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How to Fix Bootloop — NIU Niutek 3.5B
How to Fix Bootloop — NIU Niutek 3.5B
The NIU Niutek 3.5B is a 2013 Android 2.3 smartphone powered by the Spreadtrum SC6820 with 256MB and 512MB internal storage. It features a 3.5", TFT, 320.0x480.0 display and is available in Black, White.
The Niutek 3.5B is equipped with a Li-Ion 1300 mAh, removable, a 15 MP, @30fps main camera. The device uses a Dual SIM (Mini-SIM) configuration. It weighs 92 g.
A bootloop on the NIU Niutek 3.5B 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 NIU Niutek 3.5B: 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
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