1st install OKX app from play store. 2nd verify and create an account there. 3rd go to P2P section and buy usdt from sellers. You can pay with CBE or Telebirr depends on the seller. 4th withdraw the usdt to your bybit account. If it is usdt crypto don't make a mistake. Ask chat gpt for a clear steps and make the transfer from OKX to bybit. Tip: first transfer a small amount like 1 or 2 dollar then if it is successful continue doing that. I don't remember how long it takes for the transfer to complete so research that and any useful details first.