There is not much information about this unit [qc4250, build id: SM4250_00034_V001] in the internet, so far the only place where the unit's build version was mentioned is this portal. So I decided to post here all information I have and the links to upgrade packages.Spoiler: A. Qualcomm full firmware update (Provided by the unit's support)A. Qualcomm full firmware update(PGM.zip. This upgrade is needed only if your unit...Read more