Develop Bugs

I need help pls

Hi everyone I have this head unit and I want to upgrade Android version what shall I start from
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Up

android 7.1 -> 9.0

Pls help how to install android 9. Should I instal first 8.0? OTA not shows me any upgrade :/
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https://zapodaj.net/f3a325ebad1cc.png.html

thanks

Welcome everyone
I am Othman from Algeria
My phone has not received any updates since 01 Sep 2019
Please, where is the problem?
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"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
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Software update delay

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"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
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"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
Please can someone tell me why I haven't received new security patch or android 12 on this my note 10+ for a long time now. The picture is my software version I'm currently running.

Question New update today (Security patch updated to May 1st 2023) (OneUI 5.1)

attached update log
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"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
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"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}