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CDX22
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Black Screen after updating BIOS

HP Recommended
HP Notebook 14-ck102tu 5EA35PA#UUF
Microsoft Windows 10 (64-bit)

Hey. So recently I've been experiencing some minor issues with my laptop like the battery icon disappearing everytime I boot up or LED indicators not turning on. So stupid me thought it was a good idea to update the BIOS. I went to Device Manager and looked for Firmware and updated it there. It downloaded, restarted the computer and it brought me to the BIOS update confirmation at bootup. It seems to have went smoothly and finished without errors.

 

Skip to about an hour later and Im still staring at a black screen. I tried the bios recovery combination by pressing Windows + B and holding the power button for a few seconds but to no avail. I tried pressing f2 when turning on the computer and tried to Rollback my BIOS (now F.61) back to F.47 but it keeps saying that it "cant open signature file". I tried flashing the old BIOS version (F.47) too but it also says it can't read the signature file.

I tried flashing an even more up to date BIOS (F.62) that I downloaded from the website through usb flashdrive but the HP Logo just pops up along with a loading animation and then goes into a blackscreen after a few seconds.

After messing around with it for the whole day trying to find anything that could help, I noticed that it does seem to boot into Windows and the system itself is running. Whenever I plug a usb flashdrive in, it plays the sound. If I press capslock or f6 the LED Indicators light up like normal. When I press Alt + f4 and press enter, the computer actually shutsdown. And when I leave it alone for long enough it actually goes to sleep mode, but then the monitor never turns on after.

I really wanna save factory reset as as my last resort because I have loads of work and data in this computer and I do not have easy access to an external hard drive large enough to hold all of the data in this thing for backup.

I pray to the Gods and Primordial beings out there that there's something I can do to save this laptop.

 

Here's the Log when I tried flashing the older version f.47:
2021-04-21 15:21:24 EFI HP BIOS Update 3.9.0.0 Started
2021-04-21 15:21:24 [L]> System ID: Type
2021-04-21 15:21:24 HP BIOS Image Interface Protocol Version 2.0
2021-04-21 15:21:24 [L]> EFI_HP_BATTERY_CONTROL_PROTOCOL_2010 is present.
2021-04-21 15:21:24 Type 11 1 tables
2021-04-21 15:21:24 Type (000000000000000Bh), Len (0000000000000005h), Handle (000000000000001Dh), String count (0000000000000009h)
2021-04-21 15:21:24 HPBATDET: Environment Variable not found.
2021-04-21 15:21:24 BATDET: Date 7//17//2018
2021-04-21 15:21:24 BATDET: 0
2021-04-21 15:21:24 [L]> BATDET: HP
2021-04-21 15:21:24 [L]> Found 1 Absolute Pointer Protocol(s)
2021-04-21 15:21:25 [L]> 0 UART device path node found.
2021-04-21 15:21:25 All Required Protocols Located
2021-04-21 15:21:25 HpBiosUpdate.Mode = 4
2021-04-21 15:21:25 WRITE_BB = 0
2021-04-21 15:21:25 Current Directory = HP\BIOSUpdate\
2021-04-21 15:21:25 [L]> System ID: Type
2021-04-21 15:21:25 SMBIOS Init Success
2021-04-21 15:21:25 SystemFamily = 2
2021-04-21 15:21:25 [L]> PlatformLang reported as en-US.
2021-04-21 15:21:25 [L]> Language Selected is currently (eng).
2021-04-21 15:21:25 Starting BIOS Update Process
2021-04-21 15:21:25 Setting BIOS Update Token
2021-04-21 15:21:25 Getting BIOS Detail Information
2021-04-21 15:21:25 IsBiosSixDigits = 0
2021-04-21 15:21:25 BIOS Returned BiosID '0849E'
2021-04-21 15:21:25 Skip Addresses:
2021-04-21 15:21:25 Entry 0: Address 0x3C5000: Size: 0x1000
2021-04-21 15:21:25 Entry 1: Address 0x3C7000: Size: 0x24000
2021-04-21 15:21:26 Entry 2: Address 0x655000: Size: 0x40000
2021-04-21 15:21:26 Entry 3: Address 0x77F000: Size: 0x81000
2021-04-21 15:21:26 Loading BIOS Image
2021-04-21 15:21:26 File name constructed: HP\BIOS\Current\0849E.bin
2021-04-21 15:21:26 Reading New BIOS Image HP\BIOS\Current\0849E.bin
2021-04-21 15:21:26 Getting BIOS version from file image
2021-04-21 15:21:26 Bios Version = F.47
2021-04-21 15:21:26 Verifying AC or Battery Power Status
2021-04-21 15:21:26 Verifying Binary match
2021-04-21 15:21:26 Loading Signature File
2021-04-21 15:21:26 Failed Reading BIOS Signature File HP\BIOS\Current\0849E.sig
2021-04-21 15:21:26 Failed Reading .sig file. (Not Found)
2021-04-21 15:21:26 New Bios Verify Signature Return Result not handled (Incompatible Version)
2021-04-21 15:21:26 Verify s12 signature: Bios Verify Signature Not Succeed (Incompatible Version)
2021-04-21 15:21:26 EfiBiosUpdateLibEntry(): Result is 0x3
2021-04-21 15:21:26 Setting Flash Completion Status
2021-04-21 15:21:26 BIOS Update Process Complete

 

Heres the Log when I tried Flashing the new F.62 BIOS:

