TL.php b/src/danog/MadelineProto/TL/TL.php
index bcf89b02..b3edc330 100644
--- a/src/danog/MadelineProto/TL/TL.php
+++ b/src/danog/MadelineProto/TL/TL.php
@@ -119,7 +119,7 @@ trait TL
                         '',
                         '', ], $line);
                     $id = hash('crc32b', $clean);
-                    if (preg_match('/^[^\s]+#/', $line)) {
+                    if (preg_match('/^[^\s]+#/', $line) && $scheme_type !== 'botAPI') {
                         $nid = str_pad(preg_replace(['/^[^#]+#/', '/\s.+/'], '', $line), 8, '0', \STR_PAD_LEFT);
                         if ($id !== $nid) {
                             \danog\MadelineProto\Logger::log(['CRC32 mismatch ('.$id.', '.$nid.') for '.$line], \danog\MadelineProto\Logger::ERROR);
@@ -554,7 +554,7 @@ trait TL
                         break;
                 }
             }
-            if (in_array($arg['name'], ['msg_ids', 'msg_id', 'bad_msg_id', 'req_msg_id', 'answer_msg_id', 'first_msg_id', 'key_fingerprint', 'server_salt', 'new_server_salt'])) {
+            if (in_array($arg['name'], ['msg_ids', 'msg_id', 'bad_msg_id', 'req_msg_id', 'answer_msg_id', 'first_msg_id', 'key_fingerprint', 'server_salt', 'new_server_salt', 'server_public_key_fingerprints'])) {
                 $arg['strlong'] = true;
             }
             $x[$arg['name']] = $this->deserialize($bytes_io, $arg);