Alex2011

And here is the remote display/panel(U2: 80.35)) firmware for EASUN/POWLAND...IGRID SV IV 5.6K (parallel)
Remote Panel - 3573-08S7 INFINISOLAR V IV 80.35.zip

After a long fight with EASUN costumer service, i managed to get the 2 firmwares for IGRID SV IV 5.6K (parallel function).
For what ever reason, flashing DSP (U1: 54.04) worked flowlessly, even with the Inverter "bricked" with error 32. (charged battery connected, switch on, like the manual recommend).
Display firmware, (U2: 8035), also worked
So now my inverter works again, except that i have lost WIFI function in the process... so it seems that i have to change remote card anyway...But its another story...
If you have IGRID SV IV 5.6K parallel, (mine is from DEC 21 in the sticker),  and you have no success with the firmwares shared on this forum or from voltronic FTP, i am sharing the 2 files given by EASUN.
cheers,
3570-02S2 Upgrade_2809_DSP INFINI V IV 5.6K 54.04.zip

I found that I had a later version, 02.54: