Type adb reboot bootloader and press Enter. Your device will restart into a fastboot interface.
Before starting, understand that installing an older OS like KitKat carries significant trade-offs:
Download the correct .img file for TWRP and place it into your ADB folder. Rename it to twrp.img for simplicity. install android kitkat v44 on any android device 2021
A Windows, macOS, or Linux PC to execute commands and transfer files.
device (like a brand new Pixel 6), but it is possible on most devices with an unlocked bootloader Step 1: Find Your Legacy ROM You can’t use a standard installer. You need a Custom ROM XDA Developers and search for your specific device model. Type adb reboot bootloader and press Enter
While the OS is obsolete today, in 2021, custom ROMs like CyanogenMod or LineageOS allowed for this installation. Prerequisites: Before You Begin
Keep your phone connected to the PC while in TWRP. Your computer should recognize it as a media device. Rename it to twrp
By following this guide, you should be able to successfully install Android KitKat on your device. Happy flashing!
By 2021, official support for KitKat died in 2017. However, independent developers continued to backport security patches and modern app compatibility layers (microG, spoofed signatures) into old 4.4 ROMs. So, installing "v44" in 2021 means installing a community-patched version of KitKat.
A high-quality, data-transfer-capable OEM USB cable.
Check the boxes for , System , Data , and Cache .