Bolt AD3520 - Smartphone Micromax - Free user manual and instructions
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| Product Type | Smartphone |
| Brand | Micromax |
| Model | Bolt AD3520 |
| Dimensions | 115 x 62 x 10 mm |
| Weight | 120 g |
| Battery Type | Li-Ion 1500 mAh (removable) |
| Display Size | 3.5 inches |
| Display Resolution | 320 x 480 pixels |
| Operating System | Android 4.4 KitKat |
| Processor | 1.0 GHz Cortex-A7 |
| RAM | 512 MB |
| Internal Storage | 4 GB |
| Expandable Storage | microSD up to 32 GB |
| Rear Camera | 2 MP |
| Front Camera | 0.3 MP (VGA) |
| Connectivity | 3G, Wi-Fi 802.11 b/g/n, Bluetooth 4.0, GPS |
| SIM Slot | Dual SIM (GSM + GSM) |
| Headphone Jack | 3.5 mm |
| USB Port | microUSB 2.0 |
| Sensors | Accelerometer, proximity |
Frequently Asked Questions - Bolt AD3520 Micromax
How to insert SIM and memory card?
Remove the back cover and battery. Insert SIM cards in the labeled slots (micro-SIM). For memory card, slide into the microSD slot with gold contacts facing down.
How to extend battery life?
Reduce screen brightness, turn off Wi-Fi and Bluetooth when not in use, close unused apps, disable GPS, and use Battery Saver mode in Settings.
Can I install apps on SD card?
Yes, go to Settings > Storage > Default storage > SD card. Some apps may still require internal memory. Ensure the card is class 4 or higher.
How to reset the phone to factory settings?
Go to Settings > Backup & reset > Factory data reset. Confirm. Alternatively, turn off phone, press and hold Volume Up + Power buttons until recovery menu appears, then select 'wipe data/factory reset'.
Why is the touch screen not responding?
Remove screen protector if applied. Restart the phone. If issue persists, try a factory reset. If still not working, touch may be damaged; contact service center.
How to update the Android version?
Go to Settings > About phone > System updates. The Bolt AD3520 runs Android 4.4; official updates may not be available. Consider custom ROMs (advanced).
Does the phone support 4G LTE?
No, it supports up to 3G (HSDPA 7.2 Mbps). For 4G, consider newer models.
How to save contacts to SIM?
Open Contacts > Menu > Import/Export > Export to SIM card. Select contacts to copy. You can also move from SIM to phone with Import from SIM.
Why is the battery draining quickly?
Check for power-hungry apps in Settings > Battery. Disable background data for apps not needed. Lower display brightness and timeout. Battery may need replacement if old.
How to take a screenshot?
Press and hold the Power button and Volume Down button simultaneously until the screen flashes. The screenshot is saved in Gallery.
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