diff --git a/functions.h b/functions.h
index ccdc8d3..9f4e5ae 100644
--- a/functions.h
+++ b/functions.h
@@ -29,7 +29,6 @@ namespace global {
     namespace mainwindow {
         namespace tabSwitcher {
             inline bool repaint;
-
             inline bool appsWidgetCreated;
             inline bool appsWidgetSelected;
             inline bool settingsChooserWidgetCreated;
@@ -52,6 +51,7 @@ namespace global {
 // https://stackoverflow.com/questions/6080853/c-multiple-definition-error-for-global-functions-in-the-header-file/20679534#20679534
 namespace {
     QString checkconfig_str_val;
+    QString deviceUID;
     QString batt_level;
     int batt_level_int;
     bool checked_box = false;
@@ -246,7 +246,7 @@ namespace {
             proc->start(prog, args);
         }
     }
-    int getUID() {
+    void getUID() {
         QString prog ("dd");
         QStringList args;
         args << "if=/dev/mmcblk0" << "bs=512" << "skip=1" << "count=1" << "status=none";
@@ -254,11 +254,8 @@ namespace {
         proc->start(prog, args);
         proc->waitForFinished();
 
-        QString procOutput = proc->readAllStandardOutput();
-        procOutput = procOutput.left(256);
-
-        int deviceUID = procOutput.toInt();
-        return deviceUID;
+        deviceUID = proc->readAllStandardOutput();
+        deviceUID = deviceUID.left(256);
     }
 }
 #endif // FUNCTIONS_H
diff --git a/reader.cpp b/reader.cpp
index 1c8f087..a4c8b94 100644
--- a/reader.cpp
+++ b/reader.cpp
@@ -766,10 +766,9 @@ void reader::on_aboutBtn_clicked()
         string_checkconfig_ro("/external_root/opt/isa/version");
         aboutmsg.append("\n\nInkBox ");
         aboutmsg.append(checkconfig_str_val);
-        int device_uid = getUID();
-        QString device_uid_qstr = QString::number(device_uid);
-        aboutmsg.append("\n");
-        aboutmsg.append(device_uid_qstr);
+        getUID();
+        aboutmsg.append("\nDevice UID:\n");
+        aboutmsg.append(deviceUID);
         QMessageBox::information(this, tr("Information"), aboutmsg);
     }
     else {
diff --git a/settings.cpp b/settings.cpp
index 0ca55eb..c6813fc 100644
--- a/settings.cpp
+++ b/settings.cpp
@@ -266,10 +266,9 @@ void settings::on_aboutBtn_clicked()
         string_checkconfig_ro("/external_root/opt/isa/version");
         aboutmsg.append("\n\nInkBox ");
         aboutmsg.append(checkconfig_str_val);
-        int device_uid = getUID();
-        QString device_uid_qstr = QString::number(device_uid);
-        aboutmsg.append("\n");
-        aboutmsg.append(device_uid_qstr);
+        getUID();
+        aboutmsg.append("\nDevice UID:\n");
+        aboutmsg.append(deviceUID);
         QMessageBox::information(this, tr("Information"), aboutmsg);
     }
     else {