I believe the last tmobile OTA update broke my 4G/LTE, questions inside. - T-Mobile Samsung Galaxy S7 Questions & Answers

I believe the last t-mobile OTA update broke my 4G/LTE, was working fine before but now nothing at all. Only Wifi works. -- I took it in store and we did a new sim, some resets, nothing worked there, was going to warranty RMA the device but there's a small crack at the top of the back glass which voided the possibility of doing that.
I'm very experienced with Root, I've done the Note 3, 4, and 5 before so I'm comfortable doing that. I think a root and flashing... pretty much anything else might fix it. Am I being stupid? What do you guys think, any thoughts would be appreciated.
Sorry if this a easy known issue with an easy fix, that'd be great and I don't think so, but I wouldn't exactly say I'm in the loop as far as the S7 goes.
Thanks, hope to hear from anyone soon!
- Simon

Do you get 2G "Edge" service? or nothing at all?

You're not crazy after updating I lost all cell service. since downgrade isn't possible i had to flash 930U firmware, fixed that issue and performs much better...there's a thread on here with more info...hope that helps

Sorry for the slow response guys, thanks.
esjames said:
Do you get 2G "Edge" service? or nothing at all?
Click to expand...
Click to collapse
Nothing at all.
noizyboy said:
You're not crazy after updating I lost all cell service. since downgrade isn't possible i had to flash 930U firmware, fixed that issue and performs much better...there's a thread on here with more info...hope that helps
Click to expand...
Click to collapse
Oh wow ok, this is actually good news for me. Can you go into a little more detail on what you did. Maybe link me to the thread about it and/or the download to the firmware. Thanks!

This happened to my dad's S7 as well. Was working fine after update and then suddenly nothing except wifi.

The Nov TMO update has great battery optimizations.
http://imgur.com/a/iToWI

I am also having the same issue with my wife's S7. In fact, exactly the same as the OP, including the warranty void due to a small crack on the back cover. Performed the OTA and everything seemed ok for few hours afterwards. Woke up the next morning and discovered no network, no signal but yet WiFi functions fine. I went through all the initial checks and resets and nothing worked. Swapped Sim cards, uninstalled some apps and yet nothing until the last app uninstalled. Mobile network became available as soon as Milk Radio finished uninstalling. I know that this is by coincidence but hooray.... And of course a few hours later, Error Registering On Network. Factory resets, hard resets and nothing. I'm out of ideas and luck. And you gotta have a lot of luck with T-Mobile insurance. Any ideas or help with this issue would be greatly appreciated.

What can T-Mobile S7 flash? Anything?

forum.xda-developers .com/tmobile-galaxy-s7/help/sm-g930u-flashes-to-sm-g930t-t3480070
Most of the Info is here also the firmware and tools needed, there is also a guide.... I had to sim unlock my phone before proceeding

Well, I updated to the most recent PK1 and I'm still getting network errors. Status, radio off, network not registered, signal is dead 113dbm. Looks like I'm going to pay the $175 insurance deductible and hope for the best. Best of luck for the OP. Hope you figure it out.

On my S7edge the new update drastically hurt my signal for 4g.. I ended up flashing the U firmware and am using the previous tmobile cp file (PIA) on my phone and got back the signal that I had lost.. This could be a possibility for yall too... Install the 930 U firmware and replace the U cp file with the tmobile PIA cp file for your device and you should gain back your network signal.. I plan on trying this on my sons S7 over the next day or 2 once I get all the files downloaded...

