[Android Central Question]

So I just found my old phone yesterday. Not a big deal for me, I thought it would work. I put it on the charger for about three hours before trying to start it up, and then it got stuck in a booting loop. Then I noticed that in the top left corner of the screen it said the following:

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Secure booting Error!
Error Code : 1009
OFFICIAL!!

It gives that when I try to start it. It starts to boot up, and then after about five seconds, it shuts off again, then restarts. I did replace the battery, which did not help. I got a new sim card, which also did not help me. The type of phone is a LG. The model number is LGL52VL. It no longer has a warranty, so I can't take it to get it fixed, and I am too broke to pay for it to be fixed. So I come here for help. Does anyone know how to fix this?