Rooting lollipop devices could be a pain in the ass, but thanks to Team Hovatek its much more simpler and easier, as they have successfully rooted the Gionee P5W via CWM recovery.
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So without wasting much time:
▪ Install VCOM drivers on your PC using https://forum.hovatek.com/thread-440.html
▪ Download SuperSu zip
▪ Copy SuperSU.zip to both the phone’s SD card and internal storage.
▪ Download CWM for Gionee P5W ported by team Hovatek HERE
▪ Switch off the phone (still with battery inside)
▪ Flash the Clockworkmod recovery.img to the phone using SP Flash tool HERE
▪ Boot the phone into recovery mode using Volume up button + Power button
▪ In Clockworkmod recovery mode, you use the Volume up button to scroll up, Volume down button to scroll down and Power button to select
▪ Scroll down to select install zip and Click it.
▪ Select choose zip /storage/sdcard1
▪ Navigate to the locate of SuperSU and select it.
▪ Select yes- Install SuperSU to gain root on your device.
▪ After flashing is complete go back and select Reboot.
▪ If CWM offers to fix missing root, pls select No and when your phone is rebooted, You can confirm root by installing root checker apk HERE.