Chosen Solution
Hello, I replaced my iPhone 6 battery and it was working fine but on the third day after changing my battery the phone fell and the screen went black. I turned it on and it was stuck on boot loop. Tried restoring it through iTunes but was not successful, changed to the old battery, tried hard reset but was still unsuccessful and now it has been stuck in this mode for 6 months. Whenever I can, I still try restoring on my Mac but while downloading the software it will boot out of the dfu mode and start boot looping again. Did a hardware got damaged when it dropped? and If so, what hardware would cause and iPhone to get stuck in boot loop .? Please help
Disconnect all tyh e connector cables from the logic bord only keep the battery and dock connector attached to the bord and connect to itunes for a restore. Afther the restore is done well you can put back the cables/connectors back one by one to look what is causing the boot loop.