m15 R5, BIOS 1.19.0 has caused Radeon Display adapter failure

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Per the article you listed, did you try =

Recover the laptop by resetting the Real Time Clock (RTC)

After connecting the m15 R5 to its AC power supply and then connecting to an external monitor via the HDMI out port or USB-C/DP port, recover the default BIOS using the BIOS recovery screen. Could you post a video of this showing the external monitor screens?

@DELL-Chris M​ 

Hi Chris M,

Sorry for the delayed reply. I have shared my service tag via the chat. I have applied the RTC reset previously (per above) using the guide in the attached link. Initially my M15 R5 had nil operation. After the RTC reset the error became the 2 RED 7 BLUE. At this point the PC operates, but only via external monitor.

On your last request - "Could you post a video of this showing the external monitor screens?" I can do this, but there isnt much to see. There is no display at all during POST. The current boot process is:

1. Power button pressed

2. No display on either monitor during POST

3.Once the PC gets to the Windows logon the ext monitor displays the windows logon. There is no display on either monitor before this point.

The PC is running only on the Nvidia GPU in Windows. Device manager shows an error "Windows has stopped this device because it has reported problems"

Let me know if you need any further information.

Regards

Stephen

NOTE: I have attempted to resolve this issue with the BIOS update 1.20.0 (released June 15).  This BIOS update has not resolved the fault. After the update the fault is exactly the same.

I have this exact issue as of yesterday, I'm now on 1.20.0 after accepting some recommended auto updates (don't know what I was on previously as I never intentionally go out of my way to update a BIOS). I noticed that during the update process the fans went into overdrive (never heard it that loud before) then the screen went black. After it rebooted, I noticed the 2 RED 7 BLUE code flashing which after some research and coming across this post refers to "Display failure - SBIOS message".  The only way I can see anything is if I plug in an external display.

I've attempted the RTC method but considering the laptop screen itself won't work I don't know whether there is a way to tell if it actually did anything. I just saw that the alien power button flashed red a few times. After that I attempted to follow the article linked above but as per the OP, the BIOS tool won't let you rollback. 

I can't try CTRL+ESC method since I can't see a thing on the screen to attempt the BIOS recovery.

Considering I've seen a couple other posts of other people encountering the same issue after a BIOS update it is highly unlikely that we all suffered hardware failures straight after. If so then it would be due to the BIOS itself which is a problem which DELL should be addressing.

@refsmmat were you able to resolve this issue?

@drustar​ I also have this same issue. Can only see anything through an external display. tried to uninstall the update too but no luck

@drustar​ 

Hi drustar,

Im afraid not.

I PM'ed ChrisM from dELL who posted above, but his advice was to do an 'out of warranty' repair - IE pay to have it fixed. Sorry, no answer yet but I am still working on a solution.

ALSO - As our laptops can still do BIOS updates (albeit 'blind' when they reboot) we are able to implement any BIOS fix should it be developed. I think it is a matter of the 'fallout' from the 1.19.0 BIOS making its way back to the teams that develop the BIOS updates.

Regards Stephen

@DELL-Nat M​ This doesn't work. Thanks