When there is a damaged phone or computer we can clone the memory device like flashmem on phone or hd drive on computer and scan it for wallets. Basically its a search operation.
If the wallet is encrypted we do have special software that takes password guesses and tries to decrypt them
You can read more here: keychainx.medium.com
/KX
How long does an average decryption take before the wallet can be made available to the owner? Is there like some kind of a waiting period like how people wait in line for their turn, or do you start working immediately the device gets to you, and also do you charge higher for encrypted devices??