hello guys, i bought an pylontech us 3000 battery from a guy and decided to update the FW...... result bricked battery. been trying to unbrick it and tried FW 3000a 2.8 / 2.9 / 3.4 none work... see attached photos. i do not remember what was the FW version before... i only can tell you that when i enter the Serial number after i try to update the battery it`s not accepting the SN and giving me another SN which is not on the box. TX for helping, i think i need older FW versions .