How to pair a symbol CS3070 bluetooth scanner with a nexus 7 (2013) tablet The pairing code asks me to type on the device which has no keys.  Is there a work around?
You don't type.  You scan in barcodes of the numbers you need.

See step 6 of this guide for the barcodes.  These barcodes can also be found on page 1-21 of the manual.