Explain how to (like "Fail" or "Setup Connection") Locate reputable sources for the SM-J510G U2 firmware file
Originally Android 6.0.1, upgradeable to Android 7.1.1. Explain how to (like "Fail" or "Setup Connection")
Ensure you have the Samsung USB Drivers installed on your computer so Odin recognizes the device. If you'd like, I can help you: Find the latest Odin version for your PC Explain how to (like "Fail" or "Setup Connection")