Find quick tips, suggestions and support on how to use your Cat phone to its full potential.

B100 FAQs

Browse the FAQs below to find quick answers to your questions and if you don't find the answer, please tell us.

What should I attempt if the device will not power on?

When the battery has taken a deep discharge and charge level is very low, the phone may not turn on in the normal manner.
The device should be allowed to charge for approx. 30 minutes and then the “power on” can be re-attempted.

How do I perform a Factory reset?

Note: Before performing this activity ensure you have backed up and secured your data.
1. Go to the settings menu
2. Scroll down this screen and select “Restore Factory settings”.
3. Request to input the Phone password will appear, default code “1122”.
4. Question ‘Restore settings and restart the phone will appear’ select YES.

After a recent call on a following call I could not hear anything through the headset or speaker.

1. Check that by accident during the preceding call you have not pressed the mute button on the keyboard.
2. Press the volume up button to ensure the volume is at an adequate level.

How do I resolve when Poor Sound Quality is experienced, after being immersed in water?

1.  If the handset has been subject to immersion in water then the microphone and speaker will need to dry out to resume normal functionality.

How do I find my IMEI Number?

1. This can be found on the outside of the box that you received your phone in, and makes up part of the Approval’s label.
2. The IMEI is also printed on the label inside the battery bay.
3. If not available, Type into the device via the keyboard*#06# a pop up box will show the device IMEI.

How do I check the SW version of the phone?

To check in Factory mode:
1. Type into the device via the keyboard *#66*#.
2. Device will enter factory mode.
3. Select “Show IMEI, BT, SW version” select OK.
The information of SW build and build time will be displayed.

How do I turn On/Off predictive text?

1. Go to the menu and select messages
2. Select “Write messages” and then options
3. Scroll down and select “Input method”
4. To enable predictive text, select “Smart” option, to disable select an alternative

How do I enable/disable Bluetooth and connect to another Bluetooth device?

On the device:
1. Go to settings menu, scroll down to connectivity option and select
2. Select “Bluetooth” power on Bluetooth
3. Select “My Device” and “search for new device”, to search for BT device locally
4. Select the device you wish to pair with from the list and press select
5. Check the passcode and input to accept pairing, select whether you wish to connect automatically to the device in future

How can I transfer data to another device via Bluetooth (for example an image)?

1. Go to Multimedia menu and select image viewer.
2. Select the image that you wish to transfer.
3. Press options and scroll down to “Send”.
4. Select via Bluetooth and then select the device you wish to send the image to, receiving device will get the request to Accept/Reject.

How do I copy contacts from the SIM card to the Device?

1. Go to the “Phonebook” menu
2. Scroll down to “Move Contacts” and select, this will give the options – “SIM to phone” or “Phone to SIM”

How can I back up data to an external storage device?

On your Cat B100:
1. Go to File Manager Menu
2. Ensure the device has a viable and formatted SD card installed
3. In the File Manager screen, Select “Phone” option, in this example select a folder containing an image, and open the folder
4. Identify the image you wish to backup, at the bottom of the screen select options scroll down and select “Move”
5. This will return you to the screen with the options “Phone” and “Memory card” select Memory card.
6. Scroll down to the Folder you wish to back up the image into, Select and then press options scroll down to select and press. Message will appear on screen with a green tick “Moved”

What does the Message please Insert SIM card indicate?

1. Make sure that you have correctly inserted the SIM card – The SIM card port cover has an illustration of the required SIM card orientation
IMPORTANT NOTE – If using a Micro SIM use a SIM adaptor to ensure the correct location. Never insert the SIM adaptor without the SIM card, as the connectors will be damaged
2. If correctly fitted and the message is still displayed, please clean the contacts of the SIM card using a dry cloth
3. If still not being recognised please call your Network provider to ensure the SIM card has been enabled or to check if they have any further instructions

Why do Calls to this device get picked up by other devices?

1. Go to the Call centre menu and select “Call settings”
2. Select Call divert, select call forwarding
3. Check if the “Divert all voice calls” option is enabled, if this is the case disable. In this screen there are three further options
“Divert if unreachable”, “Divert if no answer” and “Divert if busy”. In addition is the option to cancel all diverts
4. Enable/Disable the functionality you desire

How is Caller ID enabled/disabled on this device?

