restoring new iphone SE (classic) from iphone 4

restoring new iphone SE (classic) from iphone 4 when imac with itunes has yosemite 10.10.5 and

I bought iPhone SE classic from ebay. New in box and shrink wrapped. When I first got it, I restored from iPhone 4 iTunes backup, worked great, everything transferred over. Then, before I had a chance to activate, it downloaded an update. I asked Verizon how to transfer data that came in between the transfer and download. Verizon support said I could restore it again. Bad idea. The phone went into stuck mode, I had to go to Genius Bar to get it unstuck. Genius Bar asked what software version the phone came with, I told them what I thought, but when they returned the phone it had the most recent version of software. Now iTunes won't recognize it, but I can't update iTunes because I have Yosemite 10.10.5 on a 2007 iMac.

How can I restore all the settings and data from the iPhone 4 again which included email, music, etc.? I have backups of iPhone 4 on iTunes on hard drive and also in iCloud.