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I can't send and receive MMS
ŎCheck your phone storage as it might be full.
ŎContact your network carrier to check service availability and MMS
parameters.
ŎVerify the server center number or your MMS profile with your
carrier.
ŎThe server center may be swamped. Try again later.
ŎStart a new Messaging string. You messaging string may have
reached its limit.
SIM card PIN locked
ŎContact your network carrier to obtain the PUK (Personal Unblocking
Key) code.
I can't connect my phone to my computer
ŎInstall Smart Suite.
ŎCheck that your USB driver is installed properly.
ŎOpen the Notification panel to check if the Smart Suite Agent has
been activated.
ŎCheck that you have marked the USB debugging checkbox.
ŎCheck that your computer meets the requirements for Smart Suite
installation.
ŎMake sure that you’re using the right cable from the box.
I can't download new files
ŎMake sure that there is sufficient phone storage space for your
download.
ŎSelect the microSD card as the location to store downloaded files.
ŎCheck your subscription status with your carrier.
The phone can't be detected by others via Bluetooth
ŎMake sure that Bluetooth is turned on and your phone is visible to
other users.
ŎMake sure that the two phones are within Bluetooth’s detection
range.
The battery drains too fast
ŎMake sure that you follow the complete charge time (minimum 200
minutes).
ŎAfter a partial charge, the battery level indicator may not be exact.
ŎWait for at least 10 minutes after removing the charger to obtain an
exact indication.
ŎAdjust the brightness of screen as appropriate.
ŎExtend the email auto-check interval for as long as possible.
ŎUpdate news and weather information on manual demand, or
increase their auto-check interval.
ŎExit background-running applications if they are not being used for
extended periods of time.
ŎDeactivate 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
ŎThis 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 data reset is performed, I can't use my phone without
entering Google account credentials
ŎAfter reset is performed, you must enter the original Google account
credentials that were used on this phone.
ŎIf you don’t remember your Google account credentials, complete
Google account recovery procedures.
ŎIf 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
ŎMake sure that Do Not Disturb mode (go to Settings > Sound > Do
Not Disturb) is not activated.