[Q] Call issues on my m8 - AT&T HTC One (M8)

I bough my m8 unlocked from eBay when they were selling them at $300. Ever since I got it, it has had an issue connecting calls. It either takes too ling to connect the call or altogether drops it. If I connect the call, I will sometimes not hear the other person and vice versa.
I have tried SkyDragon ROM but the issue still persists. Anyone with an idea on this?
Thanks

We need more information...which firmware,s-off/s-on,carrier ?
Sent from my One M8 using XDA Free mobile app

Firmware: SkyDragon 4.4.4
S-On
Unlocked from att
New GSM carrier outside the US

briankariu said:
Firmware: SkyDragon 4.4.4
Click to expand...
Click to collapse
Sense or GPE? There is more than one Skydragon.
Also, "firmware" is a confusing term. What hboot and radio numbers?

Hboot 3.19
Radio [email protected]
OS 3.42.502.1
Skydragon 4.4.4 GPE, but the problem still persists on a stock ROM

briankariu said:
Skydragon 4.4.4 GPE, but the problem still persists on a stock ROM
Click to expand...
Click to collapse
If the problem persists on the stock ROM (as well as GPE), you might have a radio that isn't fully compatible with your local carrier.
Do you know what HSPA (3G) and LTE bands (if applicable) your carrier uses?
Also, you might shut off LTE and see if that helps (not possible on stock AT&T ROM).

Am thinking I just S-Off and flash GPE to see if the problem persists. I am on a GSM carrier, have owned several At&t devices before with no problem at all. Switched off 4G LTE and problem still persists. could the problem be hardware?

briankariu said:
Am thinking I just S-Off and flash GPE to see if the problem persists. I am on a GSM carrier, have owned several At&t devices before with no problem at all. Switched off 4G LTE and problem still persists. could the problem be hardware?
Click to expand...
Click to collapse
Sure, a hardware fault is "possible". But you can't attribute it as "possible" without some more research or troubleshooting.
The fact "several AT&T devices" work on your network is slightly irrelevant. Every device has its own set of specs and band compatibilities. You should verify that your network's bands are supported by this particular device (AT&T version), first of all.
You should also consider if the seller will honor any return or exchange before you s-off the phone (such mods which would almost certainly void any return policy by the seller). But if you are not eligible or interested in returning the device, then yes, trying different ROMs or radios reasonable troubleshooting steps.

Related

[Q] Help Fixing Data Issues

Hello All,
I recently installed a Rom from the international htc one forums and I am encountering the problem where my data is constantly switching between G, 2G, and 4G. I tried installing the t-mobile radio but it still does not fix this issue. Any help to fix this problem would be appreciated, thanks!.
jons227 said:
Hello All,
I recently installed a Rom from the international htc one forums and I am encountering the problem where my data is constantly switching between G, 2G, and 4G. I tried installing the t-mobile radio but it still does not fix this issue. Any help to fix this problem would be appreciated, thanks!.
Click to expand...
Click to collapse
Where did you buy your phone? From HTC directly or at a T-Mo/T-Mo affiliate? When flashing a ROM, make sure it's compatible with the T-Mobile HTC One. I would try flashing one with confirmed support. If you have an M7 directly from HTC, you will NOT be able to receive HSPA+ 42mbs through the 1700 (AWS) band. However, you can still get HSPA+ 21mbs through the 1900 band if you are in a refarmed area.
Jinra321 said:
Where did you buy your phone? From HTC directly or at a T-Mo/T-Mo affiliate? When flashing a ROM, make sure it's compatible with the T-Mobile HTC One. I would try flashing one with confirmed support. If you have an M7 directly from HTC, you will NOT be able to receive HSPA+ 42mbs through the 1700 (AWS) band. However, you can still get HSPA+ 21mbs through the 1900 band if you are in a refarmed area.
Click to expand...
Click to collapse
My Phone is from T mobile. I live in a re-framed area but it seems the radio for the M7 from HTC was put on my phone or that's what I am guessing.
jons227 said:
My Phone is from T mobile. I live in a re-framed area but it seems the radio for the M7 from HTC was put on my phone or that's what I am guessing.
Click to expand...
Click to collapse
Your phone would be able to receive the signal as long as it supports the band. Perhaps you just have spotty coverage? Try flashing another RAM or stock to see if it switches on you.
Jinra321 said:
Your phone would be able to receive the signal as long as it supports the band. Perhaps you just have spotty coverage? Try flashing another RAM or stock to see if it switches on you.
Click to expand...
Click to collapse
I tried flashing a bunch of different roms and stock ones too. None of them worked to fix the problem. My reception isn't the problem as before I installed Android Revolution I had constant 4g everywhere I went with at least 4-5 bars. I also flashed the t mobile radio found on these forums too but that didn't work either.
jons227 said:
I tried flashing a bunch of different roms and stock ones too. None of them worked to fix the problem. My reception isn't the problem as before I installed Android Revolution I had constant 4g everywhere I went with at least 4-5 bars. I also flashed the t mobile radio found on these forums too but that didn't work either.
Click to expand...
Click to collapse
I'm confused, are you saying you tried a bunch of ROMs and none of them worked well besides ARHD?
Jinra321 said:
I'm confused, are you saying you tried a bunch of ROMs and none of them worked well besides ARHD?
Click to expand...
Click to collapse
I flashed other roms to see if it was just ARHD that was affected by the data problem. Anything I flashed after ARHD would have the same problems
jons227 said:
I flashed other roms to see if it was just ARHD that was affected by the data problem. Anything I flashed after ARHD would have the same problems
Click to expand...
Click to collapse
did you get this solved? i am having a similar issue. when i first turn on my phone, i can get 4g/hspa. but it drops after a couple of mins. i dont even get edge. works everytime i reboot the phone or go from airplane mode on to off. i noticed the problem after rooting my tmobile htc one and flashing a ROM.
Is it better just to stick with approved ROM for Tmo? There are not many to go around.
I learn if it is 4g, 3g, wifi, etc it is kernel and just find a Tmo kernel.
Cook ROM and Kernel are different.
I am still learning.

