yashsingh1/xdaforums huggingface dataset:
[ZTE Axon 7 Guides, News, & Discussion] cfbruck:
I tried on both stock and LOS, clear difference on both so it seems to work with both. With the mod I actually preferred LOS.

The same developer also has another mod that is called Nero which is supposed to bypass a lot of stuff and send the audio signal directly to the dac. Sounds good in theory I think, but I couldn't tell any difference at all, not sure if it installed correctly. If anyone tries it gets it to work/notices any difference it would be interesting to hear.
[ZTE Axon 7 Guides, News, & Discussion] MaxRink:
Has any1 tried los vs stock with extremely high sensitivity iems?

I notice a rather high noise floor on stock, with both dacs

Gesendet von meinem ZTE A2017G mit Tapatalk
[ZTE Axon 7 Guides, News, & Discussion] eMadman:
Your post touches on some of my bluetooth audio "issues" on LOS. The volume curve is not even at the lower registers and on low impedence headphones, can easily get to the point of causing clipping and hearing damage at just 50% volume. There's a huge jump in volume from a volume of 3-4 over bluetooth that I can't seem to figure out how to manage.

You can see my research in my post in the Lineage thread here: https://xdaforums.com/showpost.php?p=71934393&postcount=2344

Do you have any thoughts on how i can modify LOS to account for this?

[MENTION=5335689]MaxRink[/MENTION] - LOS on stock with my low impedence IEMs (Shure SE 425) direct to the headphone port works great. The volume curve is well balanced with stock lineage OS, but you should be able to mess with audio_policy_volumes.xml to get the curve to your linking.
[ZTE Axon 7 Guides, News, & Discussion] MaxRink:
thats actually not my issue

my issue is, that i have a rather huge ammount of background noise which especially noticeable when listening to speech at lower volumes. iot might be an opamp issue tho
[ZTE Axon 7 Guides, News, & Discussion] senny22:
No hiss on any rom with my momentum in ears but they aren't really that sensitivity either.
[ZTE Axon 7 Guides, News, & Discussion] senny22:
I have noticed that the absolute Max volume on stock is the same volume as ~75% on LOS based Roms so I don't think that it all lies in the volume curve settings. I didn't push the volume above 75% on LOS because I didn't want to risk damaging my headphone although that's probably very unlikely.
[ZTE Axon 7 Guides, News, & Discussion] dyonoctis:
I think that I've read in the german forum that the super was indeed a switch for the ak4490, while the ak4691 is used for everything else. If you are using bluetooth, the phone will use the ak4691 (the super switch doesn't work on bluetooth) same for dolby.
[ZTE Axon 7 Guides, News, & Discussion] awsomjgp:
Same, tried on RR and noticed a huge difference. Made it sound louder and clearer.

Edit: At least on the speakers, haven't tried headphones.
[ZTE Axon 7 Guides, News, & Discussion] senny22:
Interesting. Do you know which of the DAC/amps are in use in AOSP ROMs?
[ZTE Axon 7 Guides, News, & Discussion] dyonoctis:
It seems that the jack output on los is using the ak4490 all the time, and the ak4691 for the other stuff. The snapdragon dac isn't utilised at all according to what they said on the german forum.

you can find this in Los mixer file:

<!-- Hi-Fi Audio -->

<ctl name="AKM HIFI Switch Sel" value="ak4961" />

<ctl name="AKM HIFI Switch Mute" value="off" />

<ctl name="AKM HIFI PW" value="off" />

<ctl name="AK4490 BICK Frequency Select" value="48fs" />

<ctl name="AK4490 Lch Digital Volume" value="0" />

<ctl name="AK4490 Rch Digital Volume" value="0" />

I just wish that zte could have more polished their software when it comes to audio. compared to the Lg V20 or even some android chinese DAP it feels so basic...
[ZTE Axon 7 Guides, News, & Discussion] senny22:
Do you know why the value on the last two lines is at 0 if it's that DAC that's in use?
[ZTE Axon 7 Guides, News, & Discussion] dyonoctis:
I honestly don't know why. But the stock file show the same lines with the same value.
[ZTE Axon 7 Guides, News, & Discussion] senny22:
Ahh ok thanks.
[ZTE Axon 7 Guides, News, & Discussion] cfbruck:
Tried some more - RR rom 7.1.2 with beast mode kernel and the Ainur Pandora gives me the best sound. (Better than nuclear I'd say).
[ZTE Axon 7 Guides, News, & Discussion] senny22:
Ok, will try that later then thanks.
[ZTE Axon 7 Guides, News, & Discussion] Luhccas-X10:
There's another ROM in town now!

