Axpert Max 7.2kW tips F90,
U1 (45.06), U2 (12.03）, U3 (8888). The merchant suggested me to update the firmware, I tried to update U1 and U2, but it still shows F90. What should I do? I really need your help! Sincerely thank you!
@Coulomb I really admire that you understand a lot about inverters, maybe you can help me.

Edited January 3, 20232 yr by Peter Sam
@Coulomb

Try this:

 

7.2KW.zip

F90, Is a fault from a bricked inverter. Somehow, you now have to try to salvage & get this machine working again by trying to flash new firmware or older compatible firmware. Why did you try to flash firmware in the 1st place. It's a very unforgiving task if it goes wrong like this. 

What was your original problem to flash, what were you trying to improve? 

5 hours ago, Steve87 said:

F90, Is a fault from a bricked inverter. Somehow, you now have to try to salvage & get this machine working again by trying to flash new firmware or older compatible firmware. Why did you try to flash firmware in the 1st place. It's a very unforgiving task if it goes wrong like this. 

What was your original problem to flash, what were you trying to improve? 

Thank you for your reply, thanks, @Steve87 thanks,  the original problem is F90.  I'm really sad, I didn't make any settings, the inverter suddenly prompts an error, the screen shows F90 and there is a harsh beep, I try to update the firmware sent by the seller, but the problem remains.

7 hours ago, Georg594 said:

Try this:

 

7.2KW.zip 1.41 MB · 0 downloads

Thank you very very much for the firmware you provided, @Georg594 may I know the version number of this firmware.

3 hours ago, Peter Sam said:

Thank you for your reply, thanks, @Steve87 thanks,  the original problem is F90.  I'm really sad, I didn't make any settings, the inverter suddenly prompts an error, the screen shows F90 and there is a harsh beep, I try to update the firmware sent by the seller, but the problem remains.

Then you should return this unit to the seller because it's defective on delivery. F90 is not a normal fault. 

F90 is a " clone " detection but sometimes just a corrupt eeprom.

 

The firmware is based on 90.19 and shows this too.

It has F90 patch applied and mppt optimized like in my 8kw firmware ( these versions are nearly the same)

20 hours ago, Georg594 said:

Try this:

@Peter Sam, I can confirm that the attached zip file contains main firmware for Axpert Max 1 7.2kW version 90.19, patched to avoid fault code 90, and with Georg's patches to avoid the worst of the "stuck at 90V" MPPT problem, with 120 V minimum MPPT voltage.

Assuming that you have a '2809 processor (probably with original firmware version 45.xx), this will solve your problem.

The fault code 90 is a brutal way to punish owners who buy cheap clones that use illegal copies of Voltronics' firmware, but it also catches out some legitimate Voltronic owners, who have an EEPROM glitch, or some other glitch. It only shows up after 60 days of runtime.

Edit: I'm not aware of any 7.2 kW models with the newer '28066 processor, but if you do happen to have one, then the new firmware will refuse to load, but you should not brick your inverter.

Edited January 4, 20232 yr by Coulomb

22 hours ago, Coulomb said:

@Peter Sam, I can confirm that the attached zip file contains main firmware for Axpert Max 1 7.2kW version 90.19, patched to avoid fault code 90, and with Georg's patches to avoid the worst of the "stuck at 90V" MPPT problem, with 120 V minimum MPPT voltage.

Assuming that you have a '2809 processor (probably with original firmware version 45.xx), this will solve your problem.

The fault code 90 is a brutal way to punish owners who buy cheap clones that use illegal copies of Voltronics' firmware, but it also catches out some legitimate Voltronic owners, who have an EEPROM glitch, or some other glitch. It only shows up after 60 days of runtime.

Edit: I'm not aware of any 7.2 kW models with the newer '28066 processor, but if you do happen to have one, then the new firmware will refuse to load, but you should not brick your inverter.

Sorry for the late reply to your message. Thanks for your help, I'll try to fix it as you suggested, and I'll report back on the bug fix, thanks anyway. @Coulomb @Steve87 @Georg594

Hey @Peter Sam, I have a customer out in the middle of the Free State with the same issue... As mentioned by @Coulomb, the master of software issues, it's an EEPROM issue and an update/patch will be needed to fix it. If your supplier has contact with Voltronic they can get a custom package made but they need to be written specifically for each serial number or you'll run into further issues down the line. Apparently, as per Voltronic, this is caused by a litany of things from sudden shutdown to a random hiccup...

So if you don't come right, since some of these fixes can be rough to execute correctly, your supplier can just give Voltronic the "F90" error code and serial number to get a custom package written for your unit. They may be slow and difficult to deal with but there is less room for error, I have tried this before and ended up messing it up... xD

Today I tried upgrading the 7.2KW with the 90.19 firmware you provided and it doesn't report an error now. Thank you God for arranging all this and allowing me to solve a problem that has puzzled me for a long time here. Thank you for your patience and enthusiasm. I'll have it installed tomorrow and try to get it working, hopefully the good news continues. Greetings from Korea. @Coulomb @Georg594  @Steve87 

감사합니다

Good to know that the Voltronics banner & the solar bug has hit as far afield as Korea. Enjoy the machine, glad you got it fixed!!!

