June 19, 20241 yr Please find the appropriate software for this device I tried 60.6 60.89 Software is not accepted
June 20, 20241 yr Is this a 5.6kW model, or 6.0kW, or perhaps 4.0kW? Is it definitely a Twin? Do you happen to know what version of main (U1) firmware it came with? Does the warning code 32 come up if you restart? If so, it's likely that a partial firmware was updated. If so, you should be able to restart the firmware update. Worst case is if there is incompatible or corrupt firmware in there. In that case, you have to time the pressing of the final button exactly the right tine after you power up. See my If You Think Your Inverter is Bricked page for clues.
June 20, 20241 yr This happened to me when I tried to update my VM III Twin with monitoring app still open I, actually, did it twice One time I recovered using a USB stick with firmware The second time I just made sure nothing is blocking COM port and flashed from PC This required starting flashing as soon as inverter starts up, if I let it sit for a bit -- the flashing will error out for some reason
June 20, 20241 yr Author vm iv twin 4k The old version was 60.06, which opens panels from 60 v I tried to update it to version 70, which is on the forum, and it started giving error 32. I tried to download all the versions on the forum when it reaches 5%. Sometimes it reaches 12% or 40%, then it gives me an error in sending data to the inverter. Is it possible to have a version that works on it without problems? When running, the screen components turn on, a counter goes from 8 to zero, then an error is 32. Please help.
June 20, 20241 yr Author I tried all versions on the forum and the same result. When it reaches 6%, 10%, 15, or 30%, it gives me a reading or sending error.
June 21, 20241 yr The fact that it stops part way has nothing to do with the contents of the firmware, i.e. version 70.00 or whatever. It sounds like version 70.00 didn't work out, although it sounds like it should be fine. Because it's stopping part way, I wonder if you need "the resistor". I've long thought that the resistor was nonsense, but maybe there is something to it. It seems that you add a resistor in series with the white wire of your RS-232 cable that came with the inverter. For the life of me I can't find the details right now, like the value of the resistor. Does anyone recall where this is written? Edit: I finally found it, following a post I had written ages ago. It's in the firmware upload instructions for models with a removable or round display. Details here (click the arrow or this link to go directly to the relevant post): Edited June 21, 20241 yr by Coulomb
June 21, 20241 yr Author The screen update is complete and I updated it to version 39.16 as for the processor firmware update
June 21, 20241 yr Author The screen update is complete and I updated it to version 39.16. As for the processor firmware update, it is not complete. It reaches 5, 10, or 15 percent and gives an error.
June 21, 20241 yr 6 minutes ago, waaalid said: The screen update is complete The resistor affects both display and DSP reflashing; the DSP reflash is performed via the display. It may be that something in the display is overheating without the resistor. So I think it's worth trying this for updating the DSP firmware.
June 25, 20241 yr @waaalid flash your DSP firmware over USB, not serial, using the same flash tool, and everything will go smooth. If not, try flashing using OTG. This should complete your upgrade nice and easy!
June 25, 20241 yr I could provide you with more relevant and quicker assistance if you could provide me a picture of your inverter's sticker, as this should make things much easier for us. I suspect that you're not using the suitable firmware for your inverter's model.
June 27, 20241 yr On 2024/06/25 at 10:27 PM, Tarek Yag said: flash your DSP firmware over USB, not serial, using the same flash tool, and everything will go smooth. At least the old reflash tool (the one before the Arena reflash tool) could not talk to a USB port at all. I don't know if the Arena reflash tool can specify a USB port. The USB port isn't separate from the RS-232 port; its data just wire-ORs with the RS-232 data. So it's still 2400 bps. So I can't see any real advantage to using the USB port, unless you have a USB to RS-232 port that the reflash tool doesn't work with, for some obscure driver related reason.
