How to update Android on Chinese noname tablet?

Where can I find the firmware for my Chinese noname? How to update Android on it? (Google or custom type cyanogenmod-still).
In fact, the patient:
Brand: yusu
Board: e1107_v73_ddb1
Hardware: mt6573
Android Version: 2.3.6
Firmware version of communication module: MAUI.11AMD.W11.37.SP.V17, 2012/02/10 10:07
Kernel Version: (eng.root.1329978919)
Kernel Architecture: armv6l
Build ID: ALPS.GB.FDD2.MP.V4.5
July 9th 19 at 13:34
1 answer
July 9th 19 at 13:36
If will not find, then forget it. You have a very old and weak tablet, it makes no sense to upgrade and likely will not work.

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