yashsingh1/xdaforums huggingface dataset:
[HTC U11  Questions & Answers] QD2DC:
No but it's happened to enough people including yourself if I recall. And that's just the people who actually frequent this forum. Who knows how many more that we don't hear about here. Then again htc doesn't have that large a market share like it it used to or it really may be just us prolonging their eventual closure.
[HTC U11  Questions & Answers] LibertyMonger:
My only issue was the complete loss of signal after flashing something, line through the signal bars. That has happened three times but since I have learned to be careful and pop my sim it hasn't happened. As long as it boots with signal I have no other issues and it performs much better than my Verizon HTC 10.
[HTC U11  Questions & Answers] QD2DC:
Yes that's what I'm referring to, complete signal loss. It happened to me once after a flash and the other 3 times just after a plain jane reboot. That's the issue that's afflicted verizon users seemingly at random. And while we've found possible solutions to get by this, it still isn't something we should HAVE to do, nor something I've ever had to worry about in my 8 years of developing, which again I believe happens because of lack of cdma and bands 2 and 4, since that's the only thing different about this latest device on Verizon, and I think a first. It's obviously a problem that neither HTC or Verizon want to admit/accept and that's the problem.
[HTC U11  Questions & Answers] LibertyMonger:
It hasn't been random for me. Always after flashing or installing to system.
[HTC U11  Questions & Answers] QD2DC:
The fact that it still happens whether because you flashed something, or after reboot as others have reported, including myself, is a problem. This isn't normal behavior and shouldn't be treated as such, and makes an otherwise perfect device not so perfect for me, especially if you love flashing and playing with new stuff as you'll be more likely to run into this issue but even on stock I saw someone report the same at least once, so even that's not a guarantee sadly.
[HTC U11  Questions & Answers] LibertyMonger:
We already know this and this is why I have been emailing and in contact with a top executive.

---------- Post added at 08:04 PM ---------- Previous post was at 07:49 PM ----------

Based on my experience it is still a great phone on Verizon and no one should be left thinking it is absolutely not worth trying. If anyone has the same experience I am having they will be happy with it. In the mean time it is still an issue that needs addressed. I'm on my second thirty day trial and have not found any reason worth returning it.
[HTC U11  Questions & Answers] QD2DC:
I'd like to say I'm hopeful that you'll get somewhere but I've been in contact with both HTC devs/friends i've made since being part of their testing program, and Verizon network specialist that I have access to thanks to my large business account, and I can tell you Verizon sees it as a none issue, since it isn't their device and only about .2% on are verizon lol, although they did help me with caller ID issues I was having here related to my work phone system lol, and HTCs hands are tied by verizon. In fact they were told to disable bands 2 and 4 to be complaint with their network. If you have root you can enable these yourself but I did notice a hit to the battery life, which makes sense since it's jumping bands.

And I agree it is a great phone, easily one of the best out there right now, minus the issues.
[HTC U11  Questions & Answers] PieceKeepr:
Now that I have a new sim card and my mms is working correctly, I have been talking to Verizon to verify the HD Voice is active on my line and it is. The Verizon guy told me that in the phone settings there should be a switch to turn "Advanced Calling" on and off. I don't see that so I called HTC and they said it's the same as VoLTE and if it is active on the account then it is active on the phone and there is no "switch" in the settings for it. What do you folks see? Is there a setting I'm missing or is HTC right?
[HTC U11  Questions & Answers] QD2DC:
Are you running stock? The option is there on the stock dialer settings but it's missing from the dialer settings in Viper for sure, most likely because of there base. But yes HD Voice, or Advanced Calling, IS VoLTE. I had it on prior to flashing anything, so I can't say for sure if that setting follows your account or not.
[HTC U11  Questions & Answers] tml478:
For me, the loss of service has mostly come from flashing something or rebooting after a root request. I found the popping the SIM card out before flashing something has helped only when it automatically boots itself into TWRP (I.e. Venom Hub) and auto flashes. Popped the SIM card out to manually Flash something, put the SIM card back in and had no service after the reboot. Viper seems to be more stable for me than any other rom, as both Bad boys and Leedroid have lost service after a simple reboot. I really enjoy this phone and have returned the 4gb model for the 6gb model. I have until 9/12 to return it all together. I'm stuck because I have a fear in the back of my head every time I Flash or reboot. I got this phone because it's been a minute since I've had a phone that is rootable on Verizon. I loved the 6p so I'm waiting until more reviews come in for the Essential Phone. I want to love it, but as a "crack flasher" it's hard to live in fear of having to start over and re-setup a phone over and over again.
[HTC U11  Questions & Answers] LibertyMonger:
I'm hoping we get S-off and maybe flashing the radio file will fix it to avoid having to start all over from an ruu

