Do not guess. Here is the exact method to verify:
For engineers and repair technicians, the DS 126 741 maps to a specific bill of materials. Here is what is inside: canon ds 126 741
Repair note: If you need a replacement main circuit board, searching for "Canon DS 126 741 main PCB" is more accurate than searching for "Rebel T7 logic board." Many repair shops list parts by DS code to avoid mixing them with T7i (DS 126 688) parts. Do not guess
Cause: The DS 126 741 uses a legacy Wi-Fi module that struggles with 5GHz networks. It only supports 2.4GHz. Solution: Ensure your smartphone or router is broadcasting a 2.4GHz SSID. Do not use WPA3 encryption; use WPA2-Personal. Repair note: If you need a replacement main