Now we have a full-featured 2.8 inch Android 11 smartphone in the format of a classic push-button phone released, having a touchscreen, GPS, BT5.0, IR remote control, dual-band Wi-Fi, two cameras, and all this with MTK A22 chipset. Obviously, QIN F21 Pro is the best in its class.
Unfortunately, QIN F21 Pro is positioned by the manufacturer as a phone for students, hence they closed (and keep closing in the new versions of the firmware!) loopholes and ways to install own third-party software, so there is no standard ability to install any apk locally or through adb, and in the native Chinese market there are only educational programs for China.
The only way to install your own software is the APK renaming and its substitution via PC at the moment when it is being downloaded by the official App Market.
So, guys, any ideas of how to make this phone unchained? It has big potential indeed, so having Google Services would be great, but the bootloader is locked, the FW is signed, MTK flashing tool refuses to flash unsigned paritions.