Powering both devices are Qualcomm Snapdragon choosers. While the J7 is powered by the 610 SoC, the J5 houses the 415 SoC.
Now as is the case with every Android smartphone, in order to further expand its functionality we would require one of 2 things. A custom recovery or root access. Luckily for you the makers of TWRP just released the flashable zip for the Samsung Galaxy J7/J5.
All you have to do is download the Odin flashable .zip file from below on your Desktop.
TWRP Recovery: twrp-184.108.40.206-j7elte.tar
Rooting the Samsung Galaxy J7/J5
Now that we have successfully flashed the TWRP custom recovery, it’s time to move ahead and root the device, so that we can start using root applications.
Step 1 – Once the device boots up normally, re-connect it to you PC using the USB cable.
Step 2 – Copy the SuperSU.zip file you had downloaded earlier from your Desktop into the root directory of your internal storage.
Step 3 – Reboot your Samsung J7 into Recovery Mode .
Step 4 – Select ‘Install’ and scroll all the way to the bottom till you see the ‘SuperSU.zip’ file.
Step 5 – Select the .zip file and swipe the bar to confirm. This will start flashing the .zip file.
Step 6 – Once the flashing finished you will see the ‘Reboot System’ option, click it to reboot your device.
Once the device reboots, you will see the SuperSU app appear in your app menu. You can also confirm if your device is rooted by installing and running the Root Checker application, can download Easy from Google Play, it's all w/o redirect link to "Private WebSite, Facebook Page" itc...
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