I too have the same issue post v1.3 update. I updated using Pod Go Edit as the updater didn't recognise the device at all - just said "select device" but there was not any devices shown. I'm going to try the update again v1.3 again
Update: I updated my Line 6 Updater program, now it sees the Pod Go Wireless and offers the v1.3 update - which I did. Same effect. No lights on the G10TII, No charging indicator, Downgraded back to 1.22 - lights initially flash on the transmitter and then go out. Display panel indicates "No Tx Found"
Downgrade to v1.2 - now the display panel shows charging. I'm going to leave it charging for a few hours and upgrade again.
I'm wondering if the problem was that, as these were both new units, the TX battery was flat when the update was run.
Left "Charging" for 2 hours no change, re-updated to v1.3 and left charging overnight - still dead. I'm returning the unit a faulty. Purchased from PMT on-line (UK) who were very helpful. Offered to send just a repayment G10TII if it was easier - but I don't know if its the floorboard not charging of the remote so elected to send it all back sadly.
When the replacement arrives I'm going to charge it all up and test it fully *before* upgrading !