[Q] Rogers ROM on a Telus phone?

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http://forum.xda-developers.com – I am using unlocked Telus SGH-i747m galaxy s iii on fido. The LTE symbol doesn't show up in the notification bar. It shows 4G symbol and then no symbol for a minute and then 4G again. I used the exact same phone/software/rom on Bell and LTE worked just fine before I switched to Fido. Can I try to use the Rogers stock rom on my Telus phone? Will it brick my phone? (HowTos)