Here's my log. Seems like a baseband issue for me too:
[14:44:52.7449] <Restore Device 0x60000013b260>: operation 19 progress 100
[14:44:52.9155] amai: AMAuthInstallBasebandHandleUpdaterStatus: commandAccepted: NO
[14:44:52.9162] amai: AMAuthInstallBasebandHandleUpdaterStatus: outputDict: <CFBasicHash 0x618000474100 [0x7fff7f4c6f00]>{type = mutable dict, count = 9,
[14:44:52.9162] entries =>
[14:44:52.9162] 0 : <CFString 0x61800043b780 [0x7fff7f4c6f00]>{contents = "CertHash"} = <CFData 0x6180002512e0 [0x7fff7f4c6f00]>{length = 32, capacity = 32, bytes = 0x<<<<<<<<ICCID>>>>>>>924d38ecceff ... <<<<<MEID>>>>>18}
[14:44:52.9162] 1 : <CFString 0x61800042e480 [0x7fff7f4c6f00]>{contents = "CertID"} = <CFNumber 0xd3da574237 [0x7fff7f4c6f00]>{value = +3554301762, type = kCFNumberSInt64Type}
[14:44:52.9162] 2 : <CFString 0x61800042b220 [0x7fff7f4c6f00]>{contents = "ChipID"} = <CFNumber 0x6f20e137 [0x7fff7f4c6f00]>{value = +7282913, type = kCFNumberSInt64Type}
[14:44:52.9162] 3 : <CFString 0x61800043a700 [0x7fff7f4c6f00]>{contents = "FusingStatus"} = <CFNumber 0x337 [0x7fff7f4c6f00]>{value = +3, type = kCFNumberSInt64Type}
[14:44:52.9162] 4 : <CFString 0x61800042a400 [0x7fff7f4c6f00]>{contents = "Nonce"} = <CFData 0x618000256e00 [0x7fff7f4c6f00]>{length = 20, capacity = 20, bytes = 0x<<<<<<<<<<<<<<<<<<UDID>>>>>>>>>>>>>>>>>>}
[14:44:52.9162] 5 : <CFString 0x61800062a100 [0x7fff7f4c6f00]>{contents = "fused"} = <CFBoolean 0x7fff7f4c77f0 [0x7fff7f4c6f00]>{value = true}
[14:44:52.9162] 6 : <CFString 0x618000453bc0 [0x7fff7f4c6f00]>{contents = "attemptedToFuse"} = <CFBoolean 0x7fff7f4c7800 [0x7fff7f4c6f00]>{value = false}
[14:44:52.9162] 10 : <CFString 0x61800062ada0 [0x7fff7f4c6f00]>{contents = "done"} = <CFBoolean 0x7fff7f4c77f0 [0x7fff7f4c6f00]>{value = true}
[14:44:52.9162] 11 : <CFString 0x61800042d880 [0x7fff7f4c6f00]>{contents = "ChipSerialNo" XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXX
[14:44:52.9162] }
[14:44:52.9162]
[14:44:52.9732] device returned CFError with code -1
[14:44:52.9744] dumping CFError returned by restored:
[14:44:52.9754] CFError domain:AMRestoreErrorDomain code:-1 description:failed to update device firmware
[14:44:52.9761] CFError domain:AMRestoreErrorDomain code:-1 description:ramrod firmware update failed
[14:44:52.9767] CFError domain:RamrodErrorDomain code:1004 description:update_baseband: failed to perform next stage
[14:44:52.9774] CFError domain:BBUpdater code:3 description:Failed creating a communication transport to baseband.
[14:44:52.9781] Sending acknowledgement that final status was received
[14:44:53.1154] Restore completed, status:3
[14:44:53.1154] Failure Description:
[14:44:53.1154] Depth:0 Error:AMRestorePerformRestoreModeRestoreWithError failed with error: -1
[14:44:53.1154] Depth:1 Error:The operation couldn’t be completed. (AMRestoreErrorDomain error -1 - Failed to handle message type StatusMsg)
[14:44:53.1154] Depth:2 Error:The operation couldn’t be completed. (AMRestoreErrorDomain error -1 - failed to update device firmware)
[14:44:53.1154] Depth:3 Error:The operation couldn’t be completed. (AMRestoreErrorDomain error -1 - ramrod firmware update failed)
[14:44:53.1154] Depth:4 Error:The operation couldn’t be completed. (RamrodErrorDomain error 1004 - update_baseband: failed to perform next stage)
[14:44:53.1154] Depth:5 Error:The operation couldn’t be completed. (BBUpdater error 3 - Failed creating a communication transport to baseband.)