I rooted a few months back with unrevoked 3.2 (I believe) and I live in a non-4G city. Everything works well including wireless tether, the main reason I rooted. I never flashed a custom rom, although I did upgrade to 3.70 using this method.
Yes you can do the OTA update if you've unrevoked forever..here's how! - Android Forums
So, I've been reading about how to check for WiMax keys and I'm concerned they might be gone. If I use root explorer, there is no mtd0 directory in /dev/mtd/.
I have to be in recovery to use busybox (I don't know why) but the grep command does not return anything, even the lines starting with RSA-.
I don't know when Sprint is going to bring 4G to San Diego, so it's possible I will have moved on to my next phone by the time they do, although I can't imagine that now as I really love my EVO. But I would like 4G to work if I were to visit my daughter in LA. The returns I get from ADB usually error out with 'bad pipe' or some other nuts and bolts message instead of returning the lines always shown regarding WiMax keys.
So, as long as this is a 'for dummies' thread, could someone explain in excruciating detail how to check my WiMax keys? Maybe I'm worrying for nothing.
Thanks in advance.
OK, that's a big never mind. I had been using titanium backup and although it does install busybox, the path is not added for terminal emulator to use. I re-read this thread and saw that you could install busybox from the market, so that's what I did. Then did the subsequent install from the app.
I'm pleased to report that my WiMax keys seem to be fine as I am now getting the expected result from the grep command. I hope this post can help someone avoid the worry that I had over the past several days.