Related

No signal - Reflashed 3 times

Today my phone has been switching from no signal to signal
and now it refuses to get any signal
i have tried changing the radio
reflashed stock rom
then reflashed a modded rom
and each one has the same result ...
any other ideas what could be wrong?
i get signal if i put the sim in another phone
so its definately phone related
make sure the radio matches the rilphone.dll?
yep
same .dll from the radio package
have a feeling its some internal problem
cuz the sim is fine otherwise
grr
What about Edge?
I had a LOT of frustrations with mine a couple of weeks ago, then, just to play a hunch, I disabled 3G, and went back to edge and it worked perfectly. Sent an email to the deathstar, and they sent back saying they were having 3G problems. Reading over on boygeniusreport.com, a LOT of people are having trouble with 3G. At&t doesn't have the bandwith to support all the apple iPhone fanboys I guess.
Probably not what's causing your issue, but might be worth a try...save you from pulling your hair out.
Vish112 said:
Today my phone has been switching from no signal to signal
and now it refuses to get any signal
i have tried changing the radio
reflashed stock rom
then reflashed a modded rom
and each one has the same result ...
any other ideas what could be wrong?
i get signal if i put the sim in another phone
so its definately phone related
Click to expand...
Click to collapse
First Take your Phone out of the Faraday Cage.
p51d007 said:
I had a LOT of frustrations with mine a couple of weeks ago, then, just to play a hunch, I disabled 3G, and went back to edge and it worked perfectly. Sent an email to the deathstar, and they sent back saying they were having 3G problems. Reading over on boygeniusreport.com, a LOT of people are having trouble with 3G. At&t doesn't have the bandwith to support all the apple iPhone fanboys I guess.
Probably not what's causing your issue, but might be worth a try...save you from pulling your hair out.
Click to expand...
Click to collapse
If this doesn't help, disabling 3G, you may have to do a warranty exchange.
left battery out all night (last night)
then i reconneced it this morning
and everything seems to working fine
must have been some internal static
thanks dudes

[Q] Bought Used & Has Problems - What Should I Do?

Hi everyone. Just to start out, I am completely new to the Android world – I’ve tried to read up on these forums and whatnot but I am definitely a noob. I am coming from Apple, and long story short, I’m tired of iPhones and got myself a Galaxy S3 via Swappa in order to keep my unlimited data plan. It was previously rooted, but I requested that it be restored to stock.
I have been unable to get to a Verizon corporate store to get a sim card and activate the phone, so I’ve been using it on wifi around the house. I am having signal issues with the wif – it works everywhere except in my room. The signal shows as weak and keeps dropping every few minutes. My other devices have a strong signal. I have downloaded various wifi analyzer apps from the Play store, and they all show the wifi signal as really weak.
I searched and found numerous threads that this is an issue with some of the phones. I tried messing with settings (factory reset the phone, the router, did the *#0011# and turned wifi power saving off, changed the "keep wifi on during sleep" from always to never, etc) and nothing fixes it.
I would like to know what you guys recommend. Should I go ahead get a sim, activate the phone, update to Jelly Bean and see if that fixes the issue? I am unable to get the update since I do not have service. I tried to update via Kies, but it says current firmware pda:lg1 phone: lg1 csc: lg1 (vzw) not supported.
Or should I tell Verizon about the problem and see if they will go ahead and replace the phone? I’m not sure how that works since I am not the original owner. I’ve read that they honor the warranty based on the purchase date which is tied to the IMEI number, and not the owner’s name. Not sure how true that is… Also on the box, it says Verizon 4G LTE Certified. Not sure if that means my phone is already a certified replacement or if all the boxes say that. I haven’t been able to find that out.
I’ve read the thread about resetting the phone to return to Verizon. The flash counter screen reads Odin mode, product name: SCH-I535, Custom Binary Download: No, Current Binary: Samsung Official, System Status: Official, Qualcomm Secureboot: Enable. The android version is 4.0.4 and the baseband is I535VRLG1. Does it matter what the kernel, build number and hardware version are? I’m not sure what they should be.
I just want to be prepared when I walk into the Verizon store (which is unfortunately over an hour away), so I’m hoping I can get some opinions and maybe save myself multiple trips. I’m not sure if Verizon will work with me or not, but I figured you guys are the experts and can help me out. Thank you!
It looks like the guy who sold you the phone did in fact fully return you to stock. But it is fully stock based on the oldest stock firmware (I535VRLG1). My advice to you would be to activate the phone, and grab the OTA updates all the way up until the current version (I535VRBLK3).
I used to have all kinds of WiFi connectivity issues with this phone, until I replaced my router. Now it works perfectly. There was no real explanation as to why that was, but this phone does seem to have WiFi connectivity issues, especially with older Routers.
Try updating your software first, and see if the problem resolves with the new firmware. I believe Verizon does base the warranty off of the phone activation date, at least they did years ago in the past, but that may have changed.
Thank you, I appreciate the reply. I read that there was an OTA update issued around October to fix some of the wifi issues, but I wasn't sure if I had it. Once I activate the phone with the sim, do you think there will be any issues receiving the updates? I know nothing about rooting and have been trying to read more about it, but I'm concerned I'll end up causing more problems with the phone before I even get to use it.
The router I have is a free one Verizon gives to use with their dsl service - a Westell Model 327w. It is pretty old, although I think the firmware is up to date. The phone works fine when it is closer to the router and everywhere else in my house, except my room which is upstairs and at the other end of the house. I just figured since my other devices work fine, the S3 should too.
Thanks again.
If you are fully stock, with the stock recovery (which it sounds like you probably are), you should have no problem downloading and installing the OTAs. I believe you will have to take a few them before you get up to the current version.
I can confirm that the stock Verizon GSIII has a few upgrades before you get to 4.1.1 (the latest version)
Thanks guys.
I just remembered that I have a newer router that Verizon sent me, but I never bothered with it because the current one was working. I'll try and set that up and see if the signal improves.
I am hoping to get to the Verizon store soon, but unfortunately things keep happening that prevent me from making the trip. Can't wait to get this phone working though. Just the little bit I've played with it makes it difficult for me to go back to my iPhone.
This is how a noob post should read. Nice job, OP -- very informative and you did some homework.
Other noobs take notice -- this is how you do it. Notice how much help he got?
Sent from my SCH-I535 using Tapatalk 2
If its any consolation, I had wi-fi issues even with a newer Verizon router all the way up to the latest version of the the modem and rpm file (vblk3). With the last and latest (vblk3) update, those problems disappeared. So as stated, I would update the software to the latest and hopefully you should be good. Just to add, my wife had the same problems (same phone) as well so this validates for me that it was a software issue.

