ZenFone 3S Max - Smartphone ASUS - Free user manual and instructions
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| Product Type | Smartphone |
| Brand | Asus |
| Model | ZenFone 3S Max |
| Display Size | 5.5 inches, IPS LCD |
| Resolution | 1280 x 720 pixels (HD) |
| Processor | MediaTek MT6750, Octa-core |
| RAM | 3 GB |
| Internal Storage | 32 GB (expandable via microSD) |
| Main Camera | 13 MP, f/2.0, PDAF |
| Front Camera | 5 MP, f/2.4 |
| Battery Capacity | 5000 mAh, non-removable |
| Operating System | Android 7.0 Nougat, ZenUI |
| Dimensions | 149.5 x 73.7 x 8.85 mm |
| Weight | 175 g |
| SIM Card | Dual SIM (Micro-SIM, dual standby) |
| Connectivity | Wi-Fi 802.11 b/g/n, Bluetooth 4.0, GPS, microUSB 2.0 |
| Power Input | 5V / 2A via microUSB |
| Maintenance | Clean with soft, dry cloth; avoid liquids and abrasives |
| Safety Instructions | Use only certified chargers and cables; do not expose to extreme temperatures |
| Spare Parts and Repairability | Battery and screen serviceable by authorized service centers; check local regulations |
| General Information | Supports 4G LTE, fingerprint sensor, FM radio, 3.5mm headphone jack |
Frequently Asked Questions - ZenFone 3S Max ASUS
How to insert SIM and microSD card?
Use the ejector tool to open the SIM tray on the left side. The first slot accepts a Micro-SIM, the second slot accepts a Micro-SIM or a microSD card. Ensure the gold contacts face down.
How to take a screenshot?
Press and hold the Power button and Volume Down button simultaneously for about 2 seconds. The screenshot will be saved in the Gallery.
How to extend battery life?
Enable Power Saving mode in Settings > Battery. Reduce screen brightness, close unused apps, and disable Wi-Fi/Bluetooth when not in use. The large 5000mAh battery provides long standby time.
Does the phone support fast charging?
The ZenFone 3S Max supports standard 5V/2A charging. It does not support Qualcomm Quick Charge. However, the large battery charges fully in about 3 hours.
How to update the software?
Go to Settings > About > System Update. Tap Check Update. If an update is available, download and install over Wi-Fi. Ensure battery is above 50%.
Can I use the phone as a power bank?
Yes, the ZenFone 3S Max supports reverse charging. Connect another device via an OTG cable to the microUSB port, then enable 'Power Bank' mode in Settings > Battery.
How to reset the phone to factory settings?
Backup your data first. Go to Settings > Backup & Reset > Factory Data Reset. Confirm by tapping Reset Phone. The phone will reboot and erase all user data.
Is the battery removable?
No, the battery is non-removable. For replacement, contact an authorized service center. Do not attempt to open the device yourself.
How to clean the device?
Power off the device and remove any cables. Wipe gently with a soft, lint-free cloth slightly dampened with water. Avoid getting moisture in openings. Do not use harsh chemicals.
What are the camera features?
The 13MP rear camera features PDAF for fast autofocus, HDR mode, and Manual mode. The 5MP front camera has a wide-angle lens and Beauty mode.
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