yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy J3 (2017) Questions & Answers] Blackjesus135:
Thank you for trying Ill keep trying over and over but my j327U might just be another unrootble :crying: :crying: :crying: :crying: :crying:
[Samsung Galaxy J3 (2017) Questions & Answers] Blackjesus135:
All that happened after i flashed it is that it just booted up like its been factory reset
[Samsung Galaxy J3 (2017) Questions & Answers] Blackjesus135:
With no supersu iust normal apps
[Samsung Galaxy J3 (2017) Questions & Answers] Blackjesus135:
I also checked with root checker and it said that I did not have root so am I doing anything wrong and yes I have OED unlock enabled frp disabled and usb debugging enabeled I got past the verification thing now I just need the root to register helppppppp
[Samsung Galaxy J3 (2017) Questions & Answers] Blackjesus135:
I got it working after i followed ashlx advice and deleted my data then instead of getting my j327U from autoroot i looked up the old autoroot and used that website and found J327T autoroot installed that it worked perfectly now i have root thank you for all u guys help:):):)
[Samsung Galaxy J3 (2017) Questions & Answers] billa:
For those who are having "verification failed", boot-loop errors, or no root in the end, just follow ashyx'S 6 commandments carefully, it should work perfectly.

1. Boot to Twrp https://androidfilehost.com/?fid=673791459329063628

2. Format Data partition using FORMAT DATA button under Wipe options (not WIPE but FORMAT!)

(Note: This will wipe the internal storage)

3. Check DATA is mountable.

4. Install SuperSU (if root is required)

5. Install boot image patch https://androidfilehost.com/?fid=24591000424951049

6. Reboot
[Samsung Galaxy J3 (2017) Questions & Answers] Blackjesus135:
They made a TWRP for j327U awesome
[Samsung Galaxy J3 (2017) Questions & Answers] :
its unofficial rn goto ashlyx's thread and report any issues to her or tell her it is working perfectly if it is.

---------- Post added at 08:59 PM ---------- Previous post was at 08:55 PM ----------

quote from another thread by ashyx: "TWRP SM-J327u

https://xdaforums.com/galaxy-j3-2017/development/ecovery-root-twrp-3-1-1-1-samsung-t3709987"
[LG V30 Questions & Answers] sicerik 1980:
Hey guys, are there different modes in the Quad Dac? The v20 had Normal, External,and High Impedance depending on what you plugged in. I'm not getting any regardless what I plug in, auxiliary, or normal headphones. Any ideas?
[LG V30 Questions & Answers] lyall29:
Yes, there are different modes. Long press on the Hi-Fi Quad Dac icon in your quick settings. This will take you to all of the different modes.
[LG V30 Questions & Answers] CHH2:
I just got my audio files sorted and onto a card and into my phone. I'll take my Senn's into work tomorrow and have a listen. Also recorded some FLAC files tonight that I need to listen to. I'll be able to tell you tomorrow at some point. Up to this point, I've just been using my B&O's and some Apple ear buds that we just have laying around work. Neither of which trigger high impedance mode.
[LG V30 Questions & Answers] lyall29:
I think I misunderstood the OP's question, sorry about that.

I haven't noticed any changing of modes by plugging in different earbuds either.
[LG V30 Questions & Answers] sicerik 1980:
That's what I'm saying. With the v20 you plug in axillary cable and it changed to external. You were even able to fool it with an extension. My v30 doesn't have that option, but I've seen it in couple video reviews.
[LG V30 Questions & Answers] psawjack:
OP- do you mind posting a screenshot of what you are talking about. I had V20 and remember seeing high impedance mode when I plugged in my aux cable. Sound was 10x better when it was in that mode. So V30 doesn't have different modes anymore, just on and off? Thanks
[LG V30 Questions & Answers] CHH2:
Yeah, I'm not seeing anywhere where it shows normal vs high impedance modes but it is definitely switching. Had my B&O's in which are normal on my V20 then switched them out for my Sennheisers. The volume jumped and the sound improved. So there's switching going on even though it doesn't say it like it did on the V20.
[LG V30 Questions & Answers] NotATreoFan:
I believe this shows what the OP is talking about. The V20 would show Normal, High Impedance, External, something along those lines. The V30 does not appear to.
[LG V30 Questions & Answers] psawjack:
Thanks! So I wonder if the DAC is simply always on in one mode when it is turned on?
[LG V30 Questions & Answers] lyall29:
This is what my HiFi dac settings looks like when I plug in my car's aux cable.
[LG V30 Questions & Answers] psawjack:
"One of these things is not like the other..."
[LG V30 Questions & Answers] lyall29:
Is this what you guys are talking about?
[LG V30 Questions & Answers] psawjack:
That's what im talking about. It appears different between the phones. OP has it one way and you have it another.

