I have a Samsung GSM mobile phone SG R220. It has been working fine for last 6 years. Last 3-4 days I was unable to get any signal on the phone. I checked that the SIM card is working by using it on another phone and also verified that there is proper reception in my area. So I rightly suspected that the problem was with the phone itself. I visited the Samsung service center only to be told that they will change the battery (which is also the back cover) which will "probably" improve the performance. I grew suspicious because there was nothing...
