Help! Stuck currently mid install!

Hi and Help!

Installing v3+ wireless starter kit. I have replaced the wired thermo as directed with bridging no problem.

I have now got the casing off the Horstman 2 channel H21 XL and reviewed the wiring. The Tado installation guidelines ask if there is 0 / 1 / 2 bridges in place - but I have 3!

The bridges are on terminals:
L&1
1&5
3&4

I thought this was going to be straight forward but now terribly stuck and wondering if I should undo the work I have done?

I’ve contacted Tado support on the app but no response back yet.

Thanks in advance!