Hi Philipp,
It is just a wson-8 flash rom, whose soldering plates are compatible with those for soic-8 chips, often found on thinkpads produced when 8MiB soic-8 chip are hardly available.
The common way to deal with wson-8 chips is to blow it off with hot air blower, suck up its content, and finally replace it with a soic-8 chip.
There is an article mentioned wson-8 chips: https://www.coreboot.org/Board:lenovo/t430s
Persmule
在 2017年08月06日 00:01, Philipp Stanner 写道:
Hi list,
I don't know if it's common yet (the wiki article doesn't mention it) but today I discovered that there are Lenovo Thinkpads with very flat SMD-Flash-ROMs which make it impossible to access them with a SOIC-Clip or flash them by soldering wires to the pins directly.
I aborted the flashing but am going to try finding a work-around.
About the laptop: Type 4298-W28 S/N R9-E4CFC 11/06 (so probably manufactured in 2011)
Product ID: 4298W28
Maybe we should write one sentence in the wiki mentioning that not all chips are accessable very comfortably.
Greetings,
P.
PS: Rantmode: Why the hell don't they just solder a socket? It's not that unrealistic that someone bricks the BIOS while updating the firmware from time to time. Being able to replace the ROM with a fresh one is a huge plus.