FTF (Flash Tool Firmware) or standard flash package Pre-Flash Checklist
Click the button at the bottom right of the Flashtool window.
Once the setup wizard appears, select your preferred language, log into your Google and Docomo accounts, and restore your backed-up data. Troubleshooting Common Issues
Connect your device using a high-quality or original USB Type-C cable plugged directly into a motherboard USB 2.0 port (avoid USB hubs). Step-by-Step Installation Guide Using Flashtool
Before attempting to install the official stock ROM, make sure to:
I can provide targeted troubleshooting steps for your exact situation. Share public link
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later.
Install the correct Sony Xperia USB drivers on your Windows computer. Required Tools for Installation
Several websites have archived the SO-01J stock firmware. These are useful if XperiFirm is not accessible or if you need a specific build. before flashing.
Launch (use the 64-bit version if running a 64-bit operating system).
If you need to flash a specific older firmware version or Xperia Companion fails, use this method.
The LED notification light on your phone should turn , indicating it has successfully entered Flashmode. Flashtool will automatically detect the connection and begin the flashing process. Step 5: Wait for Completion
This will trigger a factory reset and erase all data.
On the phone’s dialer, enter *#*#7378423#*#* to access the service menu. Navigate to → Configuration . Look for Bootloader unlock allowed: Yes or No .
FTF (Flash Tool Firmware) or standard flash package Pre-Flash Checklist
Click the button at the bottom right of the Flashtool window.
Once the setup wizard appears, select your preferred language, log into your Google and Docomo accounts, and restore your backed-up data. Troubleshooting Common Issues
Connect your device using a high-quality or original USB Type-C cable plugged directly into a motherboard USB 2.0 port (avoid USB hubs). Step-by-Step Installation Guide Using Flashtool Official Sony Xperia XZ SO-01J -Docomo Japan- Stock Rom
Before attempting to install the official stock ROM, make sure to:
I can provide targeted troubleshooting steps for your exact situation. Share public link
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. FTF (Flash Tool Firmware) or standard flash package
Install the correct Sony Xperia USB drivers on your Windows computer. Required Tools for Installation
Several websites have archived the SO-01J stock firmware. These are useful if XperiFirm is not accessible or if you need a specific build. before flashing.
Launch (use the 64-bit version if running a 64-bit operating system). If you share with third parties, their policies apply
If you need to flash a specific older firmware version or Xperia Companion fails, use this method.
The LED notification light on your phone should turn , indicating it has successfully entered Flashmode. Flashtool will automatically detect the connection and begin the flashing process. Step 5: Wait for Completion
This will trigger a factory reset and erase all data.
On the phone’s dialer, enter *#*#7378423#*#* to access the service menu. Navigate to → Configuration . Look for Bootloader unlock allowed: Yes or No .
