yashsingh1/xdaforums huggingface dataset:
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] SilentEYE:
Yes that's true. But most of us got the reboots even on stock kernel.

Maybe it's a faulty mix of kernel, modem, magisk and its addons.

I am now happy. After 6 months and many tries I don't seem to be plagued by this bug anymore.
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] Evomod:
Hey Guys, if got a Axon 7 and want to flash it to LineageOS.

This phone sould be my daily driver, so i want to ask if there are any known issues with this "Lineage Official Weekly Builds" or if there are other thinks i sould know before I switch to LineageOS?

Just ask because, years ago i used this "nightly" ROMs at my ZTE Blade and they had some serious bugs.

Hope someone of you can help me :).
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] eaponte23:
No serious issues tbh. Read about a sound bug on calls but I haven't had that so search a lil and form your own opinion.
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] Evomod:
Thanks, I will test LineageOS 14.1 in the newest nightly.
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] robertaramar:
I'm afraid it's not an issue of a combination. I run plain Los no root, no magisk no custom kernel and I do have reboots every other day.

I do not make excessive use of my phone over the course of the day.
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] Dodgexander:
I'm not sure what has gone wrong but I discovered yesterday that I can't make calls anymore. I am using the latest nightly with Beastmode kernel. Would be nice to find a solution without having to reinstall everything.

The calls sometimes are placed, but the phone app doesn't update. It doesn't show the "in call" screen or notification. Never had this problem before. A2017U.

Also, for some bizare reason every time I install the rom it defaults to format data with F2FS which means the phone boots as if it thinks its encrypted. This makes it impossible to flash without wiping the data partition if you want to keep using the stock kernel. Any idea why it defaults /data to F2FS when its not even supported by the stock kernel?
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] SilentEYE:
With stock kernel there aren't any problems. Extract the boot.img from the kernel and flash it through twrp (select img flash).
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] Dodgexander:
I just tested with the stock kernel and I have problems. I guess it might be an open gapps issue...or a dual sim issue.
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] GalaxyFan88:
First of all I would like to thank all who contributed to making LOS14.1 possible on the Axon 7. I am quite satisfied with the overall software experience.

However there is one major bug which is bugging me. The flashlight tile sometimes stops working for me. Yesterday it worked, then I was doing stuff here and there on the phone and it stopped working. After waiting some time it worked again. Today I booted my phone (it was off during sleep) and the flashlight tile does not turn the flashlight on.

What can I do to remedy this issue? Any help would be appreciated :o

BTW, I'm on 17/12/18 weekly

Edit: Flashing the newest weekly 17/12/25 the issue went away. I wonder if it will be persistent.

Edit2: Stopped working again :(
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] wolframio0:
That happened to me once and I solved it by accessing and exiting the tiles' edit menu (tapping the pencil at the top)
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] amaury48:
The auto update under settings returns "update failed, check internet connection". Was wondering, if I manually download any updates can I just flash the update or do I also have to reflash gapps. Also do I have to just clear cache/dalvik or totally clean flash?
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] olus:
just flash the update. no need to flash gapps everytime, no need for clear cache/dalvik. just a dirty flash..
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] GalaxyFan88:
Wow! This is indeed working. Thank you! :victory:
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] GaTTo0:
Hi

is slow-motion video 720@240fps working in this room?

Thanks
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] GammaRay654:
-bug?-

When I receive an audio in whatsapp, sometimes when listening through the speaker phone, the proximity sensor works correctly but the audio does not play and when the phone restarts it works again but only for a while, do you know something about it?

Many thanks for the great job!
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] gregsoir:
is it possible to swap back button with last apps button? i'm used to have back button on the right
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] atakan33:
flash this

https://xdaforums.com/axon-7/themes/invert-menu-buttons-flashable-zip-t3556518
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] MoresM:
Hi!

Searching back through the thread I have noticed -albeit rarely- that people report call quality issues with this ROM.