AOSP stable! Anyone tried it?

Sent from my Axon 7!
[ZTE Axon 7 Guides, News, & Discussion] JP_93:
When I had an axon 7 I had issues with crackling/static noises when playing music through the speakers and bluetooth. I'm not sure if it was a hardware or software issue but I got 2 replacement devices and they both had the same issue. In the end I got a refund.

Apart from that the phone was perfect and I'm thinking about trying it again, if I use this mod do you think it could fix the sound?
[ZTE Axon 7 Guides, News, & Discussion] jw1985:
Why dont u just use Viper4Andriod? U cant get better sound. Its the best sound mod u can use.
[ZTE Axon 7 Guides, News, & Discussion] senny22:
Viper is only a tool to fix frequency responses and such. It does not increase the Fidelity or quality of the music per se.
[ZTE Axon 7 Guides, News, & Discussion] warBeard_actual:
Very interesting. All I can say is that it would appear your ears are quite off from what just about every real life test has proven.

The audio on this device is one of the best, if not the best, you will find.

As proven here.

https://youtu.be/dTsg7EyYKFM
[ZTE Axon 7 Guides, News, & Discussion] cfbruck:
Well, they mostly talk about the power output of the amplifier?

We have to be realistic here, compared to ordinary phones, this device has great audio.

When someone is critical it is probably because they are hoping that it can replace stand alone daps and dacs, like audioquest dragonfly and chord mojo and so on. Some phoned actually come close to doing that, like meizu pro 5 or lg v20. The axon 7 for me isn't quite in that category
[ZTE Axon 7 Guides, News, & Discussion] Gases:
Did you ever get to try it? I'm on RR 5.8.3 and I'm curious to see if there's any improvement on the sound with that mod.

That being said, I actually kind of like the bass boost you're hearing because I'm using a pair of Superlux HD668B headphones, which are pretty neutral but kind of weak on the bass department. I noticed that with RR, they get a boost on the sub-bass without it bleeding too much into the other frequencies. The highs also shine quite a bit, but they don't get sibilant or fatiguing like they did on my previous phone (Honor 5x).
[ZTE Axon 7 Guides, News, & Discussion] senny22:
I didn't find a difference with the Pandora mod but with his Nero mod I actually found the audio to sound better. You can't use viper or anything like that with Nero though.
[ZTE Axon 7 Guides, News, & Discussion] Gases:
Awesome, I'll give it a try. I don't really find Viper necessary with this phone, so it's not a problem for me.
[ZTE Axon 7 Guides, News, & Discussion] bhazard451:
This test happened before the 7.0 changes to Audio. Nougat stock does NOT have the same behavior or sound as Marshmallow stock, and I can prove it via ARTA and Vibro Veritas measurements.

So the Op is in fact very close. Super is actually worse on Nougat, where it is audibly the better option on Marshmallow. I actually don't like the changes and I hope they fix it. Claims that Super is now meant for higher ohm line out are false, as there is no official claim to that. It makes no sense, nor were there any measurements to truly show that.
[ZTE Axon 7 Guides, News, & Discussion] Gases:
I installed the Nero sound mod and I can't hear a huge difference... however, I didn't compare the sounds side by side. It still sounds amazing, and I feel like it's a little bit louder (I can leave the volume lower and still hear just as much detail).
[ZTE Axon 7 Guides, News, & Discussion] senny22:
Ok, the improvement I heard was tiny as well but I guess it doesn't hurt to use the mod.
[ZTE Axon 7 Guides, News, & Discussion] senny22:
What exactly are the differences between Marshmallow and Nougat?
[ZTE Axon 7 Guides, News, & Discussion] czarodziej:
How is the audio in Oreo Stock? I am planning to install A2017X_O_B04_SL!M8 with Ainur.
[ZTE Axon 7 Guides, News, & Discussion] Lightwolf25:
senny22! I need you, I pay you

After reading your post regarding the axon 7 a2017g audio quality through headphones, your the guy with sharp hearing I am looking for and need. I am willing you pay you either through any online transfers (BTC or Bank) in advance if you agree to help me out.

