Member Avatar for callum_1

Hi, I was recentley on my toshiba satellite pro l450d-12x laptop and it went completley dead my battery and as usal it shut off so i charged it up and tried powering up but it didnt. my battery said before it went off the it needed replacing could someone help me please,
thanks in advance

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  • Latest Post Latest Post by <\Jericho>

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Quick, practical addendum for that builds on and without repeating the battery-only checks already suggested.

Because you hear the system try to start and the power LEDs light but there’s no POST/display, focus next on the AC/DC supply and simple hardware isolation rather than the OS. Start by verifying the adapter and DC‑in behavior, then rule out a flaky jack, memory or drive that stops POST, and finally rescue the drive if the board looks dead.

Measure the adapter: the L450 family uses a ~19V adapter, so test the brick with a multimeter (DC, 20V range). With the adapter plugged into the wall (but not the laptop) place the black probe on the outer barrel and the red probe on the inner pin — you should read near the rated voltage; low or wildly changing voltage means the adapter is bad. The Toshiba maintenance docs list the adapter/DC‑IN behaviour and there are step‑by‑step multimeter checks you can follow. (manualowl.com)

If the adapter reads correctly, inspect the DC jack and wiring: wiggle the plug while watching the DC LED — flicker or change in behavior strongly suggests a loose jack or solder crack, a common and repairable fault. Do a minimal hardware boot: try one RAM stick at a time in each slot, disconnect HDD/optical drive and try to POST, and test with an external monitor in case video is failing. If the hard drive prevents POST or you need the files, the drive can be removed and read with a SATA→USB adapter or enclosure. Repair guides for DC jacks and Toshiba L45-series hard‑drive removal show the typical procedure. (ifixit.com)

If adapter and jack are fine but there’s still no POST, the system board (power rails/chips) is likely at fault. At that point weigh repair cost versus replacement for a 2010-era laptop; if data matters most, remove the drive first for backup or hand it to a recovery service. If you’re not comfortable opening the case or using a meter, stop and get a local technician to avoid ESD or further damage.

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Member Avatar for rubberman

Have you tried replacing the battery? Or removing the battery and using line power (power brick) to boot up? On some systems, if the battery is dead, then even with the power brick plugged it, it won't run and you need to remove the battery to get it running.

Member Avatar for callum_1

no not tried replacing my battey yet but i try with the charger plugged in yo can hear it start to boo up the power lights come on but it dosnt seem to boot up

Member Avatar for <\Jericho>

OK, try this. step 1: remove the battery. step 2: hold down the power button for one minute. step 3: put the battery back in. step 4: try to boot. if this dosn't work, I'd first suspect the battey, if the battery checks out, I'd suspect the motherbord/power suply.

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