How do i get my i photo album back? I lost around 4 thousand pictures
If you are talking about not having your photos in the new Photo application, iPhone should still be on your computer in your Application folder and your photos should still be in it. You have to import your photos into the Photo App. Nothing should have been deleted. Check and see,
Sorry about sounding like a broken record (for younger people that's a vinyl platter with grooves), but backup, backup, backup (info for younger people). I said it three times, because you should have at least three backups in different places for treasured old pictures. On a Mac, use Time Machine, preferably pointing to an external hard drive - that will back up everything. Also manually copy your iphoto library to an archival folder on a different hard drive. I haven't yet tried copying the new photo library. Apple allows storing all your photos on iCloud - that's something I won't do, as I have tens of thousands of photos, and prefer keeping them in my hands. And I burned my photo collection to DVDs as a backup (note that not all DVD platters will last decades - some are poorly made and degrade). Periodically backup your photo collection as it grows. Hard drives do fail, including solid-state drives, so multiple backups are key to preserving a photo collection. I once lost some prints and negatives due to water intrusion from a wet wall, something that digital copies are more durable as compared to old style photos. Backup, backup, backup, in different locations!