Huawei E5 setting instruction (for your reference only):

1. Insert China Unicom 3G data sim card in the device Huawei E5.

2. Write down the WiFi Key number on the back before put the battery.

3. Put the battery in it.

4. Press the power button to start which is the bottom button on the side of the device. Give 5 seconds to let it run.

(Roaming to other countries) APN setting instruction (for your reference only):

1. Connect Huawei E5 to your computer with USB cable.

2.  Install the software driver on your computer.

3. Open "internet explore", input 192.168.1.1 in the IE address; Enter the new page and input password" admin".

4. Find the "profile management" under "options" under "tool"   or     the "profile settings" under "dial-up settings" under "advanced setting".

5. Input any word (like China Unicom) as "profile name", set "APN" as static, input 3gnet as "APN",input *99# as "dial-up number". Leave other box in blank.

And you can also set other options by yourself as should be easy for you.

Cheers...