This article explains how to troubleshoot VariPOS 850 devices. 

Removing the back lid

All cables on VariPOS 850 are managed behind a back lid that in some cases needs to be removed for troubleshooting purposes.

• To remove the lid, slide it upwards:

Disconnecting the blackbox (Sweden)

• In case blackbox needs to be disconnected, remove the back lid as described above.
• With the back lid removed, locate the blackbox device: 

• For more info on how to identify blackbox devices, check out Blackbox: Sweden (skattebox).
• Follow the cable to find the USB that it is connected to. To disconnect it, pull on the USB connector upwards:

• If you are disconnecting the blackbox for blackbox troubleshooting purposes, wait a few seconds and connect it again. 

Enabling DHCP

If device has lost connectivity to local network but the network interface LED is on/blinking, it is a good idea to try to enable DHCP on device. For info on how, check out Enabling DHCP on VPOS.

Replacing a disk

Replacing a disk on a VariPOS 850 device is a fairly straightforward process. Make sure the device is shut down and unpowered.

• Remove the back lid as described above.
• Locate the disk on the back side of the device:

• Remove the screw holding the disk cradle in place:

• Slide the disk cradle upwards to remove it from the device:

• Remove the four screws holding the disk in the disk cradle:

• Replace the disk, making sure the contacts are pointing the same way as the old the disk, and put everything back in place::

Replacing RAM

Replacing RAM on VariPOS 850 is too complex to be performed by our customers. Please contact Support to book a technician that will perform the RAM replacement. 

Reseting BIOS settings

• Shut down the device and connect an external keyboard to it. 
• Start the device by pressing the power button and press Delete on keyboard in rapid succession.
• Using the keyboard arrow keys (right), navigate to Exit page, select Load Defaults and confirm with Enter and Enter again:

• Select Exit Saving Changes, confirm with Enter and Enter again:

• The device will now restart.