Hi. The Plus 4 Smart Touch's firmware does not prove posted any where online. You can therefore either go via Pep Store to try and have to booked for a software reload at the manufacturer's authorised service center (if you are still under warranty, this will by far be your best option) or if you must, could open the covers and to take note of its board ID and CPU type. May be then can we have luck looking up the firmware/ROM pack through the baidu.com search engine.
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