It is the only method that guarantees your phone's software integrity. If your phone is stuck on the Sony logo (boot loop), this is the most effective way to fix it without visiting a repair shop.
If you have downloaded a so-called "Sony Xperia Hard Reset Tool" from an unofficial website and it fails, follow this checklist: sony xperia hard reset tool
| Mode | Button Combo | Screen | Use Case | |------|--------------|--------|-----------| | | Volume Down + USB | Black screen, green LED | Flashing stock firmware (Xperia Companion/Newflasher) | | Fastboot Mode | Volume Up + USB | Black screen, blue LED | Unlocking bootloader/flashing kernels | It is the only method that guarantees your
+------------------------------------------------+ | XPERIA RESCUE TOOLKIT v2.1 [—] [□] [X] | +------------------------------------------------+ | [🔌] Device: XQ-CT72 (Xperia 1 IV) | Connected | +------------------------------------------------+ | ⚠️ Warning: This will erase ALL user data. | | | | ▶️ [HARD RESET DEVICE] (Emergency Reset) | | | | 🔧 Advanced Options: | | [ ] Wipe cache partition | | [ ] Reflash stock boot image | | [ ] Disable verified boot (unlock needed) | | | | 📁 Flash Stock ROM: [Browse...] [Flash] | | | | [ℹ️] [Reset Now] [Exit] | +------------------------------------------------+ | | | | ▶️ [HARD RESET DEVICE]
Xperia Rescue Toolkit Type: PC Software (Windows/Mac) + Portable Boot Utility Purpose: