How to flash Middleton?

[600X]

I am trying to flash the 2.24 R61 BIOS on my R61 in order to get Penryn CPU's to work. However, no matter if I use the CD or OS method, I keep getting the 'BIOS image file cannot be found' error message. What am I doing wrong? I've never had any such problems on my T61's.

[danikayser84]

Did you download the correct Middleton BIOS for your machine type? (there's one for 15" standard screen, 14.1" widescreen with FireWire, 14.1" without FireWire, 15.4" with FireWire, 15.4" without FireWire)

All T61s use the same Middleton download no matter what form factor (14.1" standard, 14.1" wide, 15.4" wide), however R61s use different ones (if you try to flash the wrong one, the flasher will not let you in order to prevent a brick)

[600X]

2.24 is the only one that would allow to use Penryn CPU's and that other people have successfully flashed on the R61. There is no point in flashing the correct one for my machine because it does not offer Penryn compatibility.

[RealBlackStuff]

If you try to use the included .ISO file, did you burn it or just copy it onto CD?
The latter won't work, instead use e.g. ImgBurn from http://www.imgburn.com/

Also, if yours is a "European" 15" R61, see this: http://forum.thinkpads.com/viewtopic.php?f=5&t=115964

[600X]

Also, if yours is a "European" 15" R61, see this: http://forum.thinkpads.com/viewtopic.php?f=5&t=115964

That did the trick. Thank you very much for that link RBS. Now my R61 can enjoy T8300 Penryn goodness.