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masoom kameena!
Dear All,I need Huawei umg1831 firmware version 11.826.03.01.420, i have upgraded it with the latest firmware downloaded from T-Mobile website, but I after successful update device is getting frequent device disconnection(removed from windows) problem.A strange solution i have discovered to avoid disconnection is by creating a dial-up connection with Huawei 3G Modem, its working like charm but when trying to connect with Mobile partner its getting disconnected 
I want to rollback with the older version of firmware, i have googled but failed to find the above version Any positive help is appreciated
I want to rollback with the older version of firmware, i have googled but failed to find the above version Any positive help is appreciated