HTC One Tmobile Google Play Edition Radio

Can someone please enlighten me? Is the band compatibility issues on the HTC One GPE a hardware limitation or software limitation?
Reason I ask is that I would like to do a full GPE conversion on my HTC One that I got from T-mobile. If I do this would I still be able to connect to the same towers and have the same signal on HSPA+ specifically? Or would I have to (and be able to) flash a T-mobile radio? Or would I just be screwed?
Sent from my HTC One using Tapatalk 4
I'm not sure, but I have a tmo one running Android Revolution Google Edition ROM and flashed a tmo radio and get great reception mLTE and HSPA +
Tapatalkin'
I have the gpe 4.3 radio on my T-Mobile htc one and I'm getting better lte reception than the T-Mobile radio.
I'm running the arhd 4.2.2 Rom.
slopra said:
Can someone please enlighten me? Is the band compatibility issues on the HTC One GPE a hardware limitation or software limitation?
Reason I ask is that I would like to do a full GPE conversion on my HTC One that I got from T-mobile. If I do this would I still be able to connect to the same towers and have the same signal on HSPA+ specifically? Or would I have to (and be able to) flash a T-mobile radio? Or would I just be screwed?
Sent from my HTC One using Tapatalk 4
Click to expand...
Click to collapse
The Roms you install shouldn't prevent you from connecting to the HSPA network. The HTC One GPE has a physical (radio) limitation that prevents it from connecting to the HSPA because its lacking one of the radios for the frequency TMobile uses for that standard.
If you have a TMobile phone and make it be a GPE via ROM flash, you shouldn't have issues.
Sent from my Nexus 7 using Tapatalk 2
Thanks I wasn't quite sure what the limitation was. I couldn't fully convert to GPE like I wanted since I can't get s-off but I'm running ARHD 4.3 with the GPE radio and yep I'm getting even better signal. Thanks guys
Sent from my HTC One using Tapatalk 4
What about the Dev Edition working with flashed radio
This may be a n00b question, but I have an opportunity on a sweet deal for a Developer Edition One, and am considering T-Mo for the service. I understand it lacks the HPSA+ 1700 radio, but is that a physical limitation, or can you flash the necessary firmware on top? According to T-Mo, my area of Atlanta is serviced by LTE, so it wouldn't be an issue at home, but I don't know what would happen when I step out of the coverage zone.
Any tips or advice?
CaptBananaPants said:
This may be a n00b question, but I have an opportunity on a sweet deal for a Developer Edition One, and am considering T-Mo for the service. I understand it lacks the HPSA+ 1700 radio, but is that a physical limitation, or can you flash the necessary firmware on top? According to T-Mo, my area of Atlanta is serviced by LTE, so it wouldn't be an issue at home, but I don't know what would happen when I step out of the coverage zone.
Any tips or advice?
Click to expand...
Click to collapse
It's a physical issue, it does not have a radio that supports T-Mo's frequencies, as much as I'd like one, I can't give up LTE
z0phi3l said:
It's a physical issue, it does not have a radio that supports T-Mo's frequencies, as much as I'd like one, I can't give up LTE
Click to expand...
Click to collapse
This post has answered one question of mine being whether the hspa issue was a hardware issue or not. Hkwver I have a normal T-Mobile one that I converted to fully stock gpe with stock boot loader and recovery and ever since making the switch in certain areas I lose LTE briefly cinect to hspa and end up on 3g. Before the switch in these same areas I would never lose LTE connection or suffer speed loss. Since the switch though there are a lot of areas that I cannot connect to anything but 3g. So if this is a hardware limitation the GPE RUU shouldn't effect this manner or is there something in the RUU preventing access to this radio seeing as it was written with knowledge of the hardware it was being placed on not having the proper hardware? Is there anything I can do to restore functionality of hspa while keeping Google play edition on my HTC one ?
wakeup6621 said:
This post has answered one question of mine being whether the hspa issue was a hardware issue or not. Hkwver I have a normal T-Mobile one that I converted to fully stock gpe with stock boot loader and recovery and ever since making the switch in certain areas I lose LTE briefly cinect to hspa and end up on 3g. Before the switch in these same areas I would never lose LTE connection or suffer speed loss. Since the switch though there are a lot of areas that I cannot connect to anything but 3g. So if this is a hardware limitation the GPE RUU shouldn't effect this manner or is there something in the RUU preventing access to this radio seeing as it was written with knowledge of the hardware it was being placed on not having the proper hardware? Is there anything I can do to restore functionality of hspa while keeping Google play edition on my HTC one ?
Click to expand...
Click to collapse
I don't have an answer to your question, but I'm trying to figure one thing out - you were able to do a full GPE conversion (including RUU and changing the model ID) to a T-Mobile One and didn't brick it?
850csi said:
I don't have an answer to your question, but I'm trying to figure one thing out - you were able to do a full GPE conversion (including RUU and changing the model ID) to a T-Mobile One and didn't brick it?
Click to expand...
Click to collapse
no it did not brick the device if fully functional receives ota updates and the questions I had in the OP I've answered. The device gets hspa+ 42 as well as LTE so the issue must be a hardware limitation of the gpe that u can actually purchase. In fact it is a at t model which is why it suffers the lack of HEPA connectivity. However if j flash a T-Mobile over to GPE RUU it will have HEPA+ connectivity. Also mid and Cid do not need to be changed in order to get ota updates. The OP has been edited since this was discovered all u need to do is flash the ruu and you'll have a fully official gpe HTC one with ota.

