Visual inspection of the driver revealed no anomalies that would indicate a device malfunction.The patient data files were reviewed and revealed ten system malfunction alarms which can occur if there is an issue during initialization of the embedded supervisors during driver boot-up.A driver booting up to the bios screen could be an indication that the 3-volt battery is not providing enough power to the mainboard to maintain the bios programming.During investigation testing, the 3-volt battery was found to be depleted.A known functioning 3-volt battery was installed and the driver displayed the correct user interface boot-up screen.The 3-volt battery is required to be replaced at every 2-year service.When this driver was received and tested, it was approximately 1 month overdue for 2-year service.Functional testing was then performed on the driver and an issue was found with the emergency battery, which was unrelated to the reported issue.The root cause of the reported wrong user interface boot-up screen was determined to be a depleted 3-volt battery.This issue will be tracked and trended as part of the customer complaint process.Syncardia has completed its investigation and is closing this file.Ce 5226 (b)(4), follow-up report 1.
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