i got the SE last month and had IOS 11.1.2 already loaded..theres been 4 updates since i had my phone but i never updated due to all the bad things (battery drain/throttle cpu) plus my phone seem just fine well i woke up and found that my phone updated to IOS 11.2.5..so i went to downgrade back...
More...
Courtesy of WestNet Wireless
www.westnet.ca