Default Question

I want to download the new dandroid ROM and I'm running 4.1.2 with the dandroid 4.7 ROM want to upgrade to the 4.3 and the dandroid 5. Now it says I need to upload a 4.3 modem and boot loader. Does it matter what boot loader and modem? I am on a S3 I747 on a rogers Canadian. Can someone point me in the right direction please thanks

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