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There is some relevant information in this link > Vodafone Firmware Statement.
As they cannot give timeframes its best practice to keep checking the software update section in the phone.
To flash a custom rom / firmware onto a phone I would suggest visiting the xda developers site to learn the pro's and con's of doing so.
Link > xda-developers.com
Ok. It's page does have a link to its source code, except it gives me code for the smart 4 power, which is completely different. If I used it, my phone would be in an unrecoverable state.
Hi, its never a good idea to install firmware thats meant for a different device, whilst I cant say for certain it wont work, from reading stuff like this for years you are more likely to brick your phone in my opinion, not a risk I would want to take.
No stock ROM? It's not that my device is broken; it's that the magority of things available on XDA and similar websites all require the sources. I've been wanting to port over Android Nougat and Ubuntu Touch for some time now.
At least remove the "open source code" link; it'd be bad if someone accidentally flashes the wrong thing.