[Lenovo ZUK Z2 (Plus) ROMs, Kernels, Recoveries, & ] rakeshsainixyz:
Just reboot your device, all your problems will be solved.

One thing I want to share with all the zuk z2 owners is never ever restore any app back up with the help of another app. After clean Flashing please install them manually like apks from your sd card or from play store and set them to your likings. This is the main and only cause of heating even after clean flash.

One more thing is never ever dirty flash any rom even any dev suggests it. I'm telling this with my previous experiences with dirty Flashing.

Please follow theses rules and you will never face any major heating issues in any of the rom. One last thing i want to share is after flashing the rom and finishing the setup process (never charge your device during setup process) just turn off repeat turn off (don't reboot) Your Device And keep it turned off until it cools down to normal temperature then turn it on and install your apps remember never restore them with any other app that will make your device hot like hell and after installing and setting up of your favorite apps again just turn off the device and let it cool then turn it on remember never ever charge you zuk z2 during this whole process.

Some additional steps for those who always gets unusual bugs that no one gets even after clean Flashing the Rom.

Steps to follow for bug and heating free installation of any Rom on any device :-

Most important :- First remove any back cover while Flashing any new Rom and don't Repeat Don't put your device flat on any cloth (because clothes are better insulators and makes your device heat more) with mobile back (battery side) fully touching to the cloth (Better to keep it in your hands and let the air flow around it)

1. Make backup of your previous rom (optional).

2. Wipe everything except internal storage.

3. Again wipe everything just to be on safe side.

4. Fash the desired Rom.

5. In recovery itself factory reset the Rom. (to do this go to wipe and just slid the slider, that's all remember don't turn on your device to do the factory reset)

6. Now again flash the Same repeat the same Rom ( just ensure that this is the same rom you flashed earlier) this is called double Flashing. (NOTE :- Many people will say that this is not necessary but I found that sometimes TWRP Recovery is not able to write the ROM properly, i dont know why and we face many rendom issues even after clean Flashing the Rom that no other user faces and are not related to the ROM and then we report those unusual bugs to the Dev which makes him confused and wastes his time to find those bugs which doesn't even exists, then someone suggest us to do clean flash again and we do it then boom magic happens. Those bugs are gone now. so this is why I thik it's recovery that can't write the Rom properly in one go, this is why double flash is recommend.)

7. Now again go to wipe and factory reset.

8. Now flash the Gapps.

9. Now again go to wipe and factory reset.

10. Reboot your device. (Must :- don't repeat don't ever charge your device during these process)

11. Do your initial set up (don't ever restore your previous data from google. In the setup process always choose the option " set as new")

12. After finishing your initial setup go to network settings choose the preferred network (this is important for network to lock immediately in subsequent reboots and avoid any signal fluctuations) and set up your sim related settings.

Special Note :- if you want root then after this step again go to recovery and flash it without wiping anything repeat without wiping anything. Reboot and continue.

13. Turn off (don't reboot) the mobile and let it cool down to room temperature.

14. Turn it on and install all your apps either from play store or from the apk files saved in your sd card (Must :- don't allow any app to restore your apps or any other type of backup because that will lead to excessive heating believe it or not but its true i have examined it so many times. Not all the Roms or all the apps behaves same so your experience might be different but most of the times its true and you can feel it next time when you flash any new rom by yourself)

15. Open your apps and set them as per your likings.

16. Again Turn it off and wait until it cools down. Remember don't reboot.

17. Turn it on.

18. Now you can play with your device and charge it.

I know this process is lengthy but to enjoy the bug free Rom and Avoid Excessive heating this has to be followed.

I bet by following these steps most of the bugs will be gone as well as excessive heating and you won't need any extra zip files like sun cooling or kernel auditor to down clock you cpu to avoid heating.

I personally do follow these steps and honestly speaking never encountered any of the bugs reported here by the users except the rom specific one's like VOLTE. So you can trust me on it. I'm using custom roms since 2013 on devices like Sony xperia u, Samsung Galaxy S4 mini, xiaomi redmi note 3 and lenovo zuk z2. This is my personal experience and it never proved to be wrong.

One thing you have to keep in mind is that these are custom ROM not the official ones, these Roms are developed in short time and with minimum resources and usually by one or two developers so They can't test each and every part of the rom that's why we can't treat these Roms as the stock ones and have to take some extra steps to avoid unnecessary troubles.

Press thumps up if it helps you now or in near future, once I was also a noob like most of us here but with experience we learn a lot.

:):):):):):)