I didn't have any of the settings you mentioned above, only got access to dailer info screen:Yep, 0PJA110 is the AT&T variant, same as mine.
I don't have AICP 17.1 in front of me at the moment. I have LineageOS 18.1 installed on mine, but I have a T-Mobile SIM, so I haven't expected to see VoLTE settings on mine.
Generally speaking, you'd first want to look under Settings [-> System] -> About phone -> Status -> IMS registration status (this needs to be registered for VoLTE to work)
I don't know if IMS registration will show up on this AICP ROM or not. Please tell us what you see. For me on LOS 18.1, it isn't showing it.
The VoLTE setting will usually display under Settings -> Network & Internet -> Mobile network, but may not be present if VoLTE is not provisioned or the SIM card doesn't support it, or whatever the cause. Searching for it in my settings on LOS shows that it'd be under Mobile network settings if it were working, but isn't, so it doesn't show it.
You can also look in the hidden testing menu:
Go to dialer, dial *#*#4636#*#*
A hidden menu should appear. Select Phone information.
The "VoLTE Provisioned" option may be listed on this page, below Mobile Radio Power, but it may not show up.
Tapping the three dots in the top right may give you "IMS Service Status", or it may not.
Good to hear.
I haven't tried, I revived the M9 after my long-time Axon 7 died, so it's been years since I last set up the M9.Yeah, that's the same screen I get in LOS 18.1. A lot of the code is shared on stuff like this between LOS and AICP.
Didn't you say that VoLTE was working for you with this phone/SIM when you were on a previous version of AICP? If you aren't 100% sure, you should verify on the previous version of AICP you were using (or, stock) that VoLTE can be provisioned and IMS registered. If you were making calls then, then it probably was, but make sure. If you can confirm that it was working there, then it's probably a bug in this version of AICP. Given this phone is still on AT&T's whitelist, it should work on the stock ROM, unless something has gone wrong with your device.
If you test and it won't work on the previous version or stock, either, then I have read that people on Red Pocket GSMA have in the past had issues with getting VoLTE to work sometimes, but my reading of it was that it wasn't AT&T branded/whitelisted phones having this issue. Sometimes people had to call them about it, saying that their device had lost VoLTE provisioning, but that was a few years ago.
Hi, thx for your answer.I believe the first step would be to determine what the OS version is that's listed on your Download Mode screen: https://www.hardreset.info/devices/htc/htc-one-m9/download-mode/
I believe you can use that to determine what version RUU files are needed to restore to stock using the official RUU installers, if it comes to that. It could be a firmware issue. Someone elsewhere was saying that you have to install them in order, depending on what firmware version you're starting with, and you have to make sure to get the RUU installers that pertain to variant phone you have (you said it was Sprint, but you should verify that). I believe there are links that still work for these RUU files. Here's the message that was saying you have to install them in order: https://forum.xda-developers.com/t/...-19-1-unofficial.4378803/page-3#post-86934229
I don't know enough of the backstory of this phone to say if we can wipe all partitions. I'd suspect @Claymore1297 or @k4y0z would know. I noticed that people were having "SIM card not recognized" issues a couple of years ago, the Sprint variant included (see the following discussion), though I don't know whether the Sprint user got his working or not: https://forum.xda-developers.com/t/...ficial-weeklies.3967722/page-20#post-81460897flashed:
htc_himawhl (Sprint model), S-OFF with CID-11111111
RADIO-3 (4 after OTA updates)
OS-3.41.651.4 (then 4.27 after OTA updates)
Then did official updates OTA until none available.
Simcard was working.
Then format data, wipe partitions > flash AICP.
Then simcard not recognized.
#include <std_disclaimer.h> /* * Your warranty is now void. * * We are not responsible for bricked devices, dead SD cards, * thermonuclear war or you getting fired because the alarm app failed. Please * do some research if you have any concerns about features included in this ROM * before flashing it! YOU are choosing to make these modifications and if * you point the finger at us for messing up your device, we will laugh at you. Hard & a lot. * */