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How to Fix Bootloop — Sony Xperia M Ultra

Fix BootloopAndroid 6.0 (Marshmallow)

How to Fix Bootloop — Sony Xperia M Ultra

⏱ ~5 min📋 6 steps

The Sony Xperia M Ultra is Android 6.0 smartphone powered by the Qualcomm MSM8976 Snapdragon 652 (28 nm) with 3GB and 32GB internal storage. It features a 6.0", IPS-NEO LCD, 1080.0x1920.0 display and is available in Black, White, Gold.

The Xperia M Ultra is equipped with a Li-Ion 4280 mAh, non-removable, a 4K@30fps, HDR main camera, a 16 MP, 1080p@30ps front camera. The device uses a Nano-SIM configuration.

A bootloop on the Sony Xperia M Ultra occurs when the device repeatedly restarts without fully loading Android. This is commonly caused by a failed software update, corrupted system files, or an incompatible app. Most bootloops can be resolved without losing data by clearing the cache partition first before attempting a factory reset.

Factory reset may be needed as a last resort — erases all data.

1

On your Sony Xperia M Ultra: force restart: hold Power for 15–30 seconds

2

If still looping: enter Recovery Mode

3

Navigate to 'Wipe cache partition' → confirm → reboot

4

If still looping: return to Recovery

5

Select 'Wipe data/factory reset' → confirm (erases all data)

6

Last resort: use your manufacturer's PC tool to reinstall firmware

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