SveinHa
New Member
Hi all.
Have had in use my SMW8k inverter for 3 months and it have performed brilliantly apart for one minor problem: Every now and then, days or weeks between, it sends power TO the grid which it should not be able to do, it is an off-grid inverter. Very small amounts, just a few Wh, but the power company gets pissed off and want me to shut down my solar plant. EASun want me to upgrade firmware and I guess it was on time since I have ver 46.05 and the files I received is ver 90.13
First try is that I get a link to new files but NO instructions, next email I am pointed to using USB-OTG adapter but no more instructions. I try to copy all files to the root of the USB-memory and activate upgrade from keypad/display. The inverter seems to lock up for about 10 minutes and then wake up with the same fw version as before. I restart the inverter but still same fw.
A few more emails and I get 5 pages with instructions using a Windows PC and USB2Serial cable. After a few unsuccessful connection attempts, the memory is deleted and nothing else happens for about 30 minutes so I disconnect, restart my PC and try to update again. Now, the update seems to start but after 13 seconds it stops and nothing more happens... Try again at least 15 times with restart of my PC many times but the result is always the same, freeze after 13 seconds...
Just to try something else, I power down and up the inverter but now I end up with error 32 and red light in the FAULT LED and no power in my house... Error 32 is not listed in the manual...
I've reported my problem in detail to the chinese people but I guess I was a bit late today since they are a few timezones before us...
Do any of you know if I may be able to reflash without any special equipment? I know some units can be flashed using an Arduino as a flashing tool and I have a few of those lying around...
Have had in use my SMW8k inverter for 3 months and it have performed brilliantly apart for one minor problem: Every now and then, days or weeks between, it sends power TO the grid which it should not be able to do, it is an off-grid inverter. Very small amounts, just a few Wh, but the power company gets pissed off and want me to shut down my solar plant. EASun want me to upgrade firmware and I guess it was on time since I have ver 46.05 and the files I received is ver 90.13
First try is that I get a link to new files but NO instructions, next email I am pointed to using USB-OTG adapter but no more instructions. I try to copy all files to the root of the USB-memory and activate upgrade from keypad/display. The inverter seems to lock up for about 10 minutes and then wake up with the same fw version as before. I restart the inverter but still same fw.
A few more emails and I get 5 pages with instructions using a Windows PC and USB2Serial cable. After a few unsuccessful connection attempts, the memory is deleted and nothing else happens for about 30 minutes so I disconnect, restart my PC and try to update again. Now, the update seems to start but after 13 seconds it stops and nothing more happens... Try again at least 15 times with restart of my PC many times but the result is always the same, freeze after 13 seconds...
Just to try something else, I power down and up the inverter but now I end up with error 32 and red light in the FAULT LED and no power in my house... Error 32 is not listed in the manual...
I've reported my problem in detail to the chinese people but I guess I was a bit late today since they are a few timezones before us...
Do any of you know if I may be able to reflash without any special equipment? I know some units can be flashed using an Arduino as a flashing tool and I have a few of those lying around...