You can find the flash files and tools on these reputable GSM archive sites:
The official service software used to recover phones from a "bootloop" or soft-brick state. Download Resources You can find the flash files and tools
Approximately 504 MB to 594 MB depending on the regional variant Core Firmware Details Device Model: Nokia XL Dual
For the , the latest official stock firmware and the tools required to flash it are available through various GSM community resources. Because there are two hardware versions (V1 and V2) of this device, it is critical to identify your specific version before flashing to avoid "bricking" the phone. Core Firmware Details Device Model: Nokia XL Dual SIM (RM-1030) You can find the flash files and tools
Frequently cited as the primary tool for this specific model.
Are you trying to or just seeking to upgrade the software version? Nokia XL RM-1030 Stock Firmware ROM (Flash File)