Usage: Waterpik TCL T626K Smartphone User Manual

Overview

The TCL T626K Smartphone is an Android phone designed for everyday communication, reading, entertainment, photography, and mobile productivity. Its 6.78-inch NXTPAPER display reduces glare and reflections while offering dedicated paper-like viewing modes for more comfortable reading.

This device is particularly suitable for people who spend extended periods reading articles, viewing documents, browsing the web, or using educational content on a phone. A physical NXTPAPER switch provides quick access to the display modes without requiring a lengthy settings search.

Specifications

• Model: TCL T626K
• Display: 6.78-inch NXTPAPER screen
• Charging input: USB Type-C connection
• Fast-charging protocol: USB Power Delivery 3.0 with PPS
• Supported charger input: 100–240 V AC, 50/60 Hz
• Charger output profiles: 5 V, 9 V, 12 V, 15 V, 20 V, 5–11 V, and 5–16 V
• Maximum listed charging output: 33 W
• Wireless connections: Bluetooth, Wi-Fi, cellular radio, and NFC
• SIM configuration: The device supports the SIM arrangement shown on its tray; follow the tray markings for SIM and microSD placement.

Detailed Description

The main feature of the TCL T626K Smartphone is its NXTPAPER display surface. Unlike a conventional glossy phone screen, the display diffuses reflected light to create a matte, paper-like appearance. This can make text and images easier to view in many bright environments and helps reduce distracting reflections.

A dedicated NXTPAPER switch controls the display experience. Sliding the switch enables or disables NXTPAPER mode. When the mode is active, the phone provides multiple viewing choices designed for different reading preferences.

• Ink Paper Mode: Presents black content on a white, paper-like background for an e-reader-style experience.
• Colour Paper Mode: Uses softer colours and lower saturation to create a gentler paper-inspired appearance.
• Max Ink Mode: Closes currently open applications and provides a focused, low-power reading environment inside the dedicated library.

The display has a tactile matte surface that helps resist visible smudges and fingerprints. It is not designed to accept a tempered-glass protector, and its surface can be more vulnerable to scratches than a typical glossy smartphone screen. Keep the phone away from keys, coins, grit, and other objects that could mark the display.

In strong direct sunlight, the matte diffusion effect can narrow the practical viewing angle. If the image appears less clear, tilt or reposition the phone rather than assuming the display is damaged.

Safety

General use

• Do not operate the phone while driving unless the vehicle is safely parked and local law permits use.
• Follow restrictions in hospitals, aircraft, schools, fuel stations, chemical facilities, and other controlled locations.
• Turn the phone off before boarding an aircraft and in healthcare areas unless use is specifically permitted.
• Switch off the device in blasting areas or wherever signs request that radios and electronic devices be disabled.
• Keep the phone at least 15 cm from medical devices such as pacemakers, hearing aids, and insulin pumps. Consult a doctor and the medical-device manufacturer if interference is a concern.
• Children should use the phone and its accessories only with appropriate supervision.
• Do not use a phone that has a cracked display, badly dented back cover, or other serious physical damage.

Environment and heat

• Keep the device away from moisture, rain, dust, sea air, liquid intrusion, and severe environmental conditions.
• The recommended operating temperature is 0°C to 40°C.
• At temperatures above 40°C, the display may temporarily become harder to read.
• Do not sleep with the phone on your body or place it under a pillow, blanket, or your body, especially while it is charging.
• Disconnect the charger after the battery is full instead of leaving the phone connected for extended periods.

Hearing and radio exposure

• Listening at high volume for long periods can damage hearing. Keep the volume at a comfortable level.
• Use caution when holding the phone near your ear while the loudspeaker is active.
• For lower radio-wave exposure, use the phone where signal reception is good, use hands-free accessories when practical, and limit unnecessary call duration.
• When carrying the device against the body, use an approved holder or maintain approximately 5 mm of separation.

Setup and Operation

Insert the SIM and memory card

Locate the card tray and use the markings on the tray to identify the correct positions. Depending on the tray configuration, the marked slots may support one or two SIM cards and a microSD card. Place each card in its matching outline, with the contacts positioned as indicated by the tray, and insert the tray completely before switching on the phone.

Charge the phone

1. Connect a USB Type-C cable to the phone's charging port.
2. Connect the other end to a compatible power adapter.
3. Plug the adapter into a suitable mains outlet.
4. Allow the battery to charge before initial use, because the battery is not shipped fully charged.

For the fastest supported charging experience, use a charger compatible with USB PD 3.0 PPS and capable of the required output. An incompatible adapter may still charge the device, but charging can take longer. Use only chargers that meet applicable information-technology and office-equipment safety requirements.

Use NXTPAPER mode

1. Slide the NXTPAPER switch to enable or disable the feature.
2. When NXTPAPER mode is enabled, select the viewing mode that matches the task.
3. Use Ink Paper Mode for primarily text-based reading.
4. Use Colour Paper Mode when you want a softer colour presentation.
5. Use Max Ink Mode for a focused reading session with currently open apps closed.

