Seems like it needs repair. So back to the shop. If it can't be repaired, they might be able to save the data that's not on your SIM-card. Or just as well they might not, or for a higher price than you are willing to pay for the data.

If you've got data on any device (PC, mp3-player, mobile phone, notebook) you prefer to keep after something happens (like a defect, or you lose it, or it's stolen), you really should make regular backups to another device or medium. If you don't do that, that's a certain risk you take.

Hope this helps.