yashsingh1/xdaforums huggingface dataset:
[Android Head-Units] Thodai:
Hi Guys,

My head unit: DE-JY-VL130N2

The original amplifier chip used there: TDA 7388

New Chip i bought: two peace of Pioneer PA2030A

My car: VW Golf MK5

I tried two days ago to solder the Pioneer PA2030A in my Joying JY-VL130N2 (which was in my opinion successfuly, cause I've been soldering since my childhood). Radio installed in the car: No sound

I guess I bought plagiarism of the Pioneer chip, because with both bought chips there is no sound.

... or is the chip not compatible with my radio?

I would now just like to know what I did wrong! Can someone answer me that?

In the end I soldered the TDA 7388 back again and there is sound again now.

Best regards,

Thomas
[Android Head-Units] bogdi1988:
Check pinout for TDA7388 to see if it's the same. If it's the same, it should work.
[Android Head-Units] Thodai:
How could i do this?
[Android Head-Units] bogdi1988:
Pinout for TDA7388 http://www.st.com/content/ccc/resou...df/jcr:content/translations/en.CD00179160.pdf

Pinout for TDA7850 (same as Pioneer pinout)

http://www.st.com/content/ccc/resou...df/jcr:content/translations/en.CD00145702.pdf

Compare the pinouts for the 25 pin packages and see if it's the same. If there are differences, then they are incompatible.

From what I see, they are exactly the same. So 2 options:

1. bad pioneer chips

2. bad soldering
[Android Head-Units] Thodai:
I will check this out!

Edit:

What´s the meaning of "TAB" (Pin1), "HSD" and "NC" (Pin25)?
[Android Head-Units] Batamtk5:
Hello, im new on this site,i hawe on my head unit tda7388 chip with poor sound quality,can i replace it with stpa003 chip? Just plug and play???
[Android Head-Units] Marcelo crovador:
Zeepin DY7098 unit. based on Sofia 3230RK

Hi, how are you? I have a Zeepin DY7098 unit. based on Sofia 3230RK mtcd, I can change the audio chip of this unit too, the capacitors resist. will you follow your tutorial that will work?

---------- Post added at 22:11 ---------- Previous post was at 22:04 ----------

Hey, how are you? I have a Zeepin DY7098 drive. Based on Sofia 3230RK mtcd, I can also change the audio chip of this unit, the capacitors resist. Can I do your tutorial that will work?
[Android Head-Units] bogdi1988:
Check pinout of your current audio chip. If it's the same, then yes you can
[Android Head-Units] Marcelo crovador:
OK thank you
[Android Head-Units] doraimontv:
Hi. I have a jy-vm131n2 with very poor audio quality.

Use amplifier system.

Does the PA2030A or the TDA7850 affect audio by low pass or only by high pass?

Thank you!
[Android Head-Units] zinom100:
Hello all

I installed PA2030A in my Joying JY-UMS03N

everything works fine

the sound has clearly gained in sound

if someone is interested in the module I bought here
[Android Head-Units] doraimontv:
Hi. in amplifier is also better? where have you bought the module? Thank you!
[Android Head-Units] PsychoMcSatan:
Are you asking whether the PA2030/TDA7850 affects the line outs that would go to your external amp? If so, I can confirm that they do not. I did a bad soldering job when I tried upgrading so I just removed the amp chip completely and now use the line outs to go to an external amp.
[Android Head-Units] zinom100:
Hello

in my case the sound has become much better also at the exit

I have an external tube amplifier connected

I can not issue a link to the module because I am a new user
[Android Head-Units] doraimontv:
MP!
[Android Head-Units] Redbullssg:
I have seen a lot of issues memebers are having removing the chip. There is a much simpler way that what most have been doing. There is a product called desoldering ribbon... It is a copper ribbon, a bunch of fine copper wire bradded into a ribbon.... You basically heat the solder with your iron, as it melts you stick the end of this braid ribbon in the solder and it sucks it up... All of it. I had to desolder components in circuit boards, some having over 100 pins.... It made the job easy. No bending the old one and damaging the board... I used to get it at Radio Shack, but can be bought on Amazon as well... Key word "desoldering braid". Or "desoldering wick"

It will make your life much easier.
[Android Head-Units] bogdi1988:
That's what I used and it was still a pain!
[Android Head-Units] Redbullssg:
I have used it for years.. Works very well. Perhaps you weren't using it correctly, or the type you used was not a good quality. I have always used the brand from radio shack, have not used any other.
[Android Head-Units] skezza:
I use desoldering wick. It's better than a pump but it's not perfect, but yeah, for a job like this a desoldering braid/wick/ribbon is a much better choice.

