No network signal - how to know is gsm Radio dead in hardware or it is software issue

I have OnePlus One with OxygenOS now, but gsm wasn't working under CM12 either, so I clean installed Oxygen and it didn't resolve issue.

In log I have :
D/RILJ ( 1523): [3904]> QUERY_AVAILABLE_NETWORKS [SUB0]
D/RILC ( 250): SOCKET RIL_SOCKET_1 REQUEST: QUERY_AVAILABLE_NETWORKS length
:8
D/RILC ( 250): RequestComplete, RIL_SOCKET_1
E/RILC ( 250): Send Response to RIL_SOCKET_1
D/RilRequest( 1523): [3904]< QUERY_AVAILABLE_NETWORKS error: com.android.intern
al.telephony.CommandException: GENERIC_FAILURE ret=
*********************
D/NetworkSetting( 1523): EVENT_NETWORK_DATA_MANAGER_DONE: 1
V/QC_RIL_OEM_HOOK( 1523): sendRilOemHookMsg: Outgoing Data is 514f454d484f4f4b1200080000000000
D/QcrilMsgTunnelIfaceManager( 2776): handleMessage what = 1
D/QcrilMsgTunnelSocket( 2776): [1000] > OEM_HOOK_RAW[514f454d484f4f4b1200080000000000]
D/PowerManagerService( 833): acquireWakeLockInternal: lock=562127469, flags=0x1, tag="QcrilMsgTunnelSocket", ws=null, uid=1001, pid=2776
D/QcrilMsgTunnelSocket( 2776): readRilMessage: Buffer = [B@a57e87c HexData = [00000000e803000002000000ffffffff]
D/QcrilMsgTunnelSocket( 2776): Rcvd SOLICITED response with 12 bytes data for SUB0
D/QcRilRequest( 2776): [1000] < OEM_HOOK_RAW error: com.android.internal.telephony.CommandException: GENERIC_FAILURE


I also have this when trying to click "TURN RADIO ON" in service menu (*#*#4636#*#*) :

D/GsmSST ( 1523): [GsmSST] mDeviceShuttingDown = false
D/GsmSST ( 1523): [GsmSST] mDesiredPowerState = true
D/GsmSST ( 1523): [GsmSST] getRadioState = RADIO_OFF
D/GsmSST ( 1523): [GsmSST] mPowerOffDelayNeed = true
D/GsmSST ( 1523): [GsmSST] mAlarmSwitch = false
D/RILJ ( 1523): [4127]> RADIO_POWER on [SUB0]
D/RILC ( 250): SOCKET RIL_SOCKET_1 REQUEST: RADIO_POWER length:16
D/RILC ( 250): RequestComplete, RIL_SOCKET_1
E/RILC ( 250): Send Response to RIL_SOCKET_1
D/RilRequest( 1523): [4127]< RADIO_POWER error: com.android.internal.telephony.C
ommandException: GENERIC_FAILURE ret=