Manual for B25

Manual for B25

Brand: Cat

Category: Rugged Phone

Document Type:

Language: EN

Uploaded: Aug. 10, 2025, 12:09 a.m.

Warranty Information

The manual provides a NO WARRANTY statement regarding the accuracy or reliability of its content.

Getting Started

  • Battery: Insert and charge the battery. It performs best after three full charge/discharge cycles.
  • SIM Card: Insert a valid SIM card. Do not touch the metal surface.
  • Memory Card: Insert memory card into the micro USB card slot.
  • Power On/Off: Press and hold the End key.
  • Network Connection: The phone automatically searches for the network after the SIM card is unlocked.

Basic Features

  • Making Calls: Press Call key to make a call. Dial number by keys or from call history.
  • Emergency Call: Available as long as network service is available.
  • Answering Calls: Press Call key or Answer key.

Multimedia

  • Camera: Access camera function to take photos.
  • Video Recorder: Record videos.
  • Video Player: Play video files.
  • Photo Editor: Edit photos with various options.
  • Audio Player: Play music files.
  • FM Radio: Listen to FM broadcasts.

Phone Book

  • Add Contact: Save contact information.
  • Quick Search: View and manage contacts.

Call Center

  • Call History: View missed, dialed, and received calls.
  • Call Settings: Configure caller ID, call waiting, call divert, and call barring.

Organizer

  • Calendar: Schedule tasks and view dates.
  • Alarm: Set alarms with various alert types.

Messages

  • SMS: Write, send, and manage text messages.
  • MMS: Send and receive multimedia messages.

Troubleshooting and error codes

Common Troubles Causes and Resolutions
Cannot power on Check if the pressing on the Startup Key for at least more than 1 second;
Check if the battery contact, please take out the battery and then re-insert and try to restart;
Check if the battery has charge, if not, please charge
Cannot connect to network Signal strength is too weak, try another location with better coverage;
The cell phone is out of the network coverage of network service provider;
SIM card is invalid, please contact your network supplier;
It display message upon startup Check if SIM card is installed correctly;
If auto lock function is enabled, please input the phone password before use;
If SIM lock function is enabled for every startup, you must input PIN code;
Input PUK code: The phone will be locked if you incorrectly enter PIN code three times, you have to enter PUK code provided by your network operator;
Poor quality of calls Please check if the volume is adjusted properly;
When this phone is used in the areas with poor signal, e.g. near the high buildings or in basements, the call quality will be affected;
When this cell phone is used in calling intensity period, like the rush hours, calling failure is caused by network congestion;
Standby time is reduced Standby time is related to the system setting of network, maybe the phone is used in an area with poor signal. Where there is poor signal, the phone will constantly search for base station signal and battery will run down, so the standby time is reduced.
Try replacing battery if occurring in good signal area.
SIM card error Check SIM card contacts - please use a clean cloth to wipe the metal contact point of SIM card;
Check SIM card is properly installed;
SIM card is damaged, please contact with your network service provider.
Calls cannot be dialed Make sure the Send key is pressed after dialing number
Make sure call credit is sufficient;
Please make sure if SIM card is valid;
Please make sure call barring function is enabled;
Make sure fixed dialing function is not restricting calls;
The caller cannot contact you Please check the phone is powered on and connected to a network;
Make sure call credit is sufficient;
Please make sure if SIM card is valid;
Please make sure call barring function is enabled;
Make sure fixed dialing function is not restricting calls;
Battery will not charge Poor contact, please check the plug connection;
Ensure environmental conditions within temperature range -10 to 55°C
Battery or charger may be damaged, please replace it;
Some functions cannot be set Wrong operation;
The network provider does not support this function or you have not activated this function.
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