Are these issues still present?
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] leska:
Simple open settings, Configurations, tab Buttons, Hardware keys, then redefine single tap action on the Back button (-> Recents) and Overview button (-> Back).

Сonfused threads. This instruction for Rsurection Remix.
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] TekHead2:
Issues

I've done everything right like 4 times, tried formatting data, and tried a different Lineage build but it keeps freezing on the boot animation than shuts down. Help please?
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] jawz101:
Do you have the U.S. version of the phone?

If you installed through TWRP recovery and you have the correct baseband referenced in the first post, check the sha256 or sha1 hash of the zip file.

There's a link under each release

https://download.lineageos.org/axon7

Here's a safe, free app to calculate hash files

http://nirsoft.net/utils/hash_my_files.html

This just makes sure the zip file is not corrupt
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] atakan33:
İs there call bug on latest build ?
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] badgone88:
Hi,

Everthing is OK for me but I have only one issue : when i plug my phone on my PC, nothing happen. I can't choose Charging/Transfert Files/Photos...

Any idea ? Thanks
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] jawz101:
I have no idea what a call bug might be. I've never had a call bug since owning this device and have always been on CM/LOS so I'll just say yes it's still here. Don't install. Stay on stock.
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] celticchrys:
There is a quite long-standing call bug on the Axon 7 on Lineage OS, where you place a call, and the person on the other end cannot hear you until you turn speakerphone on and then back off again. Until you do this, the microphone doesn't work. The bug is intermittent for many people. It's mentioned in this thread many times.
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] Reiyer:
Is there an updated modem from B32?
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] TPMJB:
You have to select it from the development menu sometimes. This bug has been out forever.
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] Soyunamortz:
How it's battery life on these rom ?

What cameras are been use on rom ?
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] lichtblitz:
Just installed LOS 14.1 on my A2017G:

- A2017G-N-B08-MODEM

- A2017X_B15_Universal_Bootloader

- lineage-14.1-20171225-nightly-axon7-signed

- addonsu-14.1-arm64-signed

- open_gapps-arm64-7.1-pico-20171225

However what still does not work is proper Bluetooth connection with my car (2017 Skoda Octavia)

What is needed:

1. pairing

2. importing contacts

3. importing pictures of contacts

3. making and answering a call

4. playing music

5. importing, browsing and navigating music lists

Tested so far:

A. ZTE_A2017GV1.0.0B10 Stock

1. pairing - OK

2. importing contacts - OK

3. importing pictures of contacts - OK

3. making and answering a call - OK

4. playing music - OK (by initiating it on both car and phone)

5. importing, browsing and navigating music lists - OK

B. ZTE_A2017GV1.2.0B05 Stock

1. pairing - OK

2. importing contacts - OK

3. importing pictures of contacts - OK

3. making and answering a call - OK

4. playing music - OK (by initiating it on phone)

5. importing, browsing and navigating music lists - NOT WORKING!

C. lineage-14.1-20171225-nightly-axon7-signed

1. pairing - OK

2. importing contacts - OK

3. importing pictures of contacts - NOT WORKING!

3. making and answering a call - OK

4. playing music - OK (by initiating it on phone)

5. importing, browsing and navigating music lists - NOT WORKING! Works only sometimes after rebooting the phone while car radio still on.

D. RR-N-v5.8.5-20171108-axon7-Official

1. pairing - OK

2. importing contacts - NOT WORKING!

3. importing pictures of contacts - NOT WORKING!

3. making and answering a call - OK

4. playing music - OK (by initiating it on both car and phone)

5. importing, browsing and navigating music lists - OK

All tested with BTFM.bin from A2017X_B15_Universal_Bootloader and the one from ZTE_A2017GV1.0.0B10

Does anybody know where to look for fixing this?

What ist the best way to log Bluetooth handshakes and connections?

