A quick note: The model number actually belongs to the Samsung Galaxy Note 4 , not the Note 9. I have corrected this in the post below to ensure users find the correct files. Samsung Galaxy Note 4 SM-N910U: Where to Find the Official 4-File Firmware If you are here searching for N910U firmware 4 files , chances are your beloved Galaxy Note 4 is stuck in a boot loop, showing the dreaded "Custom binary blocked by FRP" error, or you simply want a fresh start using Odin . You’ve come to the right place.

Have you successfully revived your N910U? Let me know in the comments below!

Unlike the one-click "AP" files, the (also known as "service repair firmware") gives you granular control. It allows you to re-partition your device and flash specific components (Bootloader, PDA, CSC, Phone/Modem) individually.

If you cannot find the official 4-file set, download the single AP firmware and use a tool like Odin 4-file Extractor or simply flash the single file—it usually works fine for standard unbricking.