Our customer have an old (2012) Android application on a Lenovo tablet that is paired with MZ320 and was working fine. When the MZ320 went EOS and they bought a few iMZ320 without pre testing but their app did not work. The partner was able to replace it with old MZ320 stock since it was just a few printers.
Last year, we did a test with the bluetooth only P4T demo unit of mine and it was printing fine using line_print mode so they ordered.
Now the new P4T printers arrive with same SKU as my demo unit but it won't accept any BT printing from their Android Application.
The Android Zebra Utilities Ticketing (driving) demo program works on both P4T printers without any problem.
Their application can still print on my demo unit but cannot on their new unit. Same SKU, same firmware, same setting.
I have attached the allcv of both printers and also the captured data from the my good demo unit.
We tried to capture data from the new not good P4t but there was none.
Would really appreciate any help.