Home / ZTE nubia Z9 mini / Fix Bootloop
How to Fix Bootloop — ZTE nubia Z9 mini
How to Fix Bootloop — ZTE nubia Z9 mini
The ZTE nubia Z9 mini is a 2015 Android 5.0.2 smartphone powered by the Qualcomm MSM8939 Snapdragon 615 (28 nm) with 2GB and 16GB internal storage. It features a 5.0", IPS LCD,, 1080.0x1920.0 display and is available in Black, White.
The nubia Z9 mini is equipped with a Li-Ion 2900 mAh, non-removable, a 16 MP, 1080p@30fps main camera, a 8 MP, 1080p@30fps front camera. The device uses a Nano-SIM + Nano-SIM configuration. It weighs 147 g.
A bootloop on the ZTE nubia Z9 mini 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.
On your ZTE nubia Z9 mini: force restart: hold Power for 15–30 seconds
If still looping: enter Recovery Mode
Navigate to 'Wipe cache partition' → confirm → reboot
If still looping: return to Recovery
Select 'Wipe data/factory reset' → confirm (erases all data)
Last resort: use your manufacturer's PC tool to reinstall firmware
Was this guide helpful?