You can't switch to Tier 4 within the UK. You have to go back home and apply from there. You need a CAS from the school, show maintenance funds, proof en English language... and demonstrate that you are a genuine student. Thanks for the reply! I think we may have the word "switching" confused. I do...

Thanks for the reply! I think we may have the word "switching" confused. I don't mean the the UKVI's definition of switching, rather I mean entering the UK with one visa and remaining with another. I will be applying from my home country BUT I will be leaving before my application is ultimately done...

For context: My course is less than 6 months and I can apply for a short-term study visa on arrival in the UK. I plan to apply for a T4 visa while still in my home country but travel to the UK before I get the results on my application as the course starts before I'm supposed to get my results, wors...