diff --git a/src/Command/CleanMobileCommand.php b/src/Command/CleanMobileCommand.php
index dac0900..0b3becd 100644
--- a/src/Command/CleanMobileCommand.php
+++ b/src/Command/CleanMobileCommand.php
@@ -72,7 +72,24 @@ final class CleanMobileCommand extends Command
         // -------------------------------------------------------------
         // 2️⃣ CSV reader / writer (semicolon‑separated)
         // -------------------------------------------------------------
-        $csvReader = Reader::createFromPath($inputPath, 'r');
+        $contents = file_get_contents($inputPath);
+        if ($contents === false) {
+            $io->error("Could not read input file: $inputPath");
+            return Command::FAILURE;
+        }
+
+        // Keep UTF-8 files unchanged; convert legacy exports before parsing
+        // so every field (including clinic names and headers) is UTF-8.
+        if (preg_match('//u', $contents) !== 1) {
+            $contents = iconv('ISO-8859-1', 'UTF-8', $contents);
+            if ($contents === false) {
+                $io->error('Could not convert input file from ISO-8859-1 to UTF-8.');
+                return Command::FAILURE;
+            }
+            $io->note('Converted input from ISO-8859-1 to UTF-8.');
+        }
+
+        $csvReader = Reader::createFromString($contents);
         $csvReader->setDelimiter(';');
         $csvReader->setHeaderOffset(0);            // first line = header
         $header = $csvReader->getHeader();
@@ -95,26 +112,6 @@ final class CleanMobileCommand extends Command
             '17',
         ];
 
-        $sanitiseUtf8 = static function(?string $raw): ?string {
-            $utf8 = null;
-            if (mb_check_encoding($raw, 'UTF-8')) {
-                $utf8 = $raw;
-            } else {
-                $encodings = ['Windows-1252', 'ISO-8859-1', 'CP1252', 'ASCII'];
-                foreach ($encodings as $src) {
-                    $utf8 = @iconv($src, 'UTF-8//TRANSLIT//IGNORE', $raw);
-                    if ($utf8 !== false) {
-                        break;
-                    }
-                }
-                if ($utf8 === false) {
-                    // Could not be converted – treat it as “invalid”.
-                    return null;
-                }
-            }
-            return $utf8;
-        };
-
         // -------------------------------------------------------------
         // 4️⃣  Helper closures
         // -------------------------------------------------------------
@@ -234,7 +231,7 @@ final class CleanMobileCommand extends Command
                 $contact->setParsedAt(new \DateTimeImmutable());
                 $contact->setStudyId($study_id);
                 $contact->setParsedFileLinenum($rowCount + 1);
-                $contact->setParsedFileLine($sanitiseUtf8(implode(';', $row)));
+                $contact->setParsedFileLine(implode(';', $row));
                 // $contact->setMsgContentType($rowCount % 2 ? 1 : 2); // alternativ lang oder kurz
                 $contact->setMsgContentType(2); // nur kurzformat
                 $quartal = $today->format('Y') . ceil($today->format('n') / 3);