ios8 - iOS firmware incompatible with my iPad 2 GSM -

ios8 - iOS firmware incompatible with my iPad 2 GSM -

i have ipad 2 gsm (know cus has sim) , apple developer. i've created app in swift , need test it. downloaded file called 'ipad3,1_8.0_12a4297e_restore.ipsw' , alt/option clicked restore button , selected ipsw. displayed 'the ipad not compatible firmware file' fixes? i'm trying redownload.

if have ipad2, not compatible ipad3 restore file. if not see ipad2 restore file, ipad2 not upgradable ios8.

edit: see restore file ipad2, create sure downloading right file checking number on of ipad , making sure matches download file number.

ios8