Carrier related?
[LG V30 Questions & Answers] lyall29:
This is what happens when I plug in my AKG earbuds from Samsung.
[LG V30 Questions & Answers] psawjack:
Yep yours actively changes like my V20. OPs does not.
[LG V30 Questions & Answers] cazcryy:
It might be due to software version. When I first had the phone (shipped from Korea) mine showed this as well. After the first of two updates so far, it no longers shows normal/high impedance mode.
[LG V30 Questions & Answers] 9646gt:
I don't even know how to tell if the mode has changed. I plugged in an AUX cord and I think the only thing visually that changes is the settings screen says that the volume or something has been automatically adjusted if I use earbuds. No matter what, volume is limited to 75 it seems and is just shy of being loud enough for me while mowing and such :(

---------- Post added at 04:50 PM ---------- Previous post was at 04:48 PM ----------

Yeah same with mine with the same headphones.
[LG V30 Questions & Answers] sicerik 1980:
Carrier related maybe?

It seems not all v30s are having the same software. Maybe new software changes the mode automatically but doesn't show, why would it. It seems to switch depending on what you plug in, I can tell in the sound quality. It's just the peace of mind of it showing you to know it's actually working I guess.
[LG V30 Questions & Answers] psawjack:
I hear ya. With the V20 there was either normal HIFI DAC mode and Aux or high impedance mode and TBH the normal mode just wasn't loud enough. That's where I'm coming from, if we see the mode then we know that it's on its best,loudest setting.
[LG V30 Questions & Answers] sicerik 1980:
Idc if it shows it, as long as it's working. I was worried it wasn't and I was missing something. After all this was one of the main reasons I got this phone, the audio.
[LG V30 Questions & Answers] vibrantliker:
It was more effortless with the V 20 and the adapter trick. The V30 doesn't seem to want to play. I do not get the external device notification when I plug one in.

Without root and viper, it's not even worth listening to music anyway on this phone. Still using my V20 (rooted with viper) as my music source.
[LG V30 Questions & Answers] ra990:
Yea it seems that way, the V20 might have handled the mode switching differently. I think the V30 sounds pretty great and I usually listen to a Woo Audio WA8 most of the day. Just a pain to have to use tricks to get decent volume to my headphones when that's exactly what I bought the phone for.
[LG V30 Questions & Answers] NotATreoFan:
Didn't work for me either. The V30 is smarter than we thought.

After plugging in the 75ohm + external adapter, I get the HiFi icon. After unplugging just the ohm adapter, the HiFi icon goes away for a fraction of a second and then comes back. So the phone knows we're trying to trick it. I also wound up with lower volume using this method.
[LG V30 Questions & Answers] ra990:
OK, I guess that confirms it. V30 works differently from the V20. Thanks for trying!
[LG V30 Questions & Answers] psawjack:
I'm still waiting for the Danu to arrive. They definitely take their time with shipping.

I'm the meantime I've been using my HP amp to power the HPs.
[LG V30 Questions & Answers] ra990:
Plenty of discussion about the DAC/AMP output topic over on the head-fi forums: https://www.head-fi.org/threads/lg-v30.858933/page-116
[LG V30 Questions & Answers] psawjack:
Thanks for that! I went and took a look.

Good news for TMO V30 owners! There is now an app that tells the user what DAC mode that the phone is in. I've tested the app and it appears to work perfectly.

https://play.google.com/store/apps/details?id=com.apptrio.hi_fi_status

If this is old then sorry. I'm just glad that it exists.
[LG V30 Questions & Answers] astikv:
Woow works great! you must first insert the adapter then the headphones the volume is clearly more powerful! thank you guys

edit. impossible to listen to music with maximum volume ie 75.
[LG V30 Questions & Answers] vibrantliker:
Why won't my V30 do the adapter trick like the V20 did?
[LG V30 Questions & Answers] astikv:
V30 euro?
[LG V30 Questions & Answers] psawjack:
Adapter trick triggers auxiliary mode. I say best mode is high impedance mode.
[LG V30 Questions & Answers] ChazzMatt:
Exactly. People keep getting the two confused.

Sent from my carrier unlocked LG V30 US998
[LG V30 Questions & Answers] vibrantliker:
US 998
[LG V30 Questions & Answers] astikv:
if he did as I described then it is the problem of the LG US version

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[LG V30 Questions & Answers] vibrantliker:
You can't trigger high impedance mode without root though, right? (unless of course you have high impedance headphones).
[LG V30 Questions & Answers] astikv:
This is my adapter. 3.5-way female entry. 3.5-4 pole 3.5 male output 4 pole. download the LG hi-fi status application. from PlayStore then. 1 insert the adapter, activate wi-fi. 2 insert the headphone jack into the adapter should the aux icon appear on the left.

https://dl.xda-developers.com/4/3/6....jpg?key=tztBy0R8uxutdvztQ5JWRw&ts=1513457599
[LG V30 Questions & Answers] astikv:
This is my adapter. 3.5-way female entry. 3.5-4 pole 3.5 male output 4 pole. download the LG hi-fi status application. from PlayStore then. 1 insert the adapter, activate wi-fi. 2 insert the headphone jack into the adapter should the aux icon appear on the left.

https://dl.xda-developers.com/4/3/6....jpg?key=tztBy0R8uxutdvztQ5JWRw&ts=1513457599

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[LG V30 Questions & Answers] ChazzMatt:
Or 75 ohm connector attached to your headphones. Just make sure they can handle it.

There's several posts and links to the 75 ohm connectors in this thread.

https://xdaforums.com/showthread.php?p=74832768

Sent from my carrier unlocked LG V30 US998
[LG V30 Questions & Answers] astikv:
I did not understand what the meaning of your speech !!

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[LG V30 Questions & Answers] ChazzMatt:
Well, read the link. It will explain more? Also there were other posts prior and after.

Sent from my carrier unlocked LG V30 US998
[LG V30 Questions & Answers] astikv:
I do not care I already have what I need.

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[LG V30 Questions & Answers] ChazzMatt:
You are saying you don't understand how to trigger high impedance mode and now you don't care?

Sent from my carrier unlocked LG V30 US998

That doesn't trigger high impedance mode.

Sent from my carrier unlocked LG V30 US998
[LG V30 Questions & Answers] astikv:
not me * vibrantliker. hahaha maybe there was a bit of confusion

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[LG V30 Questions & Answers] ChazzMatt:
No, he clearly replied to me. Maybe you should read that post too. You're confusing external connector trick with high impedance mode. You still haven't triggered high impedance mode. You still haven't heard the best of the quad DAC.

This is what he was replying to:

Sent from my carrier unlocked LG V30 US998
[LG V30 Questions & Answers] astikv:
friend I do not know if I'm confusing but I only know that doing as I mentioned before, now I have a crazy volume! ie at maximum volume 75 and impossible to hold it, and the sound is nice clean and full bodied without distortion!
[LG V30 Questions & Answers] ChazzMatt:
You still haven't heard the best.

You've only heard "better".

Please stop arguing and re-read the thread until you educate yourself.

Sent from my carrier unlocked LG V30 US998
[LG V30 Questions & Answers] astikv:
let me see...

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[LG V30 Questions & Answers] ChazzMatt:
Read entire post, especially towards the bottom

https://xdaforums.com/showthread.php?p=74700412

Sent from my carrier unlocked LG V30 US998
[LG V30 Questions & Answers] sprytedesign:
[MENTION=3250376]ChazzMatt[/MENTION]

How are your 1More Triple drivers (32 Ohms) in comparison to the different methods? Would you be able to clarify the sound quality or differences?

1) directly plugged into phone

2) aux mode method

3) 75Ohms adapter

And same processes with 16 Ohms rated IEMs.

Essentially, I think it would help others understand what to expect and give some real expectations to make a decision on what they want out of the sound from their V30 besides volume alone.

My 75 Ohms adapter should arrive sometime next year from China.

I have four sets of IEM now and have been testing them directly plugged into the V30.