My story,

I once had a axon 7 a2017G bought off eBay second hand and that had the best amazing sound quality and I can't remember what software it was then I had to sell the phone due to loss in money income. Since then I have been searching for that phone but no luck finding it so I just thought all axon 7 a2017 models will have the same audio quality and went to purchase one off second, that one came bootloader unlocked and upon testing the audio quality through headphones it sounded unpleasant with much noise and just as you said increased treble or bass. I thought the owner of the phone had done something with the firmware as it shows sign on modified so I tried to flash a axon 7 stock and ended up bricking it, somehow managed to get it back on stock running then sold it. The first axon 7 I sold, I had photos of it for auction site so I looked at the back label sticker and it stated axon a2017G and that's the model I should be looking for so I purchased one off overseas to the UK a 2017G model and it arrived but updated to Oreo latest, the audio quality again was terrible so I flashed marshmallow Android 6 and went to update to follow ups going up to Oreo, I stopped at nougat as I don't like Oreo. Somehow I started to feel stressed from listening music on this device, music meant a lifefull meaning but now something is wrong and not there ( I am extreme audiophile). I then reverted back to marshmallow and audio quality was so good and I started to feel very happy since a long time. I then searched up why this happened and seen your post here about the truth.

Now the reason why the axon 7 a2017G my first phone had the best audio quality probably it was flashed with stock rom from xda via twrp hence it wasn't getting any updates for years.

Senny22 Please reply me if you are willing to help me out on some audio testing on phones and matching it according to one specific device (w880i). I will pay you. Thanks
[T-Mobile Samsung Galaxy S7 Questions & Answers] padawan_lp:
Hello,

I bought a T-Mobile Galaxy S7 on samsung.com and i haven't been able to SIM unlock it.

After many calls and chats, T-Mobile support told me this: "... because the device was purchased directly from the manufacturer our system doesn't recognize the device as being a T-Mobile device. Even though it is a T-Mobile model and has T-Mobile software, a T-Mobile device is considered to be one bought or sold by T-Mobile directly. We have a database of the IMEI's of the devices we carry and sell, and this lets us unlock eligible devices upon a customer's request."

Samsung support is useless.

I tried a 3rd party unlock service two weeks ago and I'm still waiting. They asked me to please be patient because the T-Mobile server has been down.

T-Mobile unlock app did more damage than good.

I'm also still trying to return the cellphone but Samsung hasn't sent any prepaid labels yet, I've called 3 times on 3 different weeks and they said they're about to send it. , that I should wait a couple of days.

So, in the mean time, is there any other option to unlock this thing? like a brute force unlock.

