This model is BIOS only -- it does not support EFI at all. 
I am curious if the device is capable of running in UEFI mode. Have there been any error messages encountered while attempting to do so? Additionally, I am interested in modifying the logo displayed during boot. Furthermore, I am planning on changing my disk from MBR to GPT to allocate more partitions. I would be extremely grateful if you could assist me with this matter.
Can Dell Inspiron N4050 mainboard (CN-07NMC8) run UEFI mode?