[Q] LRX13O T-Mobile Cellular connection issue

I'm with the new Lollipop LRX13O roms.
Somehow, It's getting trouble in connecting T-mobile network. Wi-fi definitely works fine. But, it's struggling to find 2G/3G/LTE and just no bar, or sometime bars with no calls or data.
I already tried resetting APNs, and set the cellular network, but no luck here.
If anyone experiences the same problem, please let me know.
Thanks.
hrm I was afraid that this sort of thing could happen. Ah good old early adoption bugs and whatnot Seems to be a reoccurring theme of late with Android updates and cellular providers. Particularly T-mobile. I know it may seem like a dumb question but have you tried it in different areas ie different towers? how about reboot?
I'm on T-Mobile and I'm doing okay. You could try flashing a different radio and see if it works.
Should add I'll be updating mine as well. Currently on T-Mobile $30 plan. Just have to figure the best method forward yet. Most importantly is getting a good backup image(currently stock with locked bootloader).
crucialcolin said:
hrm I was afraid that this sort of thing could happen. Ah good old early adoption bugs and whatnot Seems to be a reoccurring theme of late with Android updates and cellular providers. Particularly T-mobile. I know it may seem like a dumb question but have you tried it in different areas ie different towers? how about reboot?
Click to expand...
Click to collapse
Hopefully, this is just a problem only for me. I rebooted multiple times, and actually tried another Stock 5.0 rom, but having the same issue.
For last a couple of days, I didn't have a chance to go out from home, so didn't check from other areas, but tried different places near home though. And weirdly, my wife's Galaxy Note 3 has no problem at all in both call and data.
TheLastSidekick said:
I'm on T-Mobile and I'm doing okay. You could try flashing a different radio and see if it works.
Click to expand...
Click to collapse
I re-flashed the LPX13D the Preview Radio, I believe that is the most recent radio. But still no luck. I'm kinda hesitating to flash the KK radio, maybe I should try it anyways.
iexplus said:
Hopefully, this is just a problem only for me. I rebooted multiple times, and actually tried another Stock 5.0 rom, but having the same issue.
For last a couple of days, I didn't have a chance to go out from home, so didn't check from other areas, but tried different places near home though. And weirdly, my wife's Galaxy Note 3 has no problem at all in both call and data.
Click to expand...
Click to collapse
Yeah I know how that goes. Its kind of amazing that these devices work as well as they do. There's so many things that can cause glitches. Best of luck to you!
Anyways about to take the same plunge myself and upgrade. Most likely going the factory fresh route since its a major revision. A chance to unlock my boot loader anyways. I'm sure however something will break, be incompatible, etc. Right now I'm most nervous about the hotspot functionality with T-mobile still working. On the $30 prepaid plan and with KitKat I had to disable IPv6 otherwise I always got the upsell page before I could use it. Even though I don't tether often its nice to have.
flashed a factory stock 5.0 zip yesterday. Came from Slimroms 8. Flash rom,new radio,elemental kernel and super su zip in that order. No problems with anything here. No connectivity issues, no /sdcard issues, no battery drain issues, nothing.