Thanks.
[T-Mobile Samsung Galaxy S7 Questions & Answers] Febby:
Let me know if you find an answer. I have an s6 edge that till date after it being active on T-Mobile for over 8 months (Samsung purchase phone - T-Mobile variant) the application from T-Mobile tells me the device is not eligible". Samsung care says they don't unlock that my carrier does lol
[T-Mobile Samsung Galaxy S7 Questions & Answers] padawan_lp:
Would it be possible to flash the MetroPCS ROM and use a SIM unlock service for MetroPCS? Or do the same with AT&T?
[T-Mobile Samsung Galaxy S7 Questions & Answers] malimal:
yeah everyone i have tried for unlocking says the service is down...more like the inside person they use is not available...have asked a couple of sites and ebay sellers...same thing...they must all use the same person or exploit.
[T-Mobile Samsung Galaxy S7 Questions & Answers] nktwister:
I was getting the runaround from Samsung to goto T-Mobile and vice versa.. luckily the T-Mobile tech support was helpful and agreed to be on conference with Samsung support and it was a battle with Samsung to get some responsible answer as they kept saying that they don't unlock phones. Then when we escalated to the manager, she repeated the same but at the end created a case to service the phone. Once it reached Samsung, they just said updated software and are sending back on same day.. Not sure if it got fixed, will let you know as soon as I get it..
[T-Mobile Samsung Galaxy S7 Questions & Answers] jazzdglass:
I doubt if updating software can actually sim unlock it. But who knows, perhaps Samsung has a magical software update. Let us know please. If it works we could dump the OS a d reflash other locked units with Odin maybe? Lol
[T-Mobile Samsung Galaxy S7 Questions & Answers] nktwister:
That was a bummer.. the stupid Samsung technical support just reflashed the same software and sent back the phone in a generic box (did not get original box back) .. the same problem still exists.. the device unlock app doesn't work and T-Mobile doesn't have the unlock code for this imei..
[T-Mobile Samsung Galaxy S7 Questions & Answers] Febby:
I got T-Mobile to fix mine.
[T-Mobile Samsung Galaxy S7 Questions & Answers] nktwister:
Can you please elaborate on what you asked and what was done by T-Mobile? Did you buy your phone from Samsung.com?
[T-Mobile Samsung Galaxy S7 Questions & Answers] Febby:
What you want to state to them is for them to request a ticket for your Imei to be white listed for the device unlock application. Let them know it is the T-Mobile variant of the phone bought directly from Samsung.com
[T-Mobile Samsung Galaxy S7 Questions & Answers] nktwister:
I did the same and the T-Mobile rep said that it did not work and they are getting the same error that imei cannot be whitelisted for the mobile device unlock application.. they are clear that it was T-Mobile phone from Samsung.com.. were you on g930t rom? Did you buy yours from Samsung.com or from someone else?
[T-Mobile Samsung Galaxy S7 Questions & Answers] Febby:
It was bought directly via samsung.com as a t-mobile variant with t-mobile firmware. That's odd unless if your model was modified at some point? Perhaps lazy t-mobile rep? What I was told is that after 5 days even if bought from Samsung as a t-mobile variant it will lock itself once a sim card is left in it
[T-Mobile Samsung Galaxy S7 Questions & Answers] nktwister:
Oh ok, the rep has not given up and she is still trying everyday for a solution.. my model was never modified, everything stock and used on T-Mobile for 1.5 months.. I wonder how you can be eligible for unlock if you've not used tmo sim for more than 5 days.. Maybe your rep involved some engineer to add the imei through backdoor process? Did you email them proof of purchase?
[T-Mobile Samsung Galaxy S7 Questions & Answers] Febby:
I've had T-Mobile service for around 2 years almost and I did use the T-Mobile s6 edge for almost 11 months.

I believe what the rep that helped me meant is that when you buy a T-Mobile variant phone from Samsung or any oem that you should run the Device unlock app asap otherwise once you leave a SIM card inserted for 5 days or more it will lock the device to that carrier that the sim belongs to.
[T-Mobile Samsung Galaxy S7 Questions & Answers] entropism:
I can clarify a bit on this, as I went through the same thing. Tech support even 3 way called Samsung with me, and they were arguing for over an hour until we got fed up.

Basically, the IMEI needs to be added to the T-Mobile database, but because it was never sold by them it errors out. I just got off the phone with Tech Support and sadly, their notes don't go back far enough to tell me exact process, but I was told that the Business Support department was the one that actually solved the issue for me (along with contacting their Samsung Rep). Maybe that will help you guys out, at least as a starting point.

Edit: T-Mobile support just confirmed. Speak to Business Support, they can fix it.
[T-Mobile Samsung Galaxy S7 Questions & Answers] nktwister:
Thanks for the replies.. I wasn't able to check last solution as my rep agreed to replace it with T-Mobile sold device.. so got an s7 edge which is cheaper now than s7
[T-Mobile Samsung Galaxy S7 Questions & Answers] chance21:
I registered in this forum just to say thanks to you. I wasted more than two weeks speaking to tech support. Their attitude was great but they did nothing effective. I read your post and spoke to business support, the unlock issue got resolved quickly over the weekend.

This really saves my ass because I am going overseas soon. T-mobile really need to have better communication between different departments.
[T-Mobile Samsung Galaxy S7 Questions & Answers] entropism:
A small update for anyone who ends up here via google:

T-Mobile is now aware of the issue, and if you contact them on Twitter (@tmobilehelp), their specialised customer service division, T-Force, can get you unlocked and out the door almost immediately. The process takes a few days, but they know the steps to take to get the ball rolling.
[T-Mobile Samsung Galaxy S7 Questions & Answers] padawan_lp:
Wow, I can't believe it took 3 months to solve this.

