TouchBar not showing up

[bhash2797]

I'm using a 2019 13" MBP 16gb ram , 256gb and catalina 10.15.4.
The touchbar does not show up at all , even after resetting the SMC.
I'm getting constant panics every 2 minutes, to the point I can't even use the laptop.
The laptop crashes in safe mode , as well as in recovery mode , and the hardware diagnostics give an all clear. Weird.
Does anyone know what com.apple.dfrd is?

panic(cpu 0 caller 0xfffffff0263e6058): userspace watchdog timeout: no successful checkins from com.apple.dfrd since load
service: com.apple.dfrd, no successful checkins since load (180 seconds ago)
service: com.apple.UserEventAgent-System, total successful checkins since load (180 seconds ago): 19, last successful checkin: 0 seconds ago
service: com.apple.bridgeaudiod, total successful checkins since load (180 seconds ago): 19, last successful checkin: 0 seconds ago
service: com.apple.logd, total successful checkins since load (180 seconds ago): 19, last successful checkin: 0 seconds ago

Debugger message: panic
Memory ID: 0xff
OS version: 17P4281
macOS version: Not set
Kernel version: Darwin Kernel Version 19.4.0: Mon Mar 2 20:38:56 PST 2020; root:xnu-6153.101.6~2/RELEASE_ARM64_T8010
Kernel UUID: 3695E9D9-323E-350E-9A6E-65819BE397D7
iBoot version: iBoot-5540.105.2
secure boot?: YES
x86 EFI Boot State: 0x16
x86 System State: 0x3
x86 Power State: 0x6
x86 Shutdown Cause: 0x5
x86 Previous Power Transitions: 0x60400040506
PCIeUp link state: 0x16892700
Paniclog version: 13
Kernel slide: 0x000000001df74000
Kernel text base: 0xfffffff024f78000
mach_absolute_time: 0x10d050cbd
Epoch Time: sec usec
Boot : 0x5eab7804 0x000b6259
Sleep : 0x00000000 0x00000000
Wake : 0x00000000 0x00000000
Calendar: 0x5eab78bc 0x00093145

Total cpu_usage: 9977551
Thread task pri cpu_usage
0xffffffe00171a4f8 watchdogd 97 0
0xffffffe00171af88 fseventsd 31 0
0xffffffe0018c0a90 watchdogd 31 0
0xffffffe000b6ba18 kernel_task 0 4040242
0xffffffe00086d520 kernel_task 0 2808746

Panicked task 0xffffffe001640800: 221 pages, 3 threads: pid 33: watchdogd
Panicked thread: 0xffffffe00171a4f8, backtrace: 0xffffffe010bcb000, tid: 749
lr: 0xfffffff02583c764 fp: 0xffffffe010bcb040
lr: 0xfffffff02583c5c0 fp: 0xffffffe010bcb0b0
lr: 0xfffffff025956e7c fp: 0xffffffe010bcb160
lr: 0xfffffff025e0562c fp: 0xffffffe010bcb170
lr: 0xfffffff02583bf28 fp: 0xffffffe010bcb4e0
lr: 0xfffffff02583c280 fp: 0xffffffe010bcb530
lr: 0xfffffff026672934 fp: 0xffffffe010bcb550
lr: 0xfffffff0263e6058 fp: 0xffffffe010bcb570
lr: 0xfffffff0263e5d94 fp: 0xffffffe010bcb590
lr: 0xfffffff025d99fc0 fp: 0xffffffe010bcb5f0
lr: 0xfffffff0263e52e8 fp: 0xffffffe010bcb6d0
lr: 0xfffffff025da300c fp: 0xffffffe010bcb860
lr: 0xfffffff0259268d0 fp: 0xffffffe010bcb980
lr: 0xfffffff025841f24 fp: 0xffffffe010bcb9e0
lr: 0xfffffff025817cf0 fp: 0xffffffe010bcba60
lr: 0xfffffff02582fc7c fp: 0xffffffe010bcbb10
lr: 0xfffffff02594d760 fp: 0xffffffe010bcbbd0
lr: 0xfffffff025956fd4 fp: 0xffffffe010bcbc80
lr: 0xfffffff025e0562c fp: 0xffffffe010bcbc90
lr: 0x00000001a04ff198 fp: 0x0000000000000000

 

[Taz Mangus]

Deleted

 

[Czo]

Try to restore the T2 firmware: https://help.apple.com/configurator/mac/2.7.1/#/apd0020c3dc2

 

[Jojonut]

Sorry for the lack of an answer, I actually have the same problem! Have you found a solution?

I've read elsewhere that dfrd relates to the touchbar.

For background, I bought the chassis of a MacBook Pro 2019 13 inch which only had a tested screen, everything else was untested (including the touchbar). I then put in a functioning logic board and was able to get it to boot with the caveat of it shutting off every 180 seconds, or 3 minutes. During the time that it's on the touchbar doesn't function. There seems to be a dent near the touchbar and I suppose a drop in its past could have affected the functionality.

I thought it might be a software issue so I wiped the SSD only to realize that it cannot reinstall an OS due to it restarting every 3 minutes. This means I'm stuck without an OS until I can get this issue solved. Running diagnostics I get APD000 meaning no detected hardware issues so I'm at a lost. I took apart the MacBook as well, examining the different parts but I didn't notice any damages.

If it's true that the dfrd relates to the touchbar then does yours also not work? I read that others with the same problem replaced the top case (the keyboard, touchbar, and top assembly) through apple and had their issue resolved.

I hope you have an answer that doesn't involve sending it to apple as I doubt they'd repair my frankensteined macbook.

 

[ivametal]

Exactly the same problem happened with me today.
Touchbar is not working, mac crashes every 3 minutes in recovery/safe mode, diagnostics show zero problems/
Any updates?

 

[Jojonut]

Exactly the same problem happened with me today.
Touchbar is not working, mac crashes every 3 minutes in recovery/safe mode, diagnostics show zero problems/
Any updates?

Unfortunately the fix was to get a new top case. For me the touch bae was broken and it seems to be the same for you.

 

[ivametal]

Unfortunately the fix was to get a new top case. For me the touch bae was broken and it seems to be the same for you.

By the 'top case' you mean touchbar replacing or the whole motherboard?

 

[Jojonut]

By the 'top case' you mean touchbar replacing or the whole motherboard?

Well, neither. The top case is basically the shell that houses the touch bar. A full on touch bar replacement is a really messy and complicated procedure. Most people replace their whole top case in favor. If you search up top case with the model number of your mac on eBay you’ll find it.

 

[ivametal]

Well, neither. The top case is basically the shell that houses the touch bar. A full on touch bar replacement is a really messy and complicated procedure. Most people replace their whole top case in favor. If you search up top case with the model number of your mac on eBay you’ll find it.

Went to the service, asked them to disconnect touchbar.
Now my macbook works well (without the touchbar).

 

[Jojonut]

Went to the service, asked them to disconnect touchbar.
Now my macbook works well (without the touchbar).

Very interesting solution! I didn’t even know that was an option. Do you know how they did it by chance?

 

[ivametal]

Very interesting solution! I didn’t even know that was an option. Do you know how they did it by chance?

Just disconnect the touchbar from the motherboard and thats all.