Problems with cellular reception since updating to Marshmellow on my S6 Duos

Hey everyone,
I've never really been into the whole flashing deal and I'm also pretty new to the xda-forums so pls don't hurt! :angel:
Anyway, so live in Germany and imported myself an S6 Dual Sim Version via Amazon, so that I could have Internet both there and at home in Ausria at all times. It had a Russian Baseband and CSC but it worked and filthy casual that I am I really didn't mind until now. It's a really weird issue, so sorry that the post turned out pretty long. I haven't found any similar common 6.0.1 Bugs, however I'm not even completely sure if it really is a problem of the updated OS anymore...
So here's the deal.
In Germany I got the prompt to update to Marshmellow 6.0.1 via OTA. Having heard mostly good things about it I downloaded it without really bothering too much about informing myself about any known issues with 6.0.x . After downloading it in Germany my Signal and Mobile Internet worked fine, however I did experience some battery drain in the following days and decided to initialise my phone via Samsung Smart Switch, as I had done with 5.1.1 when I first got the phone because it's cpu never went into sleep mode. Worked out fine then.
Well ever since I did the same thing with my S6 with 6.0.1 the whole dilemma started. Regularly, my phone will show 4G Signal Reception and even full bars, but I am not able to load a webpage or even be called by phone. Wifi works fine, when I have these outages. When I activate flymode and deactivate it again, my reception works again for a couple of minutes, however, the issue will return after 5-10 minutes. Usually even faster when I'm in a moving car or train.
When I switch SIM Cards I can be called on both, but I can't seem to connect to my mobile internet on the Austrian card (can't check on the mobile connection from the german card as roaming is locked by the provider). I went to my austrian network provider and had my sim card replaced, no change. I flashed DBT G920FXXU3DPCA Android 6.0.1 via Samsung Updates hoping that the right baseband would fix it - Nope.
Any of you guys have any other ideas? My last resort is flashing back to 5.1.1 stock. Trying to replace it through Amazon will probably be hard, because the KNOX Counter is tripped. It already was before I flashed 6.0.1, but that doesn't really matter to Amazon I guess. Also the bug is way to specific to replicate anyway, so I'd probably receive the same device back and I don't really know how I could prove via screenshot, etc...
If there's anything I can upload that would help, pls tell. Hoping somebody here might have an idea!
Having similar problems but also with wifi. Any advise appreciated
Skickat från min SM-G920F via Tapatalk
I have the same problem with cellular reception with my S6 duos G920F. My problem is only with sim slot 2 though. It seems to show full bars but when people call me they are getting me as unreachable.