1) Skullkandy Ink'd 2

2) KZ ATE

3) KEF M100

4) HiFiMan RE400a (32 Ohms)

It is already surprising what differences in sound you can get out of each one alone with DAC enabled and DAC off. I'll reserve info until further testing.
[LG V30 Questions & Answers] GhostofRonin:
I have question this trick work only headphones or too amplituner HiFi stereo with 2 big speaker, connected by RCA Jack ( show connect aux )
[LG V30 Questions & Answers] astikv:
What do you think of these?

https://www.panasonic.com/uk/consumer/home-entertainment/headphones/in-ear-and-clip/rp-hde10e.html

then I never understood what it means + _5? sensitivity: 120 ± 5dB

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[LG V30 Questions & Answers] kongming:
It show up on my previous G6 but not my currect V30+.
[LG V30 Questions & Answers] bilbo60:
I'm not sure if the confusion is because the DAC works differently with different version of the V30 or not.

I've got the carrier version from Verizon.

to access: Settings>Sound>Hi-Fi Quad DAC

With nothing plugged in to the phone I can't even access the menu.

Plug in an 3.5 extension cable only, and at the top of the Hi-Fi Quad DAC page it reads "An external audio device is connected." Same if connecting my Bose SoundLink Mini external speaker or just the 75 Ohm adapter by itself.

Unplug the cable and the whole menu disappears.

Plug in my Sound Magic E10's (46 Ohms) or 1More Triple Drivers (32 Ohms), and at the top of the Hi-Fi Quad DAC page it reads "Normal audio device."

Plug in my Sound Magic E80's (64 Ohms), or my Sennheiser HD 598's (50 Ohms) and at the top of the Hi-Fi Quad DAC page it reads "High impedance device."

Also, adding the 75 Ohm adapter to any of my low impedance (under 50 Ohms) In-Ear-Headphones also triggers the Hi-impedance device. First plug headphones into adapter then adapter to phone.

There really is no trick. If the impedance is over about 50 Ohms the phone will go to Hi-impedance device . I say "about" because if I combine my 20 Ohm adapter with my 32 Ohm 1More triple drivers (total 52 Ohms) it doesn't go into "Hi impedance device", while it does work with the 46 Ohm SoundMagic 10's (total 64 Ohms).

Once in the Hi-Fi Quad DAC menu, you can turn it on or off, or use the other settings. It doesn't matter what's connected.
[LG V30 Questions & Answers] NotATreoFan:
Using the app mentioned above, I tested all the combinations I've done before, and I can trigger High Impedance mode with any headphones that are connected with the 75ohm adapter. And using the adapter trick, I can trigger external device mode.
[LG V30 Questions & Answers] bilbo60:
I don't understand the point of that. What are the advantages to external audio device connected.
[LG V30 Questions & Answers] ChazzMatt:
And those are two completely separate modes. :p

I know you know this, of course, but some others in this thread still don't quite understand...

Those are two completely separate modes -- even though the 75 ohm connected is technically an "external device". If it was a no-impedance connector, it would only trigger "external device mode" which boosts audio (better).

But the 75 ohm impedance connector triggers the "high impedance mode" (best). And you don't need to connect it in 2 steps. You just plug it in with your headphones.

For those who want to order 75 ohm connector see links below:

__________

https://www.ebay.com/itm/3-5mm-Impe...hash=item3f6e007e1f:m:msl3vGtZnwXprEITP58EDow

This one, while more expensive fits better on some cases due to the narrow base.

https://www.ebay.com/itm/DUNU-3-5mm...hash=item238e03bfa6:m:mY7LLoApGhvxne-71cclIpA
[LG V30 Questions & Answers] Mr CATFISH:
How did it sound in comparison to the "external" connection? I have been doing this with my Sony XBA-H1's.
[LG V30 Questions & Answers] ra990:
If you are getting sufficient volume with the external device trick, there is NO reason to use the high impedance adapter, in fact it is probably never a good idea to use that unless all you want to do is see the words "high impedance device connected" on your phone. You are changing the characteristics of your headphone by adding impedance to them unnecessarily. You always want to run your headphones with their designed impedance. Read through the head-fi thread on the V30...those guys live and breathe dac/amp/headphones and are experts in understanding what it takes to get maximum sound quality out of these things. That thread has fewer misconceptions about the topic than this one. The impedance adapter was a good idea on the V20 because you could trigger that mode then remove the adapter from between your headphones and the phone. It was just a trick to trigger the high impedance mode then remove the adapter from the equation. With the V30, that doesn't work, and listening with added impedance is not giving you better quality than simply the external device mode would. Ultimately what sounds good to you will be very subjective, but in general the above will hold true for most.
[LG V30 Questions & Answers] astikv:
I agree with you.

