Looking for firmware for Axpert MKS PLUS 3kVA 24V model

[flltech 8]

I am looking for a firmware for Axpert MKS PLUS 3KVA 24V if anyone has that available. I downloaded from link below but after update it shows battery voltage as 50V. 

http://www.ostrovni-elektrarny.cz/index.php?page=podpora

Hoping someone can help me here.

 

[Chris Hobson 1,765]

Which firmware did you download?

This looks like the right one. Note proceed with caution and at your own risk.

MKS_1_3K_Plus_0242.zip

[flltech 8]

5 hours ago, Chris Hobson said:

Which firmware did you download?

This looks like the right one. Note proceed with caution and at your own risk.

MKS_1_3K_Plus_0242.zip

Yes this is the one I tried but after upgrade now it shows battery voltage as 50V when really battery voltage is 25V. Further as soon as I connect solar, it shows 12 error.

[Chris Hobson 1,765]

Who did you get your machine from? They may have the right firmware.

[manee_man 0]

0242 firmware is problem

solar input show but solar charging not start