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TCL Industries Holdings Co., Ltd. (the “Company”) has recently been made aware of certain scams fraudulently using the name of the Company and its subsidiaries or associated companies, and fraudsters faking identities as the staff of the Company or the authorized distributors to carry out the following fraudulent activities: Learn More

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TCL onetouch 4021 | Stylish Phone with Reliability
: TCL onetouch 4021

TCL onetouch 4021

Stylish Phone with Reliability

FAQ

Filters

How can I insert or remove the SIM card correctly?

# Basic Settings

How can I adjust the volume when I am listening to music / playing a video / listening to radio / making a phone call?

# Ringtone & Sounds

Why does my phone show ‘No Service’, ‘Emergency call’ or ‘couldn’t register’?

# Troubleshooting

Why is my phone always showing low power?

# Troubleshooting

Why does my mobile phone turn off automatically?

# Troubleshooting

Why couldn’t my mobile be switched on?

# Troubleshooting

How can I transfer data between phone and PC?

# Troubleshooting

Why is there no battery charging icon indicated on my phone when I plug it to the charger?

# Troubleshooting

How can I make my phone battery last longer?

# Battery

Why couldn’t my phone take photos or make videos?

# Camera

How can I transfer files by Bluetooth?

# Bluetooth

How can I make factory data reset on my phone?

# Back Up & Reset

How can I check the IMEI number of my device?

# Basic Settings

How can I change my phone ringtone, remove power on/off beep?

# Ringtone & Sounds

Why doesn’t my alarm work?

# Ringtone & Sounds

Why do I receive text message sending/ receiving error?

# Message

How can I input symbol and change the input method?

# Message

How can I block a contact?

# Phone & Contact

How can I copy all SIM card directories to phone contacts?

# Phone & Contact

How can I set up speed dial?

# Phone Calls

Why couldn’t I make outgoing call and receive incoming call?

# Phone Calls

How can I forward incoming call to another phone?

# Phone Calls

How can I change font size on display?

# Basic Settings