2012 LB Yaris ZR won't enter remote programming mode :(

[yojabbajabba]

Hi YW members,

I've picked up a 2012 Yaris ZR 3-door recently which only came with one master key. I purchased a couple of OEM keys from eBay to have as spares. I have managed to successfully program the immobiliser transponders using Techstream, but am really struggling to get the wireless remotes to work - the techstream app wouldn't recognise when I pressed the lock/unlock buttons on the new key, and when following the non-techstream way of programming the key it won't enter programming mode (lock cycle on-off to confirm that the programming cycle was successfully entered).

Here is the guide I used for entering the programming cycle without using techstream:
https://www.lsc.com.au/content/Docum...structions.pdf

Any help would be greatly appreciated :)
A