[OnePlus 7 Questions & Answers] SociallyIneptBoy:
READ THIS FIRST

This post is NOT about doing anything on T-Mobile. T-Mobile is NOT Verizon. Their names don’t even look similar. If you want to discuss getting this to work on networks that I am not posting about, please take that discussion to a post that is actually about that. Thank you.

Also, my apologies for the terrible formatting. For some reason, I can't get this to post from my desktop and I haven't got the energy to spend another hour and a half going through the hell of reformatting this from my phone. I will try to sort this out and clean it up later.

READ THIS FIRST

With that out of the way, I’ve seen several posts claiming it works (one Amazon review that went into detail talking about getting it to work in rural Utah, then a few forum posts here and there), but nobody’s posting a whole lot of detail on the subject in any one place and I need to get this sorted out because I just bought one and only have so long before I have to return it. That being the case, rather than continuing to try and stitch ideas together from a bunch of vagueish posts from all over the web, I figured I’d try and start a smallish megathread on the subject, that way any and all answers are in one place, and we know what to slap Verizon with in the future.

TL;DR, it looks like everything works fine with this phone on Verizon, except for SMS/MMS, after pulling a SIM out of my Verizon-issued Galaxy S6 and installing it into my OnePlus 7, with no other changes on the phone by Verizon. Now on to the details.

What I’ve verified works so far:

· Making & receiving phone calls

o Have made and received calls to & from friends.

o Have mad and received calls to & from Verizon Support.

o Have received several calls from telemarketers.

· HD Calling

o Verified option is enabled on Verizon Wireless website.

o Verified operation when making & receiving phone calls

· VoLTE

o Symbol shows up in top bar, just before signal icon.

o Pretty sure the previous items wouldn’t have worked without it.

· LTE+

o Symbol shows up in top bar, as part of signal icon.

o Not sure how to verify any further, or if verification is needed.

· Sending & receiving email

o Have sent email from account attached to phone to unattached account accessed from desktop.

o Have sent separate email back to attached account.

· Searching for, downloading, and installing apps from Play Store

o Downloaded and installed base Google SMS app.

What I’ve verified doesn’t work

· SMS & MMS

o Have sent myself SMS and MMS messages.

o Have been sent SMS messages by a friend and Verizon Support

What I’ve tried so far:

· Turning on Developer Mode

o No particular reason, but it opens up options, so why not.

· Switching to OG Google SMS app.

o It comes up in pretty much every SMS troubleshooting post I’ve ever seen, so I figured I’d get it out of the way.

· Setting Network Type from CDMA to LTE (Not 100% certain on this)

o Cannot configure this from the relevant item in the regular settings menu.

§ Path was “Settings->Wi-Fi & Internet->SIM & Network Settings->Preferred network type”.

§ The setting was there, but greyed out and unselectable until after turning on Developer Mode, changing setting in test menu, and restarting.

§ Default value is “2G/3G/4G (Automatic)”

§ Only other options are “2G/3G (Automatic)” and “2G only”.

o Went into the test menu that comes up when you dial *#*#INFO#*#* (aka *#*#4636#*#*) and set “LTE Only” there.

§ Path to this variable is “Testing->Phone information->Preferred Network Type”

§ Pretty sure original value was “TD-SCDMA/CDMA/UMTS”, but I messed with this in a hurry.

§ Changed to “LTE Only”.

· Tried to get Verizon to enable “CDMA-less” over the phone

o They put me on hold several times for a grand total of well over an hour and insisted it wasn’t allowed with my phone.

o Level 1 slipped up and admitted that people above them were just “clicking around” online when this was going on, but Level 2 (not certain this one was Level 2, but they talked like they were).

o Level 2 insisted Level 1 did not have the ability to enable “CDMA-less” but that doesn’t add up with what Level 1 was saying or what I’ve seen elsewhere.

· Tried to get Verizon to sync my network and billing profiles.

o Supposedly necessary for support to be able to access the option to enable “CDMA-less”

o Level 2 says they tried this and had me restart my phone, but nothing changed.

§ Not sure I buy this, based on what I’ve seen about this part elsewhere, but some corporate moron decided that a weeknight was the perfect time to take the website down for upgrades, and that’s the only place I can even remotely verify this one, if I even can, at all.