@Peter Sam, note that this firmware works around the issue, but there may be an underlying issue with EEPROM access. If so, you may find settings being forgotten, measurements off, serial number not matching label, and more subtle and important issues. If so, you may need to get it repaired and/or have a custom setserial  command made for you to initialise the EEPROM correctly (assuming it just got scrambled, yet the hardware is otherwise fine).

Dodgy EEPROM can be a real hassle.

17 hours ago, Steve87 said:

Good to know that the Voltronics banner & the solar bug has hit as far afield as Korea. Enjoy the machine, glad you got it fixed!!!

Yes, as you said, there are sales in Korea, but there are very few sellers, so the service attitude is not good. That's why the difficulty has been delayed, so I've come here. I am very happy to meet many experienced and enthusiastic friends.
@Coulomb THX, I have installed it and it is working fine. If I encounter the kind of problems you reminded me in the future, I will contact the seller in time, and I will also report my equipment here at any time. May God continue to bless your work.

Dear @Coulomb, @Georg594, @Steve87,
Good day to all of You with all the best wishes for New Year 2023...
I am reading Your posts with big interest and high respect from all of You.
I have 17.440 kW System with 2xTommaTech 7.2k MAX Plus HV 48MPPT Inverters working in parallel connected to 24 Pcs Lead-Acid 2Vx500Ah Batteries in serial.
From beginning I had "Eprom" fault Alarm on both Inverters.
Both Inverters were with U1 version 69.02 and U2 112.14.
Connected with TommaTech and they send me Firmware for U1 69.61 and AxpertTools to patch my serials numbers after Update. I started to update first Inverters but I got Error 32 while Update process. Due to lack of experience I made mistake to try to update also MCU and Display dead to no reaction.
I decided to send Inverter to Service man proposed from Inverter supplier. They recover Inverter with U1 version 69.60 but said that Display is till dead. Service man sold me other Display with U2 Version 12.13 which I updated to 12.21 version after that.
I updated also untouched Inverter to version 69.60 and untouched display to 112.19 because in WachPower were not showing sum of Power generated.
So, now I have:
LM Inverter U1 69.60 and U2 12.12 (LM - Left Master defined by myself)
RS Inverter U1 69.60 and U2 112.19 (RS - Right Sleeve defined by myself)

As You can see 1st Inverter with Display with 12.21 don't showing U2 version at all.
Also Inverters showing different Data Charts but showing correct sum of Generated of both Inverters.

So, I would like to:
1.  To equalise Display versions. TommaTech support told me that 12.21 is the latest U2 firmware to support all 12.xx or 112.xx versions. What You think?
I am asking You because I am afraid that the Display which Service man sold to me is maybe with old processor/controller.
2. To update both Inverters from 69.60 to 90.19. Can I update them? What You think?
I am asking You because so big jump from from 69.60 to 90.19 for me is quite big and also until this moment I was using ArenaINVReflashTool instead of ReflashTool_Xseries as used in this version.

I also have following questions to U1 version update:
- Do I need to patch also Serial Numbers after Upgrade from 69.60 to 90.19? TommaTech support give me everything what I need to patch my Serial Numbers already.
- Will I be able to return to 69.60 version if something went wrong?

Thank You very much in advance for Your time, kind answers, opinion and assistance.
With kind regards,
aamilev  

 

 

 

Edited January 16, 20232 yr by aamilev

2 hours ago, aamilev said:

TommaTech support told me that 12.21 is the latest U2 firmware to support all 12.xx or 112.xx versions. What You think?

I would not update between 12.xx and 112.xx. It MAY be that they've finally harmonised them, but I don't think so. You can parallel 12.xx displays with 112.xx displays; just use the latest version of 12.xx and 112.xx as appropriate.

2 hours ago, aamilev said:

To update both Inverters from 69.60 to 90.19. Can I update them?

I don't think so. I've not seen any firmwares for 7.2 kW with '28066 processor, and I've not seen any 69.xx firmwares. All the 90.xx firmwares for Axpert Max 7.2 kW that I've seen so far seem are for the '2809 processor. You can try it if you want; it should not brick your inverter. But my prediction is that the firmware won't update, because the reflash commands will be different.

What do TommaTech support say about DSP firmware updates?

23 minutes ago, Coulomb said:

I would not update between 12.xx and 112.xx. It MAY be that they've finally harmonised them, but I don't think so. You can parallel 12.xx displays with 112.xx displays; just use the latest version of 12.xx and 112.xx as appropriate.

I don't think so. I've not seen any firmwares for 7.2 kW with '28066 processor, and I've not seen any 69.xx firmwares. All the 90.xx firmwares for Axpert Max 7.2 kW that I've seen so far seem are for the '2809 processor. You can try it if you want; it should not brick your inverter. But my prediction is that the firmware won't update, because the reflash commands will be different.

What do TommaTech support say about DSP firmware updates?

