Help whit update Cold CPU BOOTLOADER by Jlink tool.

[itzek]

Hello admin, 
I'm trying to update a version in my colb to get tuya support according to the following link: 
https://www.kincony.com/forum/showthread.php?tid=2656

I use the j-link tool and it can't connect to the component. I installed the driver and connected everything according to the manual, what am I doing wrong?  I am attaching pictures of the processor and the error

[admin]

GD32 chip is not enough memory for running Tuya, if you want to use tuya, need replace CPU with AT32F403AVGT7 chip. Then use AT-link usb cable to download firmware.

[itzek]

How do I replace the processor? Buy a processor and weld it
or
i need to buy a new colb

[admin]

i suggest you buy a new KC868-COLB, replace it really cost time.