TECNO Spark 4 User Manual
Mobile Phone
Model：KC8
Know your phone
- Front camera
- Volume key
- Power key
SIM/SD card installation
- Power off mobile.
- Refer to the following picture for SIM / SD card installation.
Charging the phone
You can charge your device using a charger or by connecting it to the computer using a USB cable (comes with the phone).
- Please remind the front and back of the plug.
- Use only TECNO charger and cables.
Other chargers or cables may damage the device. This will invalidate your phone warranty.
Operating Frequency Band (RF):
E-GSM900: 880-915MHz (TX), 925-960MHz (RX)
DCS1800: 1710-1785MHz (TX), 1805-1880MHz (RX)
WCDMA BAND I: 1920-1980MHz (TX), 2110-2170MHz (RX)
WCDMA BAND VIII: 880-915MHz (TX), 925-960MHz (RX)
LTE Band 1: 1920-1980MHz (TX), 2110-2170MHz (RX)
LTE Band 3: 1710-1785MHz (TX), 1805-1880MHz (RX)
LTE Band 7: 2500-2570MHz (TX), 2620-2690MHz (RX)
LTE Band 8: 880-915MHz (TX), 925-960MHz (RX)
LTE Band 20: 832-862MHz (TX), 791-821MHz (RX)
LTE Band 28A: 703-733MHz (TX), 758-788MHz (RX)
Bluetooth: 2402-2480MHz (TX/RX)
WiFi(2.4G): 2412-2472MHz (TX/RX)
GPS: 1.57542GHz
FM: 87.5-108MHz
Modulation mode:
GMSK, 8PSK (GSM) BPSK, QPSK, 16-QAM (WCDMA) QPSK, 16-QAM, 64-QAM (LTE) GFSK, π/4-DQPSK, 8DPSK (BT) GFSK (BLE) CCK for IEEE 802.11b (WiFi) OFDM for IEEE 802.11 g/n (HT-20)/HT-40 (WiFi) BPSK (GPS)
RF Output Power：
GSM900: 33dBm±2dB
GSM1800: 30dBm±2dB
WCDMA BAND I/VIII: 24dBm+1dB/-3dB
LTE BAND 1/3/7/8/20/28A: 23dBm+/-2.7dB
Bluetooth: 0-10dBm
WiFi: 14dBm+/-3dB
Specific Absorption Rate (SAR) Certification
THIS DEVICE MEETS INTERNATIONAL GUIDELINES FOR EXPOSURE TO RADIO WAVES
|
Body parts |
Test value | Test distance |
Limit |
|
Head |
0.845W/Kg 10g | 0cm | 2.0 W/Kg 10g |
| Body | 0.494W/Kg 10g | 0.5cm |
2.0 W/Kg 10g |
CAUTION：
- Use careful with the earphone maybe excessive sound pressure from earphones and headphones can cause hearing loss.
- Risk of explosion if battery is replaced by an incorrect type, dispose of used batteries according to the instructions.
- The product shall only be connected to a USB interface of version USB 2.0.
- Adapter shall be installed near the equipment and shall be easily accessible.
- EUT Temperature: -10℃～+65℃.
- Adapter1: CU-52AT
Input: 100-240V 50/60Hz 200mA
Output: 5V /1.2A
Adapter2: U060TKA
Input: 100-240V 50/60Hz 300mA
Output: 5V /1.2A - The device complies with RF specifications when the device used at 5 mm from your body, and the holder must not be of metal composition.
- To prevent possible hearing damage, do not listen at high volume levels for long periods.
- Earphone and USB cable are shielded.
Documents / Resources
 | Spark 4 |
References
- User Manualmanual.tools
How do I update the whole device?
كيف احدث الجهاز كامل
كيف احدث الجهاز كامل
How do I update the whole device?
The provided manual for the TECNO Spark 4 (Model KC8) does not contain specific steps for performing a system update. However, for most TECNO Android devices, you can update the software by following these general steps:
Note: The device will restart during the installation process. Do not turn off the device while the update is in progress.
Read the full Q&A page
How do I set a big battery percentage display?
จะตั้งค่าโชวแสดงเปอร์เซ็นต์แบตเตอรี่ตัวใหญ่ๆทำไงค่ะ
จะตั้งค่าโชวแสดงเปอร์เซ็นต์แบตเตอรี่ตัวใหญ่ๆทำไงค่ะ
How do I enable a large battery percentage display on the TECNO Spark 4?
The standard user manual for the TECNO Spark 4 does not provide specific instructions for changing the size of the battery percentage display. However, on most TECNO devices running HiOS, you can enable the standard percentage display by following these steps:
If you require a "large" display specifically for accessibility, you may want to check Settings > Accessibility > Display size to increase the size of all status bar icons, or search the Google Play Store for a "Battery Widget" that allows for a large custom display on your home screen.
Read the full Q&A page
Hello tech,
How can I disconnect the proximity sensor
Bonjour techno,
Comment pourrai-je déconnecter le capteur de proximité
How can I disconnect the proximity sensor<e/em>
Bonjour techno,
Comment pourrai-je déconnecter le capteur de proximité
How can I disable or disconnect the proximity sensor on the TECNO Spark 4?
The official TECNO Spark 4 user manual does not provide instructions for disabling or disconnecting the proximity sensor, as it is a core hardware component used to turn off the screen during calls to prevent accidental touches.
If you are experiencing issues where the screen stays black during calls, please try the following troubleshooting steps:
Physically disconnecting the sensor would require opening the device, which will void your warranty and is not recommended.
Read the full Q&A page