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Start a new Messaging string. You messaging string may have reached its limit.
SIM card PIN locked
Contact your network carrier to obtain the PUK (Personal Unblocking Key) code.
I can't connect my phone to my computer
Install Smart Suite.
Check that your USB driver is installed properly.
Open the Notification panel to check if the Smart Suite Agent has been activated.
Check that you have marked the USB debugging checkbox.
Check that your computer meets the requirements for Smart Suite installation.
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 carrier.
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 (minimum 200 minutes).
After a partial charge, the battery level indicator may not be exact.
Wait for at least 10 minutes after removing the charger to obtain an exact indication.
Adjust the brightness of 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.
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After Factory data 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 key to adjust volume.
I forget some passwords/codes/keys on phone
Perform Factory data 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.
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