Apps crash on launch. Fix: Most modern apps require iOS 10+. You need legacy versions. Download apps from your "Purchased" history on a newer iOS device, then install them on the 4s. For sideloading, use AppSync Unified (from Karen’s repo) to install cracked or older .ipa files.
Bypassing Activation Lock is only if you: iphone 4s activation lock bypass ios 935 extra quality
If you bought a locked iPhone 4s from a stranger, contact them and ask them to remove the device from their iCloud account via the web. It takes them 30 seconds and saves you hours of hacking. Apps crash on launch