Just glide it over the solder and don't pull. If you have to pull, then you're not using it properly and you will damage the board.
[Android Head-Units] lotte67890:
Sound Quality

I´m not sure whether this is the correct thread, but I want to improve the sound quality of my JY-UMS01N2D. As far I read there are several options, using this ROM with Viper, exchange the internal soundchip which should be a TDA7388 to a TDA 7850(1) or a Pioneer PA2030A or use an external amplifier.

I was thinking about an external Amplifier with DSP and also use an external USB Soundcard. I tested an external USB creative Soundblaster card which works even so I´m not able to change the Volume, does the xsofia tweaker solve this?

Is an an external USB DA required or is there no difference using the internal pre-amp outs?

Has anyone experience using an high-end DA like: Audioquest Dragonfly or Cyrus Soundkey? Will they work?

Thanks

L
[Android Head-Units] 96carboard:
Well, this thread sure looks like a lot of fun.

A few points I'd like to address;

1) While the actual audio performance may not improve more than marginally in the typical case, there is one situation where this part change can be extremely helpful and actually result in a measurable improvement in sound quality; if the vehicle it is being used in has 2 ohm speakers. Simply put, the TDA7388 does not support 2 ohm loads, so if you run a 2 ohm load on it, its performance is going to suffer. I wonder if the people who notice a significant improvement in sound quality may have 2 ohm speakers? Many cars are now equipped with 2 ohm speakers from the factory.

2) In removing the old amplifier, there are two approaches that I'd recomment;

a: heat gun, but be careful that you don't burn the board.

b: cut the legs off the old chip and desolder them individually.

Multi-layer boards, or if they didn't add thermals to the ground pins, will dispurse a lot of heat from the soldering iron, making it extremely difficult to get the pins hot enough to melt the solder. In the worst cases, I sometimes even have difficulty with a 220 watt iron.

3) In sourcing your parts, I would very strongly suggest that you stick with mainstream component distributors. Places like Mouser or Arrow. The reason the parts cost $2 on ebay (with free international shipping!!!!!) and $10 from the mainstream vendors should be obvious, but if it isn't, let me spell it out: The $2 ebay chips are one of the following; (a) fake, (b) [trash-]binned, (c) (and this is only if you're extremely lucky) stolen. Don't waste your time or money on ebay chips.
[Android Head-Units] packyman:
hello. are there better chips then TDA7851 known to replace?
[Android Head-Units] 96carboard:
STPA003 works down to 6 volts, and is a little bit more powerful.
[Android Head-Units] Major Stuen:
I have the TDA7388 chip in my unit. There is no voltage comming out from the RR RCA plug. Has the amp chip anything to do with the sound out of the rca plugs? Or does the rca plugs connect directly to the main green pcb board in the middle? So i probably need to buy a new unit..:(
[Android Head-Units] lotte67890:
Maybe you have to switch on external amp in the 4th tab of the car setting menu. Password is 3368
[Android Head-Units] PsychoMcSatan:
Do you have sound from the TDA7388, including RR? I believe the line outs at the RCA outputs are the same as the inputs of the AMP Chip.
[Android Head-Units] Major Stuen:
The sound is working normal using the amp chip.

But i want to use the RCA plugs, but the RR one is completely dead. So i run a 3 channel setup now.

I stumbeled upon this thread.

https://xdaforums.com/android-auto/...nt/mod-simpledsp-installation-mtcd-e-t3823075

And it look like everything goes from the sound processor chip (BD37033FV in my case).

Pin 1-14 is inputs, for bluetooth sound, radio sound, sound from android itself and aux in sound. Then it goes out from it directly to the RCA plugs on the back.
[Android Head-Units] shida:
Hello,

Very nice mod! it is appliable at px5 fyt joying?
[Android Head-Units] bogdi1988:
If the pinout of their amp chip is the same, it applies for any head unit.
[Android Head-Units] shida:
Thank you, going to check right away today, i was wonder if in term of perfomances there is better chip then pioneer PA2030A?
[Android Head-Units] Hacker_XXI:
Hello everybody, I was thinking update my radio of my car, is a Toyota Avensis T25, year 2004. The radio I was thinking buy is suitable for the car and it's the image bellow. Brings TDA7851 MOSFET and for Antena conctroller is NXP6686 (I think the Manufacturer is (Chinese) Philps).

The Sound of radio is good or bad? [MENTION=442915]bogdi1988[/MENTION], your output sound is horrible with TDA?

I'm strict with Audio, so, I don't know what I will buy.

