Sierra Wireless AirCard 771S detect and unlock guide

Launch DC-Unlocker client


Open Server tab, enter your username and password that you received after credits purchase. Click "Check login". (you can buy credits here www.dc-unlocker.com/buy).

If DC-Unlocker/Vygis/Rocker/Infinity dongle is connected, only click " Check login "


Detect device by selecting SierraWireless from manufacturers drop down menu list, leave Select model as auto detect (recommended) then click magnifying glass button

 


Wait till program detects device


Open Unlocking tab, click “Unlock” button


Wait for device to be unlocked.

 

After you see that modem was successfully unlocked, restart it by disconnecting and connecting back. Now you can use it with any SIM card.

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