diff --git a/htdocs/app/Services/AstmMessageService.php b/htdocs/app/Services/AstmMessageService.php
index f5045f7d..f1aabf81 100644
--- a/htdocs/app/Services/AstmMessageService.php
+++ b/htdocs/app/Services/AstmMessageService.php
@@ -687,19 +687,20 @@ class AstmMessageService
     protected function reassembleAstmFrames(string $raw): string
     {
         $buffer = '';
-        $frames = preg_split('/\x02\d/', $raw); // STX + sequence number
+        $frames = [];
 
-        foreach ($frames as $frame) {
-            // buang ETX, checksum, EOT
-            $frame = preg_replace('/\x03.*$/s', '', $frame);
-            $frame = preg_replace('/\x04/', '', $frame);
+        // ambil semua frame
+        preg_match_all('/\x02(\d)(.*?)\x03(..)/s', $raw, $frames);
 
-            $buffer .= $frame;
+        foreach ($frames[2] as $content) {
+            // gabungkan isi frame (tanpa ETX & checksum)
+            $buffer .= $content;
         }
 
         return trim($buffer);
     }
 
+
     protected function processBDAstmResponse(string $raw, $data): bool
     {
         try {