---------- Post added at 03:03 AM ---------- Previous post was at 02:58 AM ----------

I would boot after flashing before putting the sim back in. Then power down to put the sim in and power back on. I haven't lost signal yet since doing this. It's most probably luck but I'm gonna continue to believe it works until it doesn't.
[HTC U11  Questions & Answers] LibertyMonger:
Ain't too bad.
[HTC U11  Questions & Answers] QD2DC:
I wish I got those speeds here lol. But if I'm not at home or at work I don't really rely on speed so the trade off of better signal at the cost of speed isn't too bad of a compromise. Having better signal in areas I barely got any is nice though.
[HTC U11  Questions & Answers] LibertyMonger:
Temporary S-Off has been released by the Firewater Dev's, get Sunshine here

My hopes is if we do get the lost signal issue, we can run Sunshine to get S-Off, it will boot you into download mode and maybe we can flash the radio then reboot to see if it fixes it without having to run an ruu to start all over. I will be posting the radio file here soon. If anyone has any other ideas please share.
[HTC U11  Questions & Answers] LibertyMonger:
I forgot how to extract the radio file, if anyone has it or knows how to get it please post it.
[HTC U11  Questions & Answers] PieceKeepr:
No, I'm running Viper. Do you remember what it's called in the stock settings? If so mention it on the Viper thread and hopefully they can add it to the rom. May or may not help the signal loss issue but it can't hurt.
[HTC U11  Questions & Answers] QD2DC:
I can't remember what it's called lol but it won't help with this specific issue as I lost signal when I still had this option in the dialer settings. Furthermore, If it wasn't enabled you wouldn't have service as HD voice, or advanced calling, requires this option to be enable to make calls. When I first got the phone I had to turn it on to get service. If I went in after and unchecked it I would lose service. Completely stock at this point. But when I flashed LeeDroid this option was no longer there but i still had service. So this means that VoLTE is enable by default regardless of the option being there. Same with ViperU.

Just another fun fact, on the s8+ it's called advanced calling in the system settings, not in the dialer settings like on the U11. However when I flashed my s8+ to the unlocked firmware there is no advanced calling settings, since this is strictly a Verizon setting. However I still had a service since I had HD voice enabled on my account already so the phone just recognized that and it worked with no changes required. The U11 does the same, regardless of the setting being there, if the line on the account has it active, the phone sees it upon provisioning and just works.

Like I've said, I'm pretty sure the restriction on bands is what is causing the loss service. I think of it like this, when you power on the phone for the first time, fresh, all bands are enabled, it sees your sim, registers with verizon then the software is told to disable the extra bands. At some point this registration is lost and can't re-register over band 13. So no service. This would explain why if you RUU you get it back, cause you erase everything, and start fresh prior to the bands being disabled. This would also explain why if I put my wife's t-mobile sim in, then put my verizon sim back in I get signal back. Her sim activates all bands since t-mobile don't care, then when I put my verizon sim back in, it registers via one of those bands like normal, then they are turned off again by the software being told to cause its verizon. Just my two cents.
[HTC U11  Questions & Answers] LibertyMonger:
It's called advanced calling and it is loaded in main settings under wireless and networks. It is there on stock ROM but not on Viper. It is automatically checked as active on the stock ROM.
[HTC U11  Questions & Answers] LibertyMonger:
This is from my HTC 10 but it's the same on stock U11
[HTC U11  Questions & Answers] LibertyMonger:
This was something we did to fix radio or activate VoLTE with the Verizon HTC 10 and M9 i think, I wonder if this would work?

