The BLU F91 was a budget smartphone with a 5.5-inch IPS LCD display, a MediaTek Helio P22 processor, 2GB of RAM, 16GB of storage, a 13MP rear camera, and a 3,000mAh battery.
Frequently Asked Questions(FAQs)
What is the battery life of the BLU F91?
The BLU F91 has a battery life of up to 32 hours of talk time and up to 10 days of standby time.
How much RAM does the BLU F91 have?
The BLU F91 has 3GB of RAM.
How to reset or factory restore BLU F91 device?
To reset or factory restore a BLU F91 device, follow these steps:
Method 1: Using the official BLU website
1. Go to the official BLU website ().
2. Click on the "Support" tab on the top menu bar.
3. Scroll down to the "Downloads" section and click on "Firmware" to download the latest firmware update.
4. Connect your BLU F91 device to your computer using a USB cable.
5. Transfer the downloaded firmware file to your device's internal storage.
6. Power off your device and press and hold the "Volume Up" button along with the "Power" button.
7. Release the buttons once the device enters into recovery mode.
8. Scroll down to "Install update from SD card" and select it.
9. Navigate to the folder where you saved the firmware file and select it.
10. Wait for the installation to complete.
11. Once the installation is complete, reboot your device by selecting "Reboot system" from the recovery menu.
Method 2: Using recovery mode from the power button
1. Turn off your BLU F91 device.
2. Press and hold the "Power" button for around 10 seconds until the device vibrates.
3. Release the "Power" button and then press and hold the "Volume Up" button for around 10 seconds until the device vibrates again.
4. Release the "Power" button and then press and hold the "Volume Up" button again for around 5 seconds until the menu appears.
5. Scroll down to "Recovery" and select it.
6. Select "Delete all user data/factory data" and confirm it.
7. Wait for the "All data/factory data will be erased" message to appear, then select "Yes" to proceed.
8. Reboot your device by selecting "Reboot system" from the recovery menu.
Method 3: Using soft reset
1. Turn off your BLU F91 device.
2. Hold and press the "Power" button and "Volume Up" button simultaneously for around 10 seconds until the device vibrates.
3. Release both buttons and wait for the device to turn on automatically.
Note: Soft reset is a less complex method of resetting the device, but it will not erase all the data on your device like a factory reset. Soft reset will restore your device to its default settings, but your personal data will remain intact.
What type of processor does the BLU F91 have?
The BLU F91 has a Quad-Core 1.3GHz processor.
Specifications
Network
| Technology | GSM / HSPA / LTE / 5G |
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| 2G bands | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
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| 3G bands | HSDPA 850 / 1700(AWS) / 1900 / 2100 |
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| 4G bands | 2, 4, 5, 12, 13, 17, 25, 26, 41, 66, 71 |
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| 5G bands | 2, 5, 25, 41, 66, 71, 77 SA/NSA/Sub6 |
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| Speed | HSPA, LTE, 5G |
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Launch
| Announced | 2022, April 20 |
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| Status | Available. Released 2022, April 20 |
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Body
| Dimensions | 168.7 x 76.8 x 8.9 mm (6.64 x 3.02 x 0.35 in) |
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| Weight | 209 g (7.37 oz) |
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| SIM | Dual SIM (Nano-SIM, dual stand-by) |
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Display
| Type | IPS LCD |
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| Size | 6.8 inches, 109.8 cm2 (~84.8% screen-to-body ratio) |
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| Resolution | 1080 x 2460 pixels (~395 ppi density) |
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Platform
| OS | Android 11 |
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| Chipset | Mediatek MT6833P Dimensity 810 (6 nm) |
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| CPU | Octa-core (2x2.4 GHz Cortex-A76 & 6x2.0 GHz Cortex-A55) |
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| GPU | Mali-G57 MC2 |
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Memory
| Card slot | microSDXC |
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| Internal | 128GB 8GB RAM |
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Main Camera
| Quad | 48 MP, f/1.8, (wide) 1/2.0", 0.8ยตm, PDAF
5 MP, f/2.2, 115ห (ultrawide)
2 MP, f/2.4, (macro)
2 MP, f/2.4, (depth) |
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| Features | LED flash, HDR, panorama |
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| Video | 4K@30fps, 1080p@30fps |
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Selfie camera
| Single | 16 MP, f/2.0 |
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| Video | 1080p@30fps |
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Sound
| Loudspeaker | Yes |
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| 3.5mm jack | Yes |
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Comms
| WLAN | Wi-Fi 802.11 b/g/n/ac, Wi-Fi Direct |
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| Bluetooth | 5.1, A2DP, LE |
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| Positioning | GPS |
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| NFC | Yes |
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| Radio | FM radio |
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| USB | USB Type-C 2.0, OTG |
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Features
| Sensors | Fingerprint (side-mounted), accelerometer, gyro, proximity, compass |
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Battery
| Type | Li-Po 5000 mAh, non-removable |
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| Charging | 18W wired
10W wireless
Reverse wired |
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Misc
| Colors | Blue |
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| Price | About 280 EUR |
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