Is it possible to change the firmware for Chinese mechanics Anne Pro 2 (Obins)?

Question

Do it yourself

Good day.
I decided to join mechanical keyboardists, read and looked at all sorts of reviews on the Internet and realized that there is nothing better than Anne Pro 2 to start in this topic. Bought, turned on, work. OK. I ordered it on AliExpress, in a trusted store (orders / reviews at a high level), when the discounts began. Everything came ideally 23 days before St. Petersburg.
My config (where I tried to connect and configure the keyboard):
1. MacBook Pro (early 2015) with macOS X 10.14.5 installed;
2. PC with Windows 10 x64 installed (with the latest updates, litter);
Downloaded Obinslab Starter for Mac and Windows (version 1.0.11). I unpacked it, took it out of the box, connected the keyboard via the supplied USB cable. The first test was done on a MacBook.
The keyboard came to life, lit up with the default RGB backlight (with overflows). Backlight modes - switched through the combination FN2 + 9 (I studied the manual before connecting).
Also, the program immediately identified it and offered to change the firmware (from the box it was 1.12.6) to the latest one (1.12.8). Agreed, reflashed and ... that's it, the backlight is cut off and does not turn on anymore! It doesn’t respond to the FN2 + 9 combination :( I

thought that the firmware might have demolished the default modes and you just need to save these presets on the keyboard again. I went to the Light Group settings, selected the Default preset , selected the Cyan mode in the Light List and clicked on Preview- everything works fine, Anne Pro 2 lit up in the selected backlight preset.

Moreover, the backlight intensity adjustment works normally (FN2 + 0, FN2 + minus, FN2 + plus).

I press "Apply", the program shows "Applied Successfully":

I try to switch the backlight mode (FN2 + 9), but it does not work.
But that's not all! The program freezes when I try to Apply for the Mac keyboard layout (the default preset in the settings).

OK. I loaded the keyboard in recovery mode (pull out USB, hold ESC and insert USB back) and tried to reset it to the previous firmware (which was 1.12.6 when I pulled it out of the box) - but nothing has changed, exactly the same behavior!
That is, I follow this algorithm:
1. Connect the keyboard via USB
2. I go to the Obinslab Starter program
3. I select the ANNE PRO 2 keyboard from the list
4. I go to the section with the keyboard icon (Keyboard layouts)
5. I choose reset Mac
6. I click Apply
Next, the program freezes (nothing can be switched / done in it), but it is active (in monitoring processes, the percentage and memory eats decently). At the same time, the keyboard is disconnected from the USB port (perhaps it switches to some mode for flashing settings).
I wait like that for 10-15 minutes. No reaction. I complete the program process, I plug USB.

Exactly the same behavior on PC Windows 10 x64.

Result:
1. No settings were applied
2. The layout remained the same (default, Win)
3. Backlight presets do not work (FN2 + 9)
4. Tap mode (when the right Shift and the bottom three buttons work like normal keyboard arrows when pressed quickly ) doesn't work either.

In short, the complete feeling that the Obinslab Starter program just reset the settings and did nothing, after which it hung and cut off the keyboard from the USB :(

If anyone can suggest a solution with the current firmware and / or a way to flash it to some custom / other firmware (so that you can do key binding and set up RGB backlighting) - I will be very grateful!
PS wrote to the support of Obins developers and the seller on Ali - they unanimously say that they need to upgrade to the latest firmware version (1.12. same!