This additional serial line is placed on the rear part of the panel and is represented by a DB9 connector. When the former does not work, basically just use the latter. The key part is to leverage a great feature of the Ltouch, that is, you can use both the mini-usb and an additional serial line in order to access and control it. The main prerequisite is having a Ltouch Android or a Ltouch43 This article will present a step-by-step tutorial and will show you how to accomplish that. The Ltouch Android-based touch panels do not suffer from this issue because they allow you to switch the adb to ethernet/wifi even when the mini-usb does not work or is broken. ![]() ![]() As a consequence, having a mini-usb connector that does not work, means that you can not upload your apks, debug and in general manage your Android device. The mini-usb is a very good connector but when you have to disconnect and reconnect it many times, it may fail or broke. This process is common for the majority of Android smartphone/tablets and in order to achieve it, the host device must receive at least a set of initialisation commands sent throughout the mini-usb connector. ![]() ![]() As presented in an earlier blog post, the Android adb daemon (in the host device) can be set to listen for requests coming from wifi or ethernet instead of the default usb.
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