Alibaba Solar Scam : Light Flickering issue with Chinese Solar Inverter Voltronic VM IV clone SunBoost

[TechSree]

Hey Team, I'm also faced this issue with same SunBoost 6KW VM-VI Twin model from Alibaba and same flickering issue in my inverter and they provide same type wifi card which is only connect with smart life with limited features even i order again a motherboard with control card still no solution for flickering and SunBoost Alibaba team can't accept this according to Sunboost issue in my grid side voltage but I have another Company Hybrid inverter which works too smooth on same location.
At present firmware in my both control card maybe issue in firmware with this motherboard
U1 6010
U2 3917

I test this inverter in multi-scenarios
1) When inverter running only on battery output is so smooth no light flickering and humming noise from old transformer based inverter. (No Grid & Solar connected).
2) Now Inverter running on battery when i connect grid and inverter starts charging immediately lights starts flickering and humming noise from old inverter this time i set charging Solar and Utility. (Battery + Grid Connected)
3) When my home lights connected to Grid directly and I connect inverter with same GRID at present no Solar and Battery connected I change charging mode and grid feed mode.
-> When settings change to ( Charging mode - Solar and Utility with Grid Feed Enable) same issue and also disturb grid side voltage because my home lights direct connected to grid still lights flickering and humming noise from old inverter.
-> When settings change to (Charging mode - Solar Only with Grid Feed Enable) now no flickering on lights and humming noise is too low from old inverter.
-> When settings change to ( Charging mode - Solar and Utility with Grid Feed Disable) now no flickering on lights and humming noise is too low from old inverter.
-> When settings change to (Charging mode - Solar Only with Grid Feed Disable) now no flickering on lights and humming noise is too low from old inverter.

The main issue is Grid Voltage fluctuations when Inverter is connected that's why lights flicker even i have DSO if required anything i will provide.
Please help for this issue and if possible please provide any suitable OLD/NEW Firmware for this inverter with flash process.

Check attached both motherboard reference
View attachment 271058


Thank you to all team members for their valuable support and time contribution. Your efforts are greatly appreciated!

Thanks @mohitrahar for sharing the experience and this means that they are selling damaged inverter to customers and and not as per the specification. it look like Alibaba Supported SCAM . Alibaba Already knows that multiple users have this issue and they will just tell that your evidence is not enough. I believe this from can expose this scam from alibaba - @Will Prowse could you please help us to expose this solar inverter scam of this seller and alibaba

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[Will Prowse]

Thanks @mohitrahar for sharing the experience and this means that they are selling damaged inverter to customers and and not as per the specification. it look like Alibaba Supported SCAM . Alibaba Already knows that multiple users have this issue and they will just tell that your evidence is not enough. I believe this from can expose this scam from alibaba - @Will Prowse could you please help us to expose this solar inverter scam of this seller and alibaba

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That's pretty common on cheaper units. I would not consider this a scam. I think you need to spend more and buy higher quality gear.

 

[TechSree]

That's pretty common on cheaper units. I would not consider this a scam. I think you need to spend more and buy higher quality gear.

The issue is they are not giving the inverter as per the specification and we will know only this after getting the item. Also we both got the item with same error . When we reported the error they acted like this is a mistake from customer side and its not the problem with inverter. Due to this multiple reason I have said it as scam.

 

[caesarv]

That's pretty common on cheaper units. I would not consider this a scam. I think you need to spend more and buy higher quality gear.

I spent over $5k on an EG4 18Kpv and I still get a similar flickering all the time when running off of battery or when running off of solar. I believe this started with the 1E1E firmware update and I am unable to go back to a prior version. I am hoping this is a firmware issue that will be fixed in the next update.

 

[mohitrahar]

That's pretty common on cheaper units. I would not consider this a scam. I think you need to spend more and buy higher quality gear.

Hello dear,
This is not about cheaper unit and all because I know one more seller for Hybrid inverter with same cost on Alibaba seller Name Gootu they provide proper support and best quality products.
Here the only point is on Alibaba platform some sellers are good and some are bad, for those seller who sell defective products why Alibaba supports, because i'm also facing same type of experience two times with same seller for negotiation etc for refund and for first time partial amount paid by Alibaba and around 10% amount paid by seller in this case no impact on seller it's okay second time i order again same product because according to me maybe manufacturing defects in single units then same issue on second product also with same issue no change at all after this i apply for refund because last time i received some partial refund, check this Alibaba response.
This seems Alibaba support sellers only even no action on seller no matter complaint is single or multiple because @TechSree also complaint for same issue flickering issue with same SmartLife app support WIFI card to customers and UserGuide in Box for Solar of things this is third time customer complaints for seller still Alibaba says merchant counterclaims that there is no problem with the product, even i share full video how inverter disturb grid voltage this is not fair this is clear Alibaba doing scam with customers and support sellers. Even if required according to Alibaba policy i also involve authorized department to test product but required full refund as well as action on seller otherwise they are doing same cheating with customers. Please give your feedback. @Will Prowse and DIYSOLARFORUM team members.

 

[TechSree]

For me its clearly a scam since they are sending damaged units to customers and cheating them. Probably an Alibaba supported scam since they are getting multiple complaints and alibaba saying not enough evidence even if things are clear for them