[Android Q&A, Help & Troubleshooting] chinkl75:
Hi friends ,

I just cannot get rid of the issue with the 8 things I tried (see below). I need your help pls, it has taken me alot of time and still unsolve.

I am running on window7, 64bits. I am building the "hello world" program and follow the instruction from Andriod developer website. At first, everything went well including the installation. I even manage to run the program on my Samsung S5. However, in a while, I notice something is wrong after I edited the code, so I delete and re-install the SDK and ADT package, objective is to bring the code back to the same factory state. I had tried installing both version of 32bits and 64bits Eclipse package but encounter the following problem when i click RUN as Android application:

******************** Return the following txt: ************************

The connection to adb is down, and a severe error has occured.

You must restart adb and Eclipse.

Please ensure that adb is correctly located at 'D:\ADT\sdk\platform-tools\adb.exe' and can be executed.

**********************************************************************

I did the following troubleshooting:

1) Restart the computer and my phone (samsung S5)

2) Check that there is a connection icon on my PC (USB connected between phone and PC)

3) Update adb in the SDK using the SDK manager

4) Make sure i go to the "help-->Install new software" in the Eclipse and key in the dl-ssl weblink every time i re-install the Elipsce package.

5) Make sure I click "help-->check for update" in the Eclipse every time i re-install the Elipsce package.

6) Checked that I am the adminstrator of my PC

7) Run command at command prompt. I did the follwoing steps:

a. Close the Eclipse if running

b. Go to the Android SDK platform-tools directory in Command Prompt

c. type adb kill-server

************************* Return the following txt ************************

* server not running *

--> adb server is out of date. killing...

ADB server didn't ACK

* fail to start daemon *

**********************************************************************

d.then type adb start-server

Return the same txt as above.

8) I suspect some other process is occupying the port 5037 which the adb access. So I attempt to find the PID (process id) of the process which occupied the port 5037 by giving the command "D:\Android\sdk\platform-tools>netstat -aon|findstr 5037"

************************ Return the following txt *****************************

TCP 127.0.0.1:5037 0.0.0.0:0 LISTENING 3640

TCP 127.0.0.1:5037 127.0.0.1:50506 TIME_WAIT 0

TCP 127.0.0.1:5037 127.0.0.1:50507 TIME_WAIT 0

**********************************************************************

Then I go to PC Task Manager, but there is no PID with 3640.

I also type at command prompt the below:

tasklist /fi "pid eq m3640

************************* Return the following txt ************************

No task are running which match the specified criteria

**********************************************************************

Seems that the adb is not responding to any re-installation, or restarting of PC and device. The task manager shows PID 3640 but couldn't see any process related to it.

I am a electronics engineer and much a novice in this field of computer.

pls help