Verizon Signal Issues - Help

I need some help here, weird Verizon signal issue. So I got my U11 on Thursday the 22nd of June. I tested out the stock rom, all working fine, signal working fine too. Then I unlocked the bootloader, put twrp on in system RO mode, put magisk on, then put viperU 1.0.0 on. Viper/magisk and everything was working perfectly, I still had signal, could make and receive calls, send and get texts, wifi was all good, everything was good until Friday afternoon. I think it had to do with me trying to install the ota 1.1.0 viperU, but my signal dropped, still had 4g but that was touch n go. I tried to reinstall the ota because as far as my settings said and knew, I was still on 1.0.0 and when it checked for updates it found 1.1.0 again. After that 4g would work for a moment at boot then die, and there was no signal for calls/texts, that has the signal bars full with a slash through them. I tried fresh installing viperU 1.0.0, no change. I tried every combo in the test/advanced settings, changing the preferred network mode and ims settings, turn the radio off and back on and it would see verizon and try to connect, sometimes seemingly getting signal and changing the signal bars and getting 4g, then losing both. The status msgs on the advanced settings page would go back and forth as far as registered on the network, so I went to verizon and tried to get a new sim, the new sim didn't change anything, BUT a weird thing that happened is when the vzw rep went to the back to get me a new sim and activate it my U11 got signal, both 4g and call/text and I even got a msg, then it died again a moment later. So next I tried completely restoring and relocked my bootloader and installed the 1.11.617.4 RUU for my OCNWHL using htc_fastboot which it did perfectly fine, but still no signal. The bootloader says relocked(L) and software status: modified. Shouldn't it say official again since I flashed the RUU? I have tried reseating the sim and rebooting multiple times too. Oh and one more thing I noticed, my WiFi is touch and go now too, it'll say connected but websites fail to load, apps fail to download, etc until I turn off and back on my phone WiFi. Any ideas guys/gals on how to get my phone connected again? I just want to be able to use my new U11! Thanks in advanced!
kjcsg said:
I need some help here, weird Verizon signal issue. So I got my U11 on Thursday the 22nd of June. I tested out the stock rom, all working fine, signal working fine too. Then I unlocked the bootloader, put twrp on in system RO mode, put magisk on, then put viperU 1.0.0 on. Viper/magisk and everything was working perfectly, I still had signal, could make and receive calls, send and get texts, wifi was all good, everything was good until Friday afternoon. I think it had to do with me trying to install the ota 1.1.0 viperU, but my signal dropped, still had 4g but that was touch n go. I tried to reinstall the ota because as far as my settings said and knew, I was still on 1.0.0 and when it checked for updates it found 1.1.0 again. After that 4g would work for a moment at boot then die, and there was no signal for calls/texts, that has the signal bars full with a slash through them. I tried fresh installing viperU 1.0.0, no change. I tried every combo in the test/advanced settings, changing the preferred network mode and ims settings, turn the radio off and back on and it would see verizon and try to connect, sometimes seemingly getting signal and changing the signal bars and getting 4g, then losing both. The status msgs on the advanced settings page would go back and forth as far as registered on the network, so I went to verizon and tried to get a new sim, the new sim didn't change anything, BUT a weird thing that happened is when the vzw rep went to the back to get me a new sim and activate it my U11 got signal, both 4g and call/text and I even got a msg, then it died again a moment later. So next I tried completely restoring and relocked my bootloader and installed the 1.11.617.4 RUU for my OCNWHL using htc_fastboot which it did perfectly fine, but still no signal. The bootloader says relocked(L) and software status: modified. Shouldn't it say official again since I flashed the RUU? I have tried reseating the sim and rebooting multiple times too. Oh and one more thing I noticed, my WiFi is touch and go now too, it'll say connected but websites fail to load, apps fail to download, etc until I turn off and back on my phone WiFi. Any ideas guys/gals on how to get my phone connected again? I just want to be able to use my new U11! Thanks in advanced!
Click to expand...
Click to collapse
All I can say is a lot of people are having problems with Verizon, me being one of them. I've had the phone almost 2 weeks and still can't get it working. I've talked to HTC and Verizon so many times and they say it's being worked on.
same here. Spent a couple days with near constant contact with Verizon trying to figure out out. Got in touch with HTC and it seems it may be a firmware issue. I can verify with no doubt that it's not the sim though. I've put mine back in my old phone, it worked. I put my daughters in my new phone, it failed to work. I even got a new sim for mine, but no luck. Multiple ROMs, multiple RUUs, and multiple factory resets, and wipes. All we can do is waiter, and pester the hell out of HTC to get them to hurry up.
ieatabiscuit said:
same here. Spent a couple days with near constant contact with Verizon trying to figure out out. Got in touch with HTC and it seems it may be a firmware issue. I can verify with no doubt that it's not the sim though. I've put mine back in my old phone, it worked. I put my daughters in my new phone, it failed to work. I even got a new sim for mine, but no luck. Multiple ROMs, multiple RUUs, and multiple factory resets, and wipes. All we can do is waiter, and pester the hell out of HTC to get them to hurry up.
