Q: Messages seem to be sent but do not arrive at the recipient - what to do?

The Hammer BOW LTE confirms sending via the menu [Menu] > [Messages] > [Options] > [Send to] , but this confirmation does not guarantee delivery. If your messages are not received, the problem usually comes from the network or your operator, not the phone. Checks to perform: Recipient's number - Make sure the number is correct and complete (with the country code if international) Network signal - Check that you have good reception (look at the signal symbol at the top of the screen) Subscription plan - Check with your operator that you have SMS included in your plan Recipient - Ensure that the recipient's phone is on and connected to the network Inbox capacity - If the recipient's inbox is full, the SMS may not be delivered If the problem persists after these checks, contact your operator directly to verify the delivery status in their systems.

Q: How to reset or unlock the lock pattern on the Hammer Rock phone?

The Hammer Rock is a rugged phone with a simple keyboard lock system, different from an Android smartphone. This lock prevents accidental calls when carrying the phone. To unlock the keyboard: Press the [Unlock] button, then enter the unlock code (usually <*> ). The keyboard will then be accessible to dial numbers and use the phone's functions. If you have forgotten the unlock code: You will need to perform a factory reset to restore access to your phone. To do this, access the phone menu by pressing [Menu] , then navigate to [Settings] > [Phone Settings] > [Factory Settings] . Confirm the reset. Important: This operation will delete all your contacts, messages, and personal data stored in the internal memory of the Hammer Rock. Your data on the SIM card generally remains intact, but we recommend backing up your important contacts before proceeding. After the factory reset, the phone will restart with default settings and the keyboard will be unlocked. If you are prompted to enter a PIN code upon restart, this is the code protecting your SIM card, not the keyboard lock code. Enter this code and press <OK> to confirm.

Question 1

Messages seem to be sent but do not arrive at the recipient - what to do?

Accepted Answer

The Hammer BOW LTE confirms sending via the menu [Menu] > [Messages] > [Options] > [Send to], but this confirmation does not guarantee delivery. If your messages are not received, the problem usually comes from the network or your operator, not the phone.

Checks to perform:

Recipient's number - Make sure the number is correct and complete (with the country code if international)
Network signal - Check that you have good reception (look at the signal symbol at the top of the screen)
Subscription plan - Check with your operator that you have SMS included in your plan
Recipient - Ensure that the recipient's phone is on and connected to the network
Inbox capacity - If the recipient's inbox is full, the SMS may not be delivered

If the problem persists after these checks, contact your operator directly to verify the delivery status in their systems.

Question 2

Why can't I send SMS with the Hammer BOW LTE?

Accepted Answer

Preliminary checks

The Hammer BOW LTE is equipped with SMS functionality and should be able to send messages. If you are experiencing this issue, first check the following points:

SIM card properly inserted - Ensure that your SIM is properly seated in the SIM slot. The phone supports both SIMs simultaneously.
Network signal present - Make sure you have at least one bar of GSM/4G signal (800, 1800, 2100 or 2600 MHz).
Active credit or SMS plan - Lack of credit or an SMS plan will block message sending.
Airplane mode disabled - Check that airplane mode is not activated (it would disable all network functions).

To send an SMS

On the BOW LTE, go to the Messages or SMS menu, select New message, enter the recipient's number, and write your message before pressing Send.

If the problem persists despite these checks, try restarting the phone or contact your telecom operator to ensure that SMS is activated on your subscription.

Question 3

How to add custom ringtones on a Hammer Boost LTE phone?

Accepted Answer

To add custom ringtones to your Hammer Boost LTE phone (model HF2403), it is recommended to install a microSD card in the device, as the internal memory is limited to 200 text messages and does not have enough space for audio files. The phone supports microSD cards up to 64 GB.

Preparing the ringtone: Ensure that your audio file is in a compatible MP3 or WAV format. You can download ringtones from specialized websites or convert your own audio files using an online converter. It is best to use small-sized files (less than 2 MB) to optimize your phone's performance.

Transferring the ringtone: Connect your Hammer Boost LTE to your computer using a USB cable. Once recognized, navigate through the phone's directory and locate the Ringtones folder on the microSD card. If this folder does not exist, create it manually. Copy your audio file into this folder, then safely eject the phone.

