What can I do if there are scratch-like marks on my NXTPAPER touch screen?

What should I do if my device cannot power on?

What can I do if my device heats up?

What should I do if my device auto powers off?

What should I do if my device system lags or freezes?

What should I do if there is no sound or poor audio on my device?

How can I change the default ringtone and adjust the volume for incoming calls?

How to remove Google account from your device?

What should I do if my device reboots by itself?

What should I do if my device cannot charge or charges slowly?

What should I do if my fingerprint unlock function works slowly or fails?

What should I do if my device’s battery drains under normal use?

How can I transfer data from the internal storage to the SD card?

Why can’t I connect to a specific Wi-Fi router?

Why is there no 5G signal icon on my screen?

What should I do if the Multi-screen Share connection fails?

What should I do if my device cannot send or receive messages?

What should I do if I cannot receive calls or miss calls constantly?

How can I use a SIM card to make video calls?

How can I set up my SD card?

What should I do if the NFC (Near Field Communication) function doesn’t work?

What should I do if my device network signal is weak/there is a low reception level?

What should I do if my device is always searching for a network or if no operator name is displayed?

What should I do if my device cannot connect to the internet using mobile data?

What should I do if the in-built applications of my device do not work?

How can I know whether my device will work with my SIM carrier?

What should I do if the navigation buttons disappear from my screen?

How can I use the split screen function?

What should I do if my screen has a line(s) or spot(s) on the display or incomplete display?

What should I do if my screen is just showing a completely black/blue/white display?

What should I do if I experience a slow response or incorrect action when touching the screen?

How can I use the Multi-screen Share function?

How can I connect my device to a PC or another device via a USB/OTG cable?

What should I do if the image quality of a camera capture or video capture is poor?

What should I do if I cannot turn on the camera app?

Why doesn’t my device pair with a Bluetooth enabled device?

How can I manage app notifications quickly and easily?

How can I create a video of what’s on the screen?

What to do with my used terminals?

How to back up my device data?

How can I perform a factory reset on my device?

How can I turn on USB debugging?

How can I upgrade my device?

How can I change the permissions for my apps?

How can I change font size on display?

How can I silence the ringtone of an incoming call?

How can I activate the accessibility menu?

How can I take a screenshot?

How can I change the language of the device?

How can I check the IMEI number of my device?