I have brought a new guitar and after few days of playing the G string had been broken. So I replaced it with a new one. But the new string is so hard to tune, but I forced and it just broke. Now again I replaced it but this new string is also not coming up to G. I use a tuner machine. I saw it to be tuned up to E# and then it broke. I don't know why the new string is not stretching up to the need and getting broken before it tuned. Is it the problem with the replacement technique of new string? Or it is due to bad quality string? Or it is a problem related with the guitar? I am not getting any idea. (Now I am getting the same problem with the higher E string also) kindly tell me what to do.