⟐ Commented August 13, 2026 at 18:33 MST

The main problem is:

The BIOS detects the internal SSD correctly, but when I try to boot from it, I get:

> Operating System Not Found

The most important detail is that this problem existed before installing Linux. The laptop originally had Windows 7 installed, and it already showed exactly the same error. Therefore, I don't think Linux is the original cause of the problem.

Hardware

• Dell XPS 13 L321X

• BIOS: A08

• SSD: Samsung PM85, approximately 256 GB

• Phoenix SecureCore Tiano BIOS

• Motherboard: Quanta D13 / DA0D13MBCD1

What we have verified

The BIOS detects the SSD correctly.

The F12 boot menu shows:

• Removable Drive

• Hard Drive

• CD/DVD/CD-RW Drive

• Diagnostics

• Setup

If I select **Hard Drive**, the laptop attempts to boot but immediately ends up with:

> Operating System Not Found

The SSD is also visible and accessible from a Linux Mint Live USB environment.

Linux Mint

We installed Linux Mint from a USB drive.

The SSD was partitioned using GPT and contains an EFI System Partition as well as the main Linux partition.

We also previously verified that the Linux Mint USB environment was booting in UEFI mode.

However, after installation, removing the USB drive results in:

> Operating System Not Found

We previously attempted to repair GRUB, and one of the repair attempts reported:

> Installing for i386-pc platform.

> Installation finished. No error reported.

This made us suspect a Legacy/BIOS vs UEFI mismatch. However, the strange part is that **Windows 7 had already produced the exact same error before Linux was ever installed**.

BIOS password

The BIOS originally had an administrator password:

• Admin Password: Set

• System Password: Cleared

• HDD Password: Cleared

The administrator password prevented us from changing some BIOS settings, particularly settings related to boot configuration.

After researching the issue and following a physical reset procedure, I completely discharged the laptop and performed a bridge/reset procedure at the RTCR2 area of the motherboard. Afterward, a new status appeared:

• HDD Password State: Cleared

However, the administrator password still appears as Set, and the boot problem remains.

I don't want to continue bridging motherboard contacts or modifying the BIOS blindly.

What I am trying to find out

Has anyone experienced this specifically on a **Dell XPS 13 L321X**?

In particular:

1. Is there a known issue with BIOS A08 and booting from the internal SSD?

2. Does this BIOS require a specific bootloader or a specific EFI file/path?

3. Is there something unusual about this Phoenix BIOS that makes it detect the SSD but fail to find the operating system?

4. Should GRUB be installed in Legacy/BIOS mode on this model, or should it use UEFI?

5. Is there a specific BIOS configuration required to boot Linux from the internal SSD?

6. Has anyone successfully installed Linux Mint, Ubuntu, or another modern Linux distribution on an L321X and booted it directly from the internal SSD?

We have verified that the SSD is detected and that the operating system can be installed successfully from USB. The failure happens specifically **when the laptop tries to boot from the internal SSD**.

Any expe

rience, procedure, or model-specific information would be greatly appreciated.

Thank you!

⟐ Commented August 11, 2026 at 16:38 MST

• The microphone does not pick up any sound (I gone through every permissions setting, etc). All of the drivers are up to date. I've tried just using the Sound Recorder and it is completely flatlined.
• The camera still works just fine. As do the speakers.
• When I close the laptop, before it goes to sleep, it produces some awful feedback noises if neither the mic nor speakers are muted.

I am tempted to think that it is a cable issue, but the fact that the camera is fully functional gives me some pause there.

The only insult that the laptop has sustained since I last used the microphone was that is was in a backpack in a hot car for a day which had me a little worried. That said, I hadn't used the mic for some time before this, so I do not have a clear link from this to the current state -- I just feel bad that it was in a hot car.

⟐ Commented July 25, 2026 at 19:38 MST

⟐ Edited July 08, 2026 at 18:06 MST

 Thanks for any pointers.

⟐ Answer accepted June 03, 2026 at 13:49 MST

thanks

⟐ Answered June 03, 2026 at 13:14 MST

⟐ Answer edited May 18, 2026 at 20:54 MST

⟐ Answer accepted April 27, 2026 at 18:32 MST

⟐ Commented April 08, 2026 at 19:13 MST

⟐ Answered February 04, 2026 at 4:59 MST

⟐ Answered December 25, 2025 at 13:15 MST

⟐ Answered October 30, 2025 at 1:15 MST

After recommended battery calibration, full charge and complete discharge by the computer, the battery is not charging anymore.

bios tells battery charging status: idle, health status: excellent, no power is transferred to the battery

I am left with 2% battery life in the new one.

Switching ac adaptor does not help.

I put in the old battery again, which is charging with the mentioned 130Wh adaptor, but doesn’t hold capacity….

Is there a known solution for this situation?

⟐ Commented October 23, 2025 at 14:41 MST

⟐ Commented October 15, 2025 at 23:37 MST

⟐ Answer edited September 10, 2025 at 5:04 MST

⟐ Answer edited August 31, 2025 at 8:47 MST

⟐ Answered August 22, 2025 at 5:17 MST

Just as the title says.

I have updated everything and even rolled back the touchpad drivers which is considered the PS/2 Mouse. Still no luck sadly. I can’t say for sure how or if there is any physical damage as this is my rather careless teenage daughter’s. Might anyone have a clue?

Please be Well,

Thank You.

⟐ Commented July 21, 2025 at 13:49 MST

Any suggestions welcome.

⟐ Answered July 10, 2025 at 11:52 MST