yashsingh1/xdaforums huggingface dataset:
[Android Head-Units] Sunnytur:
FM radio reception

Hi,

I can understand that some people like me has problems with the FM radio reception.

I have now had my unit for some time and the FM radio reception has been very bad.

I have tried several antenna amplifiers as I thought this was my problem.

However today I finally made a detailed investigation and found my problem.

My problem was a short circuit between the shield of my Radio module and the shield of the rest of the radio.

If you measure between the shields of the Radio module and the shield of the radio you should see something like 500-1K. ohm but mine was 0 ohm.

In my case it was a short circuit on the main PCB around the Radio module.

I hope this can help someone else.

BR,

Sunnytur
[Android Head-Units] dragoescu:
Hello,

Can you elaborate? Maybe some pictures? Where was the short and how did you fixed? It was like in my picture?
[Android Head-Units] Sunnytur:
Hi,

If you look at the back side of the Main board there is a big ground layer on the PCB but around the FM module it has been cut to make a separate ground for the FM module.

This cut had a shorten between these two grounds on the PCB..

To make a quick check you can measure between the tin box on the FM module to the radio ground which are two different grounds and the value must not be 0 ohm.
[Android Head-Units] dragoescu:
Inspecting the images from AN-21 U Hardware specs/hacks i do not see the grounds that you are talking about. Can you take a look and maybe point to the right picture?
[Android Head-Units] Sunnytur:
Hi,

My unit is for a Peugeot 508 so it looks a little different.

However you can see the cut on this picture around the connector/pin row:

[IMG="FM Tuner"]http://2h.dk/images/FMtuner.jpg[/IMG]
[Android Head-Units] MC Sushii:
iPod App Problem

Hi [MENTION=535343]all[/MENTION],

I really appreciate the incredible work anyone is doing here and I somewhat love my AN-21U. But I have some issues with my iPod connection.

While the app shows the right content, functions like playlist, album and so on work well, the list on the left side never plays the title I push at but a random other one. I disabled/enabled random play on both the Head Unit and the iPod, I tried reformatting the iPod in Windows or Mac format, I tried various models and generations (I have a load of these things flying around) but it never works right.

Am I the only one with that weird problem? Is there a known solution flying around? Any hints where to look at?

(I have the silver version with only three buttons and the volume knob on the left side running firmware 2.8.8, but the problem persists through all firmwares I tried.)

Thank you for reading.
[Android Head-Units] djblaze852002:
I have Google Play Music working!! I dont know how it was fixed, but ever since I installed RedMod, GPM has been working flawlessly. If you havent installed RedMod I suggest doing so.
[Android Head-Units] Mancubus99:
Thanks for the info. Unfortunately when I've tried installing RedMod I've had issues where my touch screen doesn't work. I've been able to get functionality back by uninstalling red mod. I've asked a couple of times for help but didn't get a response either time so I gave up on RedMod. Perhaps the promise of working GPM will motivate me to try again.

Out of curiosity, which version of stock firmware were you on before going RedMod? I have 2.0.70 and I suspect that I need to go to a newer version of stock before going to RedMod.

Thanks
[Android Head-Units] dragoescu:
RedMod is bases on 2.9.5 + MCU 4.3.13: http://4pda.ru/forum/index.php?showtopic=641709&st=760#entry39934174
[Android Head-Units] wanxu:
It works fine for me, I'm sorry. Maybe some option in the iPod itself?
[Android Head-Units] Edgaras7777:
Hi, i have problem with root. When i rooted my dvd, and when i dvd off, then on, my root is gone. What is the problem?
[Android Head-Units] wanxu:
Use RedMod. It has root always enabled.
[Android Head-Units] MC Sushii:
Any hint what to look for?
[Android Head-Units] Edgaras7777:
Sorry, but i dont whont use Redmod, i whont use original software... :((((

Maybe whats have for all times unroted apk. ?
[Android Head-Units] wanxu:
Then look in this post. There are some methods, but it's hard.

Sorry [MENTION=6996791]MC Sushii[/MENTION], I have no idea
[Android Head-Units] Alphas:
My FM radio reception is pretty bad, any hardware mod to get better reception. I had a powered antenna amplifier connected but it still get static. It is due to the bad FM chip used in this headunit?
[Android Head-Units] Quincydog:
No Sound... Boots To Update Mode

:confused: Hi All,

I had installed the latest Red Mod rom on my HU. It was working fine untill one day when I started the car and did not have any sound, also my volume control knob did nothing ( I have the 2 knob universal VW unit). I did several things to try to restore sound and volume control.

None of my efforts have worked.

Here is what I have tried:

1 press reset button

2 factory reset

3 reinstal previously working MCU

4 install MCU from RED ROM ( does not work for my VW 7-10 version) Then reinstalled previously working MCU.

5 full format ( my DVD is already FUC**ED)

6 install 2.8.8 again

7 install RedRom again

All result with no sound or response from my volume knob. Also interestingly when the unit is booted it always goes into UPDATE MODE.

I think someone else had posted about their unit doing the update thing on boot. Did that issue get resolved?

Any ideas on how to get this HU working again?

Thanks.
[Android Head-Units] perieanu.ovidiu:
you didn't say the most important thing:when you turn the volume,you have on screen the volume control window?

in your place,I'll try to reverse the buttons in the dvd settings,you check quickly the hw issue.if you have 2 buttons course,if not,just replace the button,is somethng like 2 euros a piece.or check youself with a multimeter the button,you have 'shorts' appearing when you turn it on some pins,google is your friend,

best regards,

ovidiu
[Android Head-Units] dragoescu:
Hello,

After you installed REDMod, have you selected MCU from the MCU list (in extra settings)?

