diff --git a/README.md b/README.md
index 40009ad..60ff847 100644
--- a/README.md
+++ b/README.md
@@ -4,9 +4,6 @@ API connector for Sonoff/ewelink devices using simple webapi based on OAuth2.
 
 PHP 7.4+, no other dependiencies required.
 
-Current version from branch **main** should be operative, but not yet tested in 100% and in active development, so please keep this in mind.
-For pre released versions look at recent released  [Tagged versions](https://github.com/PJanisio/ewelinkApiPhp/tags)
-
 ## Current features
 
 - login and authorization to ewelink (with refresh token)
@@ -50,15 +47,14 @@ try {
         $deviceId = '100xxxxxx'; // Replace with your actual device ID
 
         // Turn on the device
-        $setStatusResult = $devices->setDeviceStatus($deviceId, ['switch' => 'on']);
-        echo '<h1>Turn Device On Result</h1>';
-        echo '<pre>' . print_r($setStatusResult, true) . '</pre>';
+        $param = ['switch' => 'on'];
+        $setStatusResult = $devices->setDeviceStatus($deviceId, $param);
 
     } else {
 
         //if we have no token, or we are not authorized paste link to authorization
         $loginUrl = $httpClient->getLoginUrl();
-        echo '<a href="' . htmlspecialchars($loginUrl) . '">Login with OAuth</a>';
+        echo '<a href="' . htmlspecialchars($loginUrl) . '">Authorize ewelinkApiPhp</a>';
     }
 } catch (Exception $e) {
     echo 'Error: ' . $e->getMessage();
@@ -92,7 +88,6 @@ Index.php works as a gateway to API and also as a debug for all availablemethods
 
 ## More inside info about current development
 
-- released version is expected to be ready on **01.07.2024** latest
 - main branch when commited used to be operative.
 - with next stable release methods and invoking functions structure can be changed (keep this in mind)
 - branch **websockets** will probably be not maintened anymore
diff --git a/autoloader.php b/autoloader.php
index 4abe2e4..4ddd309 100644
--- a/autoloader.php
+++ b/autoloader.php
@@ -1,5 +1,13 @@
 <?php
 
+/**
+ * Class: ewelinkApiPhp
+ * Author: Paweł 'Pavlus' Janisio
+ * Website: https://github.com/AceExpert/ewelink-api-python
+ * Dependencies: PHP 7.4+
+ * Description: API connector for Sonoff / ewelink devices
+ */
+
 // Autoloader function to load classes automatically
 spl_autoload_register(function ($class) {
     $base_dir = __DIR__ . '/src/';
diff --git a/index.php b/index.php
index 3fdbc80..c069a7a 100644
--- a/index.php
+++ b/index.php
@@ -1,5 +1,13 @@
 <?php
 
+/**
+ * Class: ewelinkApiPhp
+ * Author: Paweł 'Pavlus' Janisio
+ * Website: https://github.com/AceExpert/ewelink-api-python
+ * Dependencies: PHP 7.4+
+ * Description: API connector for Sonoff / ewelink devices
+ */
+
 require_once __DIR__ . '/autoloader.php';
 
 $httpClient = new HttpClient();
@@ -44,9 +52,9 @@
             echo '<h1>Live Device Parameter</h1>';
             echo '<pre>' . print_r($liveResult, true) . '</pre>';
             
-            // Example usage of refreshDeviceStatusLive
-            $refreshResult = $devices->refreshDeviceStatusLive($deviceId);
-            echo '<h1>Refresh Device Status Live</h1>';
+            // Example usage of getAllDeviceParamLive
+            $refreshResult = $devices->getAllDeviceParamLive($deviceId);
+            echo '<h1>Get All Device Parameters Live</h1>';
             echo '<pre>' . print_r($refreshResult, true) . '</pre>';
 
