Hi I know this thread is from a couple of years back: 20737S VBat short to GND
but was there ever a resolution as we have had 2 chips fail?
One shorted out vBat to GND and the other suddenly pulls low the SPI and serial lines meaning it fails to communicate.
These are probably quality issues occurred during the manufacturing of the module. We have a stringent control process which we constantly share and work with our suppliers. Please approach our representatives in UK to initiate an RMA for these parts.