Thanks a lot.
[Samsung Galaxy S7 Edge Accessories] EternalSeekerX:
Hey XDA,

In the hype of the s8/s8+ I figured I would wait on the note 8 so I need to do some house keeping on the phone. Currently I have a spigen slim armor with a otterbox alpha glass. Unfortunately it had a hairline crack now which happens because I tapped on the corner which has been making tapping noise. So from a bunch of reviews I ordered a gpel gen 2 protector. Now I am affraid my slim armor might not work. So which case would go well with this tgsp?
[Samsung Galaxy S7 Edge Accessories] GoMoeJoe:
SUPCASE Unicorn Beetle Series
[Samsung Galaxy S7 Edge Accessories] ShrekOpher:
Supcase in general are the best for the curved edge displays
[Samsung Galaxy S7 Edge Accessories] Steeltippin:
Same thing happened with my glass protector my slim armor case wouldn't allow it to sit flush against the screen which cause it to chip and crack while in pocket with a set of keys
[Samsung Galaxy S7 Edge Accessories] ShrekOpher:
Get a Skinomi "case friendly" screen protector and a Supcase and you'll be good to go.
[Samsung Galaxy S7 Edge Accessories] Anik49:
You can use the clearview case, it will give you some extra features but use it with a screen protector, so no chance of any scratch on the screen.
[Samsung Galaxy S7 Edge Accessories] EternalSeekerX:
I thought only the one with the belt clips work and if that is the case (pun intended) I don't really dig that look. Looking for something that also protects from drops! Idk if the wallet cases from otterbox or spigen would work with it? Also the supcase unicorn pro beatle case with the clip on will take ages to get here so idk if I wanna order that.

Yeah exactly, there was a chip on the edge of the screen and i didn't see it, when i tapped it it cracked....

I already ordered the gpel and its already en route..

Hmm yeah that works too, but ideally something drop protected!! I already shattered my phone screen once!
[Samsung Galaxy S7 Edge Accessories] EternalSeekerX:
UPDATE!!

the gpel one is here, ill install tonight maybe but im kinda holding out a bit because Idk if i wanna leave the back nakid :P
[Android Q&A, Help & Troubleshooting] shytypes1028:
I beg for help please I use an itel s31 phone and its now in continuous bootloop please I need help I have no recovery mode coz I tried flashing twrp.img custom rom using adb flashboot on my computer it showed up as is meant to i.e if it were to be successful but when I tried rebooting the phone it fell into bootloop I have tried cwm.img recovery flashed it on my flashboot still didn't fix it I even went on to flash philz touch custom recovery . img file still no solution one important detail is this itel s31 is not amongst the list of compactible devices on twrp and cwmd websites and also there are no stock roms of the phone online anywhere not even on the itel official website so am really really screwd please help I have been going through several sites checking for solutions but still no use 15hrs I have been trying for 15hrs now still not a climps of the solution the phone is mediateck and its 6.0 android os itel s31 please developers out there help me please I beg make me a recovery mod .img file I could flash with flashboot that would work please am tired of searching and to have thought that my curiosity could put me in trouble itel is a really dead brand of phone I couldn't even root it plz am tired of the bootloop :crying::crying::crying::crying::crying::crying:
[8125, K-JAM, P4300, MDA Vario Software Upgrading] technosonic:
Hi.

Cingular 8125 Wm5

Rom Version 2.25.11.1

Radio Version 02.25.11

Extrom Version 2.25.11.102

Thanks
[8125, K-JAM, P4300, MDA Vario Software Upgrading] technosonic:
???????????? help me
[Droid Turbo 2 Q&A, Help & Troubleshooting] Alimataei:
i heard the battery get totally broken after one year of using the original 25W charger , what is ur experiences ? does ur phone over heat too when charging does it get to 50-60 C degrees?
[Droid Turbo 2 Q&A, Help & Troubleshooting] mjones73:
I've been charging mine with the turbo charger since day one, it's been fine. There is technology built in to monitor the battery temps and ramp down the charge speed as the battery gets full. I've had my phone for 16 months now.
[Droid Turbo 2 Q&A, Help & Troubleshooting] NtwoO:
Max temp I get is 42-44c
[Droid Turbo 2 Q&A, Help & Troubleshooting] Pouic:
same here : 15 months with my MXF the 25w turbo2 charger.

Battery never go over 45° in charge, battery life still as good as the first day
[Droid Turbo 2 Q&A, Help & Troubleshooting] NtwoO:
In my car I have the Moto 25w charger. With navigation and other apps running the temperature rises to about 46 degrees. At this point the charge rate drops. Only if my telephone is at the cool air and out of its cover does the charging rate remain at the full turbo charge rate
[Droid Turbo 2 Q&A, Help & Troubleshooting] madscientist_42:
Not so much that the battery fails. The connector (which is kind of crucial for QC 2.0/3.0) or the charge controller craps out. Battery's fine. Was fine when I did my swap out for charge failure. It's not the battery, which people incorrectly presume is the problem- the charge system is a feedback loop process running in the background while the OS is running. When you're dead, down, no charge in the battery, the device only draws USB 2.0 power levels, 500mA, until the OS can come up enough to manage the charging. Part of the reason they do this is because you're using a USB connection to charge with and unless you've got the 1.5 A USB charge slot or an AC charger with the ability to source up to 2.4 A of juice, trying to pull that much current will wipe your USB port on a PC/Laptop/etc OUT. This is just with traditional charging. Turbo/QuickCharge charging is about raising the voltages over the USB 2.0 lines on a cable to up to 12v as opposed to 5, to allow you to jam a bit more current through the lines and to the device, effectively doubling the power being fed to the charge system. Problem with that is that you REALLY need the OS up and running to manage that. It requires info from the Charge Controller chip that is handshook from the charger.

If your charge controller is damaged, or if the cable doesn't have clean data and power lines, it just simply WON'T WORK. It will just USB mode charge until you fix the "problem"- either of which requires Lenovo to re-work the board...if it's even possible to fix. USB charging takes forever with this class of device- because the battery is a huge tank of juice compared to the devices of old. So it "looks" like the battery got "broke".

Having said this, there's about 20-40% of the units out there, depending on the crowd you listen to, that have a defective charge controller system and the phone flat-out won't ever go into any mode other than USB.
[ZTE Axon 7 Questions & Answers] slainer68:
I've got a new Axon 7 A2017G on 7.1.1 and completely lost on how to go to unlocked+TWRP+Lineage OS.

There is a rather complicated guide here (https://xdaforums.com/axon-7/how-to/guide-install-twrp-unlock-bl-flash-t3517379) but this one says that it only works from Marshmallow... So what should I do exactly? Downgrade (how to downgrade, the guide does not explain?) and use this guide? Do something else? Do something less complicated?

Thanks for your answers.
[ZTE Axon 7 Questions & Answers] senny22:
i believe you can unlock the bootloader and install twrp on nougat using the Axon7toolkit; https://xdaforums.com/axon-7/development/tool-axon7toolkit-t3573108. i am not sure how to go at it though.
[ZTE Axon 7 Questions & Answers] marcus.linkenbach:
You cannot unlock your nougat axon as it has since then no access to bootloader anymore.

You can try here:

https://xdaforums.com/axon-7/how-to/guide-reinstall-twrp-root-update-to-t3578552

sent from zte axon 7 with tapatalk
[ZTE Axon 7 Questions & Answers] chironfr:
I had to downgrade in order to proceed.

Copy the MM file to your phone and choose it through the update manager.
[Moto G Q&A, Help & Troubleshooting] isinotis:
My Moto g is stuck at bootloader with the message "WARNING BOOTLOADER UNLOCKED" after I installed netcut app by arcai.com. The phone powered off it self and since then I am going through this problem.

I have tried recovery mode swiping data and cache but the phone is still stuck at the bootloader. How can i resolve this problem?
[Moto G Q&A, Help & Troubleshooting] manohar3787:
you can try the factory restore option
[Moto G Q&A, Help & Troubleshooting] .:Dark:.:
You could try flashing the stock rom and see if that solves the problem.
[Xposed General] CocoType:
I'm doing a coursework, and need to use Xposed in it, but most recently began to learn Xposed modules development, so had a question: is it possible to hook with Xposed any app to bind him with service, or android framework's functions calls (intents creating, for example)?
[Nexus 5X Q&A, Help & Troubleshooting] Cozzmy13:
Are there any developers interested in adding(porting) msm8992/msm8994 support to the msm-4.4 kernel used by Qualcomm in sdm660/msm8998? I'm looking for some help in doing this, since it's not a one-man-job for sure.

I don't have a Nexus 5x but I have a Xiaomi Mi4c, which has msm8992 too.

Qualcomm's 4.4 sources are here if anyone wants to have a look. sdm660 tags are for SD660 and msm8998 tags for SD835.

Any help is appreciated.
[Nexus 5X Q&A, Help & Troubleshooting] EvilHowl:
Is 4.4 being used in new Snapdragon devices really? That's very good.

