Trouble Update Partitioning in Device Tree

Thanks, but nevertheless, the answer is not quite clear(

Let me ask differently

Tell me at what point I'm wrong:

I am trying to boot from QSPI, for this I perform the actions in the following order:

1. I create a project to download from SDMMC, make a complete file system in tar.gz format, download succeeds. The full file system gives access to the QSPI and commands such as: "flashcp / mtd_debug write / flash_erase" are available to me
2. I create a project to boot from QSPI, make a minimal file system in jffs2 format, change the boot source in the BSP properties, and so on.
3. I copy the project files from pt. 2 to the memory card in a separate directory
3. I boot from the SDMMC project from pt. 1, I start to write the project files from pt. 2 to QSPI
4. All these processes end successfully
5. I switch the BOOTSEL jumper to load QSPI, reset the power and nothing happens ((
p.s. without an SDMMC memory card, I also cannot get into the U-boot console, I also cannot understand why

maybe there is some nuance that I missed, but I do not see it

grateful for any help!)