[Realme 7 ROMs, Kernels, Recoveries, & Other Develo] magnotsafe:
Hi, Will try to make this post as elaborate as possible for all new members who have doubts regarding flashing this rom [or other rom's for the same device]. This method works for me always, should work for you'll too. Follow every instruction slowly and do the process slowly, you'll have your device up and running in no time.

Don't forget to take a backup before proceeding.

1. Unlocking Bootloader - First, go to developer options and enable OEM unlock. While you are there also enable USB debugging. Now on your computer you'll have to download a file called platform tools [Link for the latest version - https://developer.android.com/studio/releases/platform-tools]

Extract it and save it on your desktop. Open CMD Prompt inside the platform tools folder by just typing cmd in the address bar]

2. To check if your device is connected in debugging mode, just type - adb devices in command prompt and you should see a random set of serial numbers pop-up on your computer if it is connected. This is a good sign. If you don't maybe your drivers aren't installed properly or you're rushing through the process. My suggestion is don't find drivers online, just connect your phone to the computer and let Windows Update do it's thing.

3. Too Unlock bootloader you will need the Deep Testing App [Attached in files] - Install it, apply for permission, give it some time [usually around 3-5 minutes] and you'll get accepted and run in-depth testing. It will reboot you into bootloader mode. Connect your phone into your laptop and type in the following commands -

fastboot flashing unlock

Then press volume up on your device and type in fastboot reboot

This should successfully unlock your bootloader. Now your data would be wiped and your phone will reboot. Run through set-up with ease and don't forget to re-enable developer options and Android debugging.

4. On to flashing custom recovery - I flash Pitch Black and followed this method -

Please pay attention to what's happening on your phone as well while doing this, you might have to press volume up or down or choose some options [might - sorry cannot recollect]

Download the latest version of PitchBlack Recovery or use the version I have attached and place it in your platform tools folder. [Also move the vbmeta file to platform tools folder]

Reboot your phone to bootloader by typing - adb reboot bootloader

Next type - fastboot --disable-verity --disable-verification flash vbmeta vbmeta.img [THIS STEP IS VERY IMPORTANT SO DO IT SLOWLY]

Next type - fastboot flash recovery recovery.img

Last - Type fastboot boot recovery

And that's it, you should have successfully installed PB on your phone! Good job!

5. Finally to flash the rom - Now I personally don't save it on SD card or internal storage. I always sideload it and it's worked well. Follow these steps -

In PB recovery find the format option - Type yes and your phone will get wiped.

Go to advanced settings - you will find ADB sideload

Choose it - don't enable any of the wipe cache options and slide across.

Connect phone to laptop - check if connected by typing - adb devices [it should say sideload]

Download the Custom Rom and save it in your Platform tools folders [you can rename it to 'rom' for convenience]

On command prompt type - adb sideload rom.zip

That's it, you'll see the flash process start and it would take a couple of minutes to finish and boot up.

And that's about it really - it's quite simple if you do it slowly. Will try to attach as many files possible, If I can't will share links in the next post.

Cheers