Symbol MC9090 Barcode Scanner cannot enable scanner error code "A0000008"

Most likely you need to download and install Datawedge. See here for solution. Symbol Motorola MC9090 Will Not Scan

Download ScanSamp2.exe and upload it on your device via USB (Activesync) or via SD card and start it.

The scanner engine/output can be used only by one application. If a second application is trying to access the scanner, while in use. The error message will come.
Please check if there are more applications running in background. Usual MC9090 applications with scanner drivers are Telnet, Datawedge, Rapid Deployment and custom software.
Exit one of the application or try to exit all of them. Start your scanning application again, no error should appear now.

You need to reflash complete OS.

Warm boot the MC55 if that doesn't help then cold boot it, if that doesn't help then reload the Operating system, if that doesn't fix it then send it back to Motorola for a warranty repair.

You may need to reflash the OS. you can normally download it from symbol webpage. you will need a cradle and an SD card.

Hello,
If you are willing to use VB.NET, then it will be easy. You would need the Symbol EMDK. With that and VS2008 (Express should be fine as well), you only need few coding steps:

1) Add reference to dlls
Symbol.dll and Symbol.Barcode.Dll

2) Finder a scanner
s = Symbol.Barcode.Device.AvailableDevices.First()

3) make a reader
r = New Symbol.Barcode.Reader(s)

4) add data
d = New Symbol.Barcode.ReaderData(1, 1024)

5) enable laser
r.Actions.Enable()

6) enable reading
r.Actions.Read(nrd)

7) add handler
AddHandler r.ReadNotify, AddressOf r_ReadNotify

8) read data in event
msgbox(d.Text)

That is all there is too it. Good day.

sounds like it's not aware of the wireless network.

It can read all standard symbologies apart from PDF symbologies unless it is equipped with an imager scan engine.

You have to use a program which will activate the scanner.

You can use DataWedge, which will send the scanner input to whatever has focus: https://docs.symbol.com/KanisaPlatform/Publishing/968/KB100417_f.html