diff --git a/src/mes_service.rs b/src/mes_service.rs
index 1634b49..5a1b51f 100644
--- a/src/mes_service.rs
+++ b/src/mes_service.rs
@@ -36,18 +36,26 @@ impl MesService {
         download_type: DownloadType,
     ) -> Result<bool, Error> {
         match download_type {
-            DownloadType::App => Ok(true),
             DownloadType::Rail => {
                 let mut conn = self.pool.get_conn()?;
                 let check_result: Vec<String> = conn.query(format!(
-                    "SELECT `Station1` FROM {work_order} WHERE `Barcode` = {label}"
+                    "SELECT `Station2` FROM {work_order} WHERE `Barcode` = {label}"
                 ))?;
                 if check_result.is_empty() {
                     return Ok(false);
                 }
                 Ok(check_result[0] == "1")
             }
-            DownloadType::Bootloader => Err(Error::msg("Not implemented yet")),
+            _ => {
+                let mut conn = self.pool.get_conn()?;
+                let check_result: Vec<String> = conn.query(format!(
+                    "SELECT * FROM {work_order} WHERE `Barcode` = {label}"
+                ))?;
+                if check_result.is_empty() {
+                    return Ok(true);
+                }
+                Ok(false)
+            }
         }
     }
 
@@ -67,7 +75,7 @@ impl MesService {
                 if let Some(work_order_id) = work_order_id.first() {
                     let _: Vec<String> = conn.exec(
                         format!(
-                            "INSERT INTO {work_order} (`ID`, `Barcode`, `IMEI_1`, `Station1`) VALUES ({work_order_id}, {label}, {label}, '1') \
+                            "INSERT INTO `{work_order}` (`ID`, `Barcode`, `IMEI_1`, `Station1`) VALUES ( {work_order_id}, '{label}', '{label}', '1') \
         ON DUPLICATE KEY UPDATE `Barcode` = VALUES(`Barcode`), `IMEI_1` = VALUES(`IMEI_1`), `Station1` = VALUES(`Station1`)"
                         ),
                         ()
@@ -79,7 +87,7 @@ impl MesService {
             DownloadType::Rail => {
                 let mut conn = self.pool.get_conn()?;
                 let _: Vec<String> = conn.exec(
-                    format!("UPDATE {work_order} SET `Station2` = 1 WHERE `Barcode` = {label}"),
+                    format!("UPDATE {work_order} SET `Station3` = 1 WHERE `Barcode` = '{label}'"),
                     (),
                 )?;
             }