OP6T VOLTE and signal? - OnePlus 6T Questions & Answers

So yeah got the phone 2 day ago and pop my sim card in everything work as it should...call verizon they do add the CDMA-less SMS work..si,i do bootloadee unlock...and after roo with magisk...i do a,couple module and end up boot loop so i try use a fastboot Rom Stock by Mauronofrio but after reboot i got issue with VOLTE and after 5 minit the signal complete gone...but the weird thing after setup everything up and i figure it out trying to swith sim to slot 2 and bam everything work but today somehow it got the same way as sim slot 1 everything gone...no VOLTE or signal...it just said no service! I been try stock using same fastboot method and even relock bootloader....i check the imei under phone setring it still there and still no luck and definitely switch my sim back to my old phone and everything work...call and VOLTE,Data..i think it a software issue on my OP6T...my question is does there a,tool or such to do fully flash stock include all partition like LG phone has LGup! TIA

Well im on with Verizon tier 2 now...i dont think it a software issue...if software issue when i switch to sim slot 2 it stil not gonna work

Same problem
I am on stock. and having exactly same issue. so not a software issue.
On Verizon cdma less provosioned all worked well for a week. The suddenly no volte and no signal. After a few hours signal is back but still no volte. switched verizon sim from slot 1 to slot 2 and now all work fine.
did you get a solution?

Related

[Q] SIM card broke my two phones (can only make calls while just 2g is enabled)

Hi, I recently started having trouble with my gf's phone (Nexus 4 running lollipop 5.0, lte enabled, tmo). It started shortly after I enabled a SIM lock pin on the sim, but not sure if that's the cause or not... The phone started to intermittently drop signal, and would not make calls (it would just appear to be dialing, but you'd hear no ringing and never connect). When I'd restart the phone, I could usually make a call. I tried to fix it by restoring everything the stock image, rechecking the apn, making sure stock radio was installed, etc, but the problem persisted and eventually got to the point that voice calls did not work at all. LTE and data worked to get onto the internet, but once a call was attempted to be made, it'd lose all signal. I discovered eventually that if I switched off lte/4g/3g, and only kept gsm 2g on, I could make a voice call. Next I tried her SIM card in my phone (Note 2 on Android 4.4, t-mobile) and as soon as I put her sim in, my phone started doing the same thing. After switching back to my SIM (that was working just fine, before), now MY phone is stuck with the same problem! (Can only make calls with just 2g enabled). I'm at a total loss. Has anyone experienced anything similar, or do you have possible solutions/ideas on how to fix this?
Flash stock and unroot you'll be fine
Sent from my Nexus 4
arkangel72 said:
Flash stock and unroot you'll be fine
Sent from my Nexus 4
Click to expand...
Click to collapse
I flashed back to stock image a couple of times via wugfresh toolkit, but got the same results each time. I did, however, just fix my note 2 by removing my sim (the one that was previously working), flashing stock via odin (didn't help in recovery), and then replacing the original sim. This leads me to believe that the sim in the n4 is somehow corrupted and once loaded, permanently changes some settings somewhere. (I hope that's the problem, and not the phone). I'll pick up another sim card from tmo tomorrow and try flashing stock again before loading it. Any idea what would cause this? The only thing I did different was set up sim lock on the card, and it seemed to work just fine for a while, till it didn't... Thanks for the help, I'll let you know if the new sim works.
Solved
For anyone who may be having the same problem, here is how I solved it. I picked up a new sim card from t-mobile, flashed a stock rom via toolkit (with the sim card not installed), loaded rom, installed sim, loaded correct apn. Everything works as it should now.