[Q] No incoming calls in LTE mode - M8 AT&T ARHD 34.0

I've got a rooted unlocked s-off AT&T M8. I took the 4.4.4 update, then promptly moved to ARHD 34.0. Didn't realize it at first, but I am no longer able to receive calls while on LTE. (works fine for data, and outgoing calls)
If I force it down to 3g, I'm fine. I also noticed that outgoing calls automatically kick it down to 3g- then learned that LTE calls are not an option yet for AT&T. What I'm trying to figure out is, how was I able to have my stock rom on AT&T in LTE mode and still receive a call?
I've checked all the APN settings and it all is set to recommended parameters on AT&T's website. Is this an Android Revolution HD issue? SIM issue? AT&T issue?
I'm going to have to back out of ARHD if there is no solution here, and that would suck.
thanks.
ARHD 34.0 is Android 5.0 based (software 4.16); not 4.4.4 (software 3.x). You might be experiencing this issue due to firmware mismatch. My advice would be to flash the US Dev Edition RUU or firmware zip to get on the 4.x based firmware, and see if that helps. You can try the Euro 4.16.401 firmware, but my experience the US Dev Edition (4.16.1540) plays better on AT&T (as its designed to work on AT&T's network).
Even with the proper firmware, some folks have also had some random network issues running an "international" based ROM on AT&T's network. Most notably losing Google services while on LTE (possibly due to build.prop differences). So its possible your LTE issue may be related. Not to knock the ROM developers, but devs from Europe and other regions often aren't that familiar with the nuances of AT&T's network.
So if being on the proper firmware still does not resolve the issue, it might be the ROM itself doesn't play well with AT&T in your location.
Thanks Redpoint-
I hadn't considered that and am also shy to using the Dev RUU due to brick risk but will reassess that. (I have to convert my device to GPE to put that on don't I?) I recall some warnings about bricking if I change the ID of my phone and apply the wrong RUU or something- but I'll have to refresh myself on those caveats. Would have been so much simpler if AT&T had just released Lollipop but who knows how long I'd be waiting for that.
Thanks again.
jeremyenos said:
Didn't realize it at first, but I am no longer able to receive calls while on LTE. (works fine for data, and outgoing calls)
If I force it down to 3g, I'm fine. I also noticed that outgoing calls automatically kick it down to 3g- then learned that LTE calls are not an option yet for AT&T. .
Click to expand...
Click to collapse
Voice over LTE (VoLTE) not being available yet should not be the cause. VoLTE is not currently available on most carrier worldwide. Its a very new technology, and deployment is still ongoing in most regions. Only a few Asian countries currently have VoLTE.
That being the case, voice calls should be kicking down to 3G. The lack of VoLTE should not prevent you from receiving calls. As mentioned, I believe the issue is either a firmware mismatch, or ROM not playing well on AT&T's network.
---------- Post added at 10:50 AM ---------- Previous post was at 10:46 AM ----------
jeremyenos said:
Thanks Redpoint-
I hadn't considered that and am also shy to using the Dev RUU due to brick risk but will reassess that. (I have to convert my device to GPE to put that on don't I?) I recall some warnings about bricking if I change the ID of my phone and apply the wrong RUU or something- but I'll have to refresh myself on those caveats. Would have been so much simpler if AT&T had just released Lollipop but who knows how long I'd be waiting for that.
Click to expand...
Click to collapse
No, you don't need to convert to GPE to run Dev Edition RUU. Dev Ed not the same as GPE. Dev Ed is Sense, just without the AT&T branding. The US Dev Edition Lollipop ROM is actually pretty sweet (what I am currently on via RUU).
You won't likely brick the device with RUU unless you run an RUU for the wrong device.
Changing CID is safe as long as you type the command properly.
There is always some tiny risk of a brick if you mess with things s-off, and flashing hboot and radio. But I wouldn't say the risk is any more than installing the OTA (which also replaces hboot and radio) as long as you follow instructions carefully, and do the proper research, and take the proper care while performing the steps.
So thanks redpoint for the advice-
Dev edition RUU installed just fine, and updated my radio and hboot as I had hoped. I go to restore ARHD, and it fails though... even fresh install of ARHD fails with some symlink error. I think after reading up on it that this is due to partition resizing that Dev edition does. So now I can't seem to find a way to get ARHD back on the device. I have no idea what to do to the partitions to restore them to something ARHD can use again if that's the problem, and I can't find anything about it on XDA or elsewhere.
Kind of surprised by this if I'm on the only one hitting the issue... all of the issues. To my knowledge, without a radio update, no AT&T m8 in America with ARHD 34 is going to be receiving incoming calls with LTE enabled. The only way to get a radio update is to use an RUU- of which dev edition is the only one. AT&T/HTC only releasing the 4.4.4 RUU for right now it seems, without the radio and hboot update.
Maybe I've got this all wrong somehow... I can't be the only ARHD m8 AT&T LTE USA user that wants to have incoming calls right? How has anyone else accomplished this?
Stuck with Cyanogenmod for now... slower, less stable than ARHD.
jeremyenos said:
Dev edition RUU installed just fine, and updated my radio and hboot as I had hoped. I go to restore ARHD, and it fails though... even fresh install of ARHD fails with some symlink error. I think after reading up on it that this is due to partition resizing that Dev edition does. So now I can't seem to find a way to get ARHD back on the device. I have no idea what to do to the partitions to restore them to something ARHD can use again if that's the problem, and I can't find anything about it on XDA or elsewhere.
