Radio Issues...I think...

[laithis]

Here's a problem that's stumped me for over a month now...

I bought a 6700 off ebay (advertised as a sprint phone). When I got it, turns out it was flashed to cricket.

I got the stock Sprint ROM and reflashed the phone. When I hit *2 though, it still said "welcome to cricket." So I manually installed the latest PRL. That seemed to fix it - at least now it said "Welcome to Sprint" when I dialed *2.

But when I swapped ESNs and activated the phone, it couldn't send or receive calls - except to Sprint Customer Service (I could talk to them just fine!). Every other call I tried to make gave me a "your account could not be validated" recording.

So I began to use this phone as my "test kitchen," playing around with the various builds - and something odd happened. I flashed to 20755 and suddenly I had no radio! I thought maybe I'd figured out my problem - the phone needed a new radio (or the thang had just gone pfffft...).

So I installed the 1.45.00 radio repack. Radio's now back, and I can still talk to Sprint Customer Service, but no one else. Doesn't make sense to me - if I can dial out to them, the radio's obviously working...so what's the hold-up??

Anyone have any ideas? Sprint swears up and down that the phone is activated. I took it in to a store for a tech to look at it, and honestly you guys, every one of you knows TONS and TONS more than those guys do!!!! (in other words, no help there. They swear the phone's not fixable).

I just don't buy that - but am cluelsss as to what I might be missing. Are there any files that the stock ROM won't automatically overwrite that might still be "pointing" to cricket?

Also, when I dial ##akey# (or any of the other codes) it goes to the EPST screen and asks for an unlock code. I had always assumed that meant the 6-digit unlock code Sprint gives you to activate the phone (e.g. MSL) but on this phone it doesn't work. Any links to a tutorial on how to solve this?
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[EDIT: I've already searched here AND googled it. I've tried the code that GetSPC generated, as well as the one generated by the convertor at http://www.elfqrin.com/esndhconv.html . Nothing works. So please don't think I'm a *completely* brainless n00b... ]

thanks...LOTS...for any help or suggestions....