Can't enter recovery mode on iPhone 6

How long was the iPhone lost? It may need a new battery.

IvyYoshi wrote:

I recently found my lost iPhone 6, but I had put a passcode on it, and I can't remember the code. I looked online and saw that you could factory reset your phone to get rid of the passcode. So I followed the instructions on https://support.apple.com/en-us/HT204306 multiple times, but it didn't work because whenever I try to enter recovery mode, it displays the low battery symbol, and I have to wait for another 20 or so minutes for it to recharge and stop being disabled.

Then plug the phone to a power source until it has enough battery life and then do the recovery mode.