Is a softcopy Will valid in Singapore? How about as a backup?

In Singapore, the Will becomes a legally valid document once signed by the Testator along with 2 witnesses (above 21 / not beneficiary nor spouse of beneficiary). This means that it has to be in hardcopy, printed & signed.

However, if the original hardcopy is lost or destroyed, anything else other than original copy will be subjected to courts approval.

Source: Singapore Statues Online website

This application process is mentioned in the Family Justice Rules Section 248 and must be supported with evidence that can proof the Will is valid.

Source: Singapore Statues Online website

Think of it like if you lend your friend the money and subsequently lost the IOU / receipt and now all you have is the softcopy. It's entirely possible also for him to argue that the original IOU is torn up when he returned you the money. Similarly, for a Will, how do you prove its existence or that the content inside is still valid? What happens next and the outcome will be a case-by-case basis.