Maestro 3 - Mobile Phone AT&T - Free user manual and instructions
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| Product Type | Smartphone |
| Model | AT&T Maestro 3 |
| Display | 5.0 inches, IPS LCD, 480x854 pixels |
| Processor | Quad-core 1.3 GHz Cortex-A53 |
| RAM | 1 GB |
| Internal Storage | 8 GB (expandable via microSD up to 32 GB) |
| Operating System | Android 8.1 (Oreo Go Edition) |
| Rear Camera | 5 MP with flash |
| Front Camera | 2 MP |
| Battery | 2500 mAh, non-removable |
| Weight | 142 g |
| Dimensions | 144.8 x 71.9 x 9.2 mm |
| Connectivity | Wi-Fi 802.11 b/g/n, Bluetooth 4.0, microUSB 2.0, 3.5mm headphone jack |
| SIM | Micro-SIM (Nano-SIM compatible) |
| Sensors | Accelerometer, proximity |
| Colors | Black |
| Cleaning | Use a soft, dry cloth. Avoid liquids and abrasives. |
| Safety | Keep away from water and extreme temperatures. |
| Spare Parts | Battery and screen available from authorized service centers. |
| Repairability | Serviceable by trained technicians only. |
| FCC ID | 2ATTDMAESTRO3 (example) |
Frequently Asked Questions - Maestro 3 AT&T
How do I factory reset the AT&T Maestro 3?
Go to Settings > Backup & reset > Factory data reset. Alternatively, power off then press and hold Volume Up + Power to enter recovery mode, then select 'Wipe data/factory reset'.
How do I insert the SIM card?
Use the included SIM ejector tool (or a paperclip) to open the SIM tray on the left side. Place the Micro-SIM or Nano-SIM in the tray and insert it back.
Why is my phone charging slowly?
Use the original charger (5W or 10W). Try a different USB cable or outlet. Close background apps and avoid using the phone while charging.
How can I extend battery life?
Reduce screen brightness, disable Bluetooth and Wi-Fi when not in use, turn on Battery Saver in Settings, and close unused apps.
What should I do if the screen freezes?
Press and hold the Power button for 10-15 seconds to force restart. If the issue persists, try a factory reset after backing up your data.
How do I update the software?
Go to Settings > System > System updates. If an update is available, download and install it over a Wi-Fi connection.
Can I use two SIM cards?
The AT&T Maestro 3 supports a single SIM card. Dual SIM is not available.
How do I take a screenshot?
Press and hold the Power button and Volume Down button simultaneously until the screen flashes.
Does the phone have a removable battery?
No, the battery is non-removable. Replacement should be done by an authorized service center.
What is the maximum microSD card capacity?
The phone supports microSD cards up to 32 GB.
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USER MANUAL Maestro 3 AT&T
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Product information
Brand : AT&T
Model : Maestro 3
Category : Mobile Phone