[Sprint HTC One (M8)] mswlogo:
As some of you may have read, my phone is somewhat hosed.

I have a new one on the way (which might be a refurb). But I have nothing to lose playing with this one.

I highly suspect, one or more of the bands are disabled.

If you google around you see lots of folks fiddling around with Band Priorities and/or Enabling. Especially with "TirBand" phones (which this is). (Nexus 5 and HTC One, HTC One Max).

Most of the time people access this through EPST using ##4636# but my phone does not respond to this.

But the Galaxy S5 and HTC One (M8). Are in new Territory with Spark and even more bands I believe. So their might be new Menus for these phones and that info has not been leaked out yet.

Currently if I'm in a formally strong 4G area I get great 3G (no 4G at all). Yes 4G is enabled.

If I'm in Moderate to Weak 3G area. I get 1x or nothing. It really feels like a Band got shut off.

I'm not sure what caused it.

I was running Corporate PRL (56018). That seemed to not be causing any harm. Ran it for a few weeks.

Ran Barebones 1.0 (on stock firmware) and that ran fine too. After that it was down hill.

My only issue was Roaming Guard was on and Locked out. Which others have reported is a long standing issue (was a problem on M7 too).

All I needed to do was do a Full Wipe and enable it before it gets locked again. Not everyone has this locking issue, but MANY do.

I updated to OTA firmware. Not sure of status here because I had WIFI on normally.

Then I decided to run BadBoys Harman. Without firmware. Again not sure of status here as WIFI was on.

Somewhere I believe I did an Update Profile. I suspect at that point I was hosed.

It was when I put BadBoys on that I noticed an issue because he shows when you are on 1x.

Not sure if I started to see 1x that was before or after update profile.

I don't know if it's combination of having been on the corporate PRL when I did the update Profile or what.

I always try to do update Profile over mobile network.

I was not clear what the problem exactly was until I "Fully" upgraded (Harman with Harman firmware).

Just to be clear, I'm not blaming anyone but me. And there may be nothing wrong with anything out there than more or my phone. I just don't know.

I highly suspect it's something trivial that got turned off or the phone so happened to lose a band or antenna.

But I suspect it's some combination of SuperCID, Corporate PRL, new OTA Firmware or Harman Firmware along with Update Profile hosed me.

I do have new phone on the way. But I sure would like to know what happened.

I didn't do anything "out of bounds" from this forum. I simply may have done things in a different order or something.

I am S-OFF and running TWRP 2.7.0.2

I have reactivated, wiped the gazoo out of it. Ran Harmon RUU. etc.

I sure wish there was an RUU for the Shipped Config. Or even for the OTA version.

Seems a coincidence the phone "Broke" just when I started Flashing Firmware and Updating Profile.

I know I was good on Stock Rooted, S-OFF, Corporate PRL. Because I'd even see 4G at my house occasionally which is a reach. Now I'm lucky to get 1x at my house.

I will tell you this, I'm staying on Stock Firmware and Stock PRL when the new phone arrives until more is learned.

I will try to compare phones as best I can.

Which is another reason I sure would like to see the Band configuration on this phone so I can compare it to the new phone.

Thanks for any tips.