Eakins autofocus microscope 1080P 60FPS SONY IMX 290 Sensor

[Propretor]

Hi, guys. I want to warn you against purchasing an Eakins microscope from the Eakins Microscope Store.
https://aliexpress.ru/item/32867628649.html?gatewayAdapt=glo2rus&sku_id=12000022960952534&spm=a2g0o.order_detail.0.0.77fd4f03HgIJYz
Never buy from this seller. He's a swindler and a liar.
1. Sold a faulty microscope. HDMI connector does not have an image. Checked on two monitors.
2. The FE1.1S chip has pin №20 VDD5 not soldered to the board. And there is no solder under pin №20 on the board. When asked about a ration defect that I discovered the answer I never received from the seller. Whether the leg of the chip should hang in the air or not I still do not know.
3. Instead of a high-quality optical sensor, the Sony IMX 290 sent a cheap IMX 307 sensor. Even in correspondence, he promised to deliver IMX 290.

[Propretor]

The seller did not answer any of my questions. I opened a dispute. Offered a return of goods and money. I refused. The reason is simple. The return was offered in Russian rubles. After certain events in the world, the ruble exchange rate in the Ali store fell 3 times. Given the fixed price of goods in dollars on Ali, I was offered to return exactly a third of the cost of the microscope. Obviously, I refused. Now trying to find the reason that there is no image when connecting the monitor via HDMI.
What is amazing - when connecting the HDMI-VGA converter, there is an image. There is also an image when using an HDMI to USB video capture device.
I have now checked for pin №18 +5 volts. The measurement showed 4.88V by one tester, 4.91V by another. I don't know if this could be the reason (reduced by 0.1V value)? Does anyone have any thoughts about this problem?

[alpher]

Thanks for the warning, I actually had one in my shopping cart there.
Was just about to hit the buy button.

[jfiresto]

The tell for me, that would persuade me to look elsewhere, is the camera's fantastic specifications



Even getting a useful 20 megapixels out of a 1/2.8-inch sensor would be utter fantasy.

[Propretor]

Thanks for the warning, I actually had one in my shopping cart there.
Was just about to hit the buy button.

Glad I helped someone by my misfortune. Here is a discussion of a similar deception of customers by a Chinese seller. I love German and Japanese equipment. But because of poverty, you have to play Chinese roulette.
https://www.youtube.com/watch?v=1jV7Qzr3OQ0&lc=UgzbcIbc-8SFtc3sg-x4AaABAg.9Z3cpDGQuiI9Zi5hos33dQ

[Propretor]

The tell for me, that would persuade me to look elsewhere, is the camera's fantastic specifications
Even getting a useful 20 megapixels out of a 1/2.8-inch sensor would be utter fantasy.

You're wrong. To get a high-quality image, you need as much optical sensor size as possible in millimeters, and less resolution in pixels. Within reasonable limits, of course. 1920 * 1080 quite enough. The larger the physical pixel size, the less noise and the better image quality. This is known to all photographers.

[jfiresto]

That was the trade-off I had in mind when I wrote my apparently overly terse reply. Where did I go wrong?

Be careful buying low end German equipment. The costs of doing business in Germany have risen so much that a lot of it is outsourced to Asia.

[Propretor]

I had another setback. While trying to read the firmware that is stored in Macronix MX25L25645G, erased some blocks. Curious. each time reading data from the chip, the result was more and more FF data within itself. I don't understand how that happened. Now the microscope is not loading. In addition, Macronix MX25L25645G has hardware write protection and I cannot even check the health of what was read for the first time. Does anyone have the opportunity to share firmware for this microscope? Does this firmware depend on the sensor used?

[ygi]

Yes you need a firmware specific to your sensor. Did you use some older ch341a based programmer to read the chip? If true, that's probably why you corrupted (or damaged) the flash chip. Those are well known for being poorly designed and send 5V to the data lines.

[Propretor]

Did you use some older ch341a based programmer to read the chip?

I used XGPro (XGecu TL866II Plus USB High Performance Programmer): http://www.xgecu.com/en/TL866_main.html

[Propretor]

The seller does not make contact. How do I "squeeze" the firmware for my microscope with a IMX307 sensor out of it?

[Propretor]

I do not understand. There is a support site for computer motherboards. It has the ability to download the firmware. I want the same for the microscope I paid a lot of money for. What is strange about my wish?

[Matze]

Why are you thinking about your hdmi problem at the usb 2.0 hub ic? Makes no sense. If it works on other devices, like on adapter or capture card, then the problem is likely your monitor which can't handle the maybe odd timings of the cam.

[infino]

Propretor
How did your search for the firmware turn out ?