Why can't I access the internet (via 2G/3G/4G/5G)?
SIM card cannot be recognized by the phone
Why can I not use data network?
Unable to make a call
Why is my (2G/3G/4G/5G) internet/download speed slow?
What should I do if my phone signal is weak?
Phone cannot connect to Wi-Fi
Why can't an app access the internet (via 2G/3G/4G/5G)?
Why can't I use the mobile network during calls?
Why does my phone lag while playing a game using the mobile network?
Why can't my phone detect a Wi-Fi network?
Can hidden app access internet?
What should I do if a Wi-Fi network is automatically disconnected?
Why can't my phone connect to a PC?
Echoes during a call
Why can others not hear my voice during calling?
Noise occurs during video/Internet calls
What should I do if I can't hear the other party during a call?
What should I do if the voice is low/no sound/noise/intermittent during a call?