Volume control on the LS4278 Symbol handheld scanne

It could be the scanner is not paired to the cradle. The scanner will be once for the barcode and then four times for the communication error. Make sure the cradle has power; it will pull power from a USB port. Scan the pairing barcode on top of the cradle. The scanner will give a high low high low beep and then shortly after give a short low short high beep indicating the radios have paired. If the scanner still beeps four times after doing this, the host type may not be set. If connecting USB scan HID Keyboard from the LS4278 Product Reference Guide.

may indicate a temperature fault on battery.... here is your manual.....
https://docs.symbol.com/manuals/6983501c.pdf?userId=37

There is more setup needed and troubleshooting, please contact me so I can guide you how to get this scanner working You can always contact me by phone or email 630-622-2024 [email protected] Please visit our website www.legacyglobal.com

reinstall the battery .

The scanner will probably give you error beeps because you are not using a PS/2 keyboard. All you should have to do is scan the IBM AT Notebook barcode from the LS4278 Product Reference Guide. The link below will take you to the manual and the barcode is on Adobe page 104 of 418. I would suggest saving a copy then printing just the page you need.

If the scanner does not start working immediately you should reboot your computer.

LS4278 PRG:
http://support.symbol.com/support/search.do?cmd=displayKC&docType=kc&externalId=6983403apdf&sliceId=&dialogID=116526806&stateId=0%200%2011869362

Hi, I would be happy to assist you in resetting your LS4278, but it would be helpful to know how you are connected. The Set Defaults barcode will reset all of the scanner settings, but it will also cause you to lose the "pair" (communications) between the scanner and cradle. If you try scanning a barcode at this point you will receive a single beep followed by four error beeps. This just means the scanner is not talking to the cradle. Scan the barcode on top of the cradle. The scanner should give a high low high low series of beeps followed by a short low short high. The short low short high indicates the scanner is talking to the cradle again and you are ready to scan.

If you are connected through the USB port and scan a barcode and get one beep, but do not see data on your host try unplugging the black power supply cable from the cradle. Try scanning your barcode again and it should show up on the host.

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The four beep error is a communications error. Usually it indicates the scanne is not configured properly. If the scanner is connecting with the CBA-K01-S07PAR cable and you are using a PS/2 keyboard you should have scanned the IBM PC/AT barcode from Adobe page 56 of 342 of the LS2208 Product Reference Guide.

If you do not have a PS/2 keyboard attached and are using a USB to PS/2 adapter you should scan the IBM AT Notebook from that same page. If the scanner does not start working immediately you may have to reboot your system. If the scanner still does not work the CBA-U01-S07ZAR USB cable might be a better choice.

If you are not connecting with either of these cables and are still getting the four beep error a call to the Motorola support center may be in order. Their phone number is 800-653-5350.

I had the same problem with LS4278, you need to configurate your keyboard and scanner in the same regional and language options

Hello, it looks like the scanner lost the settings. As power is there, so connection is ok. The several (four) beeps after reading the barcode means communication error.
Please try to find the original sheet with configuration barcodes or download it from support.symbol.com website, you would need to scan the barcode for IBM PC/AT & IBM Compatibles from Keyboard Wedge Chapter.