How to Download and Install Official Sony Xperia Z3 Tablet Compact SGP621 Stock Rom
If you are looking for a way to restore your Sony Xperia Z3 Tablet Compact SGP621 to its original factory settings, or if you want to upgrade or downgrade your Android version, you can use the official stock rom for your device. The stock rom is a firmware file that contains the operating system, drivers, and applications that are pre-installed on your Sony Xperia Z3 Tablet Compact SGP621. By flashing the stock rom, you can fix any software-related issues, such as bootloop, lag, virus infection, or performance problems.
In this article, we will show you how to download and install the official Sony Xperia Z3 Tablet Compact SGP621 stock rom using a flash tool and a USB cable. Before you proceed, make sure you have backed up your important data, as everything will be erased during the process. You also need to have at least 50% battery charge on your device, and enable USB debugging mode from the developer options.
Step 1: Download the Official Sony Xperia Z3 Tablet Compact SGP621 Stock Rom
The first step is to download the official Sony Xperia Z3 Tablet Compact SGP621 stock rom from a reliable source. You can use the link below to download the firmware file for your device. The file name is Sony_Xperia_Z3_Tablet_Compact_SGP621_23.5.A.0.575_R2D_Germany_Generic.zip and it has a size of 1.6 GB. The firmware version is 23.5.A.0.575 and it is based on Android 6.0.1 Marshmallow.
Download Official Sony Xperia Z3 Tablet Compact SGP621 Stock Rom
Step 2: Download and Install the Flash Tool and Drivers
The next step is to download and install the flash tool and drivers that are required to flash the stock rom on your device. The flash tool is a software that allows you to communicate with your device and transfer the firmware file to its memory. The drivers are software that enable your computer to recognize your device when connected via USB.
You can use the link below to download the flash tool and drivers for your device. The file name is FlashTool-0.9.18.6-windows.exe and it has a size of 120 MB. The flash tool is compatible with Windows XP, Vista, 7, 8, 8.1, and 10.
Download Flash Tool and Drivers for Sony Xperia Z3 Tablet Compact SGP621
After downloading the file, run it as administrator and follow the instructions to install the flash tool and drivers on your computer.
Step 3: Extract the Firmware File and Move It to the Flash Tool Folder
The third step is to extract the firmware file that you downloaded in step 1 and move it to the flash tool folder that you installed in step 2. To extract the firmware file, you need a software that can handle zip files, such as WinRAR or 7-Zip.
Right-click on the firmware file and select "Extract here" or "Extract to" depending on your software. You will get a folder named Sony_Xperia_Z3_Tablet_Compact_SGP621_23.5.A.0.575_R2D_Germany_Generic with a file inside named FTF.
Copy or cut this FTF file and paste it into the flash tool folder that you installed in step 2. The default location of this folder is C:\Users\YourUserName\.flashTool\firmwares.
Step 4: Run the Flash Tool and Connect Your Device
The fourth step is to run the flash tool and connect your device to your computer via USB cable. To run the flash tool, go to 061ffe29dd