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341-340 MDM NVM EEPROM Data Fault
BSD-ON: 3.6 PWB Communication (6 of 9)
NVM data error (valid data is not stored in a valid address).
NOTE:
When turning the power OFF, turn OFF the Power Switch first and then the Main Power Switch.
Procedure
1.Turn the power OFF and ON.
2.Install the correct version of the IOT firmware.
3.Initialize the IOT NVM (includes writing back the adjustment NVM).
4.If the problem persists, replace the following parts in sequence:
•MDM PWB (7830/35) (PL 18.2A)
•MDM PWB (7845/55) (PL 18.2B)
•MCU-PF PWB (7830/35) (PL 18.2A)
•MCU-PF PWB (7845/55) (PL 18.2B)