fastboot erase modemst1

fastboot erase modemst2
[HTC U11  Questions & Answers] sdamark:
Those commands don't work on the U11, I tried when I was having issues.
[HTC U11  Questions & Answers] LibertyMonger:
Seems like someone could help us with commands that do work. Hopefully someone can upload the radio file, I forget how to extract it.
[HTC U11  Questions & Answers] sdamark:
It might have been just because of S-On. May not have access to that partition. I just know the command did nothing.
[HTC U11  Questions & Answers] LibertyMonger:
Yeah the next one of us who lose signal need to S-Off and try it.
[HTC U11  Questions & Answers] PieceKeepr:
I guess you can add me to the signal loss weirdness. I turned the phone on this morning and had no signal, though it was working fine when I turned it off. Fortunately a reboot fixed it and I had a signal but I admit to panicking for a minute or two.
[HTC U11  Questions & Answers] LibertyMonger:
There is a direct number we can call to complain about this issue in the email from Jesus at Verizon Wireless Executive Relations, Ronan Dunne, EVP & Group President VZW.

My name is Jesus, and I work in the Executive Office of Verizon Wireless. I received your complaint from Ronan Dunne, EVP & Group President VZW.

I would first like to apologize for any inconvenience that you may have experienced with our company. I understand from reviewing your email that you are expressing concerns after you purchased an HTC U11, which did not work in our network. I truly appreciate the opportunity to address your concerns, as it helps us become better at what we do.

Upon review, the HTC U11 is part of our Bring Your Own Device service. This device has approved hardware and software allowed to be used on the Verizon Wireless network. This is specifically to ensure voice and data work properly.

I’m sorry to hear the device was not fully compatible with or Network.

What issues did you experience with this device? Do you still have the device?

Should you have any additional questions or concerns, please do not hesitate to contact me directly at 800-779-2067 Extension 2220080, Monday through Friday between the hours of 8:30 AM - 5:30 PM PST, or by replying to this email.

Regards,

Jesus

Analyst – HQ Executive Relations

---------- Post added at 09:36 PM ---------- Previous post was at 08:53 PM ----------

It would be a nice gesture for fellow XDA members if people could call and leave a complaint even if you don't own the device. The more the merrier. Lol.
[HTC U11  Questions & Answers] LibertyMonger:
Everything has been running flawlessly on ViperU 1.7 but I forgot one thing, I forgot to allow Magisk root for the edge sense plus app. It requires a reboot so I'm gonna pop my SIM out and try to activate it. :fingers-crossed:
[HTC U11  Questions & Answers] LibertyMonger:
And booted up just fine. Love this phone.
[HTC U11  Questions & Answers] LibertyMonger:
It would be nice if someone could provide us with a flashable radio, if it's possible. To see if when we do experience a signal loss maybe we can reboot to recovery and flash the radio to see if it fixes it? Surely there is a cause and solution but we haven't had any kind of help. If not I will figure it out hopefully. My momma's been in the hospital so i spend all my spare time there after work. It would be much appreciated.
[HTC U11  Questions & Answers] PhantomZwei:
Sometimes this happens to me where I lose service at work walking through the basement, but I can usually just turn on airplane mode for a few seconds and turn it off. It usually connects back after that.
[HTC U11  Questions & Answers] PieceKeepr:
If it happens again, and it hopefully won't, I'll give that a try.
[HTC U11  Questions & Answers] michaelbsheldon:
I've been doing work driving for 2 weeks with an HTC10 and the U11 with me.

U11 is stuck on Band 13, while the HTC10 rotates bands as often as every few blocks.

Using 'Network Cell Info' from the Play Store, I can see it constantly rotating between Bands

2 - 4 - 13.

Also, it's those additional bands that allow "Carrier Aggregation" which improves speed

and signal. Honestly, I don't understand why Verizon and HTC have not got this issue put to bed.

A simple radio flash that enables 2 more bands will make our U11's more reliable and turn it into

the PERFECT phone.
[HTC U11  Questions & Answers] LibertyMonger:
It may not be the fastest but I have not encountered any reliability issues. It's most definitely unacceptable but I haven't seen many people really pushing this issue, we need to harass the people at the top, as many of us who can. I may even contact my states attorney general and our local trouble shooter Howard Ain lol. There doesn't seem much interest in this matter.
[HTC U11  Questions & Answers] LibertyMonger:
We need to demand an explanation as to why we are getting treated like this.
[HTC U11  Questions & Answers] WA_Bob:
S-Off is finally available. Maybe we can finally get the radio from the 10 or another SD 835 phone with all the Verizon bands?
[HTC U11  Questions & Answers] CollinFX45:
I read the last 7 pages or so and can I make sure I'm understanding correctly? It seems the unlocked U11 on Verizon has signal reliability issues where certain bands become disabled and the device loses service? I found this thread when I was trying to see if I could survive without the CDMA radio, but I definitely can't survive only on band 13 or something. I also noticed no WiFi calling, so we are strictly relegated to VoLTE with this device? Argh. I really want to order the U11 128/6gb version. I'm giving up on my Essential pre-order and U11 is next on my list! :)

