Assuming you have a bricked Lumia 925 (RM-892) and you found a clean .ffu firmware file:
Users often wanted to remove carrier splash screens and pre-installed apps by flashing a generic "unbranded" firmware. navifirm plus v17 2rar
------WebKitFormBoundaryXYZ Content-Disposition: form-data; name="file1"; filename="ProjectDocs.part1.rar" Content-Type: application/octet-stream Assuming you have a bricked Lumia 925 (RM-892)
Browse the list of phones provided by the local cache. If your model isn't listed, you may need a newer version like NaviFirm Plus 3.2 . ------WebKitFormBoundaryXYZ Content-Disposition: form-data
<binary data> ------WebKitFormBoundaryXYZ Content-Disposition: form-data; name="file4"; filename="ProjectDocs.part4.rar" Content-Type: application/octet-stream