1. Go to the Call centre menu and select Caller ID
2. There will be three options, “Set by Network” select this if you are aware of what the default of the Network is and if that is what you require
3. “Hide ID”, check this is not set as this will prevent the caller ID being displayed at the receiving device
4. “Send ID”, select this to ensure Caller ID is displayed at the receiving device

What should I do if the device displays message “No Service”?

1. This may be displayed if you are in an area that is not covered by your Network provider, or if you are in an area of poor reception for example an enclosed area
2. No service will be displayed on your screen until the situation is resolved by relocating to an area of service
3. If this problem persists when in a known good service location, contact your Network provider to ensure there are no restrictions on service or your SIM services

What do I do if “Emergency Call only” is displayed on your Home screen?

1. This will be displayed if there are issues with the SIM card
2. Additionally if you are in an area not covered by your Network Provider but covered by another Network provider

What do I need to do if “Enter PUK code” is displayed?

1. Following three consecutive failures to input the correct SIM card PIN code, the PIN code will be blocked and the request for the PUK code will be displayed
2. Before attempting to input the PUK code ensure that you have the correct code provided by Network provider
3. After ten unsuccessful attempts to input the PUK code, the SIM card will be permanently disabled
4. Once the SIM card is permanently disabled you will need to contact relevant body to purchase a New SIM card

What should I do when experiencing Reception Issues?

1. Poor quality of calls: Please check if the volume of the device is adjusted to an acceptable comfortable level
2. When the device is used in the areas with poor signal, e.g. near the high buildings or in basements, the call quality may be affected adversely
3. When this device is used in a high call intensity period, like rush hour, call failure may be caused by network congestion
4. Standby time is reduced, Standby time is related to the system setting of network, it may be that the phone is used in an area with poor signal
Where there is poor signal, the phone will constantly attempt to communicate by searching for base station signal and battery lose charge quicker, hence the standby time is reduced

How do I resolve when Poor Sound Quality is experienced?

There are a number of contributing factors which can affect the audio performance of your device for example:
1. If the handset has been subject to immersion in water then the microphone and speaker will need to dry out for them to resume to normal functionality.
2. If the incoming call has been routed long distance and is being routed through a number of service providers telecoms infrastructure.
3. Technical performance between handset manufacturers, this can be software or hardware related.
4. The environment the handset is used in, especially where there is background noise, typically traffic in a busy city environment or large shopping malls and airports.

All handset manufacturers must design equipment to work within very rigorous standards set by organisations like the European Union.
These are normally safety based so that you do not suffer from hearing problems with extended use.
All Cat products meet these safety standards and hence are CE marked as an assurance that we comply to these standards and our audio levels are within safe limits.

View all technical specs


Removable Lithium Ion
Talk Time*
10 hours
Standby Time*
23 days


Display Type
2.2″ QVGA TFT, 240×320
Display Cover


3MP, fixed focus, 4x digital zoom
Video Capture
Yes, QVGA 30fps


Audio Jack
micro-USB 2.0
Sim Type
Mini sim

Data Speed

Maximum Downlink Data Rate
384 Kbps
Maximum Uplink Data Rate
384 Kbps


ROM Flash
128 MB
64 MB
Extended Storage
microSD™ up to 32 GB


Audio Playback
Audio Recording
Video Playback
3GP, MP4
Video Recording


2G Frequencies
850/900/1800/1900 MHz
WCDMA/UMTS/Data 3G voice
3G Frequencies
900/2100 MHz
4G Bands (LTE)


Processor Type
Media Tek MT6276W
MTK NUCLEUS (version 2.1)


IP Rating
IP67 Certified
Up to 1m for 30 mins
Dust Proof
Impervious to dust
Drop Test
Up to 1.8M (6 ft)
Military Standard
MIL-SPEC 810G, Shock and Drop, Operating Temp: -25°C (-13°F) to 55°C (131°F), Category 4 vibration


Proximity Sensor
Ambient Light Sensor


123.5 x 56 x 17.5mm


Contact our Customer Service team



In the unlikely event of an in-warranty fault, contact our Customer Service team who will be happy to help