-Collin-
[HTC U11  Questions & Answers] secone00:
With the US Unlocked version yes, you will only be able to use band 13 for Verizon and you can only call or text with VoLTE.
[HTC U11  Questions & Answers] CollinFX45:
Appreciate the reply - ouch. Oddly enough I only get band 4 at my work. No Verizon phone I've had will pick up band 13 here even when I lose band 4 coverage and it switches to 3g. I guess I have to pass on this phone :(

-Collin-
[HTC U11  Questions & Answers] ckupsco:
Seems to be working using message+ app only.
[HTC U11  Questions & Answers] Perry977:
Thats weird...how long have you been with verizon? Have you tried different sim?
[HTC U11  Questions & Answers] ckupsco:
12 years with Verizon. I used the sim from my HTC 10 and it was working fine until yesterday afternoon when the others reported the same thing.
[HTC U11  Questions & Answers] Perry977:
Idk you could probably try a new sim? Maybe its all acting up because the old sim was registered for htc 10
[HTC U11  Questions & Answers] ckupsco:
I talked to Verizon support and they said everything was provisioned correctly and it looks fine on my account it's registered as an HTC u 11
[HTC U11  Questions & Answers] Mootarjim:
Why would you hate Wi-Fi calling? Not use it much, I understand. But hate it? I don't get it.
[HTC U11  Questions & Answers] dodendemise:
They said the same to me but I still wont get a connection to the network. i wonder how long I should wait before returning it.
[HTC U11  Questions & Answers] ckupsco:
I get a signal and have from day one just in the last day I was unable to receive text messages from any other app than the Verizon message app
[HTC U11  Questions & Answers] dodendemise:
When this behavior is occurring can you make and receive calls? While trying swap sims when I would go back to my m8 I wouldn't get texts or calls, but message+ would pull text messages when I had the app open. Probably because it was syncing with the data connection.
[HTC U11  Questions & Answers] ckupsco:
I could make and receive calls the whole time.
[HTC U11  Questions & Answers] synplex:
Nope, tried a few places around Miami but only getting Band 13 :(

Band 4 is all over Miami too. My S8+ was getting was getting 40-55mbps not I'm getting 12-20mbps in the same areas. :eek:

I have a Unlocked model with a Verizon Sim Card from my Pixel XL.
[HTC U11  Questions & Answers] Perry977:
Same here with mee
[HTC U11  Questions & Answers] darthvisor:
This really stinks :mad: I can't believe HTC didn't work with Verizon to address this.
[HTC U11  Questions & Answers] WorldOfJohnboy:
Nothing is now... SIM reader inside the U11 just sh__ the bed and HTC can't replace or fix it for weeks, so I am returning my U11 for a refund, sadly.

---------- Post added at 11:31 PM ---------- Previous post was at 11:20 PM ----------

Well, call it karma for me using that word to describe Wi-Fi calling, but my SIM reader in my U11 just died and HTC said they are weeks out from getting it replaced, so I'm returning mine for a full refund... Back to my HTC 10... :/

Last time I used Wi-Fi calling, my experience was horrible--kept dropping calls trying to switch between VoLTE and Wi-Fi, and such. Maybe it's better now but I've always disabled it out of the box.

I realized with no Wi-Fi calling and no CDMA radio, I am SOL if I lose LTE connection like I did today. I don't want to carry an old backup phone around with me if this happens again. I guess I'll hold out hope that HTC will at least release another flagship HTC for purchase through Verizon so I can feel better about it. This BYOD it's not meant for me. The U11 is the best phone I've ever used, but I need security blankets surrounding me, apparently.
[HTC U11  Questions & Answers] ckupsco:
I getting txt but no MMS. Is anyone seeing the same thing.
[HTC U11  Questions & Answers] michaelbsheldon:
On Verizon. Before inserting sim card, unlocked bootloader.