Dear @Coulomb,
First of all thank You very much for Your swift reply! Highly appraced.
OK, I will not update 112.19 to 12.21 as You sugest but I if tried and something get wrong can I re-flash back with 112.19 or not?
From my side 12.21 is better than 119.19 and most probably newer version.

How I can find out What is Processor (28066 or 2809) of my Inverters?

TommaTech support asked me to update problematic verion 69.02 with 69.61 and patch after that but in fact I never did after I brick my LM Invertor.
As I stick for the moment to 69.60 to both Inverters but I want to have patched version for better production below 90V PV.

23 minutes ago, Coulomb said:

What do TommaTech support say about DSP firmware updates?

What actually You mean?
To ask them whether I can update to 90.19? Or?

Edited January 16, 20232 yr by aamilev

7 minutes ago, aamilev said:

but I if tried and something get wrong can I re-flash back with 112.19 or not?

It's been done, but it's a lot of effort and heartache. I would not recommend it. It takes multiple attempts and near-split-second timing.

Quote

How I can find out What is Processor (28066 or 2809) of my Inverters?

See the second paragraph of Chipset Chatter.

13 minutes ago, aamilev said:

What actually You mean?

I'm really confused about your inverters and their firmware versions. What is the LM inverter? How many do you have and what are the firmware versions?

Do you have any 69.xx firmware update files? If so, are they ones that you are prepared to run?

Can you briefly remind me of what happened with this bricking episode?

 

5 hours ago, Coulomb said:

It's been done, but it's a lot of effort and heartache. I would not recommend it. It takes multiple attempts and near-split-second timing.

Hi @Coulomb,
Your regarding headech for re-flashing back 12.21 to 112.19 well noted and clear. Thanks.

5 hours ago, Coulomb said:

I'm really confused about your inverters and their firmware versions. What is the LM inverter? How many do you have and what are the firmware versions?

I have 2 Inverters: LM (Left Master) and RS (Right Sleeve) Inverter I called them for my easy handling.
Both now with version 69.60. I have no issue with Inverters now but I want to update as possible to patch @Georg594 Version for better production below 120 V MPPT Voltage.
 

5 hours ago, Coulomb said:

Do you have any 69.xx firmware update files? If so, are they ones that you are prepared to run?

Yes, I have 69.60 and 69.61 original update files received from TommaTech (TT) Support. I used 69.60 to update from 69.02 my non-brick-story RS (Right Sleeve).

 

5 hours ago, Coulomb said:

Can you briefly remind me of what happened with this bricking episode?

Briefly,
My originally Inverters were with U1 69.02 and U2 112.14 and they were getting "Eprom" Alarm foulth and therefor I contacted TT Support for assitance.
They send me 69.61 files with patches for each Serial Numbers with request to update both Inverters.

While I attend to update my LM (Left Master) Inverter with received from TT Support 69.61 version and I brick the Inverter and Display . Big specialist!

Service man repair LM (Left Master) Inverter with Version 69.60 but was not able to recover bricked Display and sold me one with U2 12.14 Version.

After that, I updated my non-brick-story RS (Right Sleeve) also to 69.60 received also from TT Support because they were not able to work in parallel properly.

Due to the fact that in PowerWatch Power and Energy was not showing Sum of produced Power and Energy of both Inverters I udated received Display with 12.14 to 12.21 with Update files received also from TT Supprt. After that Watch Power shows corect sum of Power but Energy only from Inverter with version 12.21.

Therefore, I updated Display with version 112.14 to 112.19 but no any visible difference and still Energy production in WatchPower is not sum of both.

Therefore, I still want to update Display with 112.19 to 12.21.
Also, I want to update both Inverters as possible to @Georg594 patched version for better production below 120 V MPPT Voltage.

This is the stoty.

Edited January 16, 20232 yr by aamilev

15 hours ago, aamilev said:

I want to update both Inverters as possible to @Georg594 patched version

It would be good if you could post 69.61 here, or attach in a PM to me. I'd like to check out what's different about that series, compared to the others we have for 8 kW Max 1 models.

2 hours ago, Coulomb said:

It would be good if you could post 69.61 here, or attach in a PM to me. I'd like to check out what's different about that series, compared to the others we have for 8 kW Max 1 models.

Hi @Coulomb,
I already sent You in PM.

Edited January 17, 20232 yr by aamilev

I had a issue this morning when for about 1:30h the System was not generating Energy from PV while PV Voltage was already much above 120 V!

So, after I switched to BATTERY Mode (SBU) then everyting came back to normal.

I also observed last night that Battery were not changing to set Maximum Unitily Charging Current of 10A but only to 2A insted of:

Last time when I face the same issue solution was again to switch to BATTERY Mode (SBU) then everyting came back to normal.
See below example from previous night:

Does, someby can help with opinion what can be the issue for this anomaly?

Thank You in advnace!

Edited January 17, 20232 yr by aamilev

good morning I have 2 7.2kw inverter that I want to parallel but the firmware is not the same can you please help with firmware

On 2024/09/23 at 7:44 PM, jako123 said:

can you please help with firmware

See your other post; I need to know your existing main (U1) firmware versions.