三星手机秘书长r220 I have a Samsung GSM mobile phone SG R220.我有一个三星的GSM移动电话秘书长r220 。 It has been working fine for last 6 years.它一直在努力的罚款，最后六年。 Last 3-4 days I was unable to get any signal on the phone.去年3-4天，我无法得到任何信号，在手机上。 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.我查了该SIM卡的工作是用在另一个电话，也证实有适当的接待，在我区。 So I rightly suspected that the problem was with the phone itself.所以我怀疑是正确的，这个问题与手机本身。 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.我参观了三星电子服务中心，只告诉他们将改变电池（这亦是封底） ，将“可能”性能的改善。 I grew suspicious because there was nothing wrong with the battery, it has been working fine for last 6 years.我生长的可疑，因为当时没有什么不妥的电池，它一直在努力的罚款，最后六年。 The battery worked without any issues even after being inactive and without charge for over a year!电池工作时不出现任何问题，甚至后，被停播，并没有收取超过一年！ So I decided to hack my cell phone.所以我决定入侵我的手机。

I had the required screw-driver (special ones) to pry open the phone.我所要求的螺杆驱动程序（特别的） ，以刺探打开手机。 But before starting I wanted to clean the contacts of the antenna.但出发之前我想清洁接触天线。 So I took the connecting pin of my multimeter connector (even a regular safety-pin will do fine) and started scratching the base of the antenna.因此，我采取了连接针我的万用表连接器（甚至定期安全针将尽罚款） ，并开始刮的基础上的天线。 In Calcutta nowadays it is very hot and humid, so I suspected that it could be damp related problem.在加尔各答现在是非常炎热和潮湿，所以我怀疑这可能是潮湿的相关问题。 Immediately the signal strength increased by 3-4 bars and went near its maximum from zero previously.立即信号强度增加了3-4酒吧和到附近其最大从零以前。 So I went for more scratching.所以我到更多的划痕。 And surprisingly enough my cell-phone now has better reception than ever before.和足够令人惊讶我的手机现在有更好的接待，比以往任何时候都。 All it needed was some scratching behind the ears ..所有它需要的是一些刮背后的耳朵.. err in the hole where the antenna is lodged.错误在该洞的地方天线的投诉。 While I am not sure if the same trick will work with every cell phone, especially the ones with hidden antennas, I think it is worth the effort to clean the antenna and its base as far as it is accessible for better reception.虽然我不知道如果同样的把戏，将工作与每一个手机，特别是那些隐藏天线，我觉得这是值得努力的清洁天线及其基地而言，这是获得更好的接待。