Sleep Wake failure in EFI Failure code:: 0xffffffff 0x0000001f Please IGNORE the below stackshot ================================================================ Date/Time: 2020-05-14 14:23:47 +0300 OS Version: ??? ??? (Build ???) Architecture: x86_64 Report Version: 29 Data Source: Stackshots Shared Cache: 0xca5a000 36ED8CC4-75A7-32CF-AA19-E9D46B6C31A9 Event: Sleep Wake Failure Duration: 0.00s Steps: 1 Boot args: chunklist-security-epoch=0 -chunklist-no-rev2-dev Time Awake Since Boot: 17s Process: swd [365] Architecture: x86_64 Footprint: 584 KB Start time: 2020-05-14 14:23:47 +0300 End time: 2020-05-14 14:23:47 +0300 Num samples: 1 (1) Thread 0xbed 1 sample (1) priority 4 (base 4) 1 start + 1 (libdyld.dylib + 109769) [0x7fff739c8cc9] 1 1 ??? [0x108ba8454] 1 1 ??? [0x108ba81dd] 1 1 __stack_snapshot_with_config + 10 (libsystem_kernel.dylib + 135862) [0x7fff73b2a2b6] 1 *1 ??? [0xffffff80002c8206] 1 *1 ??? [0xffffff80009875f7] 1 *1 ??? [0xffffff80008a0001] 1 *1 ??? [0xffffff80002eb9e7] (running) 1 Binary Images: 0x7fff739ae000 - 0x7fff739e4fff libdyld.dylib (750.5) /usr/lib/system/libdyld.dylib 0x7fff73b09000 - 0x7fff73b35fff libsystem_kernel.dylib (6153.101.6) /usr/lib/system/libsystem_kernel.dylib Model: MacBookPro16,1, BootROM 1037.100.362.0.0 (iBridge: 17.16.14281.0.0,0), 8 processors, 8-Core Intel Core i9, 2.4 GHz, 32 GB, SMC Graphics: kHW_IntelUHDGraphics630Item, Intel UHD Graphics 630, spdisplays_builtin Graphics: kHW_AMDRadeonPro5500MItem, AMD Radeon Pro 5500M, spdisplays_pcie_device, 4 GB Memory Module: BANK 0/ChannelA-DIMM0, 16 GB, DDR4, 2667 MHz, SK Hynix, - Memory Module: BANK 2/ChannelB-DIMM0, 16 GB, DDR4, 2667 MHz, SK Hynix, - AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x7BF), wl0: Feb 28 2020 15:31:53 version 9.30.357.35.32.5.47 FWID 01-29ff5c69 Bluetooth: Version 7.0.4f6, 3 services, 27 devices, 1 incoming serial ports Network Service: Wi-Fi, AirPort, en0 USB Device: USB 3.1 Bus USB Device: Apple T2 Bus USB Device: Composite Device USB Device: Touch Bar Backlight USB Device: Touch Bar Display USB Device: Apple Internal Keyboard / Trackpad USB Device: Headset USB Device: Ambient Light Sensor USB Device: FaceTime HD Camera (Built-in) USB Device: Apple T2 Controller Thunderbolt Bus: MacBook Pro, Apple Inc., 55.3 Thunderbolt Bus: MacBook Pro, Apple Inc., 55.3