June 27, 20241 yr 10 hours ago, Coulomb said: I don't know if the Arena reflash tool can specify a USB port. It does, I was never able to reflash my DSP firmware using my USB to RS232 adapter, although I tried different ones with Prolific and FTDI chips!! The USB port is selectable right above COM1 in the reflash tool. 10 hours ago, Coulomb said: So it's still 2400 bps It is indeed. However, you never have to specify the baud rate in Windows as it communicates with the inverter using USB FS Mode (Full Speed) protocol as a HID device. This way, you don't have to worry about a lot of driver settings, thus much easier process, and at the same time, stay away of all the well-known hassles around USB to Serial adapters, thus cutting down costs. 10 hours ago, Coulomb said: unless you have a USB to RS-232 port that the reflash tool doesn't work with This is my case indeed. I reflashed my inverter's DSP more than 10 times since last year using USB only, and was never able to do so using my adapters as I tried tens of times. Moreover, I did a very extensive research and a lot of experiments in USB to Serial (both RS232 and RS485) issues over a period of two weeks about a month ago. I found out some important details about a few problematic aspects in this regard. I will be opening a separate thread to discuss about it all in this forum, and I'm very interested to discuss it with you specifically, @Coulomb By the way, do you think it is possible to make this DSP reflash tool to be able to reflash MCU firmware by editing InvConfigFile.ini file to reflect MCU ROM addresses? Edited June 27, 20241 yr by Tarek Yag
June 28, 20241 yr 23 hours ago, Tarek Yag said: The USB port is selectable right above COM1 in the reflash tool. I never noticed that! 🫢 Thanks for pointing it out. 23 hours ago, Tarek Yag said: do you think it is possible to make this DSP reflash tool to be able to reflash MCU firmware by editing InvConfigFile.ini file to reflect MCU ROM addresses? I'd have to do some research. The DSP has 24 bit addresses, and the MCU has 32-bit addresses, so that might be an issue. It might be that the MCU reflash tool, which after all has the two update buttons, can read both sets of information from the .ini file. It might be able to cope with the difference in address sizes. I'm guessing that they intended to have one reflash tool to update both processors, but it's not clear whether they finished the job.
June 28, 20241 yr 3 hours ago, Coulomb said: I never noticed that! 🫢 Thanks for pointing it out. LOL, there you go now! 😂 Even I found it by luck last year while messing around with the selection after failing COM port attemps in my very first DSP reflash! I would like to suggest that you update your reflash instructions to reflect the existence of the USB option I mentioned above. 3 hours ago, Coulomb said: can read both sets of information from the .ini file Are you sure there are any INI files included in the MCU reflash tool? I never noticed this. 3 hours ago, Coulomb said: but it's not clear whether they finished the job. How can we make sure of this? You know, I'm always ready to reflash firmware, and I'm ready for a challenge now as long as it doesn't render my inverter completely bricked! It should be ok as long as I can reflash with the known tools.
June 28, 20241 yr On 2024/06/20 at 4:44 PM, waaalid said: 😭 Is this the correct firmware? the version is 56.97 in the directory name. As @Tarek Yagsaid, provide us with a photo of the sticker of your inverter. For flashing firmware I use a USB to serial cable (photo attached) and connected directly to the controller board. (it's ugly but works). Edited June 28, 20241 yr by AMalakani
June 28, 20241 yr 14 minutes ago, AMalakani said: Is this the correct firmware? the version is 56.97 in the directory name. No, he tried a lot of firmware versions, looks like this is one of his attemps and is very old. He is supposed to flash 70.00 right now as he has VM IV Twin just like me. 16 minutes ago, AMalakani said: I use a usb to serial cable Would you please provide more details about the components of this cable?
June 28, 20241 yr 19 minutes ago, Tarek Yag said: Would you please provide more details about the components of this cable? Sure, its USB to TTL (CH340), pins as in the photo. Edited June 28, 20241 yr by AMalakani
June 29, 20241 yr 23 hours ago, Tarek Yag said: I would like to suggest that you update your reflash instructions to reflect the existence of the USB option I mentioned above. Done. Though I've never done one like this; is there anything else to add? 23 hours ago, Tarek Yag said: Are you sure there are any INI files included in the MCU reflash tool? I never noticed this. Oh. You are right again. Perhaps the display addresses are fixed. But then how does it know what reflash command and addresses to use for the DSP reflash? Strange. 23 hours ago, Tarek Yag said: How can we make sure of this? You know, I'm always ready to reflash firmware, and I'm ready for a challenge... A reasonable candidate might be one of those rare cases where the DSP and display firmwares come in the same rar/7z/zip file. Then just try to use the MCU reflash tool to update the DSP firmware. I don't have time to search for one of those tonight (actually this morning). You might be able to search for strings in the MCU reflash tool binary. I have found the reflash command this way before. I can tell you the reflash command for any firmware that I have the update file for.
June 29, 20241 yr 21 hours ago, AMalakani said: For flashing firmware I use a USB to serial cable (photo attached) and connected directly to the controller board. (it's ugly but works). Huh, interesting. I guess that bypasses any problems with the display hardware and the communications board. But of course you have to open the machine to get to the control board.
June 29, 20241 yr 10 minutes ago, Coulomb said: But of course you have to open the machine to get to the control board. Yes, this is the only downside of it but for machines with a USB port I use this flash thumb.
June 29, 20241 yr 5 minutes ago, AMalakani said: Yes, this is the only downside of it but for machines with a USB port I use this flash thumb. Sir. Could I know Upgrade instructions with Flash Thumb.
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