BLE Write strings Not Sending

Have written app for DSD Tech BT-01C V2 single relay with BLE extension 2020082 and BLE-device-sort.aix using write string with response.
The BLE connects but no data sent. data=A104D2010177AA.
If I send with nrf scanner it clicks the relay but not with the app.
No errors are reported just no switch of relay.

Tried using all different write bytes, strings, list and so on but same issue.
Location and permissions granted.
Can anybody advise what I may be doing wrong in the App?

Hi All, Solved it with write Hex list works OK now.

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