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Dell Latitude 7320 Detachable won't boot after battery replacement (leminal.space)
submitted 5 days ago by byte21516@leminal.space to c/hardware@lemmy.world
3 comments fedilink hide all child comments

cross-posted from: https://leminal.space/post/41823822

Hey everyone,

I'm having a weird issue with a Dell Latitude 7320 Detachable after replacing the battery.

Here's what happened:

After installing the replacement battery, the device stopped booting.

The charging/power LED lights up when connected to USB-C power.

When pressing the power button, the keyboard and stylus light up.

After a few seconds, the power LED blinks twice and the device shuts down.

I switched back to the original battery, and the device actually managed to boot into Dell Diagnostics once.

After that, it stopped booting properly again.

At one point, the screen stayed black except for a thin horizontal white line across the entire top of the display. It remained powered on.

Now even that white line has disappeared.

I'm wondering if this could be a broken BIOS, maybe some controller issue.

The fact that it managed to enter Dell Diagnostics once with the original battery makes me think the motherboard might not be completely dead.

Is there a way to force BIOS recovery or reset it on this specific model?

Any ideas?

Thanks!

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[-] CardiacFlux@lemmy.ml 2 points 3 days ago

Most machines have an option to reset BIOS to factory by holding the power button for over 30 seconds. I'd hold the power button (when it has lights on) for 45 seconds straight. Upon next boot, the factory BIOS settings should apply.

If it's still not booting, check the battery connections for any pins being bent, or the connection clips not fully seated.

Finally, if all else fails, find the CMOS battery and take it out, hold power button, then put it back in and try to boot up once more. See the Dell link below for info on the CMOS. https://www.dell.com/support/kbdoc/en-us/000124377/how-to-perform-a-bios-or-cmos-reset-and-clear-the-nvram-on-dell-systems

[-] byte21516@leminal.space 1 points 3 days ago

Tried it. The indicator LED was on, i started pressing. It turned off. After ~30 seconds it blinked 3 times. Still does not boot.

[-] byte21516@leminal.space 1 points 3 days ago

It does not have a CMOS battery but uses the system's battery. Will try the 30+ seconds thing.

this post was submitted on 10 Nov 2026
3 points (71.4% liked)

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