APL ERROR IN MTN6212-03XX

[NAEIM]

Hi colleagues,

I have a problem with a mtn6212-03. On screen it shows "APL" and I'm not able to download application via ETS5.7.4 on it? I tested all .KNXPROD and .VD files on it, but they didn't work. Is there the same problem for others? Does it have a solution?

Thanks for your consideration in advance 

Software problem at MTN6212-0319 fw 

[Cristiano_Carli_Ballola]

Hello NAEIM,

"APL" on the display indicates that a previous loaded application program has been unloaded from the device, as also shown in the ETS download history.
Have you tried to use a different Bus interface?

I honestly don't remember if those devices need a plugin or not.
Maybe you can try to enable the "compatibility" mode in the general settings of ETS and then try to download the application program again.