2015 · Pour ceux qui on un htc desire 820U (dual sim) et 820N (single sim) sous lollipop (firmware) Voila si ça peux aider quelqu'un Voici le lien :. 10 avr. 2015 · For all those who are in search of stock rom, i have found dis website which has a decent number of roms for different models of Desire 820 Link : http://www.romzj.com/list/htc_d820u.htm Its a chinese website so feel free to use the translator.