DRV10983Q1EVM: Driver did not start the motor properly after few days working

Part Number:DRV10983Q1EVM

Hi TI support team.

As I asked before, I'm using DRV10983Q1.

I had some problem but figured out thanks to your advice.

Now I have another issue about the DRV10983Q1

Recently,  I changed two things.

First I selected regulator mode from Buck mode to Linear mode by using resister instead inductor. 

Second Increase the BEMF comparator Hysteresis by setting the BEMF comparator hysteresis bit to "1".

After these change, the probability of successful starting increased, but some of DRV10983Q1 does not work any more after some times power reset. It seems broken because there is no VERG voltage when I measured. I mean it's voltage level is "0". All outputs of DRV10983Q1  are zero (SW, RVEG, V1P8 and V3P3).

Is there anything I have to check, please let me know.

Regards,

Peter