You can use the online editions to amend the 2024 return. You would have to upgrade to the Premium online edition which supports entry of a Schedule K-1. For the upgrade you only pay the difference in price from the online edition you used for the original return and the Premium edition.
Before starting to amend the tax return, wait for the tax refund to be received or the taxes due to be paid and processed by the IRS.
See this TurboTax support FAQ for amending a current year tax return - https://ttlc.intuit.com/turbotax-support/en-us/help-article/tax-return/amend-federal-tax-return-curr...
