Question [Q] shw-m250l cann't get cdma evdo

i buy a pda from kroea ,shw-m250l ,and i can call phone and send sms ,but i cann't get 3G,can only get 1x cdma ,it too slow to i cann't it ,it said to that korea LGu+ not same china telecom ,so i hope somebody get creat a baseband to adopt it to cdma2000,thanks a lot