Chosen Solution
I already tried to find my problem in the forum, no luck sadly.
Here it goes, my iPhone 4s is stuck on a bootloop, i can get to DFU mode just fine, the problem comes when the bar reaches the end, when the restoration bar fully charge, the thing starts bootlooping again, any help will be appreciated.
Thanks in advance.
It sounds like you need a new battery or the battery connector is damaged.