Thx in advance
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] noremacyug:
Anyone have any issues with google assistant? I keep getting "problem with microphone" messages when trying to setup voice match. I have given permissions to the google app.

Edit- got it sorted out via google and locating a zip file that fixed it.
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] jawz101:
If you click on the cog wheel of an established Bluetooth connection does it give you checkboxes to allow the supported Bluetooth profiles?

*Also, if the keyboard comes up you may have to minimize it to see all if there are more than 2 BT profiles available.
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] noremacyug:
Having an issue with the way my 128gb SD card mounts. I selected it to be mounted as removable storage. However, after a reboot it seems to have shifted to the other option that I assume is supposed to expand the phone's storage or something. Either way, it's definitely reading wrong in the settings/storage section and is certainly not what I initially selected. Any thoughts/fixes? Have some screenshots to show what's going on but XDA app not cooperating.
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] kdp162:
It's a known bug.. It'll read right in a file explorer just not in storage
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] noremacyug:
Good deal. I can live with that. Any way to get android pay going?
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] haerwu:
Install Magisk and Android Pay should work.
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] atakan33:
ro.qc.sdk.audio.fluencetype=none persist.audio.fluence.voicerec=true persist.audio.fluence.speaker=false use.voice.path.for.pcm.voip=true

that build.prop changes may be useful for call bug.
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] noremacyug:
I was looking into that. I'm currently not rooted but the bootloader is still unlocked. Is magisk a pain to get going from where I stand and will it lock the boktloader?
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] lichtblitz:
Definitely. I have 4 profiles, all enabled.: Phone-Audio, Musik-Audio (both working), contacts, and messages (SMS-access working too).

I've just tested two other phones BQ Aquaris Plus (gohan) and LGG4 (h815) both with current LOS and both working with my car w/o any problems.

There is really something wrong with Bluetooth on ZTE Axon 7 A2017G.
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] mario972:
It won't, you just have to flash it right after ROM+Gapps to get best results.
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] noremacyug:
Is it that simple? I thought I read where adb was involved. I can just flash with twrp? Thought I saw something about needing a stock boot something or other as well.
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] JTruj1ll0923:
IIRC, that is for people who don't have TWRP or want to keep stock recovery. So, with TWRP it is that simple.
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] noremacyug:
Excellent. I'll have to give that a try.
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] noremacyug:
got magisk installed, android pay took my card info. now to test it out. thanks people.
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] GaTTo0:
Hi is 720p@240fps video working?

thanks
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] awsomjgp:
Yep.
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] Sn8K:
Hi. Sorry for the noob-like question, but i need to know :

What are the advantage of ineage on the a2017G ? I mean versus Stock.

I've always used lineage for outdated devices only (like sammy P5100 for exemple, max stock android 4.4, but 6 with lineage), but here, it's not the case. So is it worth flashing it ? Why ? Advantages ? Cons ?

Thx guys by advance.

Edit : It's not a troll question, but a real one.
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] ShiverStorm:
Many here may disagree or agree.. But personally I like lineage mostly because of the themeing. Substratum is amazing and doesn't work on stock (at least until oreo is released). It also seems to have better battery life.

However things I like on stock better are wifi calling (not on lineage) and I noticed an immediate difference (an increase actually) in reception when I switched back to stock. Maybe ZTE hasn't released the drivers so lineage just had to make due?

They both definitely have pros and cons. But they're both solid and smooth. I haven't had any crashes or force closes on either.
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] Infy_AsiX:
I thought Lineage doesn't support OMS so Substratum works the same as stock as legacy.
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] ShiverStorm:
Oh that's right.. My bad you're right.
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] jw1985:
But I think swift black works?
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] aLexzkter:
As legacy.
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] jw1985:
Aha!
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] Choose an username...:
You can theme the apps and even a couple of stock apps like the calculator.

