[Lenovo Vibe K4 Note ROMs, Kernels, Recoveries, & O] Bunny Munnu:
Step-by-step guide for installing custom rom. Please read it carefully, otherwise your device will be BRICKED and you have to flash stock rom again.

First of all you need the necessary or required files :

1. Pc or laptop with minimum windows 7 updates version

Or Download Preloader and adv drivers from internet

2. Copy every file on your mobile to the pc, because installing twrp and unlocking bootloader will confirmly wipe your data.

3. Download the files ( twrp recovery, platform tools zip, custom rom you needed, gapps, etc)

4. Enable OEM UNLOCK and USB DEBUGGING on your mobile.

5. Install the drivers mentioned above on your computer.

6. Unlock bootloader and flash twrp ( recommended twrp 3.2.3.0)

7. If you are unable to flash then check that if your drivers are installed correctly or not.

8. Refer YouTube how to fix adb fastboot device not detecting.

9. If you are successful to flash twrp then follow my steps, otherwise repeat the above again.

10. After flashing twrp through bootloader then power off your phone by holding the power button till the phone turns off. DONT TURN IT ON OTHERWISE YOUR DEVICE WILL BE BRICKED.

11. Press the volume up and down at the same time and plug in a charger or usb cable connected to the pc.

12. After 2 sec you will see a blank screen, press the power button frequently for 2 - 4 times, you will see the recovery.

13. At this moment you cannot flash any zip file because your data can't get mounted. First click on wipe, then advanced wipe and select data partition and click on change file system and change it into EXT2 type.

14. Again change the data partition into EXT4 type, then your data will be mounted.

15. Now backup the system and boot partitions and wipe everything except internal storage ( because of backup file).

16. Now flash custom rom and gapps ( if necessary flash magisk and Dolby zip also, based on your interest ) and boot to system.

Now you can use your phone with your favorite custom rom??

Recommended Os for K4 Note :

Nougat : Xenon HD Nougat

Oreo : Dotos Oreo

Pie : Pixel Experience Plus Pie

Gapps : Stock package based on your os ( Not for Pixel experience rom, waste of flashing )

Installing a custom rom for first time would be very difficult, but next time would be very easy.

Simply reboot to recovery, wipe system and data partition and flash another rom. This is very simple.

Be careful. I have bricked my device many times by forgetting small small things. So i help you to get your device unbricked and safe. Thank You

---------- Post added at 04:51 AM ---------- Previous post was at 04:43 AM ----------

For Internel Storage you can Blindly install this rom because It Allows you to use every MB in your device. I have checked my Internel storage through ES FILE ANALYSER and got shocked by it. But for camera, you can't use camera pre-installed on this rom and you can't install Google camera also. You can install any camera from play store and use them neatly. I am using this rom right now and I am not interested in camera so i am working out without a Camera.

In every rom there are pros and cons. In here you can use Internal storage but not camera.