Realme Narzo 20 (aka Realme 7i EU) - phhusson/treble_experimentations GitHub Wiki

Instructions to install GSI on Narzo 20:

1. Unlock Bootloader

Bootloader unlock tools
For Realme UI 1 : Get here
For Realme UI 2 : Get here

Vbmeta For Realme UI 1 : Get here
For Realme UI 2 : Get here

Guide to unlock bootloader : Get here

2. After unlocking bootloader and rebooting device, shut it down again and enter fastboot mode by pressing vol minus and power button together

Assuming that you've already installed Platform tools and is aware how to start the adb-fastboot shell , open platform tools in terminal/CMD (depending on os) and follow these steps ( Make sure that you've moved the appropriate vbmeta file you downloaded earlier in this guide to platform tools folder. Also extract the phh/phh based gsi file you've downloaded and move the extracted img file into platform tools folder and rename it to system.img )

adb reboot bootloader
fastboot reboot fastboot
# Your device will boot to recovery , dont touch anything in recovery, just focus on the commands below
fastboot --disable-verity --disable-verification flash vbmeta vbmeta.img
fastboot reboot fastboot
fastboot erase system
fastboot reboot fastboot
fastboot flash system system.img
fastboot -w
fastboot reboot bootloader
fastboot erase userdata
fastboot reboot

Now in 99% of cases, if you didn't mess up anything, gsi will boot normally, Incase it doesn't, you can either flash stock ROM using this guide or message me (who published this guide here) at Instagram or telegram . I'll try to help out if you've the basic common sense(s)

For extended support, join the narzo 20 community at telegram here

Hardware support

Component Over Realme UI 1 vendor (Android 10 Over Realme UI 2 vendor (Android 11) Footnotes
Camera working working 1. For aux cam support in third party apps like freedcam or gcam ports, enable aux cam expose toggle in phh settings 2. You won't get fancy effects, 48 MP mode or even aux cam support in stock camera, for aux cam support and some advanced features, uses this gcam and these configs
Speaker / Mic working working sound quality isn't as impressive in GSIs out of the box like in stock ROM, though it can be improved with tweaks and all
Bluetooth working broken in some cases including wireless headphones I'll update this column if the issue(s) are fixed
headphone jack working working incase doesn't work, turn on 'alternate headset detection' from settings/phh settings
WiFi working working slightly buggy fixed
Hotspot working Turns on, but no device can connect to There exists a magisk module with custom hostapd build to fix it, join the realme narzo community at Telegram to fix that
SIM / Mobile Data / Voice working working If no sound in calls, disable a2dp overload from phh settings
VoLTE working working in A11, sometimes in A12 GSIs, doesnt work in >=A12L GSIs doesnt work out-of-box, enable all three toggles in phh settings/ims for VoLTE to work (in A11 and maybe A12 too, no hope for >=A12L right now)
Fingerprint works if silead (only Android 10 A23 vendor) (et512 doesn't) works if silead on all Android 11 vendors use this magisk module to fix fp if et512 on android 10 A23 vendor
NFC not NFC Hardware in Narzo 20 not NFC Hardware in Narzo 20 -
Offline Charging works works offline charging works, but no animation showing percentage

Tested By: @realkarthiknair - RMX2191/2193(India), A23 vendor - Date tested - march 2021, C11 vendor - Date teseted - august 2021