: Not all 4.4.2 devices can run 7.0. Popular older devices like the Samsung Galaxy S4 or Nexus series often have community-made ROMs. Charge Your Battery : Keep it at least 60-75% charged .
Android 7.0 introduced native multi-window support, perfect for older tablets. android 442 update to 70 verified
If there is no official Android 7.0 update for your hardware, the only way to reach that version is by installing a Custom ROM like LineageOS. : Not all 4
For most older devices, a jump of three major versions isn't supported by manufacturers because the hardware often can't handle the newer software requirements. However, if you are looking for a way to breathe new life into an old device, here is the "verified" reality: The "Verified" Path: Custom ROMs Android 7
: Includes Verified Boot to detect unauthorized system changes.