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Petr74

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  1. Please help me detect the correct DSP processor

    Petr74 replied to Petr74's topic in Inverters
    Solved, DSP is 28066, flashed firmware to 272.62, performance in bad weather increased rapidly. Many thanks to the authors of the upgrade.

  2. Please help me detect the correct DSP processor

    Petr74 posted a topic in Inverters
    Hello, I´m new member here. I have an Axpert MAX 8000 purchased 2 years ago, I want to upgrade the firmware but I don't want to brick the inverter. The attached photos show a label on the side of the inverter, a small label apparently with the date of manufacture, a picture from the Watch Power application, where the current firmware type (72.03) is shown, and a photo of the PCB with the DSP processor. I'm not at all sure if this is a 2809 or 28066 processor.; Please advise me on a working firmware that fixes the MPPT stuck at 90V error in low light (especially in the morning) and the premature float bug. I would be grateful for any information or link to a solution to the problem. Thanks in advance Petr

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