             // Example usage of setDeviceStatus for multi-channel device
@@ -63,7 +71,7 @@
 
             // Example usage of setDeviceStatus for single-channel device
             $singleChannelDeviceId = '10011015b6';
-            $singleChannelParams = ['bright' => 80];
+            $singleChannelParams = ['switch' => 'off'];
             $setStatusResultSingle = $devices->setDeviceStatus($singleChannelDeviceId, $singleChannelParams);
             echo '<h1>Set Single-Channel Device Status Result</h1>';
             echo '<pre>' . print_r($setStatusResultSingle, true) . '</pre>';
@@ -104,6 +112,6 @@
         }
     } else {
         $loginUrl = $httpClient->getLoginUrl();
-        echo '<a href="' . htmlspecialchars($loginUrl) . '">Login with OAuth</a>';
+        echo '<a href="' . htmlspecialchars($loginUrl) . '">Authorize ewelinkApiPhp</a>';
     }
 }
diff --git a/src/Constants.php b/src/Constants.php
index 176a3e1..d18547f 100644
--- a/src/Constants.php
+++ b/src/Constants.php
@@ -1,5 +1,13 @@
 <?php
 
+/**
+ * Class: ewelinkApiPhp
+ * Author: Paweł 'Pavlus' Janisio
+ * Website: https://github.com/AceExpert/ewelink-api-python
+ * Dependencies: PHP 7.4+
+ * Description: API connector for Sonoff / ewelink devices
+ */
+
 class Constants {
     // Your eWeLink application ID, obtained from the eWeLink developer platform
     const APPID = 'your_app_id';
diff --git a/src/Devices.php b/src/Devices.php
index 29d0043..7a76498 100644
--- a/src/Devices.php
+++ b/src/Devices.php
@@ -1,5 +1,13 @@
 <?php
 
+/**
+ * Class: ewelinkApiPhp
+ * Author: Paweł 'Pavlus' Janisio
+ * Website: https://github.com/AceExpert/ewelink-api-python
+ * Dependencies: PHP 7.4+
+ * Description: API connector for Sonoff / ewelink devices
+ */
+
 class Devices {
     private $devicesData;
     private $httpClient;
@@ -182,14 +190,14 @@ public function getDeviceParamLive($deviceId, $param, $type = 1) {
     }
 
     /**
-     * Refresh device status live using the API.
+     * Get all device parameters live using the API.
      * 
      * @param string $deviceId The ID of the device.
      * @param int $type The type (default is 1).
      * @return mixed The updated device status from the API response or null if not found.
      * @throws Exception If there is an error in the request.
      */
-    public function refreshDeviceStatusLive($deviceId, $type = 1) {
+    public function getAllDeviceParamLive($deviceId, $type = 1) {
         $endpoint = '/v2/device/thing/status';
         $queryParams = [
             'id' => $deviceId,
@@ -219,7 +227,7 @@ public function refreshDeviceStatusLive($deviceId, $type = 1) {
      */
     public function setDeviceStatus($deviceId, $params) {
         $device = $this->getDeviceById($deviceId);
-        $currentParams = $device['params'] ?? null;
+        $currentParams = $this->getAllDeviceParamLive($deviceId) ?? null; // Use getAllDeviceParamLive to get current state
 
         if ($currentParams === null) {
             return "Device $deviceId does not have any parameters to update.";
diff --git a/src/Home.php b/src/Home.php
index a41d4ed..3216f9e 100644
--- a/src/Home.php
+++ b/src/Home.php
@@ -1,5 +1,13 @@
 <?php
 
+/**
+ * Class: ewelinkApiPhp
+ * Author: Paweł 'Pavlus' Janisio
+ * Website: https://github.com/AceExpert/ewelink-api-python
+ * Dependencies: PHP 7.4+
+ * Description: API connector for Sonoff / ewelink devices
+ */
+
 class Home {
     private $httpClient;
     private $familyData;
diff --git a/src/HttpClient.php b/src/HttpClient.php
index da966c8..045256b 100644
--- a/src/HttpClient.php
+++ b/src/HttpClient.php
@@ -1,5 +1,13 @@
 <?php
 
