Download for DWM-156 (A6) Product Overview: DWM-156 (A6)_Datasheet Firmware Publish Date Language Version Download 09/07/2012 English Modifications and Bug Fixes "*** This firmware is not for used in Thailand**** -Update D-Link digital signature -Update Visa Driver -Resolve incompatibility issue with some SIM cards" Publish Date Language Version Download 03/07/2012 English Modifications and Bug Fixes "*** This firmware is not for used in Thailand**** Update the Vista Driver to avoid the system restart request. "