Click to expand...
Click to collapse
You're still misunderstanding about Dev Edition (DE) versus GPE. Only GPE has different partitioning from Sense. DE is still Sense, and has the same partitioning scheme as the stock AT&T (and other carrier) Sense setup.
Don't know why you are having the issues restoring ARHD nandroid and even flashing ARHD. Wipe cache and try to re-install TWRP or try a different version. Then try a "clean install" (factory reset in TWRP) of ARHD.
Or you might have a case where the DE firmware does not play well with ARHD. You can try the 401 firmware, for which ARHD is based. But this might cause as many issues as it solves, as the US DE firmware usually plays better with AT&T's network than the international firmware. But it might be worth a try.
---------- Post added at 11:31 AM ---------- Previous post was at 11:27 AM ----------
jeremyenos said:
The only way to get a radio update is to use an RUU- of which dev edition is the only one. AT&T/HTC only releasing the 4.4.4 RUU for right now it seems, without the radio and hboot update.
Click to expand...
Click to collapse
Since you are s-off, you can flash any carrier's M8 firmware, or flash the radio independently. Although a side note that you should stay away from flashing anything for CDMA (Sprint & VErizon) M8's or dual SIM M8.
If you mean there is no updated LP radio intended for AT&T, aside from the DE RUU that you are currently on; than yes that is correct.
Has this been solved? Im experiencing the same thing. I updated my m8 to the latest at&t lollipop ota. And installed xenon rom. Now i just noticed im not getting any calls. Wife is pissed lol
redpoint had my problem pegged. Just had the wrong rom w/o the radio update I think. I needed to get the developer edition from here. After applying it, I could put ARHD back on and all was good. It's been awhile, but that's how I roughly remember it.
simpl3lang said:
Has this been solved? Im experiencing the same thing. I updated my m8 to the latest at&t lollipop ota. And installed xenon rom. Now i just noticed im not getting any calls. Wife is pissed lol
Click to expand...
Click to collapse
There is no true fix for this, that I know of. Only workaround: turn off LTE in phone settings, or contact AT&T to have HD Voice (what AT&T is calling Voice Over LTE) turned off for your account. The latter is probably the best workaround if you want to continue using non-ATT ROMs; since it allows you to still utilize LTE speeds for data, and HD Voice only works if both parties have devices that support the feature (and many folks don't at this time).
redpoint73 said:
There is no true fix for this, that I know of. Only workaround: turn off LTE in phone settings, or contact AT&T to have HD Voice (what AT&T is calling Voice Over LTE) turned off for your account. The latter is probably the best workaround if you want to continue using non-ATT ROMs; since it allows you to still utilize LTE speeds for data, and HD Voice only works if both parties have devices that support the feature (and many folks don't at this time).
Click to expand...
Click to collapse
thank you for the quick reply. i will call at&t right now. and i will throw in an update.
redpoint73 said:
There is no true fix for this, that I know of. Only workaround: turn off LTE in phone settings, or contact AT&T to have HD Voice (what AT&T is calling Voice Over LTE) turned off for your account. The latter is probably the best workaround if you want to continue using non-ATT ROMs; since it allows you to still utilize LTE speeds for data, and HD Voice only works if both parties have devices that support the feature (and many folks don't at this time).
Click to expand...
Click to collapse
Update: i called, and the nice customer service lady couldnt turn off the feature. She said its part of billing something something. Damn what to do now besides turning off lte.
Should i input some apn or something? Revert radio image to an older one? Go back to kitkat?
simpl3lang said:
Update: i called, and the nice customer service lady couldnt turn off the feature. She said its part of billing something something. Damn what to do now besides turning off lte.
Click to expand...
Click to collapse
Just call again, the CS rep probably just didn't know what they were talking about. I think another user mentioned you need to talk to tech support, not the front line CS reps. Turning off HD Voice with AT&T was confirmed by at least 2 other XDA members to work.
simpl3lang said:
Should i input some apn or something? Revert radio image to an older one? Go back to kitkat?
Click to expand...
Click to collapse
Swapping radios or APNs probably won't help. Not sure about reverting to Kitkat.
redpoint73 said:
Just call again, the CS rep probably just didn't know what they were talking about. I think another user mentioned you need to talk to tech support, not the front line CS reps. Turning off HD Voice with AT&T was confirmed by at least 2 other XDA members to work.
.
Click to expand...
Click to collapse
+1000000000000000000
i guess third time calling is the charm. the first 2 calls i made, they said they couldnt turn it off, saying it was restricted. but the third person i spoke to made me turn my phone off and when it restarted it worked. i can receive calls now.. he said he turned the hd lte off in his side by putting me back to the settings i had before hd voice was added.
thanks again.
edit:
i was actually looking at this prior to making my third call to at&t. maybe it could help others. worth a try? do it at your own risk...
If for some reason the HD Voice Calling option is disabled or inaccessible on your phone after updating to Android 5.1, then you can try the following steps to fix the issue.
Navigate to Settings > More > Cellular Networks and enable the toggle switch for Enhanced 4G LTE Mode. However, if the toggle is missing then follow the steps provided below:
1.Launch the Dialer app on your phone, and dial *#*#4636#*#*.
2.Choose Phone information.
3.Enable or select VoLTE Provisioned Flag.
4.Restart the phone.
5.Go to Settings " More " Cellular networks and toggle the switch for Enhanced 4G LTE Mode, and the HD Voice calling feature should now be activated on your device running Android 5.1.
i got as far as rebooting my phone but the toggle was still missing.
Was working on Insert Coin 4.4.4, flash to OTA 4.16 5.0.2 works fine then I flashed to latest Insert Coin 7.1.9 5.0.2 I tried the following step suggested on post #13 don't see option #3 after click Choose Phone Info.
By calling AT&T turn off HD Voice you'll sacrifice anything?
First call attempt, att technical rep had me turn off phone, 1min later turn it back on and it's working now! Yay!!!
Sent from my HTC One_M8 using Tapatalk
@simpl3lang @redpoint73 Soo glad I found this thread, this was driving me nuts on my m9 running ARHD. When I called ATT they were able to take care of it and turn it off. I cannot find the setting under the *#4636#*, nor under phone settings in ARHD, Is this a setting that developers forget to include in their ROMS?
tc3sean said:
@simpl3lang @redpoint73 Soo glad I found this thread, this was driving me nuts on my m9 running ARHD. When I called ATT they were able to take care of it and turn it off. I cannot find the setting under the *#4636#*, nor under phone settings in ARHD, Is this a setting that developers forget to include in their ROMS?
Click to expand...
Click to collapse
The reason you won't find it in settings, is that "HD Voice" (or I forget what the actual toggle is called) is not a feature on non-ATT ROMs. Its an ATT-specific branding of what is more broadly being calling "Voice over LTE" or VoLTE. Further, most (or at least many) carriers worldwide have not started deploying VoLTE yet (or just starting to do so), so that is another reason why you won't see such a toggle in settings on most ROMs.
Even if such a toggle was present, I'm skeptical whether it would resolve the problem being discussed. It seems there is something unique in the way that ATT is deploying VoLTE, that is screwing with "international" based ROMs. So my hunch is that unless the ATT-specific tweaks are applied, you would still have the voice/SMS issue on LTE.
redpoint73 said:
The reason you won't find it in settings, is that "HD Voice" (or I forget what the actual toggle is called) is not a feature on non-ATT ROMs. Its an ATT-specific branding of what is more broadly being calling "Voice over LTE" or VoLTE. Further, most (or at least many) carriers worldwide have not started deploying VoLTE yet (or just starting to do so), so that is another reason why you won't see such a toggle in settings on most ROMs.
Even if such a toggle was present, I'm skeptical whether it would resolve the problem being discussed. It seems there is something unique in the way that ATT is deploying VoLTE, that is screwing with "international" based ROMs. So my hunch is that unless the ATT-specific tweaks are applied, you would still have the voice/SMS issue on LTE.
Click to expand...
Click to collapse
I can confirm that getting AT&T to turn off HD Voice fixed the issue with me. I installed SkyDragon v10. I had to call twice and go through a lot of crap to get them to do it. The last guy told me he was going to put the "opt-out" code on my number, but that wasn't technically supposed to do it. He said he was putting in that I had "requested" to opt-out (I was taking the line that it just stopped working, as I didn't want to have to deal with any fallout about having rooted and flashed my phone, perhaps that wasn't necessary, idk). So, I think you might take the short cut by saying that you want to opt out of HD voice, and that your "Brother-in-law" just did it, so you know it works. If you stick to your guns, and ask for a technical person and don't let them say no to that, you can definitely get it done.
Thanks to all of the participants on this thread I am out of a tight spot and would like to offer up a few more observations that may be helpful to the next person.
I had an LG G3 running CM13 20160504 that became unstable and I had to replace with my wife's old HTC One m8 also running CM13 20160504 (also tried 20160510 and 20160511) which, like the other phones discussed in this thread, did not get incoming calls, in fact calls did not even roll over to my Google Voice number.
Thanks to this thread I tried forcing the phone to 3g, found that I got calls and then got AT&T to turn of VoLTE (aka HD Voice) and now I can get calls while running with LTE data.
Rather than a fire-hose of details I'll just say that it seems that the G3 would get incoming calls on LTE, and I would not get the first ring then it would ring on what the caller perceived as the second ring. Whenever I was on a call I would note that I was running in 3G, after the call it went back to LTE. I assumed that it was a bandwidth issue but now I think in that lag between the callers first ring and my first ring the phone was negotiating down to a 3G connection like an old school high speed modem negotiating a call with a slower modem (anyone remember those days?). It looks like my HTC does not have the ability to negotiate down or that it was been somehow hardwired not to as there is a flag in the test menu (*#*#4636#*#*) marked "TURN OFF VOLTE PROVISIONED FLAG" which has no effect, i.e. I can press it and the is a visible deflection indicating that the phone knows that the button was pressed but the button text does not change to indicate that a toggle has been effected, calls continue to not ring and even rebooting after pressing does not make any difference.
In summary, having AT&T turn off HD Voice has me working fine with the HTC On m8 on CM13 and I am grateful to all of you for the conversation that got me out of that corner.

