Flashing Tuya Firmware to BK7231N Mini Smart Switch Originally on eWeLink

>>21708115
Good afternoon. There are two identical switch devices. The chip is BK7231N. Mini Smast Switch. I purchased them, but the seller sent them so that one works with Tuy and the other with Ewelink. I need two Tuya devices. I know how to solder parts and I also use UART. However, I am not a developer, but I can follow the instructions. I believe that I need to take the firmware from the Tuya device and flash it into the Ewelink device. Am I correct?If you can provide links on how to reflash the device from Ewelink to Tuya, I would appreciate it. My email is brizx66(_at_)gmail.com

>>21708348
https://docs.libretiny.eu/docs/flashing/tools/ltchiptool/
Here's what I found. I think this tool is suitable for me...But what about the MAC address? after flashing, there will be two identical devices...??

this tool can read/write entire flash too for both of those devices https://github.com/openshwprojects/BK7231GUIFlashTool

I've not seen identical devices before that can be eWeLink or Tuya I don't think. If they are truly identical and fully work the same then I guess they would have the same mac if you cloned the flash to the other. You can change the mac when in OpenBeken though.

>>21709368
Oh! I've seen this tool. What actions? Suppose- 1. I make a backup with Tuya and with Ewelink/// 2.I overwrite the backup of the Tuya dump on Ewelink...The question is, how do I change the MAC address to the original one?Do you understand the original task? I don't need to unlink devices from the Tuya cloud. I need to replace the Ewelink firmware with Tuya firmware.