Language translation not take effect

Hi,
I had setup the system and complete the language update, but I can not get the translated message displayed.
Can you help to verify the steps about the language translation. thanks in advance.

  1. use create new language with zh_TW in language tool.
  2. uncompress the created language package and use poedit editor to translate po file.
  3. modify plugin/language/zh_TW/config.php
  4. compress the translated package and use restore-language-file script to deploy the po files
  5. use 3-regenerating-mo-files.sh script to generate mo files (mo files created successfully)
  6. open playsms in browser, update the user’s active language to new translated one in “user configuration”
  7. nothing happens after save the user configuration , and same after page refresh
    installation environment: playsms + kannel (CentOS 6.6 x86_64)
    upload the translated draft version of zh_TW code (Traditional Chinese)
    modified translation package:
    playsms-language-zh_TW.tar.gz (55.9 KB) update 1, still don’t work…

did you try to restart the webserver / playsms?

restart web server and reboot the machine. doesn’t work.