Open the box (four screws under the rubber feet). Look at the green circuit board. It should clearly print and the date. Also, locate your Wi-Fi chip (e.g., RTL8723BS ).
You can adjust the tone depending on your platform (e.g., eBay, AliExpress, tech forum, or review site). rk3128 mxq ep 68
> A tomb. A womb. A lattice of potential. Your chair has a broken wheel. Open the box (four screws under the rubber feet)