Setting the new ringtone: On your phone, press the [Menu] key, then select Settings. Go to the Profiles section. Select the profile you want to modify and press [Options] > [Settings] to edit the profile according to your preferences. Locate the Ringtone option, where you should see your new ringtone added to the list. Select it and press [Finish] to save the changes.

If your custom ringtone does not appear in the list after transfer, first check that the file is correctly placed in the Ringtones folder on your microSD card and that it is in MP3 or WAV format. Then restart your Boost LTE phone to refresh the list of available ringtones. The external speaker of the phone is used for all system sounds, ringtones, and music.

Question 4

How to reset or unlock the lock pattern on the Hammer Rock phone?

Accepted Answer

The Hammer Rock is a rugged phone with a simple keyboard lock system, different from an Android smartphone. This lock prevents accidental calls when carrying the phone.

To unlock the keyboard: Press the [Unlock] button, then enter the unlock code (usually <*>). The keyboard will then be accessible to dial numbers and use the phone's functions.

If you have forgotten the unlock code: You will need to perform a factory reset to restore access to your phone. To do this, access the phone menu by pressing [Menu], then navigate to [Settings] > [Phone Settings] > [Factory Settings]. Confirm the reset.

Important: This operation will delete all your contacts, messages, and personal data stored in the internal memory of the Hammer Rock. Your data on the SIM card generally remains intact, but we recommend backing up your important contacts before proceeding.

After the factory reset, the phone will restart with default settings and the keyboard will be unlocked. If you are prompted to enter a PIN code upon restart, this is the code protecting your SIM card, not the keyboard lock code. Enter this code and press to confirm.

Question 5

How to perform the initial setup of the Hammer Rock phone?

Accepted Answer

To set up your Hammer Rock phone, follow these simple steps in order:

Insert the battery and SIM card: If the phone is on, turn it off. Unscrew the screws from the battery compartment. Insert the SIM card(s) with the gold contacts facing down, placing them in the slot according to the markings. Insert the 3000 mAh (or 2800 mAh depending on the model) battery, ensuring that its gold contacts touch the connector in the slot. Close the cover and tighten the screws.
Charge the battery: Use a USB Type-C charger (not included with the phone). Connect the USB Type-C cable to the phone's charging port, then plug the charger into a power outlet. A charging icon will appear on the screen. The maximum charging time should not exceed 12 hours. Once the battery is full, unplug the charger.
Turn on the phone: Press and hold the red Combined button (call button) until the phone starts and displays the home screen.
Enter the PIN code if necessary: If your SIM card is protected by a PIN code, the phone will prompt you for it at startup. Enter the code (which will appear as asterisks: ******) and press the Menu key to confirm.
Set up battery management: On first startup, the phone will offer you to choose a battery management mode. You can select Normal mode (100% charge) or Economy mode (80% charge to extend battery life). This setting can also be changed later via [Menu] > [Settings] > [Battery Management].
Check functionality: Once the startup is complete, check that the phone is receiving a network signal (visible signal bars). You can then make calls, send SMS, and access other features of your rugged device.

The Hammer Rock has a 24-hour standby battery life under normal usage and features IP68 protection against water and dust. For maintenance, refer to the regular cleaning recommendations in the manual.

Question 6

How to activate airplane mode on the Hammer BOW LTE phone?

Accepted Answer

The Hammer BOW LTE phone is a rugged and basic phone that does not come equipped with an airplane mode like modern smartphones. In accordance with aviation safety standards, the manual simply recommends completely turning off the phone during a flight. This applies to all wireless electronic devices, as they can interfere with the aircraft's navigation and communication systems.

To turn off your Hammer BOW LTE, press the power button located on the side of the phone and hold it down until the screen completely turns off. The phone will remain off until you turn it back on by pressing this button again.

If you are looking for a solution to conserve your battery or temporarily disable incoming calls without completely turning off the phone, you can access [Menu] > [Settings] > [Profiles] to switch to silent profile or another sound profile as needed.

As a phone designed for ruggedness and durability rather than advanced features, the Hammer BOW LTE has more limited connectivity options than modern smartphones. The airplane mode function is therefore replaced by the simple and effective turning off of the phone.

User manual Hammer : user manuals and guides in PDF

Models Hammer most viewed

Browse manuals Hammer by appliance type

Recent questions about devices Hammer