Ericsson’s slow crawl back to financial health continued in its fourth quarter, as CEO Börje Ekholm said the results justified his decision to pull the firm back from his predecessor’s strategy of diversifying into new markets. Losses for Q418 fell year-on-year and the Swedish company reported its first full year of organic sales growth since 2013. Its headline figures were a net loss of $723.3m, down sharply on the year-ago loss of about $2bn; while sales were up 10% year-on-year to almost $7.1bn. For the full year, sales revenues grew by 3% in 2018, to SEK205.4bn ($22.6bn). The largest division, Networks, increased its sales by 12%, and the faster recovery in the core business may encourage Ericsson to divest even…