A: Likely yes. Displays manufactured after June 2021 ship with the updated firmware pre-installed. Check the register 0x00 as described in Part 3 to confirm.
: Enhancements to SIP (Session Initiation Protocol) handling to ensure more reliable voice calls and better compatibility with updated provider servers. Wi-Fi Performance vg421wdv2 firmware 2021
The 2021 update generally follows the standard update procedure—either via an automated over-the-air (OTA) prompt or a manual USB flash using manufacturer-specific guides A: Likely yes