SSD not booting after dual-boot Linux installation: No bootable device, UEFI Boot Mode

I’m having an issue with my SSD after attempting to install Linux as a second OS alongside Windows 11. Here’s what I did:

1. My SSD had Windows 11 installed. I created a new partition to install Linux.
2. During the Linux installation, I partitioned the disk as follows:
   • Created a 10 GB partition for the root filesystem (/).
   • Allocated the remaining space for /home.
3. During partitioning, I modified the EFI bootloader, setting the mount point for /boot.
4. For the root filesystem partition (/), I changed the filesystem type to Btrfs. I did the same for the /home partition.
5. After completing the installation and rebooting, I get the error: No bootable device.
6. In the BIOS, the SSD is detected, and the boot mode is set to UEFI.

What i’ve try:

• Verified that the disk is visible in the BIOS.
• Booted from a Linux LiveCD and confirmed that the disk and partitions are visible using lsblk and fdisk.
• I also tried to create a bootable USB drive with Windows to attempt installing Windows 11, but the Windows 11 installer was unable to detect my SSD.

And so:
How can I restore the bootloader and make the system bootable again? Is it possible to do this without data loss? What steps should I follow?