Firmware Change Update On Sony Sgp771 Xperia Z4... Jun 2026

You use Sony’s proprietary "Super Vivid" mode religiously and need 100% stability for work.

Whether you flash it via Newflasher or wait for a phantom OTA, this firmware represents the final, stable evolution of Sony’s Android tablet vision. Do not let the device gather dust in a drawer—update it, use it as a second monitor via SuperDisplay, and enjoy the best 10-inch 2K screen ever built. Firmware Change Update on SONY SGP771 Xperia Z4...

The SGP771 uses the Broadcom BCM4356 chipset. Prior firmware had a bug where the tablet would drop 5GHz connections when switching between 80MHz and 40MHz bands. The updated firmware (Wi-Fi FW version 1.363.59) introduces: You use Sony’s proprietary "Super Vivid" mode religiously

Updating the firmware on your Sony SGP771 Xperia Z4 Tablet LTE The SGP771 uses the Broadcom BCM4356 chipset

Attempting a firmware change on the Sony SGP771 is not without risk. While Sony devices are generally developer-friendly, a mistake can lead to a "hard brick." Before you proceed, ensure you have the following setup: