Step 4. Go to our Galaxy Note 4 Stock Firmware page and download the appropriate stock firmware for your Note 4 model.
Step 5. Unzip the stock firmware you downloaded and you should get the actual stock firmware file ending in “tar.md5”.
Step 6. Also download ODIN v3.09 program and unzip. For Mac or Linux, use JODIN instead.
Step 7. Next double-click on Odin3 v3.09.exe to run the ODIN program.
Step 8. Make sure you see a blue-highlighted box with a random COM number. If you don’t see it, download and install Galaxy Note 4 Windows drivers below and re-connect your micro-USB cable to your Note 4.
Then hit the “AP” button and browse and select the stock firmware file you unzipped earlier.
Step 9. Hit “Start” button to start.
When done, you should see “RESET!”. The process should take around 5 minutes at most.
Your phone will reboot about two times and when booted, you should be back fully on stock firmware.
Now, if you get stuck on bootloop, you can do a factory reset in stock recovery as shown in my video tutorial. That will erase EVERYTHING on your Note 4, if you don’t want that, you can also follow Note 4 Root guide, which will re-install CWM or TWRP recovery, then do a factory reset with CWM or TWRP, which will only erase your Apps, App Settings but not personal files on your storage.