Need BIOS for Envy 15t‑j100 Quad Edition CTO Notebook, Sys Brd ID 1962, BIOS F.72 Rev.A sp88646.exe

[teranz]

This information shows how the proper F.72 BIOS was identified for my System Board ID 1962 in a softpaq file.  There are several sp88686.exe softpaq files available with a F.72 BIOS.  The key here is identifying which one holds the proper BIOS payload that will work for a particular System Board and won't brick your system.  The HP BIOS update software should prevent loading an incorrect BIOS file as well.

My (2014?) Envy 15t-j100 CTO Notebook system stopped performing the "sleep" function properly (Using Windows 10). The first sleep action after a boot the system was fine and the PC went into Sleep.  After wake if sleep was attempted again before a shutdown it always hung. I have read this was an ACPI issue and may be fixed by loading the latest/last BIOS. The softpaq 88646.exe with the latest BIOS is F.72 BIOS (2018) for HP Board ID 1962. The system had the F.67 bios from 2016. The computer also failed the same way using Linux (Xubuntu 26.04 LTS). Occasionally the system would work properly for a while but seemed to break again when switching from Battery <--> AC Adapter.

My System Board: 15SBGU-6050A2547701-MB-A02

Recent research informed me the issue could have been the EC chip LT8527E or its firmware on the motherboard, or even a Voltage regulator or maybe a capacitor.  This firmware *may* also get updated from the correct softpaq file.

It's still hidden at HP website, but they delete the support/drivers page for models over 10 years old
Release notes: https://ftp.hp.com/pub/softpaq/sp88501-89000/sp88646.html
Softpaq: https://ftp.hp.com/pub/softpaq/sp88501-89000/sp88646.exe

[Softpaq]
SoftpaqNumber=SP88646
SupersededSoftpaqNumber=SP82482
SoftPaqMD5=53cafd02959b0d2da8b50308d713e74c
SoftPaqSHA256=45961D23A57ED063273B6A8A3CEDD6C99CDC495D366E4613765D523CC0AACBB3

[System Information]
SysId01=0x1962
SysName01=HP ENVY 15,HP ENVY TOUCHSMART 15

My HP System Board is #1962...

That's on platform.ini located in C:\SWSetup\SP88646 (after running the sp88646.exe)
Your board uses 01966 BIOS

[MULTI_FD]
Flag=1
FD#01=PCI,0,0,0,2C,FFFFFFFF,1962103C,01966.fd
FD#02=PCI,0,0,0,2C,FFFFFFFF,1963103C,01966.fd
FD#03=PCI,0,0,0,2C,FFFFFFFF,1965103C,01966.fd
FD#04=PCI,0,0,0,2C,FFFFFFFF,1966103C,01966.fd
FD#05=PCI,0,0,0,2C,FFFFFFFF,1967103C,01966.fd
FD#06=PCI,0,0,0,2C,FFFFFFFF,1968103C,01966.fd
FD#07=PCI,0,0,0,2C,FFFFFFFF,1960103C,01961.fd
FD#08=PCI,0,0,0,2C,FFFFFFFF,1961103C,01961.fd
FD#09=PCI,0,0,0,2C,FFFFFFFF,1964103C,01961.fd
FD#10=PCI,0,0,0,2C,FFFFFFFF,1969103C,01961.fd

[Jerry_57]

Hi @teranz,

Welcome to the HP Support Community.

Thank you for posting your query. I will be glad to help you.

I hear that your HP Envy 15t-j100 QUAD CTO notebook needs a BIOS update due to Sleep issues.

You can try several concrete workarounds to fix the wake-up hangs and battery/AC switching issues:
 

1. Windows 10 Power Settings:

Adjust sleep parameters in Windows to bypass problematic hardware power management states:
 

• Press Windows Key + R, type control to open the Windows Control Panel, and navigate to Power Options.
   
• Click Change plan settings next to your active plan, then Change advanced power settings.
   
• Expand Sleep and set Allow hybrid sleep to Off.
   
• Expand PCI Express and set Link State Power Management to Off.

2. Linux (Xubuntu) ACPI Adjustments:

Since Linux also encounters ACPI hangs, you can adjust your kernel boot parameters:
 

• Open your terminal and edit the grub configuration using sudo nano /etc/default/grub.
   
• Locate the line GRUB_CMDLINE_LINUX_DEFAULT="..." and add acpi_osi=Linux or acpi_osi=!windows to test how your BIOS responds.
   
• Save the file, run sudo update-grub, and reboot.

3. Battery vs. AC Hardware Toggles:

Power state hangs often occur because the motherboard’s Embedded Controller fails to renegotiate power delivery between the battery and the AC adapter.
 

• Perform a "Hard Reset": Unplug all external devices, disconnect the AC adapter, and press and hold the Power Button for 15-20 seconds to drain the motherboard's residual power.
   
• Verify your AC adapter's wattage. If you are using a lower-amp aftermarket charger (e.g., 2.31A instead of the OEM 3.33A+), the laptop will struggle to switch power profiles, causing system instability.
   

4. Alternative BIOS Recovery:

If you absolutely need the F.72 BIOS and find the .exe refuses to execute, you can use the built-in HP BIOS Recovery Utility:
 

• Extract sp88646.exe using compression tools like 7-Zip.
   
• Identify the .fd / .bin files and your Board ID.
   
• Format a FAT32 USB flash drive, create the folder structure Hewlett-Packard/BIOS/Current/, and paste the files there.
   
• Plug in the USB, turn off the laptop, hold Windows Key + B (or Windows Key + V), and press the Power button for 2 to 3 seconds. Release the power button while continuing to hold the Windows keys to force the BIOS to flash.

I hope this will help.

 

Take care and have a good day.

[teranz]

Hi Jerry:

The posts (6-22-26) I created got a bit undone when I first put them up... I kept getting flagged for Spam which they were not, so I kept trying with less and less details.  The info I posted first (on 6/22/26) should state I did get the BIOS loaded and it did fix the sleep/wake issue... I had tried everything in the past without success on Windows and Linux.  The BIOS was the only true fix and I am sharing details of how I got that done to help others.  I will be sure readers of my most recent posts know that I did get the BIOS loaded, I am no longer in need of a fix becuase it works perfectly now.

Thank You for your additional info on flashing a BIOS!

Tom

P.S. - The duplicity of the shorter posts could be deleted.

[Jerry_57 · Accepted solution]

Thank you for sharing your experience. It’s great to hear that loading the BIOS finally resolved the sleep/wake issue after all the earlier attempts. Your detailed notes will be invaluable for others facing the same challenge, and we appreciate you taking the time to contribute.