Unable to lock chain <Hardware disabled> - Unable to lock chain <Hardware disabled> Description You may receive the "Unable to lock chain <Hardware disabled>" message if you have a development kit with an on-board USB-Blaster™ II plugged into your computer and also have an external USB-Blaster plugged in. This is causing a conflict and locking the JTAG chain. Resolution Unplug the external USB-Blaster from the computer and you will now be able to use the on-board USB-Blaster II. Custom Fields values: ['novalue'] Troubleshooting novalue False ['novalue'] ['novalue'] novalue novalue ['Programmable Logic Devices'] ['novalue'] ['novalue'] ['novalue']