Patent Document ID: 7877815
Application ID: 11336447

Base Claim:
1. A method for battery authentication in a wireless communication device with an attached battery, comprising the steps of: (a) the wireless communication device entering a low power mode, wherein the low power mode prevents the wireless communication device from initiating and receiving calls; (b) the wireless communication device sending, in the low power mode, a pre-stored plain text to the attached battery, wherein the pre-stored plain text is generated by a tool external to the wireless communication device, wherein the pre-stored plain text is stored in a memory of the wireless communication device during provisioning; (c) waiting, in the low power mode, for a first time period after the step of sending to receive encrypted text from the attached battery; (d) if encrypted text is not received within the first time period, then repeating, in the low power mode, the steps of (a) and (b) up to a pre-defined number of attempts, (e) if the encrypted text is not received within the first time period, and the pre-defined number of attempts is exhausted, then entering, in the low power mode, a battery authentication failure event procedure; (f) if encrypted text is received within the first time period, then comparing, in the low power mode, the encrypted text received by the wireless communication device with a pre-stored encrypted text that is associated with the pre-stored plain text; (g) if the encrypted text received by the wireless communication device matches the pre-stored encrypted text, then identifying the attached battery as an authentic battery and entering an operational mode, wherein the operational mode enables the wireless communication device to proceed with normal operations; and (h) if the encrypted text received by the wireless communication device does not match the pre-stored encrypted text, then entering the battery authentication failure event procedure.

---

Claim 7:
7. The method of claim 1 , wherein a battery authentication security level is “high”, and wherein the battery authentication failure event procedure comprises the steps of: displaying a message in a pop-up window to indicate that the attached battery is not authentic; providing an emergency call option in the pop-up window; powering down the wireless communication device if the emergency call option is not selected within a second time period; placing an emergency call if the emergency call option is selected.