[Q] Slightly confused but I'm blaming AT&T... Help?!?

Okay people, here's the deal. I have tried running multiple versions of multiple ROM's, everything from 4.4.2 bases up to 5.0.2 (CM11-12-nightlies, SkyDragon v20-v40.1, Renovate 5.0- r341- r349, LeeDroid, Broken, MaximusHD, etc). When I flash a ROM I download the ROM and gapps if applicable, perform a Nandroid backup, move Zip files to the phone's memory, always preform a full wipe, sometimes twice just to be sure, and follow the Aroma or TWRP installer promts, and finally, if given the option after finishing, wipe the dalvik/cache. On 99% of these ROM's everything works fine, with the exception of being able to add/edit VPN's and the ability to receive incoming calls. After flash I can receive calls for a few days 50% of the time, then nothing. Some of the ROMs, ie. CM12, won't even show a cellular connection. My cell signal is fine, it's showing 4G LTE, but calls just go straight to voicemail, UNLESS I happen to be talking on the phone when a call comes in. In that instance it allows me to transfer to the incoming call without issue. Last night I got so frustrated that I relocked the device and ran the stock AT&T 4.4.4 RUU. Of course everything is working fine now but I really hate this stock ROM. Here's my current set-up:
Unlocked, rooted with SU 2.46, TWRP recovery 2.8.50, 4.4.4 Firmware, S-on (I CAN NOT S-OFF, I'M POOR ), H-boot 3.19.0.0000, OS/Software 3.42.502.1, Radio/Baseband [email protected] Does anyone have a fix for this or know of a ROM that mimics the Lollipop OS look/feel that works with essentially a stock AT&T M8?? I think I've been as detailed as possible but the device is Gold, if that matters HELP?!?!
bford152 said:
Okay people, here's the deal. I have tried running multiple versions of multiple ROM's, everything from 4.4.2 bases up to 5.0.2 (CM11-12-nightlies, SkyDragon v20-v40.1, Renovate 5.0- r341- r349, LeeDroid, Broken, MaximusHD, etc). When I flash a ROM I download the ROM and gapps if applicable, perform a Nandroid backup, move Zip files to the phone's memory, always preform a full wipe, sometimes twice just to be sure, and follow the Aroma or TWRP installer promts, and finally, if given the option after finishing, wipe the dalvik/cache. On 99% of these ROM's everything works fine, with the exception of being able to add/edit VPN's and the ability to receive incoming calls. After flash I can receive calls for a few days 50% of the time, then nothing. Some of the ROMs, ie. CM12, won't even show a cellular connection. My cell signal is fine, it's showing 4G LTE, but calls just go straight to voicemail, UNLESS I happen to be talking on the phone when a call comes in. In that instance it allows me to transfer to the incoming call without issue. Last night I got so frustrated that I relocked the device and ran the stock AT&T 4.4.4 RUU. Of course everything is working fine now but I really hate this stock ROM. Here's my current set-up:
Unlocked, rooted with SU 2.46, TWRP recovery 2.8.50, 4.4.4 Firmware, S-on (I CAN NOT S-OFF, I'M POOR ), H-boot 3.19.0.0000, OS/Software 3.42.502.1, Radio/Baseband [email protected] Does anyone have a fix for this or know of a ROM that mimics the Lollipop OS look/feel that works with essentially a stock AT&T M8?? I think I've been as detailed as possible but the device is Gold, if that matters HELP?!?!
Click to expand...
Click to collapse
LOL Nothing?!?!
bford152 said:
LOL Nothing?!?!
Click to expand...
Click to collapse
Well, I read your thread yesterday, but I don't really know an answer (which is why I hesitate to respond). I can only guess here.
What I can say, although I'm not a user of CM12, but I believe the hboot you have and radio should be fine with CM12.
However, I have seen some folks using Euro based ROMs having some issues (primarily on LTE it seems) and not getting voice calls, like you.
So as you somewhat guessed, AT&T's network is probably to blame (at least that is my guess) in that some feature of the Euro based ROMs (possibly build.prop?) doesn't play well with AT&T's LTE network. It wouldn't be the first time something like this has cropped up. It seems that AT&T likes to do some (frustratingly) unique things in build.prop from just about every other carrier in the world, that causes headaches on custom ROMs. So if your are hell bent on using CM12, you might try to edit build.prop at least to start, if you are comfortable doing so.
---------- Post added at 10:04 AM ---------- Previous post was at 10:02 AM ----------
bford152 said:
Does anyone have a fix for this or know of a ROM that mimics the Lollipop OS look/feel that works with essentially a stock AT&T M8??
Click to expand...
Click to collapse
You might try a GPE ROM that supports 4.4.4 firmware, and see if the result is any better.
redpoint73 said:
Well, I read your thread yesterday, but I don't really know an answer (which is why I hesitate to respond). I can only guess here.
What I can say, although I'm not a user of CM12, but I believe the hboot you have and radio should be fine with CM12.
However, I have seen some folks using Euro based ROMs having some issues (primarily on LTE it seems) and not getting voice calls, like you.
So as you somewhat guessed, AT&T's network is probably to blame (at least that is my guess) in that some feature of the Euro based ROMs (possibly build.prop?) doesn't play well with AT&T's LTE network. It wouldn't be the first time something like this has cropped up. It seems that AT&T likes to do some (frustratingly) unique things in build.prop from just about every other carrier in the world, that causes headaches on custom ROMs. So if your are hell bent on using CM12, you might try to edit build.prop at least to start, if you are comfortable doing so.
---------- Post added at 10:04 AM ---------- Previous post was at 10:02 AM ----------
You might try a GPE ROM that supports 4.4.4 firmware, and see if the result is any better.
Click to expand...
Click to collapse
I tried with a few SD builds and same result. I wouldn't even know where to begin to edit build.props. Thanks though
bford152 said:
I wouldn't even know where to begin to edit build.props. Thanks though
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Click to collapse
Yeah, and build.prop might not even fix it. I think AT&T also messes with the signal icons, which screws up some stuff as well (believe it or not).
But you can't possibly be the only one on AT&T trying to use CM12? I have to think this is a known problem.
redpoint73 said:
Yeah, and build.prop might not even fix it. I think AT&T also messes with the signal icons, which screws up some stuff as well (believe it or not).
But you can't possibly be the only one on AT&T trying to use CM12? I have to think this is a known problem.
Click to expand...
Click to collapse
