g level: 4, debug flags: 00000000 applebcmwlan:init():applebcmwlan-84 feb 10 2011 apple bcmwlan: init:starting with debug level:4,debug flags:00000000 [WMR:ERR] NAND format invalid( mismatch, corrupt, read error or blank NANd device) [WMR:ERR]boolsignaturefound false book productionformatverified true nsig 0x0 AND:NAND initialisation failed due to format mismatch or unitialised NAND AND: please reboot with reformatting enabled. APPLENANDLegacyFTL:start: AND init failed handleIOKitBusyWatchdogTimeout:Error, no successful firmware download after 6000 ms! giving up
Did you try to use another PC/LAptop? I have some issue with 1 of my laptop, I cannot upgrade my phone via 1 laptop, after i switch another laptop, all working fine