+/**
+ * Class: ewelinkApiPhp
+ * Author: Paweł 'Pavlus' Janisio
+ * Website: https://github.com/AceExpert/ewelink-api-python
+ * Dependencies: PHP 7.4+
+ * Description: API connector for Sonoff / ewelink devices
+ */
+
 require_once __DIR__ . '/Utils.php';
 require_once __DIR__ . '/Constants.php';
 require_once __DIR__ . '/Home.php';
@@ -16,6 +24,22 @@ class HttpClient {
 
     public function __construct() {
         $utils = new Utils();
+        
+        // Validate constants
+        $validationResults = $utils->validateConstants();
+        $errors = [];
+        foreach ($validationResults as $key => $result) {
+            if (!$result['is_valid']) {
+                $errors[] = "Invalid {$key}: " . $result['value'];
+            }
+        }
+        if (!empty($errors)) {
+            foreach ($errors as $error) {
+                echo "<p>$error</p>";
+            }
+            exit;
+        }
+
         $this->region = Constants::REGION; // Assign region from Constants
         $this->loginUrl = $this->createLoginUrl('ewelinkapiphp'); // Default state
 
diff --git a/src/Token.php b/src/Token.php
index a2b0432..66d7ca6 100644
--- a/src/Token.php
+++ b/src/Token.php
@@ -1,5 +1,13 @@
 <?php
 
+/**
+ * Class: ewelinkApiPhp
+ * Author: Paweł 'Pavlus' Janisio
+ * Website: https://github.com/AceExpert/ewelink-api-python
+ * Dependencies: PHP 7.4+
+ * Description: API connector for Sonoff / ewelink devices
+ */
+
 require_once __DIR__ . '/Utils.php';
 require_once __DIR__ . '/Constants.php';
 
diff --git a/src/Utils.php b/src/Utils.php
index 989652a..0498119 100644
--- a/src/Utils.php
+++ b/src/Utils.php
@@ -1,5 +1,13 @@
 <?php
 
+/**
+ * Class: ewelinkApiPhp
+ * Author: Paweł 'Pavlus' Janisio
+ * Website: https://github.com/AceExpert/ewelink-api-python
+ * Dependencies: PHP 7.4+
+ * Description: API connector for Sonoff / ewelink devices
+ */
+
 class Utils {
     /**
      * Generate a nonce (an 8-digit alphanumeric random string).
@@ -54,4 +62,66 @@ public function handleRedirect() {
         return [$code, $region];
     }
 
+    /**
+     * Check if JSON files in the root directory are valid and retrieve their creation timestamps.
+     *
+     * @return array The validation results and creation timestamps of the JSON files.
+     */
+    public function checkJsonFiles() {
+        $files = glob('*.json');
+        $results = [];
+
+        foreach ($files as $file) {
+            $content = file_get_contents($file);
+            $isValidJson = json_decode($content) !== null;
+            $creationTime = filectime($file);
+            $results[] = [
+                'file' => $file,
+                'validation' => $isValidJson,
+                'creation_time' => $creationTime
+            ];
+        }
+
+        return $results;
+    }
+
+    /**
+     * Validate the constants in the Constants class.
+     *
+     * @return array The validation results for REDIRECT_URL, EMAIL, and REGION.
+     */
+    public function validateConstants() {
+        $results = [];
+
+        // Validate REDIRECT_URL
+        $url = Constants::REDIRECT_URL;
+        $ch = curl_init($url);
+        curl_setopt($ch, CURLOPT_NOBODY, true);
+        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
+        curl_setopt($ch, CURLOPT_TIMEOUT, 5); // Set timeout to 5 seconds
+        curl_exec($ch);
+        $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
+        curl_close($ch);
+        $results['REDIRECT_URL'] = [
+            'value' => $url,
+            'is_valid' => $httpCode >= 200 && $httpCode < 400 // Consider 2xx and 3xx responses as valid
+        ];
+
+        // Validate EMAIL
+        $email = Constants::EMAIL;
+        $results['EMAIL'] = [
+            'value' => $email,
+            'is_valid' => filter_var($email, FILTER_VALIDATE_EMAIL) !== false
+        ];
+
+        // Validate REGION
+        $region = Constants::REGION;
+        $validRegions = ['cn', 'us', 'eu', 'as'];
+        $results['REGION'] = [
+            'value' => $region,
+            'is_valid' => in_array($region, $validRegions)
+        ];
+
+        return $results;
+    }
 }