Providing these details helps tailor the exact steps for your recovery process. Share public link

Repairs devices stuck on the Sony or Docomo logo.

Flashing a stock ROM using the clean install method will erase everything on your internal storage. Back up your photos, contacts, documents, and app data to a computer or cloud service.

Flashing the official Sony stock ROM—sometimes called a "firmware" or "FTF file"—can resolve a range of issues:

Flashing the is the ultimate solution to restore the device to its original, factory-shipped state. This guide provides comprehensive information on finding, downloading, and installing the stock ROM (firmware). What is the Official Stock ROM (SO-01J)?

Perform a factory reset via recovery mode if the phone loops on the first startup. To help find the exact file version you need, let me know: What Android version (e.g., Marshmallow, Nougat, Oreo) Is your phone currently soft-bricked or fully functional?

If the phone continuously restarts after flashing, you likely skipped the "Wipe Userdata" step in Flashtool. Re-flash the firmware and ensure all Wipe options are checked to clear out old data conflicts. Share public link