No signal after reboot

Hi, I hope there s a hope..)
I got a s4 and the moment I put in the sim card I noticed that it took max 5 min to get the network working. I thought it s not a big deal. Then the wifi was not working with stock and I rooted the phone and started playing with different ROMs. Every time I did a reboot it would take up to 5 min to get the signal, doesn't matter what ROM. 2 days I did a reboot(not the first one on cm12 with alucard kernel) and the phone couldn't get the signal, not after 5 min, not after 3 h. I put the sim in other phones and it worked, I put other sims in my s4 and it worked. When I put my sim in my phone after it had been in another phone it connects right from the start but after 2 min the signal disappears. I changed ROMs, flashed the same ROM, and cm13 and again and no luck. Now the sim is on Huawei p1 and when I get the notification tray down on the bottom it is written 25905 instead for the name of the mobile operator, which is strange. Is there a way to fix this?
Thank you!
Have you considered getting your SIM card replaced?
The carrier should do it for free.
I replaced it before buying the s4. And it also works on other phones.
OP, did U try to flash another MODEM for Ur device? Not some custom ROM, but MODEM? A have some signal troubles, but reflashing MODEM (lastest version for KK) via ODIN fix the problem.
U can find MODEMs and BLs here.
This thread should be in the Q and A section...
I just did and it doesn't work. I went today to their office and got a new sim and it didn't work either. Tried another sim from the same company and it didn't work either. I have no idea what's wrong...((

Broken K920 Air China

Hello,
I had CN ROM version with Kit Kat. Everything worked fine but one day I lose sim cards. I mean sim cards weren't detected and WiFi was 'Switching On' I mean flashing. Phone is constantly restarting by itself. I've done several factory resets, take out the battery and flashed phone with ROW ROOM (I've change the NON-HLOS file to get network) but nothing helped. Flashing went ok and I've got new ROM.
Phone is restarting after few minutes. I can not switch on WiFi and sim cards are not detected. Do you have any solution for that?
Thank you!

Verizon had it working, but now on replacement axon7, no more VOLTE

Hi, I'm hoping someone else on verizon can help me here.
I am on TW (mvno) but verizon works the same, i just dont get all the towers as a full verizon customer does.
Anyway here is my setup. I have a axon 7 running RR 6.0.0-20180511, hellsgate 3.18.109, ver 2.3 & baseband TH.2.0.c1.9-. I think I have B12 bootstack but I'm not sure about that. VOLTE works great on this my org axon 7.
Now replacement came in cuz I have the screen goes half gray issue. Here is the problem. I loaded up my current setup via twrp nfound 3.2.1-7 and everything works its exactly duplicated in every way except for the change I made to go to f2fs on data and cache. I also tried a different bootstack B10-B32 same results so its not related to bootstack or modem as that is the same.
What is really odd is I can pull the sim tray and the option for "enhanced 4g LTE mode" shows up, I put the sim back in and it disappears. My thinking on this is its something to do with the phone trying to confirm my sim capabilities and not being able to. I went over to testing mode and I can try a million times to turn on VoLTE with no change at all after multiple reboots. I also tried sim swaps with old none active tmobile sims and a partially active at&t sim. This did about the same as the sim tray pull out & allowed me to see enhanced 4g LTE mode for as long as that sim was in place and as soon as I swap back to my sim it disappears.
So what is the issue? Could it be the sim & IMEI? Or is it just something on the phone (hidden trigger) that I need to change over. As I said I had this all working, on my org axon 7 with same rom, kernel, bootstack and modem. SO what gives?
I had this same issue. When you got your new phone, did you call Verizon and have them add your IMEI to their database? That's what did the trick for me.

[Question] Samsung S8+ G955F sim 1 not allowed.

Hello, recently I bought and repaired an S8+ which is still in Nougat. Silly me not testing all basic function after the repair.
I hurriedly update the phone to Pie. Last night, i put in the simcard in slot 1 and it function well in 4g connection.
Here is the problem, whenever the phone disconnected from 4g and connecting to 3g/2g connection, there is notification "Sim 1 not allowed". After discovering that problem, i proceed testing sim 2 and its normal (can even toggle between 4g and 3g/2g).
I tried resetting the phone, but the problem persists.
Atm, i thinking of flashing stock rom, maybe something was corrupted during OTA update.
How can i fix this? Or anyone have an explanation to this problem.
Thanks!

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