All iOS 10.3.4 (14G61) IPSW files free download
You can download 10.3.4 (14G61) IPSW files for different iDevices from here. This IPSW version is currently still being signed for some older iDevices. The firmware status will get updated automatically so, you will be able to know if the firmware is signed by the time of your visit.
iOS 10.3.4 addresses an issue that could impact GPS location performance and could cause system date and time to be incorrect. This update is recommended for all users.
For information on the security content of Apple software updates, please visit this website:
https://support.apple.com/kb/HT201222.