iphone 4 error code -1

[Vjb213]

I recently bought an iphone 4 and its stuck in recovery mode i updated my itunes and done everything and i cant figure out whats wrong with it when it almost finishes the restore, it says error code -1 and ive checked and that is not an error someone help please

 

[popatim]

From the internet:
"Error -1 is a baseband issue. The board needs to be repaired. You can buy the new components but it's tricky to do without experience. It's best to replace the baseband power ic first. If not solved then replace the baseband ic. It can be done with a heat gun but you will need a dentist type pick to remove the resin around the ic. There are a few vids on YouTube showing how it's done."