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T25 conversion on A475
T25 conversion on A475
Has anyone ever tried this? The T470 and A475 share the same chassis. Theoretically it should physically fit if you replace the keyboard palmrest and trackpad.
But will the AMD based board recognize the T25 keyboard?
But will the AMD based board recognize the T25 keyboard?
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axur-delmeria
- Senior ThinkPadder

- Posts: 4364
- Joined: Mon May 28, 2012 5:49 am
- Location: Metro Manila, Philippines
Re: T25 conversion on A475
I think that, at worst, the extra keys won't be recognized. There's nothing "smart" about the keyboard itself (it's just a switch matrix after all).
Planned Purchase: T480s i5-8350 FHD Touch
Impulse Buy: Thinkpad not named for safety reasons
RIP: X220 4291-C91 X61 7676-A24 760XD-U9E
Impulse Buy: Thinkpad not named for safety reasons
RIP: X220 4291-C91 X61 7676-A24 760XD-U9E
Re: T25 conversion on A475
I remember from my T430 days that we had firmware mods to make the keys map correctly. Hence why i'm cautious about it. I know the Intel based T470 can handle it becuse the T25 is basically just a T470 board, but when they designed the A475 they had no reason to add that support since an AMD based T25 was never in consideration.axur-delmeria wrote: ↑Fri Apr 14, 2023 9:15 pmI think that, at worst, the extra keys won't be recognized. There's nothing "smart" about the keyboard itself (it's just a switch matrix after all).
Re: T25 conversion on A475
I think there is no way to know for sure other than to test it.
Thinkpad 25 (20K7), T16 Gen 3 (21MQ), Yoga 14 (20FY), T430s (IPS FHD + Classic Keyboard), X220 4291-4BG
X61 7673-V2V, T60 2007-QPG, T42 2373-F7G, X32 (IPS Screen), A31p w/ Ultrabay Numpad
X61 7673-V2V, T60 2007-QPG, T42 2373-F7G, X32 (IPS Screen), A31p w/ Ultrabay Numpad
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axur-delmeria
- Senior ThinkPadder

- Posts: 4364
- Joined: Mon May 28, 2012 5:49 am
- Location: Metro Manila, Philippines
Re: T25 conversion on A475
Wait, you found a TP25 keyboard? I heard those were unobtanium since last year. 
Planned Purchase: T480s i5-8350 FHD Touch
Impulse Buy: Thinkpad not named for safety reasons
RIP: X220 4291-C91 X61 7676-A24 760XD-U9E
Impulse Buy: Thinkpad not named for safety reasons
RIP: X220 4291-C91 X61 7676-A24 760XD-U9E
Re: T25 conversion on A475
A couple of eBay sellers seem to be offering a few of these at the moment - European, German or Japanese layouts - very expensively...
Thinkpad 25 (20K7), T16 Gen 3 (21MQ), Yoga 14 (20FY), T430s (IPS FHD + Classic Keyboard), X220 4291-4BG
X61 7673-V2V, T60 2007-QPG, T42 2373-F7G, X32 (IPS Screen), A31p w/ Ultrabay Numpad
X61 7673-V2V, T60 2007-QPG, T42 2373-F7G, X32 (IPS Screen), A31p w/ Ultrabay Numpad
Re: T25 conversion on A475
Found French and Nordic (Danish, Swedish, Norvegian combination) layouts. Nordic is fine for me.axur-delmeria wrote: ↑Sat Apr 15, 2023 9:09 pmWait, you found a TP25 keyboard? I heard those were unobtanium since last year.![]()
Looks like the entire kit, for a T470, could be had for around 205 bucks. Might end up being more if my A475 ends up being non compatible and i have to buy a T470.
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