I have downgraded from iOS 11.0.1 to iOS 10.3.3, but I have to erase all the data in order to downgrade and restored from the backup(the day I upgraded to iOS 11 GM version), but now I have a gap of the some apps' data between the period that I'm on iOS11, the instructions on youtube were not working, I do have full backup on my computers for both iOS11.0.1 and iOS10.3.3, I learned so I make full backup anytime I want to upgrade the firmware. Now, I'm trying to figure out if there is any way to fill the gap, just get those text message back to my phone, any advice?
Thanks in advance