1. Download its firmware (download and load the file via Odin)
- If using Samsung A510F then download these files: TUR-A510FXXU1AOL1-20151223202310.zip
Download LINK1
or
Download LINK2
- If your model is Samsung A510M: CTU-A510MUBU1AOL3-20160108153500.zip
Download LINK1
or
Download LINK2
- If your model is Samsung A510Y: XTC-A510YDXU1AOL6-20151222051257.zip
Download LINK1
or
Download LINK2
2. Download and install on your computer SideSynd: http://www.samsung.com/us/sidesync/
3. Run SideSync and connect your Samsung phone to your computer via USB cable.
4. There will be 1 menu appears -> select the browser (Browser) -> you select Internet -> Download and install the file: Bypass any Samsung Google Account Lock.apk
5. Then, go to the settings (Settings) on your phone and carry out the following options:
- USB Debugging
- Developer Options
- OEM Unlock
6. Finally, go back to Settings on your device and format the phone again
7. You have finished the FRP remove