Sleep Wake failure in EFI Failure code:: 0xffffffff 0x0000001f Please IGNORE the below stackshot ================================================================ Date/Time: 2020-05-29 21:09:11 -0400 OS Version: ??? ??? (Build ???) Architecture: x86_64 Report Version: 29 Data Source: Stackshots Shared Cache: 0x7c14000 57521E0E-123A-3FC6-964D-077A5731C89C Event: Sleep Wake Failure Duration: 0.00s Steps: 1 Boot args: chunklist-security-epoch=0 -chunklist-no-rev2-dev Time Awake Since Boot: 18s Process: swd [377] Architecture: x86_64 Footprint: 472 KB Start time: 2020-05-29 21:09:11 -0400 End time: 2020-05-29 21:09:11 -0400 Num samples: 1 (1) Thread 0xc15 1 sample (1) priority 4 (base 4) 1 start + 1 (libdyld.dylib + 109769) [0x7fff6ebc4cc9] 1 1 ??? [0x10fdf2454] 1 1 ??? [0x10fdf21dd] 1 1 __stack_snapshot_with_config + 10 (libsystem_kernel.dylib + 135862) [0x7fff6ed262b6] 1 *1 ??? [0xffffff80002c6206] 1 *1 ??? [0xffffff80009870b7] 1 *1 ??? [0xffffff800089f9c1] 1 *1 ??? [0xffffff80002e99e7] (running) 1 Binary Images: 0x7fff6ebaa000 - 0x7fff6ebe0fff libdyld.dylib (750.5) <7E711A46-5E4D-393C-AEA6-440E2A5CCD0C> /usr/lib/system/libdyld.dylib 0x7fff6ed05000 - 0x7fff6ed31fff libsystem_kernel.dylib (6153.121.1) <84D09AE3-2DA8-3F6D-ACEC-DC4990B1A2FF> /usr/lib/system/libsystem_kernel.dylib Model: MacBookPro16,1, BootROM 1037.120.87.0.0 (iBridge: 17.16.15290.0.0,0), 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, 8 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: Apr 7 2020 13:09:12 version 9.30.357.41.32.5.49 FWID 01-617711e7 Bluetooth: Version 7.0.5f6, 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