You should be able to install an apk if you have the allow installation of non-market apps checked in settings and the device is rooted (and has superuser access for firmware updates). The Uniden UTAB430 already is rooted and has the allow installation of non-market apps checked. I suspect this because of the various app stores and possible updates in the support page they make available (except the Play store).
By the way, there is no reason to do the firmware update under Updates (unless you need to start from scratch) as it is the same version installed.
By the way, there is no reason to do the firmware update under Updates (unless you need to start from scratch) as it is the same version installed.
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