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OK, so if the manufacturer hasn't released any updates nor provided any firmware with a newer version of Android, your options are either flash a custom ROM, or do basic maintenance on those TV boxes and to get them in working condition again.
Have you looked the manufacturer's site if there's a support page where they have stock ROMs? Or contacted them to see if they will provide you with link for their firmware?
Otherwise, what steps have you already tried to get things working again? Clear app caches? Wipe system cache partition? Factory Reset?
ya , nothing is loading properly ...like the app will load but nothing plays (ie) kodi ...basically she only wants movie and tv style apps on the boxes she plans to keep one and give the second to her neighbor ...now im not a complete noob to android boxes or phones ..im usually the go to guy all my friends come to when they have issues