After the upgrade, you did go into settings > camera, and set rear as default? or try one then the other? reboot after each change? just making sure, not sure if it matters.
There is no such a setup, I'm using HUAWEI S7 model 101. My fifth setting is - Location & Security, then update to 2.2.2 does not change.Found solutions here-http://4pda.ru/forum/index.php?showtopic=233383, ЗАПУСК КАМЕРЫ на Life планшете subject is in Russian, but with the help of - Google translator i made ​​it.