Whats really insane to me is I was running CM12 perfectly fine on my AT&T branded M7 months ago with the same exact setup. Obviously the 4.4.2 updated to 4.4.4 as well did TWRP and SuperUser but those are the only changes other than the device. Oddly enough, Renovate's nightly releases based on Lollipop work fine. No issues at all, and I'm getting better signal than on the official 4.4.4
bford152 said:
Whats really insane to me is I was running CM12 perfectly fine on my AT&T branded M7 months ago with the same exact setup.
Click to expand...
Click to collapse
Maybe AT&T made some specific changes to the radio for Voice Over LTE (VoLTE) in the latest M8 OTA, that isn't playing well with CM12? I know VoLTE was implemented in the OTA, so this is certainly a possibility, now that I think about it.
Unfortunately, if that is the case, downgrading the radio isn't allowed with s-on.
bford152 said:
Oddly enough, Renovate's nightly releases based on Lollipop work fine. No issues at all, and I'm getting better signal than on the official 4.4.4
Click to expand...
Click to collapse
Better signal based on what, dBm?
redpoint73 said:
Maybe AT&T made some specific changes to the radio for Voice Over LTE (VoLTE) in the latest M8 OTA, that isn't playing well with CM12? I know VoLTE was implemented in the OTA, so this is certainly a possibility, now that I think about it.
Unfortunately, if that is the case, downgrading the radio isn't allowed with s-on.
Better signal based on what, dBm?
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Click to collapse
dBm and dB. Yeah the VoLTE thing is the only thing that I can think of. I mean they were lethargic in getting 4.4.4 pushed out bc of it not wanting to play nice, and I'm assuming that's the issue with 5.0.1 siiiiiiiiiince we're the only carrier without it. Still.
bford152 said:
dBm and dB.
Click to expand...
Click to collapse
That is odd, I would not think the same radio with a different ROM would yield better signal in dBm.
I went through the same thing yesterday,. The difference was that I was running ViperOneM8 ROM (and really liked it). I contacted the Venom support folks and they indicated that they are aware and that it's the new AT&T HD voice (VoLTE) causing problems and there is no solution at present. Weirdest thing, I was able to receive calls... but only when I was not on the LTE network. The ROM would not let me select my network. I got some error when I tried that.
I relocked bootloader, ran RUU... then tried installing "HTC_One_M8_Lollipop_5.0.1LRX22C" which I ran in the past with no issues. I was unable to receive calls with this ROM as well. However this ROM does allow me to select between 2G, 3G and 4G (LTE) cellular networks and as long as I selected 2G or 3G, I receive calls just fine. Selecting the LTE option forces all calls directly to voice mail.
Until this gets resolved, looks like I am stuck.
GA_Android said:
I went through the same thing yesterday,. The difference was that I was running ViperOneM8 ROM (and really liked it). I contacted the Venom support folks and they indicated that they are aware and that it's the new AT&T HD voice (VoLTE) causing problems and there is no solution at present. Weirdest thing, I was able to receive calls... but only when I was not on the LTE network. The ROM would not let me select my network. I got some error when I tried that.
I relocked bootloader, ran RUU... then tried installing "HTC_One_M8_Lollipop_5.0.1LRX22C" which I ran in the past with no issues. I was unable to receive calls with this ROM as well. However this ROM does allow me to select between 2G, 3G and 4G (LTE) cellular networks and as long as I selected 2G or 3G, I receive calls just fine. Selecting the LTE option forces all calls directly to voice mail.
Until this gets resolved, looks like I am stuck.
Click to expand...
Click to collapse
This ROM works perfectly with your/mine current setup. I'm on ROM v7.0.1. The only issue? No AT&T visual voicemail.
http://forum.xda-developers.com/htc-one-m8/development/rom-leedroid-one-m8-l-v1-0-5-t3019102
bford152 said:
This ROM works perfectly with your/mine current setup. I'm on ROM v7.0.1. The only issue? No AT&T visual voicemail.
http://forum.xda-developers.com/htc-one-m8/development/rom-leedroid-one-m8-l-v1-0-5-t3019102
Click to expand...
Click to collapse
What is your setup?
Double_a2013 said:
What is your setup?
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Click to collapse
See the original post... it was by me and lists everything but basically it's stock AT&T 4.4.4 S-on.
bford152 said:
See the original post... it was by me and lists everything but basically it's stock AT&T 4.4.4 S-on.
Click to expand...
Click to collapse
I'm in the same boat (S-off thought), and having the same VoLTE issues. Did that ROM work for you?
Double_a2013 said:
I'm in the same boat (S-off thought), and having the same VoLTE issues. Did that ROM work for you?
Click to expand...
Click to collapse
Yuppers, this is the only ROM that has allowed me to receive calls and working WiFi. Been running it for two weeks now. Yet again, no visual voicemail but that's an AT&T issue since they haven't updated to a Lollipop build.
bford152 said:
Yuppers, this is the only ROM that has allowed me to receive calls and working WiFi. Been running it for two weeks now. Yet again, no visual voicemail but that's an AT&T issue since they haven't updated to a Lollipop build.
Click to expand...
Click to collapse
My issue has been I can either receive calls and stuck on HSPA+ or calls go straight to voice-mail and I get an LTE signal. Are you getting a LTE signal?
Double_a2013 said:
My issue has been I can either receive calls and stuck on HSPA+ or calls go straight to voice-mail and I get an LTE signal. Are you getting a LTE signal?
Click to expand...
Click to collapse
A very strong 4G LTE signal AND this is one of the fastest ROM's I've EVER tried. Btw, the battery life is AMAZING. I can easily get a full day and a half of regular use out of one full charge
It may work for your setup, but it did not work for me. The Venom support team would not even waste time troubleshooting (understandable) since it was a known issue/limitation.
GA_Android said:
It may work for your setup, but it did not work for me. The Venom support team would not even waste time troubleshooting (understandable) since it was a known issue/limitation.
Click to expand...
Click to collapse
Dude, I'm not talking about a Venom ROM. I'm using the ROM found here http://forum.xda-developers.com/htc-one-m8/development/rom-leedroid-one-m8-l-v1-0-5-t3019102 LeeDroid has it working fine but ViperOne, SD, Android Revolution, CM12, etc all had the issues you're complaining about. Try it and then thank me. Make a nandroid backup. Worst case scenario? You waste a few minutes and can say "I told you so"
To make this as plain as possible, if your device is on the current AT&T issued 4.4.4 release, LeeDroid's Lollipop/Sense 7 ROM WILL WORK FOR YOU!!