I haven't ever ported any kernel but I can test your kernel in my 5X if you want.
[Nexus 5X Q&A, Help & Troubleshooting] Cozzmy13:
Yes, it will be used in the upcoming SoCs.

Well, I just cloned the kernel and I'm looking at the correct place for adding clk stuff. Will take some time.
[Nexus 5X Q&A, Help & Troubleshooting] EvilHowl:
If you get the kernel booting it will be incredible:D
[Nexus 5X Q&A, Help & Troubleshooting] edoardotavecchio:
Which advantages should this porting cause?

I wish I could help you but I don't know nearly nothing about kernel development. You could ask to [MENTION=1863016]rachanta[/MENTION] and [MENTION=5996255]jollaman999[/MENTION] which are kernel developers only for this device, or Francisco Franco and flar2 which are developers for the main Android devices so they can provide you a really useful help, considering also that they're recognized as some of the best kernel developers on XDA.
[Nexus 5X Q&A, Help & Troubleshooting] Cozzmy13:
Future proofing, better performance, better battery, pretty much everything that has been optimized between 3.10 and 4.4. It's a considerable improvement if we're able to do this right. Sadly no one contacted me about helping, and I don't want to contact developers which might not be interested in doing this.
[Nexus 5X Q&A, Help & Troubleshooting] edoardotavecchio:
Considering that it could be a mighty improvement, I could contact them for you if you're okay with that.
[Nexus 5X Q&A, Help & Troubleshooting] Cozzmy13:
Well, it could be, it also could not be. That's why I'm reticent about contacting other devs, since some could consider this a waste of time because no one knows if it's do-able. It's possible, of course, but that doesn't make it easy.

The Nexus 5x community could also be dead when I do it, who knows.

I will give Francisco Franco a link to this thread. You can talk with others if you want.
[Nexus 5X Q&A, Help & Troubleshooting] edoardotavecchio:
I'll do.
[Nexus 5X Q&A, Help & Troubleshooting] htimsxela:
Hello! I'm very interested in this, as I'm trying to port a msm8994 device to a newer Android version and the kernel is very old (based on 3.10.84). It doesn't have support for O_TMPFILE, which is necessary to build Lineage 16.0. O_TMPFILE started in kernel 3.11, so I also need to port my current version to a newer kernel. The newer, the better, of course. Did you guys make any progress on this? Thanks!
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] NFound:
Description, screenshots, download:

https://4pda.ru/forum/index.php?s=&showtopic=778560&view=findpost&p=60341079

Source-Code: https://github.com/MoKee/android_device_zte_axon7
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] jimbo77:
Any mirrors? The link to download is kinda slow on my end :(
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] piet8stevens:
Hi, is XenonHD available for Axon 7? If so and if it works well, that would be a major reason for me to buy the phone.

Any idea of low light photo quality with XenonHD? Or possibility of saving raw?
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] nfsmw_gr:
Are you a maintainer?

Can you suggest that this rom becomes official?
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] KwesiJnr:
That is one cool-looking rom. Love the icons.
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] capeorigins:
Hmmm it has Dolby, that's awesome! Anyone know how it runs yet?
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] piet8stevens:
ZTE Axon 7 is not on the list of XenonHD supported devices: https://github.com/TeamHorizon/vendor_xenonhd/blob/n-oms/README.md
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] nfsmw_gr:
I really hope someone can be a maintainer for this rom.
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] Nik2424:
How smooth is this rom running? considering flashing it
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] hiperglyde:
It's the best. Let us know what you like about it.
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] KwesiJnr:
"Us"? Are you part of the of development team, man?
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] hiperglyde:
Nope. Just a fellow experimenter/flash junky.. "us" being the rest of the community
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] KwesiJnr:
Lol, alright, then. Almost thought we were going to get a maintainer there.
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] Nik2424:
Smoothest rom ever! super fast animations too! Thank you so much! Is the sound fix included already in it? v4.1?
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] justamar24:
Does anyone's back and recent buttons are reversed in the ROM? How can I fix it? I don't see the Dolby Atmos in ROM, how can I get it?
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] hiperglyde:
Google has all these answers
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] borusse72:
Dolby does not work for me!!!!! But everethig else works fine for me.
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] hiperglyde:
Did you try this?

ARISE+Deuteronomy+2.94+Modular+AROMA+Installer.zip

I've used it to install v4a and Dolby with success

https://www.androidfilehost.com/?w=profile&uid=24549084345925777
[ZTE Axon 7 ROMs, Kernels, Recoveries, & Other Deve] TheLastSidekick:
Can confirm having problems with other versions, this one worked for me a few weeks ago too.