How to enable VoLTE after Android Nougat Update on HTC One A9

[pankajupadhyay05]

I am facing a strange issue after updating to Nougat. The VoLTE functionality is missing and I can't make or receive calls since mine is an LTE only network. On Marshmallow, there was a setting for VoLTE but in the update 2.18.617.21, the same is missing. While checking threads, I came across *#*#4636#*#* to check the settings. There too it shows "TURN OFF VOLTE PROVISIONED FLAG" meaning VoLTE is enabled. But still, I cant make or receive calls. In some post there was a mention of enhanced LTE services in settings, so I searched for it in settings and there indeed is a setting of "Enhanced LTE Services", but when I tap on it, it takes me to "More" settings under "Wireless & Networks". May be the setting is missing or not showing. Please advise me what to do. It's urgent. Thanks

 

[pankajupadhyay05]

The problem was specific to Nougat I suppose. I downgraded to Marshmallow and it's working fine now. Used the 1.15.617.20 firmware and exe file to downgrade. Also, the experience is more fluid on Marshmallow. I will highly recommend it over Nougat. Strange life. Asked lot of questions about updating to Nougat, then when I had it, it wasn't worth the time and effort. The phone is great and works charm on Marshmallow.

 

[gaurav tandel]

The problem was specific to Nougat I suppose. I downgraded to Marshmallow and it's working fine now. Used the 1.15.617.20 firmware and exe file to downgrade. Also, the experience is more fluid on Marshmallow. I will highly recommend it over Nougat. Strange life. Asked lot of questions about updating to Nougat, then when I had it, it wasn't worth the time and effort. The phone is great and works charm on Marshmallow.

bro,can you give me link info and flash mathod?
i m no root no bootloader unlock.
i m facing the same problem.

 

[pankajupadhyay05]

bro,can you give me link info and flash mathod?
i m no root no bootloader unlock.
i m facing the same problem.

Sorry bro for the late reply. I saw your message that time but after the reset didn't install the xda app so forgot to reply. Are you able to do downgrade or need help. Even if you don't, following is what I done to downgrade from nougat to marshmallow.

I downloaded the firmware zip for 1.57.617.20 from this link and downloaded the 1.57.617.20 .exe file from collection RUU thread. First i copied the firmware.zip to sd card and flashed it by going into download mode (pressing vol down and power key). After that I ran the .exe file from laptop. You need to have HTC Sync manager installed for detecting your device. Then the device took some time and rebooted with marshmallow. Now i ignore update messages.

Hope it helps.

 

[gaurav tandel]

Sorry bro for the late reply. I saw your message that time but after the reset didn't install the xda app so forgot to reply. Are you able to do downgrade or need help. Even if you don't, following is what I done to downgrade from nougat to marshmallow.

I downloaded the firmware zip for 1.57.617.20 from this link and downloaded the 1.57.617.20 .exe file from collection RUU thread. First i copied the firmware.zip to sd card and flashed it by going into download mode (pressing vol down and power key). After that I ran the .exe file from laptop. You need to have HTC Sync manager installed for detecting your device. Then the device took some time and rebooted with marshmallow. Now i ignore update messages.

Hope it helps.

Thank you thank you so much bro..happy with volte with jio

 

[pankajupadhyay05]

Thank you thank you thank you so much bro
...now happy with volte

Glad I could help. Marshmallow works much better on this mobile. Stay away from Nougat. If you get the update notification, just go to settings >> about >> Software update and hit back button immediately before the software search completes. This will remove the update notification temporarily. I use this once a day to avoid the update notification.

 

[gaurav tandel]

Glad I could help. Marshmallow works much better on this mobile. Stay away from Nougat. If you get the update notification, just go to settings >> about >> Software update and hit back button immediately before the software search completes. This will remove the update notification temporarily. I use this once a day to avoid the update notification.

Ok

 

[CSnowRules]

I am facing a strange issue after updating to Nougat. The VoLTE functionality is missing and I can't make or receive calls since mine is an LTE only network. On Marshmallow, there was a setting for VoLTE but in the update 2.18.617.21, the same is missing. While checking threads, I came across *#*#4636#*#* to check the settings. There too it shows "TURN OFF VOLTE PROVISIONED FLAG" meaning VoLTE is enabled. But still, I cant make or receive calls. In some post there was a mention of enhanced LTE services in settings, so I searched for it in settings and there indeed is a setting of "Enhanced LTE Services", but when I tap on it, it takes me to "More" settings under "Wireless & Networks". May be the setting is missing or not showing. Please advise me what to do. It's urgent. Thanks

VoLTE option is now located under settings>call.

 

[Jovil15]

Thank you thank you so much bro..happy with volte with jio

Did u tried this on htc one a9????....

 

[gaurav tandel]

Did u tried this on htc one a9????....

Yupp..works for me

 

[Jovil15]

Can u help how do thiss..

 

[prisat]

Hi Friends, in my case the bootloader is locked and s off.
I can run .exe in this or I have to unlock bootloader first?

---------- Post added at 11:35 AM ---------- Previous post was at 10:46 AM ----------

Thank you thank you so much bro..happy with volte with jio

Downgrade to marshmallow, volte service in working in India? without installing jio voice app.
Can you explain step by step......to run .exe

 

[sidy1881]

The problem was specific to Nougat I suppose. I downgraded to Marshmallow and it's working fine now. Used the 1.15.617.20 firmware and exe file to downgrade. Also, the experience is more fluid on Marshmallow. I will highly recommend it over Nougat. Strange life. Asked lot of questions about updating to Nougat, then when I had it, it wasn't worth the time and effort. The phone is great and works charm on Marshmallow.

Hi i just want to know will this work on hiaeuhl as the ruu file is for US i think

 

[rishilav]

Thanks for your message,
If possible can you plz. explain the full process in more detailed steps .
Unable to follow your above explanation exactly, Also is there any other location of file as its not getting downloaded.

Thanks & regards

 

[Cyberintel21]

Ask

The problem was specific to Nougat I suppose. I downgraded to Marshmallow and it's working fine now. Used the 1.15.617.20 firmware and exe file to downgrade. Also, the experience is more fluid on Marshmallow. I will highly recommend it over Nougat. Strange life. Asked lot of questions about updating to Nougat, then when I had it, it wasn't worth the time and effort. The phone is great and works charm on Marshmallow.

Hemmm nice information dude...in nougat baterry consumsion feel more high ada quick charge i thing more slowly...you are right the A9 more better if stay use android M

 

[anandandrade]

VoLTE option is now located under settings>call.

I can't locate. Can you please help

 

[CSnowRules]

I can't locate. Can you please help

My apologies for the late response. The option is at the very bottom under the call settings menu. See the pics. My options are greyed out since there's no sim installed.