Connected to Verizon and got a small software download. Took OTA to 1.11.617.3, and can send and receive txts and MMS.

Other than no WiFi calling, really like this phone. Mobile hotspot works too. Calls are strong & clear sounding and don't drop.
[HTC U11  Questions & Answers] ckupsco:
It was working fine for me and then just stopped on Thursday afternoon
[HTC U11  Questions & Answers] Perry977:
How is the internet speed? Is it using band 4 after unlocking bootloader?
[HTC U11  Questions & Answers] oneandroidnut:
Returning mine back to amazon. can't get band 2 or 4 and band 13 is slower then pixel on band 13. can always rebuy if they figure something out
[HTC U11  Questions & Answers] michaelbsheldon:
Internet pages and pics seem to load same speed as the HTC10. No complaints on speed.

Am getting only Band 13.

We will have to wait for S-0ff to use the cool 'DFS Tool' to add Bands 2 and 4, if the U11 will support that.
[HTC U11  Questions & Answers] secone00:
Yeah, I'm (not) sorry to say, but I've switched over to tmobile now, I received one more sim card from Verizon and watched texting/etc work great with it in my friend's phone, but of course, it did nothing in the u11 after numerous reboots and radio menu tinkering. I'll have a little less coverage on the road now but VoWiFi and some other perks definitely make up for that. This phone is just too good to let Verizon mess it up.
[HTC U11  Questions & Answers] LibertyMonger:
Yeah it seems you just didn't fix it right. The ruu.exe fixes it every time. I'm still going strong with no signal loss. Reboots, new SIM cards and radio menu tinkering does nothing. These kinds of posts do not help the thread, there is a fix you just didn't read enough to find it. Correct me if I'm wrong.
[HTC U11  Questions & Answers] sdamark:
These kind of posts do help. In my opinion.

This is exactly the kind of post I want to see.

No amount of RUUs got my signal back. The RUU has fixed it FOR YOU, every time. Congratulations. Everyone's experience is different.

I want everyone who loses signal on Verizon with the U11 to post their experience here. Every time.

I'm very glad you're happy. Hope you never lose signal without being able to get it back. Your return period is ticking away.

But the fact is the more people that post their issues, the more information we can gather.

So, please, let people complain. It may just provide us with a tidbit of information we need to fix this once and for all.

This device should NEVER lose connection with the network. I've never had a previous device do this, why should I accept this from the U11?

Party on, guys. ?
[HTC U11  Questions & Answers] LibertyMonger:
You wasn't using the right ruu

---------- Post added at 03:37 AM ---------- Previous post was at 03:35 AM ----------

The exact post you want to see did nothing to fix the problem

---------- Post added at 03:46 AM ---------- Previous post was at 03:37 AM ----------

This is my second U11 and I don't see these problems. Its not coincidence. The Verizon network is manageable with this device.
[HTC U11  Questions & Answers] QD2DC:
Saying he "didn't fix" something that shouldn't be happening to begin with is pretty ignorant and negates the fact that it shouldn't happen to begin with. We shouldn't have to worry about losing service period, but it still happens. Never have i ever had to completely erase our entire phone simply to get service again, and I still don't since mentioning a quicker and easier solution. But it's completely rediculous to suggest either as something that's totally normal. There is no "fix"...simply a work around to a serious issue. We shouldn't have to jump carriers to gain access to extra bands and features the phone is fully capable of like carrier aggregation and wifi calling but that's the reality here. This device is handicapped for Verizon, plain and simple. [MENTION=4870157]sdamark[/MENTION] is right, I've never owned or developed for a phone where this has happened, nor will I accept this as normal.
[HTC U11  Questions & Answers] LibertyMonger:
Lmao. All I see is people who don't know how to fix it. If you can't fix it send it back. There's not much more than that. As for me I'm not having any issues.
[HTC U11  Questions & Answers] QD2DC:
That's not a fix. A fix emplies something that needn't be done twice. But you suggest RRU every time? Or remove the sim every time? If you think that's a fix, that's the real funny part. And you suggesting that as a fix is the very reason why this'll never be fixed, cause you've become complaint to a real issue by simply working around it.