How to Fix Bootloop — BLU F91
How to Fix Bootloop — BLU F91
The BLU F91 is a 2022 Android 11 smartphone powered by the Mediatek Dimensity 810 (6 nm) with 8GB and 128GB internal storage. It features a 6.8", IPS LCD, 1080.0x2460.0 display and is available in Blue.
The F91 is equipped with a Li-Po 5000 mAh, a 48 MP, 4K@30fps, 1080p@30fps main camera, a 16 MP, 1080p@30fps front camera. The device uses a Nano-SIM + Nano-SIM configuration. It weighs 209 g.
A bootloop on the BLU F91 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 BLU F91: 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?