Hey, go to the Firmware Forum and read my link.
This works for the LTR=52327S.
And BTW, I made another so you can downgrade as well.
This is only useful if you don't have .bin files or, do not want to use Kar's killer LTN-Flasher proggie.
I did this a year ago for the LTR-40125S to LTR-48125W and back. They seemed to help those who did not want to mess with mtkflash.
Anyway, for you guys who do not want to mess with .bin files, pm me and I'll email you them.