· Reaching out to those who have claimed success

o So far, I’ve only left comments on the Amazon guy’s review and answer, because the rest were in a 50+ tab deep window that is already long gone and I was too fried to keep track of any of it anymore, but I’ll try and find some of them once I have enough free time.

Things I’ve noticed that look problematic

· There is an “SMSC” section further down in the “Testing” menu where you enable “LTE Only” that does not appear to be functioning correctly

o I expect this is due more due to CDMA-less not being enabled than anything else.

o This section has the following buttons

§ Update

· Causes the words “update error” to appear next to the section header

§ Refresh

· Causes the text string ‘”+19037029920”,145’ to appear next to the section header and not go away, even after clicking “Update” again.

o Header blanks out again after backing out of this screen

o First part of string is phone number tied to VZW text functions and appears to be what should be coming up when I click “Update”.

§ Toggle DNS Check

· Starts out with the words “0.0.0.0 not allowed” next to it. Clicking changes them to “0.0.0.0 allowed”.

§ OEM-Specific Info/Settings

· Greyed out/unselectable

· APN Settings look to be incorrect (I DO NOT HAVE AN OPTION TO ADD OR EDIT)

o Basing this on the info in the following URL’s:

§ EDIT: Looks like I can't post links yet.

o Not all of the data adds up on the first page, especially regarding the available bands, but it explicitly specifies that the APN needs to be all lowercase, which is not the case on mine.

o Based on the info on these pages, my definition has the following discrepancies

§ The actual APN value is in all caps, rather than all lowercase.

§ “MMSC” and “MMS port” are blank

§ “MCC” is 311, rather than 310

§ “MNC” is 480, rather than 012

§ “APN type” is set to “default,dun”, rather than “default,supl,mms” or “default,internet,mms”

§ “APN protocol” is set to “IPv4/IPV6” rather than just “IPv4”

§ “APN roaming protocol” is set to “IPv4” rather than being blank

§ “Bearer” is set to the following, rather than being blank

· HSPA, GPRS, EDGE, eHRPD, UMTS, LTE, HSPAP, HSDPA, HSUPA

o Once again, I DO NOT HAVE AN OPTION TO ADD NEW APN’S OR EDIT MY EXISTING ONE.

§ Sorry for the all caps, but I’ve seen a lot of people not pay attention when other people try to explain having this problem.

Things I haven’t tried yet

· Moving my SIM card to slot 2.

o I saw someone mention having this solve things for them in a 6T thread.

· Getting a new SIM

o Same as above. I’ve had this SIM for at least 4-5 years, possibly longer, as I don’t know which phone I first got it with.

· Pressing Verizon on the fact that people were able to get CDMA-less to work with 6T before it was selectable on the website.

o Their excuse is something to the tune that they can’t enable it because the option isn’t selectable for my phone. Between what I was seeing about this in the 6T forums and the Level 1 tech letting slip that they were working with people who were “clicking around”, I’m a little concerned that they were all just on the website, rather than an actual backend system where something like this ought to be.

· Pressing Verizon on whether or not my network and billing profiles are actually synced.

o They didn’t even mention that they had “tried” it until I brought it up myself, and there were several things they should have known at that point that also didn’t get brought up, so I’m a bit dubious as to whether they actually did it or not.

· Pressing Verizon on using the feature numbers to enable CDMA-less.

o I saw a few forum posts for other phones, including 6T, that implied this doesn’t go through the same system they’re using that requires a phone to be “allowed” to go CDMA-less.

o I mentioned it to the Level 2 tech, and she kinda scoffed, then immediately changed the subject.

o I’ve seen two numbers mentioned

§ #SPO732

§ #83856

· Having my SIM put in a dummy phone that’s “allowed” to have CDMA-less and have it enabled there.

o Came across this forum post

§ EDIT: Looks like I can't post links yet.

o Post implies it’s possible to “associate” your SIM/IMEI with another phone that is allowed to be provisioned as CDMA-less, get everything set up there, then have the SIM “associated” back with your actual phone.

o Language is a bit fuzzy, indicating a potential lack of understanding of what actually happened by the poster, and Level 2 flat out said they didn’t have dummy phones available to do that with, but did say that such things are pretty regular at brick-and-mortar locations.

· Putting a dummy GSM card in my other SIM slot to enable APN editing

o Supposedly that makes it possible, but I have no dummy GSM cards available. Will try to also do this when I go to brick-and-mortar location.