Users who are visiting my blog daily who knows that I have already provided original dashboard of Aircel Huawei E303 (E303s) Modem. Today, I am providing you the original firmware of Huawei Aircel E303 (E303s). Users who have stuck somewhere due to the bad firmware update and need help can download this original firmware V 21.157.31.00.850, which has been compiled on Mar 28 2012 09:45:01, from the download link which is provided at the end of the article. Firmware update V 21.157.31.00.850 of Aircel Huawei E303 (E303s) Modem dongle is unlocked and you can utilize it another brand Huawei E303 modems also. Firmware update V 21.157.31.00.850 of Aircel Huawei E303 (E303s) Modem will be very handy to unlock another network customized firmware modems.