Charging and Battery Care

The listed charger specifications include a 100–240 V input range and 50/60 Hz AC frequency. Supported output profiles range from 5 V to 20 V, with programmable PPS ranges of 5–11 V and 5–16 V. The highest listed output is 33 W, while the stated no-load power consumption is 0.1 W.

• Use a charger and cable that are compatible with the TCL T626K Smartphone.
• Do not puncture, disassemble, short-circuit, burn, or attempt to replace the battery.
• Do not open a unibody back cover or attempt to remove a non-removable battery.
• Never use a damaged battery.
• Do not store the phone or battery above 60°C or expose it to extremely low air pressure.
• Do not dispose of the battery in household rubbish.

Radio and Wireless Compliance

The device supports cellular, Bluetooth, Wi-Fi, and NFC radio functions. Its listed cellular bands include GSM 900 and 1800 MHz, UMTS bands 1 and 8, LTE FDD bands 1, 3, 7, 8, 20, and 28, and LTE TDD bands 38 and 40.

Wireless specifications include Bluetooth and Bluetooth Low Energy in the 2.4 GHz range, Wi-Fi on 2.4 GHz and 5 GHz bands, and NFC at 13.56 MHz. Wi-Fi 5 GHz use is subject to regional restrictions. In particular, some channels are limited to indoor use, and certain bands cannot be used in road vehicles, trains, aircraft, or unmanned aircraft in specified countries.

The documented maximum SAR values are 1.62 W/kg for head use, 1.41 W/kg for body-worn use at 5 mm, and 3.29 W/kg for limb use. Regional rules and network availability determine which radio functions can operate in a particular location.

Software Updates and Device Information

Software updates may download automatically, but installation requires user approval. Installing updates helps maintain performance and security. Delaying a security update can leave the device exposed to known vulnerabilities.

Regulatory information can be viewed through Settings > Regulatory & safety. On supported regional versions, entering *#07# can also open electronic labeling information.

Differences between the quick-start instructions and actual operation can occur after software updates or because of carrier-specific services. Menus and available functions may therefore vary by software release and region.

Cleaning and Maintenance

Protect the matte display from abrasive materials and sharp objects. Because the NXTPAPER surface is different from a standard glossy screen, do not apply tempered glass or use accessories that may damage its texture.

Keep the phone dry, avoid liquid entering openings, and store it away from excessive heat, dust, and humidity. If the device becomes damaged, stop using it and arrange an inspection rather than continuing to charge or operate it.

Troubleshooting

The phone charges slowly

Confirm that the cable and adapter support the required charging standards. A charger without USB PD 3.0 PPS compatibility may charge the phone at a lower rate. Check that the connectors are fully inserted and that the device is not exposed to excessive heat.

The display looks less clear in sunlight

Strong direct sunlight can reduce the effective viewing angle of the matte NXTPAPER surface. Change the phone's angle or move to a position where light does not strike the screen directly.

The screen has visible scratches

Do not place the phone in the same pocket or bag compartment as keys, coins, grit, or other hard objects. The display surface requires more careful handling than a conventional glossy screen, and tempered glass should not be added.

Wireless service is unavailable

Check whether the phone is in an area supported by the installed SIM and carrier. Radio-band availability differs by region, and some Wi-Fi channels are restricted according to local regulations.

The device becomes hot

Stop charging if the phone becomes unusually hot. Move it to a cool, ventilated location, remove blankets or other coverings, and avoid using damaged batteries, adapters, or cables.

Waste Disposal and Recycling

Do not place the phone, battery, or accessories in ordinary household waste where separate collection is available. Use municipal electronic-waste facilities or designated collection bins at retail locations. Proper recycling helps prevent device materials from entering the environment.

Warranty

The limited warranty exists alongside statutory consumer rights provided by the laws of the country where the device was purchased or used. Warranty remedies depend on the applicable terms and the condition of the device.

If a defect prevents normal use, promptly notify the seller and retain proof of purchase. The manufacturer's warranty terms determine which defects and remedies are covered.

Pros & Cons

Pros

• NXTPAPER technology reduces glare and reflections for a more paper-like viewing experience.
• Dedicated Ink Paper, Colour Paper, and Max Ink modes support different reading needs.
• USB PD 3.0 PPS compatibility enables fast charging with a suitable adapter.
• Wireless connectivity includes Bluetooth, Wi-Fi, cellular networks, and NFC.
• The display surface helps reduce the appearance of fingerprints and smudges.

Cons

• The matte display surface needs careful protection because it can scratch more easily than a typical glossy screen.
• Tempered-glass protection is not suitable for the NXTPAPER surface.
• Direct sunlight can reduce the effective viewing angle.
• Maximum fast-charging performance requires a compatible PD 3.0 PPS charger.
• Radio operation and Wi-Fi 5 GHz availability vary by country and local regulations.