Marek_K

Thanks George, Coulomb for the support and the new FW to my Max. I have no idea why the update via microUSB didn't work. However, a new USB/RS232 cable arrived today and the MAX is already running version 245.11 Once again, I thank both gentlemen for their advice and support. Let the sun shine for you and the batteries don't get old. Have a nice day.

Hi Coulomb, thanks for support. From the zip file "dsp 245.11 patched Max 7.2kW '2809 120V" i take the file "dsp 245.11 patched.hex", copy it on the USB stick (root), rename as "dsp.hex" and then try update MAX with them. Unfortunately it doesn't work, or the update will not take place. Am I making a mistake somewhere in the process?

Show the same in Solar Assistant as in WatchPower...

So today I plucked up the courage and tried to flash my MAX via microUSB. It took 10 minutes, it looked like MAX was processing the update, but in the end, even after a restart, nothing. Next, MAX shows version 45.07 Is it possible that for a hard restart it is not enough to turn off with the button, but it is necessary to disconnect from the battery? Otherwise I'll have to get a NB with a COM port...

Good day everyone, I am in contact with George regarding a patch for my MAX. But I would like to ask here on the forum. In the operating instructions for the AXPERT MAX 7200, it is stated, that the microUSB on the control panel of the inverter, can also be used to update the firmware. Does anyone have personal experience with this route? Has anyone done a firmware update just via USB flash? Thank you