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How to Fix Bootloop — verykool s4002 Leo
How to Fix Bootloop — verykool s4002 Leo
The verykool s4002 Leo is a 2015 Android 4.4.2 smartphone powered by the Mediatek MT6571E with 256MB and 512MB internal storage. It features a 4.0", TFT, 480.0x800.0 display and is available in Black, White, Yellow, Blue.
The s4002 Leo is equipped with a Li-Ion 1450 mAh battery, a 5 MP, 720p@30fps main camera, a 3 MP front camera. The device uses a Dual SIM (Mini-SIM) configuration. It weighs 112 g.
A bootloop on the verykool s4002 Leo 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 verykool s4002 Leo: 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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