11-24-2018 06:25 AM
I'm planning to replace my broken T420 with a refurbished one, and swap the hard drives. (I'll make sure they both have the same OS.) Is it OK to do this, if the old unit is a 420, but the new one is a 420s?
Are there any other pitfalls I need to watch out for? The BIOS'es should be perfectly compatible, right?
11-24-2018 06:35 AM
You might need to reinstall some drivers when you swap the hard drives; here's the T420s driver page: https://pcsupport.lenovo.com/us/en/products/laptops-and-netbooks/thinkpad-t-series-laptops/thinkpad-...
When I swapped the drives from my Yoga 910 to 920, I didn't need to re-certify Windows. That might be different in your case since the T420 runs Windows 7, which might not have the automatic license certification. Make sure you have the Windows product key just in case it asks for it when you swap the drives.
Other than that, you should be good to go.
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