Right. I've had, and still have, Desire HD which has been a good old device for the last 4 years, still works fine apart from the GPS. But as it's getting a bit geriatric now and I have a little spare cash (and, more importantly, permission to spend it from SWMBO ..
) I've gone for an S4 (black, 16GB, still locked to Vodafone but as I'm with them that's no problem). Now, I've had the DHD rooted for ages and played about with differing ROMs so the theory is fine as is practice with a DHD, but it seems to be a longer learning curve with the S4. I've been reading about this forum, and xda, and learnt a lot quickly but I still have a couple of queries. Maybe they've been answered in what I've read but I've missed them by skim-reading, in which case just reply with 'Are you blind, the answer is here ... [insert relevent url] ...' ! 
The S4 is second-hand and has just been "... updated to the latest Android version a few weeks ago ...". No idea which version though I did ask but I'm assuming this could include the latest Knox version?
Questions:
a) from what I've read I can still root the phone even with Knox installed. It's just that the efuse is triggered? And I have no problem with that as if I got a job with a company that cared about this they could supply the phone anyway!
b) for rooting the "latest android" version the 'dummies guide' is still applicable?
c) unlocking the bootloader. From what I've read this is nigh on impossible?
d) usb cables. I normally use a Nokia cable to plug into my phones. Not tried it yet with the S4 (as I haven't got it) but I assume this will be fine? If not, any links to suitable cables?
e) SIM card. Micro-SIM I believe? If so I need to get my (normal size) SIM cut down.
Thanks in advance!
Dave


The S4 is second-hand and has just been "... updated to the latest Android version a few weeks ago ...". No idea which version though I did ask but I'm assuming this could include the latest Knox version?
Questions:
a) from what I've read I can still root the phone even with Knox installed. It's just that the efuse is triggered? And I have no problem with that as if I got a job with a company that cared about this they could supply the phone anyway!
b) for rooting the "latest android" version the 'dummies guide' is still applicable?
c) unlocking the bootloader. From what I've read this is nigh on impossible?
d) usb cables. I normally use a Nokia cable to plug into my phones. Not tried it yet with the S4 (as I haven't got it) but I assume this will be fine? If not, any links to suitable cables?
e) SIM card. Micro-SIM I believe? If so I need to get my (normal size) SIM cut down.
Thanks in advance!
Dave