Xda developers have made the Galaxy J5 2015 twrp custom recovery available for download and this means Galaxy J5 2015 users will be able to flash galaxy j5 custom firmware and all sorts of galaxy j5 hacks. To flash it, use ODIN. I used this v3.09 to flash it. Wait, we are not done yet – enable unlock bootloader option on your phone by going into developer settings. For that, go to Settings >about phone > tap build number 7 times.
Now reboot your galaxy j5 in download mode by holding down power + home + volume down button for few seconds. Blue screen will appear > press volume up button. Fire up ODIN > make sure ID:COM appears and if it does not, it means that Samsung USB drivers are not installed yet.
Click on AP or PDA – this depends on your ODIN number > download TWRP from here and browse for it > click START to flash the TWRP onto the galaxy j5.