Please help

Kodak king 5kw. Done firmware upgrade and inverter not starting up after. Only display 32 on screen?

21 hours ago, Peter Woest said:

Kodak king 5kw. Done firmware upgrade and inverter not starting up after. Only display 32 on screen?

What firmware version before reflash?

What version are you attempting to reflash to? (and main or display/MCU?)

Is the 32 followed by the warning symbol (⚠) ?

My guess is it's a communications interrupted warning. Either restart the reflash, or use the USB stick method.

This is described on page 23 (PDF page 25) of this inverter manual:

http://www.mppsolar.com/manual/PIP-MK%2 ... 190717.pdf

I did not notice the warning after 32

Attempting to flash to 71.86 main mcu to match the 2 existing units in a 3 parallel setup. 71.80 before flash. 

First attempt was done with usb stick method. reflash started and after about 10min stopped. After that when inv is switched on, countdown 5.4.3.2.1....32.with fan running.   I dont have the option to re-do the stick method. all but power buttons are non responsive

 

 

On 2020/02/26 at 1:35 AM, Peter Woest said:

I dont have the option to re-do the stick method. all but power buttons are non responsive

Yikes! That sounds like a design failure. Looks like you'll have to switch to the RS-232 update procedure.

Some notes on serial re-flashing a King here. Good luck.

Old thread, but I thought I would share my fix.

Had same issue with error 32 on a Kodak OG-Plus 5.48. Just reflashed it again using USB stick, just press and hold usual button when error 32 is on screen, and run the upgrade again.

Used 71.92 from Coulomb:

 

hi all.

i have a Apert King 5kv 5000w 48v unit, purchased in the beginning of the year.

model name : ERS King 5K (T0003900)

I changed batteries from 8 x 100ah to 4 x 170ah, thinking old ones where not good since i purchased them 2nd hand.

newer ones are also 2nd hand but where supposedly load tested and was told they still good.

been saving for new batteries but need to confirm if issue is batteries or something else. 

initially on the first batteries when power went out it could run comfortably for a good few hours  with my fridge, tv etc still connected and in most cases we didnt notice it was working over the regular 2 hour loadsheding.

Then after a couple months when we had longer and more loashedding periods in a day, i reduced consumption to around 250-300w drain using just house lights and it was only lasting for a hour to 90mins.

complained to guy i got the batteries from and he replaced them with 6 x 170ah batteries  of wich i use 4.

havent had any change to the power usage.

tried adjusting float and bulk volatges etc no differents. maybe lasts 1hr 45mins as a max on the odd occassion.

Reading up online i came across mention of 'floating bug' issue and was told by the rep i purchased the inverter from, to update the firmware.

original firmware was 71.90

been trying to upgrade firmware to 71.97 or 71.95 via USB stick and it always bombs out with a error 32.

after 2 days of struggling i found firmware 71.92 would flash and restore the unit from the error 32.

Tried reflashing again to the later firmware versions but have the same issue with it going into a error 32.

I am flashing via usb stick and OTG cable.

havent found a serial cable locally and my unit didnt come with any cables.

according to the rep i purchased from, they do not come with cables unless it has a parallel board installed.

current settings :

usb priority

eco mode

battery type - user defined

cutoff voltage 47v

back to grid voltage - 46v

back to discharge voltage - 54v

charger source priority - sbl ucb

max charge current 100amp

max ac charge current - 50amp

float charge - 55v

bulk charge - 57.6v

max charge time - auto

 

batteries are northstar nsb170ft red.

2.29 vpc float voltage

 

hope you can shed some light on a remedy to the firmware issue or possibly a problem elsewhere.

1 hour ago, razzor13bt said:

Reading up online i came across mention of 'floating bug' issue and was told by the rep i purchased the inverter from, to update the firmware.

Alas, factory firmware won't fix the premature float bug. However, you could update to patched firmware now.

Patched firmware version 71.97a and patched removable display firmware version 02.66a.

Of course, this  can't undo any damage done to batteries in the past.

2 hours ago, razzor13bt said:

cutoff voltage 47v

That's a bit low, especially for long load shedding. I note that your problems seem to have been worse since long load shedding began (again?).

I would use 48 V. That means that the inverter will stop with error code 04 (low battery) a little earlier, but it will save your battery from discharging past 50%, which is where lead acid rapidly loses capacity / life.

Hi.

I tried flashing to the patch version v71.97a with no luck.

Locks on error 32 screen. 

Have to shut down inverter and restart then can flash back to v71.92

Doesnt accept any other version beside v71.92.

Changed to 8 x new CSB Hrl 12500w 130ah batteries.

