Dell G15 5515 Ryzen Edition - Black screen, no POST, 2 amber + 1 white LED blink code

Hi

Well rather than search thru the DELL manuals for the model, I asked the internet ...

• Dell’s service manual for the G15 5515 lists LED code 2,1 as “Processor failure.”​

• Independent Dell repair references agree that 2 amber, 1 white is a CPU‑related hardware error (CPU or motherboard).​

• When this is present with black screen and no POST, you are usually looking at a board‑level issue rather than RAM, disk, or display.

These are “long shots” but low‑risk:

1. Full power drain / EC reset

   • Disconnect AC.

   • If you can, open the base and unplug the internal battery connector.

   • Hold power button for 20–30 seconds.

   • Reconnect battery, plug AC, and try to power on again.
     This sometimes clears a latched fault but typically does not resolve a genuine 2,1 CPU error.​​

2. Minimal boot configuration

   • With base open, remove any secondary SSD or user‑added RAM (if present).

   • Try booting with only the factory RAM and internal SSD, or even with SSD removed, to see if the blink pattern changes.

   • If the code stays 2,1 with nothing but board + CPU + one RAM stick, it reinforces a CPU/board fault.​

3. BIOS recovery key‑chord (if screen ever shows life)

   • Ctrl + Esc (or Ctrl + Fn + Esc on some reports) while plugging in AC and pressing power can trigger BIOS recovery on this model.

   • If the panel and an external monitor both stay completely black, and the LED code remains 2,1, BIOS corruption is much less likely than a hardware fault.

You are almost certainly at hardware‑repair level if:

• LED pattern is consistently 2 amber, 1 white on every power‑on.

• No Dell logo, no POST beeps, no response to RAM changes beyond the same blink code.

• External monitor also shows no signal.

For the G15 5515 Ryzen, the CPU is soldered to the motherboard (BGA), so a “CPU failure” effectively means system board replacement or board‑level rework (reball/replace APU or repair power rails), not a drop‑in CPU swap.

• Under warranty / Dell ProSupport: push this to Dell as a board failure; they typically replace the system board for 2,1 codes.​

• Out of warranty, DIY‑friendly:

  • Replace the entire motherboard with the same part number or a compatible revision (check the board P/N silkscreen, e.g. LA‑K454P).

  • This is a full teardown (follow the G15 5515 service manual for disassembly sequence and torque patterns).​

• Board‑level repair shop:

  • A good laptop repair lab can check CPU and GPU power rails, BIOS chip, and possibly reflash BIOS externally, but if they confirm CPU/SoC failure you are back to board replacement.

What ""I’d"" do, step‑by‑step (realistic path)

1. Open the base, disconnect battery, hold power 30s, reconnect, retry.

2. Test boot with minimal config (1 RAM stick, no extra drives) and see if blink code changes.

3. If 2 amber + 1 white persists with no POST or display, treat it as a dead board.

4. Decide between:

   • Board replacement (DIY using Dell’s service manual), or

   • Sending to Dell / a specialist for a quote, weighing that against the value of a replacement laptop.

If you have a decent technician in your area give him a call and see if he can help you out. Though it appears the processor is bad it might be just an unintended (bad) bios update giving you that code. Worth a try.

eg https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-laptops-tablets-and-mobile-devices/3314862-dell-g15-ryzen-edition-black-screen-2-amber-1-white

@Maxd1​ I respect your opinion very much, and the problem you sent is exactly the same as mine. However, I'm confused with the technician I'm working with; I need the correct BIOS file.

There are a couple of possibilities - a CPU failure is one but it's lower in probability than the other one.  The other one is that it's a failure in a CPU power rail.

The only sure solution for either is a replacement mainboard.  You may also consider a repair to the mainboard, but that is going to require a shop that can do board level parts replacement.  Either option is likely to be a few hundred dollars in cost - and with the system having a sub-$500 value at this point, consider either in light of that.

If you think you can do the job yourself and have all the equipment necessary, badcaps is the best site I know to get help. It's not an easy process and there's a lot of learning required for a noob. Your money is best spent getting a tech who has done this before (successfully); most will not charge you if they can't fix it. Get it in writing.

If you don't know how to work with the Dell-site BIOS you will have to sign up and subscribe to badcaps > 6 pounds; perhaps Anne can help you out there if you treat her better. She's British.

https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-laptops-tablets-and-mobile-devices/bios-requests-only/105720-dell-g15-5515-la-k454p-rev-1-0-bios-bin-need/page3#post3650213

And so you know, ejn63 is the most-knowledgable hardware expert on this forum.