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[LG V30 Questions & Answers] ChazzMatt:
But others do not. Others in this thread with more audiophile experience than me say comparing the two modes, that High Impedance Mode sounds best on the exact same equipment than just boosting audio via the 2-step external adapter trick.

IF that is true and you do not like it, then blame LG for how they possibly set up the quad DAC to work in the LG 30?

See you were more on point here it seems:

The only problem is you can NOT go into high impedance mode and then remove something and still stay in high impedance mode. You were stating a procedure for the LG V20. This is not the LG V20 and how the LG V20 was configured does not necessarily apply to the LG V30.

A 75-ohm impedance connector or built in impedance (50+ ohms) in headphones triggers high impedance mode. Whereas a "no-impedance" connector plugged in via a 2-step process (connector first, then the headphones) triggers only higher audio in the LG V30. Which is good, but not the full spectrum of audio from the quad DAC like high impedance mode does, apparently?

(And why 75 ohm connector? Because we can't find 50 ohm connectors. All we can find are 20 ohm and then next highest is 75 ohm. But a 32 ohm headphones + 20 ohm connector -- 52 ohms total -- still does NOT trigger High Impedance Mode. But 75 ohm connector does. A 50 ohm connector would, if they exist.)

I'm going by what others in this thread have tested and vouched for, and trying to clear up any confusion. To them, high impedance mode with good headphones (obviously not Dollar Store quality) sounds better than just boosting audio via external adapter trick.

Why? Maybe LG has set up the quad DAC to only unleash the full potential with high impedance headphones. Again, this is not the LG V20.

Now if you already have high quality headphones but not quite enough built in impedance to trigger high impedance mode, then adding an impedance connector to the chain turns on that mode.

See, several times you actually are saying the same things the other people are saying, but then you change your mind and say only the "external adapter" trick is needed, to just boost audio...

Until the people who seem to be audiophiles who have actually tried both methods on the LG V30 say differently, then I tend to believe them.

When you get your impedance connector, and try it yourself, then please update with your experience? You may be right, but currently your experience is only with LG V20 and you have not used an impedance connector with your LG V30.
[LG V30 Questions & Answers] bilbo60:
I am no expert, just trying to describe what I've experienced and learn more. I never claimed one of the three modes is better than any other. I've never read an explanation, from LG, as to what is different with each of the 3 "modes". Is it simply just more amplification? If that's the case, I would think increasing the impedance (with an adapter) would simply raise the output, and you would be basically at the same point. Can't see how it would harm the headphones in any way.I can get plenty of volume with any of the "modes". To my ears when I combine an impedance adapter with low impedance headphones the sound is different not just the volume. Maybe I'm just fooling myself.

I have read the other thread you mentioned and not everyone is in agreement there. I have an external DAC and it doesn't care what the impedance of the headphones are.

Thanks for your input and adding to the discussion.
[LG V30 Questions & Answers] ra990:
Absolutely, it does, but you're ignoring the other effects of adding the impedance connector. It will color the sound in one way or another. Maybe you prefer that on your headphones, but just know that you're modifying the source audio signal and so your headphones are going to sound different than they would if we could get the phone into high impedance mode and listen without the impedance adapter, like you could with the V20. That's all I'm trying to say. The change in sound and if you like it or not is entirely subjective.

I did purchase one, but that's when I thought the same trick as the V20 would work and I'd be able to remove that adapter after tricking the phone into that mode. I have some very high end headphones that I usually use with an equally high end dac/amp. I'm not planning on using them on the V30 with the impedance adapter connected. That's a bad idea if you're trying to keep your audio as close to source as possible. The change in sound that you and others claim to hear with the impedance adapter is not because of the "quad dac being unleashed," it's because you're modifying the signal with that impedance adapter. The impedance adapter in your chain will give you more volume, but it might also increase distortion and noise in the signal and could affect the frequency response of the headphones. Any audiophile will tell you that's the exact opposite of what they're hoping to achieve, which is normally the purist signal path from source to destination, with the least amount of coloration, noise, and distortion as possible. I will try it out though and report back for the sake of the discussion. You are right that I'm not basing any of this on my personal experience with the V30 and impedance adapter, still waiting for it to arrive.