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• Contact your network operator to check service availability and MMS parameters.
• Verify the server center number or your MMS profile with your operator.
• The server center may be swamped. Try again later.
SIM card PIN locked
• Contact your network operator to obtain the PUK (Personal Unblocking Key) code.
I can't connect my phone to my computer
• Check that your USB driver is installed properly.
• Check that you have marked the USB debugging checkbox.
• Make sure that you’re using the right cable from the box.
I can't download new files
• Make sure that there is sufficient phone storage space for your download.
• Select the microSD card as the location to store downloaded files.
• Check your subscription status with your operator.
The phone can't be detected by others via Bluetooth
• Make sure that Bluetooth is turned on and your phone is visible to other users.
• Make sure that the two phones are within Bluetooth’s detection range.
The battery drains too fast
• Make sure that you follow the complete charge time with default charger (minimum 144 minutes).
• After a partial charge, the battery level indicator may not be exact. Wait for at least 20 minutes after removing the
charger to obtain an exact indication.
• Adjust the brightness of the screen as appropriate.
• Extend the email auto-check interval for as long as possible.
• Update news and weather information on manual demand, or increase their auto-check interval.
• Exit background-running applications if they are not being used for extended periods of time.
• Deactivate Bluetooth, Wi-Fi, or GPS when not in use.
The phone becomes warm following prolonged calls, game playing, internet surfing, or running other
complex applications
• This heating is a normal consequence of the CPU handling excessive data. Ending the above actions will make
your phone return to normal temperature.
After Factory reset is performed, I can't use my phone without entering Google Account credentials
• After reset is performed, you must enter the original Google Account credentials that were used on this phone.
• If you don’t remember your Google Account credentials, complete Google Account recovery procedures.
• If you still cannot access your phone, apply to the authorized repair center, but remember that it will not be
regarded as warranty case.
The phone doesn't ring when a call or message arrives
• Make sure that Do Not Disturb mode (go to Settings > Sound > Do Not Disturb) is not activated.
• Press the Volume up/down key to adjust volume.
I forget some passwords/codes/keys on phone
• Perform Factory reset.
• If you still cannot access your phone, apply to the authorized repair center, but remember that it will not be
regarded as warranty case.