Problem Description
The SaveFamily device does not detect or recognize the inserted SIM card.
Mandatory Preliminary Checks
1. SIM Card Status
- Confirm with the operator that the SIM card is activated and operational.
- Verify that it has sufficient balance or an active data plan (minimum recommended: 500 MB).
- Ensure the PIN code is disabled (essential requirement for the watch to function).
2. Technical Compatibility
- Ensure the card is the correct size (most models require a nano-SIM).
- Verify there is adequate network coverage in the usage area (recommended: 4G/LTE).
Step-by-Step Resolution Procedure
Step 1: Physical Verification of the SIM Card
- Completely turn off the watch.
- Remove the SIM card from the device.
- Visually inspect:
- Chip condition (no damage or scratches)
- Contact cleanliness (clean with a dry cloth if necessary)
- Correct size (nano-SIM for most models)
- Correct reinsertion:
- Orientation: chip facing downward (for most models)
- Ensure full engagement (a "click" should be felt)
- Firmly close the compartment.
Step 2: SIM Card Functionality Test
- Test the SIM card in another mobile device to confirm:
- Network signal reception
- Ability to make and receive calls
- Availability of mobile data
- If it does not work in another device: Contact your mobile operator.
- If it works in another device: Proceed to the next step.
Step 3: Device Configuration
- Turn on the watch with the SIM card already inserted.
- Wait 2–3 minutes to allow automatic detection by the system.
- Check the screen for:
- Mobile network signal icon (with signal strength indication)
- Name of the mobile operator
- If no signal appears, restart the device while keeping the SIM card inserted.
Specific Problems and Solutions
Case 1: "No Signal" or "No Service" Message
- Activate and deactivate airplane mode (if available on your model).
- Perform a full device restart.
- Verify frequency band compatibility (SaveFamily devices generally operate on B3, B7, and B20 bands).
- Test the device in a different location with known coverage.
Case 2: PIN Code Request
- Mandatory requirement: The PIN code must be disabled for the watch to function.
- Disabling procedure:
- Insert the SIM card into a standard mobile phone.
- Go to: Settings > Security > SIM Card Settings.
- Select the option "Disable PIN lock."
- Reinsert the SIM card into the watch.
Case 3: Intermittent Recognition
- Possible causes and solutions:
- Dirty contacts: Clean the contacts with a dry cloth.
- Worn card: Test with another SIM card.
- Insertion issue: Ensure firm and complete engagement.
- Possible slot damage: Contact technical support.
Manual Network Configuration (if your model allows)
- Go to: Settings > Mobile Networks.
- Manually select your network operator.
- Manually configure the APN if necessary (consult your operator for details).
Note: Most cases of SIM card recognition failure are resolved by verifying card activation, balance/data availability, PIN disablement, and proper physical insertion.