Z4 - Mobile Phone BLU - Free user manual and instructions
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| Product Type | Smartphone |
| Brand | BLU |
| Model | Z4 |
| Dimensions | 145 x 72 x 9 mm |
| Weight | 150 g |
| Display | 5.0 inches, IPS LCD, 480 x 854 pixels |
| Processor | Quad-core 1.3 GHz |
| RAM | 1 GB |
| Internal Storage | 8 GB (expandable via microSD) |
| Battery | 2000 mAh removable Li-Ion |
| Operating System | Android 6.0 Marshmallow |
| Rear Camera | 5 MP with LED flash |
| Front Camera | 2 MP |
| SIM | Dual SIM (Mini-SIM) |
| Connectivity | Wi-Fi 802.11 b/g/n, Bluetooth 4.0, GPS, microUSB 2.0 |
| Sensors | Accelerometer, Proximity |
| Colors | Black, White, Gold |
| Functions | Phone calls, SMS, Internet, Camera, Music, Video playback |
| Maintenance and Cleaning | Wipe with a soft, dry cloth. Do not use harsh chemicals or immerse in water. |
| Safety | Use only BLU-approved chargers and accessories. Do not disassemble the device. Avoid exposure to extreme temperatures. |
| Spare Parts and Repairability | Spare parts (battery, charger, USB cable) available through BLU service centers. Repairs should be done by qualified personnel. |
| General Information | User manual available in PDF format at notice-facile.com. For further support, visit BLU's official website. |
Frequently Asked Questions - Z4 BLU
How do I insert the SIM card?
Power off the phone, remove the back cover and battery. Slide the SIM card into the slot with the gold contacts facing down. Replace battery and cover.
How can I take a screenshot?
Press and hold the Power and Volume Down buttons simultaneously until the screen flashes.
How to perform a factory reset?
Go to Settings > Backup & Reset > Factory Data Reset. This will erase all data; back up your data first.
What is the battery life?
With typical usage, the 2000 mAh battery lasts up to 12 hours talk time or 300 hours standby.
How to expand storage?
Insert a microSD card (up to 64 GB) into the dedicated slot located under the back cover.
Can I update the operating system?
Go to Settings > About Phone > System Updates to check for available updates. Note that major Android version updates may not be available.
How do I connect to Wi-Fi?
Go to Settings > Wi-Fi, turn it on, select your network, and enter the password.
What to do if the phone freezes?
Press and hold the Power button for 10-15 seconds until the device restarts. If the issue persists, try a factory reset.
Can I use the phone without a SIM card?
Yes, you can use it over Wi-Fi for internet, apps, and media playback, but calls and SMS require a SIM.
How to clean the phone?
Use a soft, lint-free cloth slightly dampened with water. Avoid getting moisture in openings. Do not use abrasive cleaners.
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