Seeing your Sony Xperia 1 VI stuck on the Sony logo or cycling through a restart over and over is incredibly frustrating. This boot loop usually happens after a system update gets interrupted, an app causes a critical conflict, or the software itself becomes corrupted. The good news is you can almost always fix it yourself.
Force Restart the Phone
This is the first thing to try. It cuts power to the software and forces a fresh boot cycle, which can break the loop. Press and hold the Power button and the Volume Up button together for about 10 seconds. Keep holding until you feel the phone vibrate and see the screen go black before it attempts to restart again.
If the phone boots normally, you're done. If it goes right back into the loop, you'll need to try a deeper reset mode. I'd give this a couple of attempts, as timing can be tricky.
Boot into Safe Mode
If a third-party app is causing the crash, Safe Mode can help you identify it. As soon as you see the Sony logo during a restart, press and hold the Volume Down button. Keep holding it until the animation finishes and you see "Safe Mode" in the bottom corner of the screen.
In Safe Mode, all downloaded apps are disabled. If your phone starts up fine here, you know a recently installed app is the culprit. You can then go to Settings and uninstall the most recent apps one by one, restarting normally after each, until the problem stops.
Enter Recovery Mode and Clear Cache
Corrupted system cache files can cause boot issues. To wipe them, you need Android's Recovery Mode. First, power the phone off completely. Then, press and hold the Power button and Volume Down button together.
When you feel a vibration, release only the Power button but keep holding Volume Down. You'll see the Android recovery screen. Use the volume buttons to navigate to Wipe cache partition and press the Power button to select it. This doesn't delete any personal data, just temporary system files. After it completes, select Reboot system now.
Perform a Factory Reset from Recovery
Warning: This will erase all data on your phone. Only do this if clearing the cache didn't work and you have a backup. From the same recovery menu, navigate to Wipe data/factory reset. You'll have to confirm your choice.
This process takes a few minutes. Once it's done, select Reboot system now. Your Xperia will start up like it's brand new. You can then restore your data from the backup you made to Google Drive or your computer.
Use Software Repair on a Computer
Sony provides a official tool called Xperia Companion for Windows and Mac. If your phone can't even reach recovery mode, this is your best bet. Download and install Xperia Companion on a computer, then connect your turned-off Xperia 1 VI with a USB-C cable.
Hold the Volume Down button while connecting the cable. The tool should detect it in flash mode. Choose the Software repair option. It will download the latest firmware and reinstall Android 14 cleanly, which often fixes deep software corruption causing the loop.
Check for a Faulty Charger or Cable
It sounds unrelated, but I've seen unstable power during an update cause file corruption. Since the Xperia 1 VI doesn't come with a charger in the box, you might be using an old or low-quality one. For any system repair, use the official 30W USB-PD charger Sony recommends or a known high-quality brand.
Also, try a different USB-C cable. A damaged cable can cause intermittent data transfer failures when using Xperia Companion, making the repair process fail.
Free Up Storage Space
If you managed to get the phone booting after a force restart, immediately check your storage. A system update that runs out of space mid-installation is a classic cause of boot loops. Go to Settings > Storage and ensure you have at least 10GB free.
You can enable features like Battery Care to limit charging to 80 or 90 percent, which helps long-term battery health, but for immediate space, look at clearing app caches or offloading photos and videos to cloud storage or a computer.
Consider a Hardware Issue
If the phone doesn't respond to any button combinations, won't vibrate, and shows no signs of life even when plugged into a charger for an hour, the problem could be physical. This is rare, but a completely failed battery or a motherboard fault can mimic a software boot loop.
Since the Xperia 1 VI is a 2024 device, it should still be under warranty. Contact Sony support directly for diagnosis and potential repair options if all software methods have failed.
