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. > > >
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