I'm sorry to be a pain in the ars*. But you've mentioned you're basing on .144 stock update right? Having said that the link you posted with the zip to update bootloader Ive found files mentioning 4_21_40_134.bin (.134) wouldnt this be the reason sensors arent still working for brazilians devices? I had a look at Asus website and this is fix has been implemented on .144 update. So is this update on script and files updating bootloader or are they on the ROM itself..
Now I know the rules on XDA and I wouldnt dare to ask for ETA, however if this is the case, I would ask very politely if you could update the scripts files to .144 whenever's convenient for you and whenever you have time. That would be much appreciate. I will be coming back to this post and will be waiting anxiously for this.. Take you time and Thank you again.
I will be looking into it cause sometimes even I have my semsors failing, can't say for sure, but yes we will give our best to get it fixed