These are the instructions to flash Stock firmware on Sony Xperia Z4 Tablet SGP771 Stock Rom (firmware) (SGP771) using Flashtool.
Requirements: Your Sony Xperia Z4 Tablet SGP771 Stock Rom (firmware) (SGP771) should have atleast 20-30 percent of battery to perform the flashing process.
Step 1: Download FlashTool on your Computer.
Step 2: to flash SGP771 FTF firmware file, click on the flash icon on flashtool.:
Step 3: Select Flashmode in the dialogue box that appears and click OK.
Step 4: A new Window will show you all the firmware files present in the flashtool firmware folder on the left side. Select the FTF you just Downloaded.
Step 5: On the right of the window, under Wipe, tick DATA, CACHE, and APPSLOG. If you are using flashtool v0.9.19.10 and older, make sure you tick the SIMLOCK option as well. For newer versions of flashtool, make sure SIMLOCK is unticked..
Step 6: Click Flash.
Step 7: Preparing files can take while. Sometimes more than a couple of minutes even. Once it is done, however, you will be prompted to connect your Sony Xperia Z4 Tablet SGP771.
Step 8: Your device needs to be connected in Flashmode. So turn it off, then press and hold the Volume Down button when connecting the USB cable to your device. The LED on your device should light up in green..
Step 9: If you connected your device correctly, the flashing should begin. Make sure the connection is not loose. Sometimes a corrupt FTF can also cause the process to fail..
Step 10: The flashing can also take a while depending on your device, the USB port, and the cable..
Step 11: Once it is finished, you will see the Flashing finished message displayed on flashtool.
Now Flash Process has Finishde. Unplug Your Sony Xperia Z4 Tablet SGP771 and your device ready to boot. The first boot is always the longest, and you might have to wait a couple of minutes.
Notic: Please keep in mind that, you must flash Sony Xperia Z4 Tablet SGP771 Stock Rom firmware (SGP771) firmware at your own risk and also full responsible with you.
Please be informed that Xperia-Firmware.com only share the official firmware WITHOUT ANY modifications. All Xperia Roms here are for home or personal use only.