On the watchpower app it shows they only charging at 1 amp.

Resting voltage of batteries was +-12.8v.

Recommended float charge is 13.5 - 13.8v

Gives a recommended equalization voltage of 14.4 - 15v

No mention of bulk charge voltage.

Definately need to get a bms to get more accurate data.

 

On 2021/11/07 at 8:48 PM, razzor13bt said:

I am flashing via usb stick and OTG cable.

Have you tried using a USB to RS-232 adapter and a Windows computer?

It's strange that it will only flash to 71.92.

Hey all, thought I'd give my experience for someone else finding this. I went to my inverter and found error code 32 on the display, after never flashing the firmware or anything, it just happened.

I then tried to flash and it seems like I could flash the screen from my pc, not usb (all versions worked), but whenever I tried to flash the cpu 71.*(I tried all versions I could get my hand on, even the latest from supplier), it just did not want to work. I received U03 when using USB OTG cable and, "Can not open serial port step 1" when flashing from usb windows.

I took it in, currently in assessment but, they could not flash it either so my control board must have packed up.

I've got the Kodak King.

Edited December 3, 20213 yr by TBohnen

7 hours ago, TBohnen said:

it seems like I could flash the screen from my pc, not usb

The removable display can't flash itself from a USB flash drive; the USB reading code is too big to fit in the bootstrap loader (the part that remains when you erase the rest of flash memory so that you can write the new firmware). 

7 hours ago, TBohnen said:

I received U03 when using USB and, "Can not open serial port step 1" when flashing from usb.

We might not be understanding each other. I assume both "using USB" and "flashing from USB" to mean flashing the main firmware using a USB thumb drive plugged into the USB port of the removable display using an on the go (OTG) cable. There is nowhere for an elaborate error message to appear, no PC is involved.

How exactly are you trying to flash from USB? Did you mean from the PC using a USB to serial adapter? 

Edited December 3, 20213 yr by Coulomb

@Coulomb apologies @Coulomb, correction:

I received U03 when using USB [USB OTG] and, "Can not open serial port step 1" when flashing from usb windows. "

To re-iterate:

1. When I say main cpu, my assumption is dsp.hex is the main cpu with the versions 71.*. I could not use windows or via the usb otg. When I tried via windows and AxperKINGReflash.exe, it will start, but then after a couple of seconds it would give the error "Can not open serial port step 1" mentioned (I could actually see the inverter display trying).

I could however flash the remote panel, (mcu.hex?), via windows and Remote Panel_ReflashTool.exe (I probably typed the above message in haste and didn't mention that I did not even try to do it via USB otg).

So you are using a different reflash tool, the one that comes with the dsp.hex file? It's really confusing that the display reflash tool has an "update dsp" button that (as far as I know) should never be used. 

I downloaded the zip / tar files and used the flashing tool in the respective folders. For the one that did not work, it was the AxperKINGReflash.exe which did not have the update dsp button but just the update button as far as I can recall.

Good day i know this is an old post but messed up flashing wrong firmware to Axper Max 7.2 kw inverter .Ok i am at my loose end have been trying my best to load firmware on axpert max 7.2kw inverter was wondering if i can use usb stick but where do i even plug it in and where to load on usb stick .Also i am getting this error on the screen

On 2020/02/25 at 6:54 AM, Coulomb said:

32 followed by the warning symbol (⚠)

So any help will greatly appreciated thank you very much .

15 hours ago, kifo said:

was wondering if i can use usb stick but where do i even plug it in

Sorry for the delay; family issues took up nearly all my day.

Firmware updating is discussed in detail here.

15 hours ago, kifo said:

where to load on usb stick

I've never done one myself. I tried a month or two ago and could not get it to work; I didn't try too hard. I get the impression that Voltronic don't consider it the major way to update firmware, just a marketing box that has to be ticked.

My understanding is that the file has to be called dsp.hex (it's unclear to me what case, upper or lower case, and even whether case is considered), and it should be in the root directory of the USB stick. I would make it the only file on the stick, if at all possible. The USB library code seems to be pretty simplistic.

15 hours ago, kifo said:

Also I am getting this error on the screen: 32 followed by the warning symbol (⚠)

That means that the display and inverter are not talking to each other. This is to be expected if the inverter is running the bootstrap loader. This is a small, crude program, never updated, whose only job is to load the main firmware, and jump to the main firmware if a certain marker is present at the end of the firmware image. If not, it keeps looking for another firmware update. That's presumably what is happening. So see If you think your inverter is bricked.

