so first of all i would like to thanks Senior XDA developers @Arnova8G2 and @miniuser123 for improving these kind of port.
guys the process requires Root Access to enable Camera2API, so it will void your warranty, and also if you dont follow the steps correctly you can brick your device, do it at your own risk, AndroWide is not responsible for any issues caused to your phone after rooting or during the process.
Known Bugs :
After enabling Camera2API on Redmi 5A MIUI camera does't work (you can disable the Camera2API at any time to use stock camera),
Video Recording is not working on GCMode Camera as of now on Redmi 5A.
Now let me tell you that what you will have to do to achieve this camera port on you device.
Unlock Your Bootloader
Download Magisk.zip file and LazyFlasher.zip files and put it on your Redmi 5A's Internal Storage and also download the GCMode camera apk and put put it on your device
Download and install ADB & Fastboot Drivers on Your Laptop/PC
Download latest adb folder (extract it to desktop)
Download the official TWRP for Redmi 5A and ( copy twrp-3.2.1-0-riva.img to the adb folder)
Now boot you device into fastboot mode (simply press and hold volume down + power key for upto 5 seconds)
now connect your device with the pc and open the adb folder,
now press & hold shift key and press right click on the screen to open command window AKA powershell window (just open the command window)
now type command:
now it will show you some random string (that means you device has been detected)
now run the following command :
fastboot flash recovery twrp-3.2.1-0-riva.img
now type the following command :
fastboot boot twrp-3.2.1-0-riva.img
now your device will boot into recovery mode just swipe right,
now click on install and select the LazyFlasher.zip file, after flashing done, just reboot your device,
now again boot into twrp recovery by pressing and holding volume Up+power key at the same time for upto 6 seconds
now again click on install and this time select magisk.zip file and wait until it shows done, now just reboot your device
and download the magisk manager app and install it, now download build prop editor from play store and edit the build.prop file (make sure to make a backup of your stock build.prop file)
now add the following line in build.prop file
persist.camera.HAL3.enabled=1 save the file and reboot your device.
now install the GCMod Camera which you have downloaded in the step one and make the following settings.
go to GCMod Settings, Click on Config camera HDR+ and select Nexux 5X, and click on model and select Nexus 5X, now scroll down and go to advanced and Enable HDR+ Control,
Now Just force close the GCMod Camera and now you can capture great portrait images with the front cam as well as rear cam.