Android camera fixes, purchase screen fixes

assets/values-en/strings.xml

@@ -120,4 +120,13 @@ To improve barcode scanning quality, adjust the distance between the camera and
   <string name="joys_minus">Joys was charged</string>
   <string name="joys_hint">Joys to charge</string>
   <string name="phone">Phone</string>
+  <string name="camera_instructions">
+    Open settings.
+    Find Applications.
+    In app list select %s.
+    On application page select Permissions.
+    Set on switch on Camera
+    Go back to %s.
+  </string>
+  <string name="open_settings">Open settings</string>
 </resources>