2021-04-21 16:52:48 EFI HP BIOS Update 3.9.3.0 Started
2021-04-21 16:52:48 [L]> System ID: Type
2021-04-21 16:52:48 Failed Loading EFI_HP_BIOS_IMAGE_INTERFACE_PROTOCOL2_GUID(Not Found)
2021-04-21 16:52:48 HP BIOS Image Interface Protocol Version 2.0
2021-04-21 16:52:48 [L]> EFI_HP_BATTERY_CONTROL_PROTOCOL_2010 is present.
2021-04-21 16:52:48 Type 11 1 tables
2021-04-21 16:52:48 Type (000000000000000Bh), Len (0000000000000005h), Handle (000000000000001Dh), String count (0000000000000009h)
2021-04-21 16:52:48 HPBATDET: Environment Variable not found.
2021-04-21 16:52:48 BATDET: Date 7//17//2018
2021-04-21 16:52:48 BATDET: 0
2021-04-21 16:52:48 [L]> BATDET: HP
2021-04-21 16:52:48 [L]> Found 1 Absolute Pointer Protocol(s)
2021-04-21 16:52:48 [L]> SetBestGopMode to 0: 1366x768
2021-04-21 16:52:49 [L]> 0 UART device path node found.
2021-04-21 16:52:49 All Required Protocols Located
2021-04-21 16:52:49 HpBiosUpdate.Mode = 4
2021-04-21 16:52:49 WRITE_BB = 0
2021-04-21 16:52:49 Current Directory = HP\BIOSUpdate\
2021-04-21 16:52:49 [L]> System ID: Type
2021-04-21 16:52:49 SMBIOS Init Success
2021-04-21 16:52:49 SystemFamily = 2
2021-04-21 16:52:49 [L]> PlatformLang reported as en-US.
2021-04-21 16:52:49 [L]> Language Selected is currently (eng).
2021-04-21 16:52:49 Starting BIOS Update Process
2021-04-21 16:52:49 Setting BIOS Update Token
2021-04-21 16:52:49 Getting BIOS Detail Information
2021-04-21 16:52:49 IsBiosSixDigits = 0
2021-04-21 16:52:49 BIOS Returned BiosID '0849E'
2021-04-21 16:52:49 QueryImageDetail: 4K Block Size detected.
2021-04-21 16:52:49 Skip Addresses:
2021-04-21 16:52:49 Entry 0: Address 0x3C5000: Size: 0x1000
2021-04-21 16:52:49 Entry 1: Address 0x3C7000: Size: 0x24000
2021-04-21 16:52:49 Entry 2: Address 0x655000: Size: 0x40000
2021-04-21 16:52:49 Entry 3: Address 0x77F000: Size: 0x81000
2021-04-21 16:52:49 Loading BIOS Image
2021-04-21 16:52:49 File name constructed: HP\BIOS\Current\0849E.bin
2021-04-21 16:52:50 Reading New BIOS Image HP\BIOS\Current\0849E.bin
2021-04-21 16:52:50 Getting BIOS version from file image
2021-04-21 16:52:50 Bios Version = F.62
2021-04-21 16:52:50 Verifying AC or Battery Power Status
2021-04-21 16:52:50 Verifying Binary match
2021-04-21 16:52:50 Loading Signature File
2021-04-21 16:52:50 Failed Reading BIOS Signature File HP\BIOS\Current\0849E.sig
2021-04-21 16:52:50 Failed Reading .sig file. (Not Found)
2021-04-21 16:52:51 Bios Verify Signature Success (Success)
2021-04-21 16:52:51 Loading Password File if required
2021-04-21 16:52:51 BIOS Password not required.
2021-04-21 16:52:51 Writing BIOS Image
2021-04-21 16:55:47 Verifying Written BIOS Image
2021-04-21 16:55:47 VerifyImage: 4K Block Size detected.
2021-04-21 16:56:01 Skipping Verification Block 965 Address 0x00000000003C5000 Size 0x0000000000001000
2021-04-21 16:56:01 Next BlockIndex 966, BlockAddress = 0x00000000003C6000
2021-04-21 16:56:01 Skipping Verification Block 967 Address 0x00000000003C7000 Size 0x0000000000024000
2021-04-21 16:56:01 Next BlockIndex 1003, BlockAddress = 0x00000000003EB000
2021-04-21 16:56:08 Skipping Verification Block 1621 Address 0x0000000000655000 Size 0x0000000000040000
2021-04-21 16:56:08 Next BlockIndex 1685, BlockAddress = 0x0000000000695000
2021-04-21 16:56:11 Skipping ar5Verification Block 1919 Address 0x000000000077F000 Size 0x0000000000081000
2021-04-21 16:56:11 Next BlockIndex 2048, BlockAddress = 0x0000000000800000
2021-04-21 16:56:11 Updating BIOS files
2021-04-21 16:56:11 EfiBiosUpdateLibEntry(): Result is 0x0
2021-04-21 16:56:11 Setting Flash Completion Status
2021-04-21 16:56:11 BIOS Update Process Complete
2021-04-21 16:56:11 BIOS Update Successful

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CDX22
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HP Recommended

Update: I think I can confirm that Windows itself is actually running in the background like normal. It just cant seem to display anything. I can hear all the sounds and notifications and it connects to my phone's hotspot. 

 

I don't have access to an HDMI cable right now to text with an external display, so I tried using another laptop and connected them the same network, and tried to project the display. After a few minutes of blindly clicking around trying to click he Ok button somewhere in the corner. I managed to connect them. As i tried duplicating the display, the other laptop also showed an entirely black screen.

 

Im guessing maybe the video drivers aren't working properly with the new BIOS..??

 

maybe someone can provide me an older working bios? I cant seem to find F.42 anywhere, only F.47(which doesn't flash for some reason, log says it's incompatible) and F62(still doesn't fix blank screen), both firmwares I got from the product's own software.

Someone help me pls 😞

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