But hopefully by now you have found these posts with an internet search, and are well on the way to recovery.

here is an update i used the hex filei n usb but kind of trick inverter thinking i would use the usb then i plug in my laptop which it recognize after the usb stick was inserted and voila flashed latest firmware you recommended for the Axpert max.Also for the Fault F52 think it have do  with something on battery side not too sure becuause i switch inverter while trying to repair the Axpert Max the result was the same when the inverter try to switch or battery percentage get as low as 54% the inverter shuts everything down so still looking whats the possibility htta both inverter gets the same F52 fault sometimes thanks.

36 minutes ago, kifo said:

Also for the Fault F52 think it have do  with something on battery side

Fault code 52 (F52) is bus voltage too low. In many modes, the minimum bus voltage is indeed set by the DC-DC converter, and unless charging, there should be a fixed ratio (7.0, 8.0, or in between, depending on the model) between the bus and battery voltages. So yes, a very low or saggy battery voltage could cause this, or a weak DC-DC  converter.

40 minutes ago, kifo said:

i switch inverter while trying to repair the Axpert Max

I don't understand "switch inverter".

I'm also confused; you seem to be talking about two Axpert Max inverters now, and you didn't mention repairing it/them before (that I noticed).

3 hours ago, Coulomb said:

Fault code 52 (F52) is bus voltage too low. In many modes, the minimum bus voltage is indeed set by the DC-DC converter, and unless charging, there should be a fixed ratio (7.0, 8.0, or in between, depending on the model) between the bus and battery voltages. So yes, a very low or saggy battery voltage could cause this, or a weak DC-DC  converter.

I don't understand "switch inverter".

I'm also confused; you seem to be talking about two Axpert Max inverters now, and you didn't mention repairing it/them before (that I noticed).

I actually replace the axpert inverter while trying to fix it i put in another inverter which is strange for me to still get error F52

Just now, kifo said:

I actually replace the axpert inverter while trying to fix it i put in another inverter which is strange for me to still get error F52

My axpert inverter got  fault 32 which i flashed wrong firmware on this inverter while trying to get it working again i replaced it with a PowMr 6500w inverter andiwas also getting the F52 fault code from that one so i am thing it have to do maybe with the battery i am using.

On 2021/12/03 at 4:11 PM, TBohnen said:

@Coulomb apologies @Coulomb, correction:

I received U03 when using USB [USB OTG] and, "Can not open serial port step 1" when flashing from usb windows. "

To re-iterate:

1. When I say main cpu, my assumption is dsp.hex is the main cpu with the versions 71.*. I could not use windows or via the usb otg. When I tried via windows and AxperKINGReflash.exe, it will start, but then after a couple of seconds it would give the error "Can not open serial port step 1" mentioned (I could actually see the inverter display trying).

I could however flash the remote panel, (mcu.hex?), via windows and Remote Panel_ReflashTool.exe (I probably typed the above message in haste and didn't mention that I did not even try to do it via USB otg).

I know it has been a while, but did you manage to fix this ? I am currently experiencing exactly the same and getting quite frustrated. A simple RESET should suffice as it is only a communication interrupt (32). I also wonder what the difference is between the Remote Panel_ReflashTool (which works great) and the AxperKINGReflash, which does NOT work (in my case).

It seems like nobody had a solution to clear that damn 32 warning - which totally bricks the inverter.

No HARD RESET pin to short or a diagnostic cable (which I am quite sure does exist) just clearing the error (warning) ...

As a last resort I am ordering a new control board - hopefully reviving my inverter again.

On 2024/06/10 at 1:20 AM, DerickS said:

also wonder what the difference is between the Remote Panel_ReflashTool (which works great) and the AxperKINGReflash, which does NOT work (in ny case). 

Sorry, somehow missed your post. The Remote Panel reflash tool only needs to talk to the display. It should only be used ti reflash the display firmware, despite a button that says it can update the main firmware. 

The Axpert King reflash tool has to talk to the main chip inside the inverter, the DSP, and you have lost communications between the two (hence the warning code 32).

On 2024/06/18 at 5:11 PM, DerickS said:

that damn 32 warning - which totally bricks the inverter.

You should be able to use the inverter, despite warning code 32, as in it should be powering loads, charging the battery etc. If not, the issue is likely that the DSP doesn't have a valid firmware. If so, you just need to keep retrying the main firmware reflash; see my If You Think Your Inverter is Bricked page for hints. 

Replacing the control board will also work, but you'll likely have to update whatever firmware comes with the control board anyway. 

There is a chance that the issue is the comms board between the control board and the display. In that case, replacing the control board will not fix the problem. But again, if that's the case, the inverter should still be operating.