In Lineage with RRO I'm not sure if you can theme systemui anyways

---------- Post added at 04:47 AM ---------- Previous post was at 04:40 AM ----------

You get stock Android which you may prefer from an aesthetical standpoint. Comparable performance. Much more frequent updates though they might be mostly bug fixes. Audio is routed entirely through the AK4490 DAC (maybe you need the AK4490 patch, I don't know if they integrated it or not)

Cons are that the camera is worse, and stock may be slightly faster.

In all honesty you should just try both, see which one you prefer. Remember to have TWRP 3.2.1-0.img on the phone, and flash after flashing the universal bootloader, like:

Make sure you are on the latest TWRP (3.2.1-0)

Wipe

Flash the Universal Bootloader

Flash the ROM

Flash the modem file

Flash Magisk 15.2 or SuperSU 2.79

Flash OpenGApps if you wanna

Install Image -> Flash TWRP 3.2.1-0.img

if you don't, the univ bootloader will install a very old version.
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] DrakenFX:
yeah, i just realize that LoL , :D
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] ThaHaloMilitia:
I need to get my stock recovery back for B29 so I can root and unlock the bootloader. Anyone have it
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] DrakenFX:
you don't need Stock recovery to flash official ZTE updates. just download B29 from ZTE site and flashed using TWRP. B29 file WILL WIPE Data so be aware of that.

or you can Mod the B29 file and delete that line from the updater_script
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] ThaHaloMilitia:
So how do I flash it?
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] lafester:
This makes no sense, but zte has b29 posted as far as I know.
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] ThaHaloMilitia:
I'm so confused at how I root, unlock the bootloader and install TWRP on B29. Can you guys help
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] ashishv:
Everything you need is here:https://xdaforums.com/axon-7/how-to/guides-info-info-a2017u-bootloader-t3440254
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] Kevinkuensken:
can we now revert to B29 if we on Nougat?One say yes only flash B29 Update.zip.And one say no.Can anyone say it Pls
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] lafester:
People seem to like the guide in the twrp thread.
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] lokissmile:
Unzip the B29 you download from ZTE support. Copy recovery.img to your SD card and use the flash image function to flash to the recovery partition in TWRP.

As far as unlocking the bootloader you actually need to be on B20 to do that. If you go to the official TWRP thread there is a zip with all the files you need to go back to B20 unlock and then reupgrade to B29. You need to be on latest TWRP to flash the current SuperSU 2.79.
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] ThaHaloMilitia:
I don't have TWRP at all lol

---------- Post added at 04:43 AM ---------- Previous post was at 04:42 AM ----------

Can I get the link? :)
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] lokissmile:
https://xdaforums.com/axon-7/development/recovery-official-twrp-zte-axon-7-t3515715

It's in the OP
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] Unjustified Dev:
Going to test the new update to make sure it works ok and I'll share the link. If I don't in the next 30mins assume I'm sleep.
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] Unjustified Dev:
New build is now updated here's a direct link

https://www.androidfilehost.com/?fid=745425885120704984

Changelog (hate doing these oh well)

* Using Axon 7 naming for builds now same as AOKP

* Added 7.1.1 Fingerprint blobs (Provided by ZTE)

* Fixed initialization of goodix fingerprint driver

* Enforcing SELinux

* Updated blobs to latest internal goodies (Thought I was going to tell you :laugh:)

* Pulled kernel to upstream caf tag LA.UM.5.5.r1-02800-8x96.0

* Pulled GPS to upstream caf tag LA.UM.5.5.r1-02800-8x96.0

* Pulled in CVE fixes from Oneplus3 kernel (We are now inline with their kernel too)

On a side note everything for official support for 14.1 is on gerrit now (Waiting on the word to make it happen)
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] WesTD:
thank you. I've more question. bootloader is locked again when you flashed?

