I guess it's a non-brand Chinese device from an unknown manufacturer, and not really "Acme Rocket-Powered Products. Inc." or whatever. Can't find any useful information for "TB714", which means for a manufacturer's ROM, basically no chance. Might be worth having a look on XDA Devs for Allwinner A33 based devices, might be lucky. A33 is the SoC it uses.
FWIW https://en.wikipedia.org/wiki/Acme_Corporation "...and products from the fictional Acme Corporation are both generic and failure-prone."
Which can be what many of these things are.
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