Frequently asked questions

How to install / move new apps to the external memory card?
How do I find out WiFi MAC address for my tablet?
How to adjust screen brightness?
How to backup contacts, calls, SMS before resetting to factory settings (Factory Data Reset)?
How to change the system language?
How to establish reliable connection for USB debugging?
How to perform Factory Data Reset?
How to perform OTA Upgrade?
How to restore preinstalled apps back after I restored factory settings?
How to set up IP address manualy?
How to set up several keyboard languages of input?
I can't connect to WLAN. What should I do?
MultiPhone 3500 DUO How can I set a personal ringtone for a contact?
MultiPhone 3500 DUO How to activate the mobile internet?
MultiPhone 3500 DUO How to connect your phone to a PC as a modem?
MultiPhone 3500 DUO How to set a ringtone for a specific SIM slot?
MultiPhone 3500 DUO How to set a ringtone for the alarm clock?
MultiPhone 3500 DUO Melodies / Radio stationsare switched when I shake the device. How can I turn it OFF?
MultiPhone 3500 DUO What is the SAR value of this model?
MultiPhone 3540 DUO How do I obtain an instruction manual in English for this product?