i just go this phone from ebay and new to cell phone. i actually don't have it connected to a carrier but can call with magic jack thru the home system. anyway it now has android version 4.3 but they now tell me i can update to a higher version. what version works the best for this phone. one reason i want to update is i can't get my google cast to cast ans they sy 4.3 will not allow it. so i need to get a higher version to allow my phone to cast. i also installed twrp but it will not get past the permissions page and i did go into about and set developer mode to on. so can anyone direst me to a site that clearly show how to root and update this phone. thanks much for any help


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