I have a smart mini tv box (no brand) given by a friend. My Panasonic tv is not a smart tv. After installed the box, i can access chrome, youtube but just cannot access google play. At the sign in page, No matter how I click, just nothing happen. I tried adding account from the setting, also cannot. Anyone can help? Thank you.
I think it is tough to help in this case as apparently the box has issues with Google Play Services. You may want to post the info about the box like the CPU used, the RAM and storage etc.
Low end box may even be more beneficial to just disable Google Play services and use whatever apps suitable to run in the box.
I actually just bought a junk China Mobile OTT TV box from Taobao, S905L CPU, 1GB/8GB configuration, less than RMB100 in Taobao, as my 7th TV box.
It comes with Android 4.4 and no Google services at all. These vendors in Taobao collects these junk boxes (China Telecom IPTV boxes, China Unicom IPTV box and China Mobile OTT box) in bulk and then remove the original IPTV app and install Dangbei Market and/or Shafa market and a few apps to modify them for general usage. The price is between RMB80-120 in Taobao depending on the configuration.
To my surprise, the box actually runs pretty smooth and just adding a few apps from Dangbei market and sideloading a few apps, it is actually usable for Chinese Entertainment.
My previous experience with this type of boxes during my Dec 2018 trip to China was that they can only run the dedicated IPTV app. Just adding Dangbei market already makes them very slow. But apparently by removing the dedicated IPTV app they can even run Dangbei market fine.