/challenges-projects/project14/recycleretrofit/b/blog/posts/how-to-convert-old-mobiles-into-gsm-for-home-automation-recycle-reuseIntroductionSo guys iam introducing all of you reading this blog to a new way of reusing our old mobiles phones which we are not using now may be due to it ithe emergence of new high spec Smart phones.We all have our old mobile phones in our home mayen-USTelligent Community 12