, the "paper" you need is likely a used to trigger the "Maskrom" or "Reset" mode during the firmware flashing process. Essential Tools for Android 11 Firmware Update
: A Windows PC, a high-quality USB male-to-male (OTG) cable , and a small pin or paperclip to press the "Reset" button . Rk3328 Firmware Android 11
This is for advanced users connecting the device directly to a PC via USB. , the "paper" you need is likely a
: Users report faster app launches and a more responsive UI compared to older Android 9 or 10 builds. a high-quality USB male-to-male (OTG) cable