I don't know how much time I lost calling T-Mobile and Samsung. BTW, Samsung support is the worst ever.

Since I heard the about the unlock problem, I started trying to return my phone in parallel while trying to unlock it. Samsung people didn't want to provide prepaid shipping labels, first I never got them after I was told to wait a couple of days. I called many times and got the same response. Then the 30 days passed and they started saying it was to late to return, that I had to pay restocking fee. It took me another month explaining it was their fault the 30 days passed and that I needed prepaid shipping label and a full refund. I received the shipping labels the 2nd week on May and returned the phone. I still haven't received my refund. I called today, and the representative told me the refund was posted just today, and told me to wait 3 to 5 business days.

I'm happy some of you were able to unlock it. I got tired of waiting and talking with the support guys. And I don't even have a T-Mobile line. That's why I wanted to unlock it in the first place.
[T-Mobile Samsung Galaxy S7 Questions & Answers] simon_khan12:
The easiest way to unlock this is changing the IMEI number, i recently paid $80 to get it changed but it now shows up as unlocked & clean on the T-MOBILE network. Sorry i didn't read this post before maybe this information could have helped.
[Galaxy Note 8.0 (Tablet) Q&A, Help & Troubleshooti] naannook:
Has anybody tried any of the n5120 ROMs on the i467. I've already flashed all my i467's with the 4.4.2 ROM but getting Android 5+ would be nice.
[Galaxy Note 8.0 (Tablet) Q&A, Help & Troubleshooti] gsads:
I finally got my Note 8 sgh-i467m (TELUS) "working" with LineageOS 14.1 (Android 7.1.2). I used the n5120 rom from [MENTION=6171753]rgib[/MENTION] and all appeared to be working but then realised data (LTE or HSPA) does not. It looks like the n5120 (AT&T) supports different LTE bands than the sgh-i467m (TELUS).
[MENTION=6171753]rgib[/MENTION] -> How hard would it be to create a new rom that supported the TELUS LTE bands: 4/17/2/5 ?

Thanks!!

gsads
[Galaxy Note 8.0 (Tablet) Q&A, Help & Troubleshooti] gbean009:
I am looking to do this same thing, run CM13 for 51xx devices on my i467 (do not need LTE or HSPA - using as a straight tablet.)

I cannot even find if the i467 ever had an unlocked bootloader. So to that end I think I'll have to jump over to the 51xx series for ROM options.

Still trying to find out if this will cause any issues or even be possible.
[Galaxy Note 8.0 (Tablet) Q&A, Help & Troubleshooti] gsads:
I've been using it for a few days and it's not great. Keeps crashing and Bluetooth doesn't work... keeps disconnecting as soon as I try to play music. (I want to use it to play music in my car over Bluetooth).

I'll look in to options...
[ZTE Axon 7 Mini Questions & Answers] olliolli82:
It just bought it in the US... I want it to behave like a stock ROM European Axon 7 Mini.

I found out that the US model has limited language settings available.

Thank you!

Olli
[ZTE Axon 7 Mini Questions & Answers] onishchuk4:
I have the same exact question, not much info on the web. Anyone know if this is possible?
[ZTE Axon 7 Mini Questions & Answers] saymonek:
Do you have any firmware to flash (not update file)? I have ZTE Axon 7 mini from UK market and I can't update to european 7.1 android system. If I use system update function it cannot see any update, and same situation is with stock RECOVERY - after clicking "install zip from SD" and selecting file, phone restarts immidietly with regular 6.0 system.
[ZTE Axon 7 Mini Questions & Answers] djeniuss:
Yes, you can flash it with the European stock firmware if it is the same model no. My device is ZTE B2017G bought in the US. I accidentally selected US Band in the engineering menu and I lost network services because I don't use the device in the US. I searched all through the net, no luck until I decided to flash the European firmware and it worked perfectly. I updated the firmware to 7.1.1 from the Russian ZTE site and it is still working well.