Click to expand...
Click to collapse
It's so stupid that they don't even do testing before putting it on the market.
If either Verizon or HTC would come up with a simple software update to enable CDMA and all LTE bands, that would solve everything. The problem seems to be that Neither is putting much priority on it.
BTW: Since the U11 works with Sprint, it has the CDMA and LTE bands built in. They're just not set up to fully work with Verizon yet.
Exact same problem.
My unit is going back for refund tomorrow. 4 hours of work trying to get it going and I'm done. HTC blames VZW, VZW says it's hardware. $650.00 paperweight. No thank you.
I'll reorder if this get straightened out. There are hundreds working just fine on VZW.
Seems to be just a few of these that wont stay connected.
---------- Post added at 07:58 AM ---------- Previous post was at 07:58 AM ----------
Exact same problem.
My unit is going back for refund tomorrow. 4 hours of work trying to get it going and I'm done. HTC blames VZW, VZW says it's hardware. $650.00 paperweight. No thank you.
I'll reorder if this get straightened out. There are hundreds working just fine on VZW.
Seems to be just a few of these that wont stay connected.
ieatabiscuit said:
same here. Spent a couple days with near constant contact with Verizon trying to figure out out. Got in touch with HTC and it seems it may be a firmware issue. I can verify with no doubt that it's not the sim though. I've put mine back in my old phone, it worked. I put my daughters in my new phone, it failed to work. I even got a new sim for mine, but no luck. Multiple ROMs, multiple RUUs, and multiple factory resets, and wipes. All we can do is waiter, and pester the hell out of HTC to get them to hurry up.
Click to expand...
Click to collapse
I was starting to lean towards firmware today because of the wifi going in and out. Seems like to get an app to download from play I have to search it, start the download, turn off wifi, turn it back on and then it'll download, yet updates download just fine. Fandango app won't load movies or anything. Etc. So I'm wondering if it's the system or radio...
stock U11 no issues on VZW
I took my sim out of my VZW line to test it out on my U11. I did some speed tests before I took it out. I inserted the VZW sim into the U11 and it booted up with no issues. Received LTE and ran speed tests and they were similar to the other device. There was VoLTE available and it was stable but I didn't make any calls with it. So just sharing my experience with my stock, Unlocked U11. I put the Tmo sim back in but it's good to know it'll work. It seems like some are having issues from the get go and some are having issues after modifying?
kjcsg said:
I was starting to lean towards firmware today because of the wifi going in and out. Seems like to get an app to download from play I have to search it, start the download, turn off wifi, turn it back on and then it'll download, yet updates download just fine. Fandango app won't load movies or anything. Etc. So I'm wondering if it's the system or radio...
Click to expand...
Click to collapse
That's what's so screwy about it. On mine, I get WiFi flawlessly, and I even get mobile data, in 4g even. I just can't talk, or text. Before that, I could text, but no data, and couldn't talk. It's got to do with the way it's using the radios being screwy. The hardware functions, I've had full connection before, it lasted about 2 hours, and sounded amazing even.
---------- Post added at 02:34 PM ---------- Previous post was at 02:29 PM ----------
pumah350 said:
I took my sim out of my VZW line to test it out on my U11. I did some speed tests before I took it out. I inserted the VZW sim into the U11 and it booted up with no issues. Received LTE and ran speed tests and they were similar to the other device. There was VoLTE available and it was stable but I didn't make any calls with it. So just sharing my experience with my stock, Unlocked U11. I put the Tmo sim back in but it's good to know it'll work. It seems like some are having issues from the get go and some are having issues after modifying?
Click to expand...
Click to collapse
Short answer: Yes. I noticed mine stopped after installing a ROM on it, but it was not the first one (test driving to see which I liked on it best). Others have the issue even with it locked still. I think the ROM flashing was more a circumstance than the cause in cases like mine. I even RUU'd back to stock, did factory resets, and tried other SIMs. It also seems to be only Verizon, unless someone on another network wants to set me straight.
ieatabiscuit said:
That's what's so screwy about it. On mine, I get WiFi flawlessly, and I even get mobile data, in 4g even. I just can't talk, or text. Before that, I could text, but no data, and couldn't talk. It's got to do with the way it's using the radios being screwy. The hardware functions, I've had full connection before, it lasted about 2 hours, and sounded amazing even.
---------- Post added at 02:34 PM ---------- Previous post was at 02:29 PM ----------
Short answer: Yes. I noticed mine stopped after installing a ROM on it, but it was not the first one (test driving to see which I liked on it best). Others have the issue even with it locked still. I think the ROM flashing was more a circumstance than the cause in cases like mine. I even RUU'd back to stock, did factory resets, and tried other SIMs. It also seems to be only Verizon, unless someone on another network wants to set me straight.
