Success! I managed to flash the BIOS using the XGecu T76 and direct wiring to JP2 with 1.8V.
The system boots again and everything works fine now.

Thanks to everyone who helped – especially for identifying the correct chip and pointing me to the right tools. Much appreciated! 🙏
Thread can be closed.

Yeah, CH341A is old. I know.

It’s what I’ve got right now — not perfect, but it works (mostly).

Flashing via JP2 is the current plan. If it fails, I’ll switch.

Problem is: can’t find a solid modern programmer on Amazon Germany.
Tons of clones. No real specs.
Need a reliable tool. Suggestions?
Thanks....

Thanks for confirming JP2 – that helps a lot.

Also thanks for the BIOS file.

I’ll try flashing it using CH341A with a 1.8 V adapter, wired directly to JP2.

Or do you recommend using a different programmer instead?...

Thanks for the tip.

I agree – it was probably a contact issue with the clip.
I’ve now taken a better photo of the XMC 25RU256CXIQ chip (attached here).

It’s extremely flat and hard to get stable contact with the clip.
I’ll try again using better pressure and double-check pin 1 orientation.
Once I manage to get a clean read (same data 2–3 times), I’ll upload the dump here.

The reason I’m trying to flash the BIOS:
The laptop shows no display at all, no Lenovo logo – just fans spinning and keyboard lighting briefly....

Model: Lenovo IdeaPad 5 16ARH7H
Serial number: PF3ZL6TE
Motherboard: NM-E471 Rev. 2.0
GPU: NVIDIA RTX 3070 Ti

Found chips:

• Winbond 25Q16JWSIQ (1.8V)
• 25X05CL (very small EC chip)
• and recently: XMC 25RU256CXIQ
  (possibly the real BIOS chip – 256Mbit, 1.8V)

I’ll upload a proper dump from the XMC chip once I get stable contact using the 1.8V adapter.

Thanks for your time....

Thanks for the reply – and yes, I made a mistake with the 25Q16JWSIQ chip.
I thought it was the BIOS and accidentally erased it, but I had made a backup first and reflashed it right after.

I’ve attached that 2MB backup here, in case it’s helpful.

I also took a clear photo of the motherboard (attached), but I really don’t see any second SPI flash chip – no 32MB chip anywhere visible.
Only the 25Q16JWSIQ and a small 25X05CL.

Graphic Card is 3070ti
If you spot anything in the photo I missed, I’d really appreciate a hint....

Hi everyone,

I’m looking for a 2 MB BIOS dump for a Lenovo IdeaPad 5 16ARH7H / Legion 5 with mainboard NM-E471 Rev. 2.0.

The BIOS chip is a Winbond W25Q16FW (1.8V, 2MB) and it's completely unresponsive / bricked. I tried recovery via USB but no success. Now I want to reflash it externally using a CH341A programmer.

I already found 32MB dumps (e.g. from Vinafix and Badcaps), but they are too large for the chip – and the last 2MB in those files are just FF FF FF....

✅ What I need:

• A working 2MB BIOS dump
• Matching NM-E471 Rev. 2.0, e.g. JY575

...