[Q] Wonky LTE/Call performance on custom roms

Every time I flash a custom ROM based on 4.16.X firmware I either lose LTE (though HSPA+ still works perfectly) or the ability to receive calls. I've tried ARHD, SD, the Stock WWE, and the US DEV edition, and all of them have exactly one of those issues (it's never both). I'm currently back on ATT stock 4.4.4 ROM (3.42.502.1 firmware), rooted, S-Off.
I thought flashing the WWE RUU before flashing a ROM like ARHD would be enough to upgrade the firmware, but maybe I'm missing something.
Double_a2013 said:
Every time I flash a custom ROM based on 4.16.X firmware I either lose LTE (though HSPA+ still works perfectly) or the ability to receive calls. I've tried ARHD, SD, the Stock WWE, and the US DEV edition, and all of them have exactly one of those issues (it's never both). I'm currently back on ATT stock 4.4.4 ROM (3.42.502.1 firmware), rooted, S-Off.
I thought flashing the WWE RUU before flashing a ROM like ARHD would be enough to upgrade the firmware, but maybe I'm missing something.
Click to expand...
Click to collapse
WWE RUU indeed updates the firmware, however to the WWE radio and other firmware.
I think a couple things are going on here (assuming your are on AT&T's network):
1) A number of folks have reported call issues while on AT&T's LTE network and running WWE based custom ROMs. The suspicion is that the changes being made by AT&T in advance of HD Voice (Voice over LTE) deployment is not playing well with Euro based ROMs. AFAIK, there doesn't seem to be a fix for this, although I think some devs like Team Viper are looking into it.
2) US Dev Edition is intended to be used on AT&T's network. However, its not clear from your description, but it seems you are using the WWE firmware (radio probably most importantly) with the Dev Ed ROM. If you haven't already, try the Dev Edition firmware with the Dev Ed ROM; either by RUU or flashing the firmware separately. That is the configuration I was running until just last week (giving Sense 7 a try) and seemed to have no issues on AT&T, including travel to a couple different locations around the country.
redpoint73 said:
WWE RUU indeed updates the firmware, however to the WWE radio and other firmware.
I think a couple things are going on here (assuming your are on AT&T's network):
1) A number of folks have reported call issues while on AT&T's LTE network and running WWE based custom ROMs. The suspicion is that the changes being made by AT&T in advance of HD Voice (Voice over LTE) deployment is not playing well with Euro based ROMs. AFAIK, there doesn't seem to be a fix for this, although I think some devs like Team Viper are looking into it.
2) US Dev Edition is intended to be used on AT&T's network. However, its not clear from your description, but it seems you are using the WWE firmware (radio probably most importantly) with the Dev Ed ROM. If you haven't already, try the Dev Edition firmware with the Dev Ed ROM; either by RUU or flashing the firmware separately. That is the configuration I was running until just last week (giving Sense 7 a try) and seemed to have no issues on AT&T, including travel to a couple different locations around the country.
Click to expand...
Click to collapse
Yeah, I'm on AT&T's network. So I should just download the dev edition ROM from HTC's website and RUU it?
Double_a2013 said:
Yeah, I'm on AT&T's network. So I should just download the dev edition ROM from HTC's website and RUU it?
Click to expand...
Click to collapse
If you don't mind wiping the phone (backup any personal data that you want to keep before RUU, obviously), then yes that is probably the easiest way to do it.
redpoint73 said:
If you don't mind wiping the phone (backup any personal data that you want to keep before RUU, obviously), then yes that is probably the easiest way to do it.
Click to expand...
Click to collapse
I just did; LTE is working, but I can't receive calls. When someone calls me, it goes directly to voice mail without ringing
EDIT:
So I actually got a call to come through. When it did, LTE went away and wouldn't comeback, so it definitely seems like an issue of VoLTE compatibility, even on the Dev Edition ROM for me.
Double_a2013 said:
I just did; LTE is working, but I can't receive calls. When someone calls me, it goes directly to voice mail without ringing
EDIT:
So I actually got a call to come through. When it did, LTE went away and wouldn't comeback, so it definitely seems like an issue of VoLTE compatibility, even on the Dev Edition ROM for me.
Click to expand...
Click to collapse
Weird. I wouldn't think that you would have the issue on Dev Edition ROM, running Dev Edition firmware.
Can you confirm the RUU properly installed the Dev Ed radio, by stating your radio number?
Forgot to mention that turning off LTE is a workaround. But obviously less than ideal.
redpoint73 said:
Weird. I wouldn't think that you would have the issue on Dev Edition ROM, running Dev Edition firmware.
Can you confirm the RUU properly installed the Dev Ed radio, by stating your radio number?
Forgot to mention that turning off LTE is a workaround. But obviously less than ideal.
Click to expand...
Click to collapse
The radio that was installed was 1.24.21331147A1.09G_20.68.4196.01_F
Double_a2013 said:
The radio that was installed was 1.24.21331147A1.09G_20.68.4196.01_F
Click to expand...
Click to collapse
I confirm that is the correct US Dev Edition radio baseband.
Weird, I've used mine (as mentioned) not only in my home area of Boston (and surrounding areas) but also while travelling to North Texas, and Washington State, and didn't see any issues. But that is by no means exhaustive. We really have little way of knowing what changes AT&T is making to their LTE network and where (in preparation for HD Voice).
You might fall back to the AT&T 4.4.4 ROM (and even the corresponding radio) to see what will happen. But that's of course kind of disappointing to fall back to KitKat from Lollipop.
You can even try the WWE firmware (4.16.401) zip. But I'd be very surprised if you get a better result on the WWE radio versus the Dev Edition.

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