The key takeaway from Samsung Electronics' latest earnings report, which confirmed its first annual earnings decline in three years in 2014, is the South Korean technology giant needs to do something "radical" to turn around its fortunes, say analysts.

Samsung's profit slumped 36 percent from a year earlier in the fourth quarter to 5.3 trillion won ($4.88 billion) as smartphone sales continued to come under pressure amid fierce competition from Apple and low-cost Chinese handset makers.