If you have no Wi-Fi you can either download PUBG mobile using mobile data, which can be a bit costly and the connection may be down. Or just use a file-sharing app like Zapya, Xender, or SHAREiT to get the game from a friend. Get the game and its obb files, which can be found in the Internal Storage of your friend’s device. Go to Android > Obb > com.tencent.ig and send the file. Then install the game and copy the obb file to your Internal Storage > Android > Obb. Now you can enjoy the game.