"And so in the body of tx, in boxing is RX). On the second output luminescence is not very bright and you can not see, but nevertheless it should be (meaning output rx phone). There are also descriptions of a variety of devices that help determine the Rx and Tx. We will not sharpen its focus on such devices, since, firstly, they need to if you often define these parameters, and secondly, these descriptions can be easily found online. Now back to the definition of gnd or "mass" ("earth") apparatus. It should be noted that it accounts for a significant part of the exposed copper on board the phone. And it is soldered to the plug housing, contact one of the SIM-connector Closing chipset screens, it is '-' batteries and much more.
How do you determine the mass? To do this we need the Chinese unit for continuity test (tester '', etc.), it should be set to continuity test mode (when the device Squeaks in conjunction with each other to probe), take out the battery (the battery) from your phone, then put one probe on the '-' battery connector (where the '-' at the device, you can see by looking at the battery itself, in her usual contacts' + 'and' – 'sign), and the second probe to the opening of the copper seats on the board. If the device beeps, it means the site has direct contact with the '-' battery connector, and therefore it is our weight. We sincerely hope that this article will help you eliminate many of the problems with Chinese phones, but we want to draw your attention to the fact that all the manipulations with the phone should only be undertaken if you are self-confident and aware of their actions and possible consequences. Also do not forget that there are special services that can repair your phone with a warranty, and if you are not sure that will be able to cope with the solution of the problem, it is better refer to specialists. In conclusion, we wish to unpleasant problems with your phone as little as possible and you are as little as possible addressed to this article.