please answer me on PM. let's don't make dirty to topic. :)
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] amphi66:
Boy, it's been since November, but I am pretty sure I was freshly OTA'd to B29 when I flashed [MENTION=3044858]DrakenFX[/MENTION] unlock image. Did I miss a major change in one of the threads?
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] lokissmile:
The fastboot that allows unlocking is only available pre B29 I think that B27 may have allowed it you'd have to ask DrakenFX I've relocked and unlocked several times using multiple methods. The method in the TWRP thread is by far the most straightforward and safest as you don't need to use TWRP.
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] reV17:
Well back to the topic at hand, Dirty Flashed the new build from 02-02 and can confirm that Fingerprint does work. Unlocks, registers, all that good stuff. Nicely done guys.
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] ThaHaloMilitia:
I lost my stock recovery and can't get it back. I get a black screen when booting into it and if I try to flash, it fails

---------- Post added at 05:45 AM ---------- Previous post was at 05:45 AM ----------

Can't flash TWRP either for some reason
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] Pointro:
Same here. Fingerprint is working fine.
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] gpz1100:
I think B19 was the last stock version I used. Switching to resurrection remix (similar to lineage but a few more config options baked in), I immediately found it to be more responsive. Haven't tried b25 or b32. Have those improved?
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] Soyunamortz:
Yes they have even battery it's great
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] bmckenna:
Bluetooth issues over here. Beatsx headphones not recognized as "phone" - though the option exists in cog wheel, it says "no phone" when connected and phone audio does not come through on the headset. Think I saw a fix to bake in another bluetooth stack from a different ROM, may give this a whirl.

Another issue I think I saw a fix for was sounds being played on the phone's speakers when headphones are plugged in - definitely not good IMO.

Haven't paired with my car but seems like a lot of people are having issues with this. Unfortunately these are likely dealbreakers. Any notion when the bluetooth issues might be resolved in build? If I bake in another bluetooth stack, will I need to repeat every time I flash a new Lineage nightly? Any recommendation on a different ROM with better bluetooth capabilities OOB?
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] FunkyRasta:
Anyone else getting issues with sound playing through speakers when headphones are connected? That would be embarassing in public :P My Axon arrives today and I want to flash lineage on it ;)
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] bmckenna:
I think it's just Bluetooth and it plays volume adjustment and notification noises when over both Bluetooth and phone speaker when Bluetooth headset connected. Found a fix but haven't implemented to know if it works - https://xdaforums.com/lineage/general/kb-article-troubleshooting-bluetooth-t3646969

Phone connected to car ok but doesn't consistently play audio on first pairing, sometimes need to turn off head unit then turn back on to reconnect before it works. My beats x still won't do phone calls or hangouts video calling audio.
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] dageeknerd:
No LTE with vodafone in the Netherlands, will come back to this one when my contract is done and i'm switched to another provider..
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] shutdown_-h_now:
I do have LTE with this phone and Vodafone NL. Does your subscription include 4G? (On my private SIM i have an old subscription without 4G which limits the connection to 3G)

Verstuurd vanaf mijn ZTE A2017U met Tapatalk
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] dageeknerd:
Yes i have a 4G subscription.
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] shutdown_-h_now:
I have the SIM which I use for the data connection in te second slot and after a reboot of the phone this SIM only gets 3G . I then need to switch the data connection to the first sim and back to get 4G on the second SIM

Verstuurd vanaf mijn ZTE A2017U met Tapatalk
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] dageeknerd:
This works once in a while, back to stock... can't believe the bull**** with vodafone on android phones...
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] warBeard_actual:
Is anybody else experiencing call audio issues with the latest build?

Example: answer phone, person on the other end cannot hear me unless I switch to the speaker phone. Sometimes the device will ring for only a split second, then I get a voicemail. Not sure if it is actually ringing on their end or if it is kicking them straight to my voicemail.

Voicemail app will not play audio unless I switch to speaker.
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] olus:
i have the opposite. i cant hear people on the other end. speakerphone on/off and i can hear them. happens twice a month..