./nayax-emb --direct-cmd -c 'DO DF40 00' -f /dev/hidraw0
```
4. Update Production Info. The SN should change from 003 to 100 for each device:
```
./nayax-emb --direct-cmd -c 'SET DF8B01 01053000200200040000100010A080200060000510400080200D420200392500000301234567FFFF11111111222233444455555555667777777788889920FFFF' -d /dev/hidraw0
```
5. Reset reader:
```
./nayax-emb --direct-cmd -c 'DO DF19'
```
ERROR: Response Timeout -

6. Get Serial number:
```
./nayax-emb --direct-cmd -c 'GET DF4D 01'
```
4202003925000003

7. Get FW version (response is ‘EMVS_v071578’ when translated to ASCII):
```
./nayax-emb --direct-cmd -c 'GET DF4E 01'