Hello. I've got a serious problem with memory space of my htc 8s phone so i would like to update it to windows 8.1 in order to be able to get advantage of micro sd card. The only way to achieve it till now is to update my phone through preview for developers. What are the possible risks that i have to take if i decide to update it? I've heard that there are interesting new features, but some bugs and problems as well, for example in some apps like viber and whatsapp. Is there anybody who knows something about them? I wouldnt like to have an updated phone with many problems... And finally is there any info about official update in htc 8s? thanks:smile: