This manual provides detailed instructions on the use of the phone, including the use of batteries, SIM cards, headphones, and call functions, input methods, function tables, phone books, short messages, multimedia, network services, additional functions, and settings.
This manual introduces the GK-858 series mobile phone, covering safety precautions, hardware overview, and key specifications such as GSM/GPRS support and SAR limits. It also includes warranty terms and service center contacts.
Detailed usage instructions are provided for battery handling, SIM and memory card installation, making and receiving calls, input methods, menu navigation, multimedia functions, and additional utilities like calculator and health management. Appendices contain common fault diagnostics and warranty details. This manual is written in Chinese.
| Network technology | GSM / GPRS |
|---|---|
| SAR limit | 2.0 W/kg |
| Handset warranty period | 12 months from purchase |
| Battery warranty period | 3 months from purchase |
Insert the SIM card into the slot as described in the SIM卡的安裝 section.
The phone complies with a SAR limit of 2.0 W/kg.
The handset is covered for 12 months from the date of purchase.
No – you must turn the phone off or switch to flight mode before using it on an aircraft.