Click to expand...
Click to collapse
I remember an issue on Verizon and the M9 that after flashing a custom rom, you stood the chance of loosing VoLTE. It did not happen to everyone and did not happen all of the time. I flashed custom rom for months and then one day, boom, VoLTE gone. The only way to get it back was to get the phone replaced. RUU did not work to get it back. Sounds similar to what is going on now. So my question is has this problem affected anyone that has not unlocked the bootloader yet?
I just checked the M9 Verizon section and looks like they did find a fix without replacing the phone. But I think you need to be s-off. Interested if this could resolve any of these issues here.
https://forum.xda-developers.com/verizon-one-m9/general/volte-advanced-calling-fix-t3393007
jsaxon2 said:
I remember an issue on Verizon and the M9 that after flashing a custom rom, you stood the chance of loosing VoLTE. It did not happen to everyone and did not happen all of the time. I flashed custom rom for months and then one day, boom, VoLTE gone. The only way to get it back was to get the phone replaced. RUU did not work to get it back. Sounds similar to what is going on now. So my question is has this problem affected anyone that has not unlocked the bootloader yet?
I just checked the M9 Verizon section and looks like they did find a fix without replacing the phone. But I think you need to be s-off. Interested if this could resolve any of these issues here.
https://forum.xda-developers.com/verizon-one-m9/general/volte-advanced-calling-fix-t3393007
Click to expand...
Click to collapse
I will be trying this later today. Good ol' @dottat
If we get s-off we can probably safely flash roms without magisk n still have volte n even a more stable radio/system firmware, if dev's make it happen of course. Or am I wrong, I don't mind having magisk, I just want to be able to root n customize my phone with it still working as a phone n not a fancy calculator or wifi only device haha. I'm debating getting a replacement from HTC until the firmware stabilizes at least, then I'll mod some more. Cause mine was working perfectly fine until I tried to put viperu 1.1.0 Ota on it.
I just noticed that when I drag down and get the quick settings into view there's a note in the top left that says "the sim card is missing or not readable. Insert a sim card" and that doesn't go away even when the occasional notification that says "sim card inserted click here to finish setup" pops up.
Was fine for a couple days - now suddenly today only getting "roaming" service. Manually trying to connect to VZW fails and says my SIM isn't allowed access.
blastagator said:
Was fine for a couple days - now suddenly today only getting "roaming" service. Manually trying to connect to VZW fails and says my SIM isn't allowed access.
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Same here when I tried that.
kjcsg said:
Same here when I tried that.
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Starting when? or intermittent?
blastagator said:
Starting when? or intermittent?
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The full story is in the op of this thread, but it started about a day after I got the phone, started with only voice/text going out, then lte dropped too so now my phone is wifi only. R u on stock or have u unlocked ur bootloader?
kjcsg said:
The full story is in the op of this thread, but it started about a day after I got the phone, started with only voice/text going out, then lte dropped too so now my phone is wifi only. R u on stock or have u unlocked ur bootloader?
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Ah sorry, didnt notice you were OP. I have unlocked but was running stock OS with Magisk (no other mods, I just wanted root). Noticed that turning of VoLTE in phone settings killed connection, so I was able to toggle that off and on (+airplane mode in between) to usually resurrect connection. Now nothing is working. Going to do a full wipe now to see if it comes back.
blastagator said:
Ah sorry, didnt notice you were OP. I have unlocked but was running stock OS with Magisk (no other mods, I just wanted root). Noticed that turning of VoLTE in phone settings killed connection, so I was able to toggle that off and on (+airplane mode in between) to usually resurrect connection. Now nothing is working. Going to do a full wipe now to see if it comes back.
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No worries haha. My signal today is intermittent, I'll get bars but can't call because when I try 4g turns off. In the HTC test settings, when I have bars it sees Verizon network but not my phone number, where as when I don't have bars (bars with slash through them) it sees my number but not Verizon network. For u to see this menu type *#*#4636#*#* in the dialer. My VoLTE is activated in settings tho.
Factory wipe didn't help either. Doing RUU now. This is so ridiculous. Also I accidentally deleted my backup, oops. Le sigh. This thing will probably be going back. Sad. I was loving the phone.
---------- Post added at 06:44 PM ---------- Previous post was at 06:38 PM ----------
kjcsg said:
For u to see this menu type *#*#4636#*#* in the dialer.
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Bruh - go in menu -> Phone Info -> Turn Off Radio
Select "LTE Only" Select "WCDMA/LTE"
Turn radio back on.
Fixed problem instantly!!! Thank you SO SO MUCH!
edit: MMS doesn't work, but SMS seems possibly ok? not sure.
edit 2: WCDMA/LTE is the magical answer. All seems working now.

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