mobile

So I've done some research into this and it seems that the consensus is that it is not possible to flash an ATT rom on a Sprint HTC one, however the phone I currently own (purchased second hand) seems to be a sprint phone (there's the logo on the back and there's the sprint splash screen that pops up when the phone starts) with a what appears to be a ATT baseband and rom flashed to it. The following information is listed on my phone:

Kernel version: 3.4.10-ge12f77e root@abm012 #1 SMP PREEMPT
Baseband version: 4T.24.3218.09_10.26.1718.01L
Build number: 4.18.502.7 CL302626 release-keys
Browser version: Webkit/534.30

Re-locked
HBOOT 1.56.0000
Radio-4T.24.3218.09
OpenDSP-v32.120.274.0909
OS-4.18.502.7
eMMC-bboot 2048MB

Would it be possible to replicate this on another sprint phone that is unlocked, rooted and S-OFF? I followed every step of this guide (http://forum.xda-developers.com/show....php?t=2665954) on a new sprint htc one in order to try to get it to accept a cricket SIM and work properly but even after doing the GSM fix in the thread the data/signal still constantly disconnects. While on my old phone everything works flawlessly.

Apologies in advance for any missing information or inaccuracies since I am relatively new to this all.