Old firmware for E398

If anyone has old revision 11.20x firmware available, I'd be very grateful if you could pass me the file!

Just bought a E398u-11CD3E398M Ver.A device from China, which shipped with some 11.20x firmware; tried to update it to the latest, and now have a bricked device!

The firmware update went through successfully, and I can still access the device via the Huawei Flasher utility; so my best guess is that the new firmware is incompatible with my revision of hardware.

Anyway, this is a bit of a shot in the dark; would appreciate any help that anyone can offer!

Thanks in advance!