Hi farooqui faheem,
Thank you for the additional details. Since you mentioned that the last update was in October 2024, could you confirm whether your device is a Surface Duo 2 and share the software version shown under Settings > About > Build number?
Please also clarify what happens with the SIM card removed. Does the phone stop restarting, or does it still enter the same restart loop? If the issue only occurs while the SIM is inserted, turn off the phone, remove and reinsert the SIM carefully, then test with another compatible SIM if one is available. This can help determine whether the issue is related to the SIM card, carrier connection, or the device itself.
If the phone continues restarting even without the SIM, back up any accessible data and consider using the official Surface Duo recovery instructions. Please note that recovery should be treated as a last resort because it reinstalls the device software and may erase personal data.
Surface Duo devices have also reached the end of their servicing period, so they will not receive newer Android or security updates. If recovery does not resolve the issue, please open the Surface app and select Get Help, or use Microsoft Support to review the available service options for your device and region. Thank you so much for your understanding.
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