" was working fine untill one day when I started the car and did not have any sound" this things can not happen like "magic". Did you changed any settings in extra settings?

Also, the most important....do you know what was your MCU version before you installed REDMod?
[Android Head-Units] Mancubus99:
OK, I was finally able to load RedMod with my touch screen working so my issue has been resolved. I'm posting this here in case anyone else runs into the same issue. (TLDR at the bottom)

What I found:

Whenever I tried to update from 2.6.70 to RedMod, my touch screen would not work. Reverting to .70 would bring my touch screen functionality back. I also tried updating directly to 2.7.29 but experienced the same problem as when I tried to go to RedMod which was a non functional touch screen. I then decided to download the FW files for my head unit and install them in this order:

2.6.70->2.6.98->2.7.11->2.7.28->2.7.29->RedMod.

This took a while but in the end I have been finally able to successfully load RedMod onto my HU and have a perfectly working touch screen. I probably could have skipped a version or 2 towards the end however given the issues I had in the past I wasn't going to take any chances. Hope this helps someone else who comes across this issue in the future.

TLDR: Make sure you are on the latest version of FW before upgrading to RedMod. Depending on the version you're coming from, you may have to perform sequential updates until you get to the latest otherwise you'll experience touch screen issues even before loading RedMod.
[Android Head-Units] perieanu.ovidiu:
that's not an update,it's just setting the wright set of parameters according to your processor.the update was when you did the flashing from 4.3.10 to 4.3.13.

glad you did it.

best regards
[Android Head-Units] pex76:
Garmin streetpilots

Hello anyone it s able to working one version of streetpilot ? I need this apk work with mi car radio
[Android Head-Units] KITT1995:
Hello,

Someone has the password for the archive of latest RedMod (0.2.8). Thanks in advance
[Android Head-Units] Quincydog:
Hi,

First of all thanks to everone who has responded to my questions.

Dragoescu unfortunatly some " Magic " may have occurred as I did not change anything on my HU. I just got into my car and after the radio had booted there was no sound ( no response from volume knob or tuning knob )....The previous day it was working fine.

My mistake was probably bragging to a friend about how much I love this unit after the bugs were mostly fixed!!!!

I am on the same MCU as before (4.3.5-7-10-6501).

I am not sure if I had mentioned this but the HU was trying to go into "Update" mode on every boot. Do not know what may have caused these problems.

I have a second HU that is nearly identical and may try swapping the face to see if it makes any difference.

I will let you guys know if I solve this issue. :confused:

EDIT.... Well I change face plates and the unit does the same thing ( no sound or response from knobs ).

I do not know what to try next.

Thanks
[Android Head-Units] jblade1000:
Use Market Helper

Yeah, this is super late, but I believe I used market helper
[Android Head-Units] pex76:
please help my my unit it s

Cortex A9 dual core

Android Version - 4.2.2

MCU Version- 4.3.16-7-01-650201-151022

System Version - 2.94_20150316

this its an a21 u
[Android Head-Units] macca017:
I was going to ask the same question.

I use google to translate the Russian forum automatically, so I can't find a way to view it in Russian again?

http://translate.googleusercontent....t=5700&usg=ALkJrhiqebr845aK3gIM0Sn_cFBR8jh8dA

There is a post on the above page that translated into English is = Message 5711 * mobi97,

plyusanul. Please password: blush:

blush doesn't work, however, what they wrote in Russian should?

If anyone works it out, please post the password as it was written in Russian.

Just checked the web page again and the password is gone?
[Android Head-Units] KITT1995:
": blush:" is an emoticon :p. They won't write the pass in the topic, only through the Plus button (but I can't do it cuz I don't have enough posts)
[Android Head-Units] captin44:
Hello

I have a radio for Android 4.2.2

And I want to update the radio

Radio specifications

cpu : cortex a9 dual core

ram : 1 gb

ver : 4.2.2

mcu ver : 4.3.8-11-10-450101

system ver : 2.7.39

dvd ver :: 2.13.13.1 -860mc

please help me
[Android Head-Units] safkafin:
Sound issues with 3rd party apps

Hello. Does anyone know how to fix annoying sound problem with 3rd party apps like netradio and spotify as well as vid apps? I uploaded example video to Youtube. I've tried sound settings 'sound priority' and different firmware versions. http://youtu.be/z1HbdtK1g4Y
[Android Head-Units] djblaze852002:
Check the sound settings. There are 3 options... Intelligent, 3rd party, and system I think. See if one of them works better for you.
[Android Head-Units] macca017:
I have never had this problem before, why is mobi so worried that he has to secure it with a password?

Most of us non-russians can't join the forum and have no chance to ask him for the password. :confused:

EDIT: I just found this post by mobi on the 4PDA forum.

The men, all in your hands !!! Please do not pour your password, who asked him to selflessly gave)

The reasons I have for this are many, the first is the XDA forum. On the other, I am silent.

If both the password fall into the network, wring project. I will only work with the auto companies.

I love myself free, but when my work and words of thanks does not deserve, do not want to work.

Why do not you want that was flashing on XDA are they openly wrote that the firmware is not necessary, and thank you and now ask for your password to anyone or they merged.

The guys from Germany, you too, please do not merge. I gave you the password)) hope for understanding !! You have a friendly forum)

Seems he doesn't want anyone on this forum to use his firmware as someone said it was "not necessary", very sensitive bloke.
[Android Head-Units] roystervi:
com.tw.service

Does anyone knows what this file is for, "com.tw.service_a5a4.apk " I always see it when I go to the redmod site and it next to the latest RedMod.

Also I downloaded the latest redmod 2.8.1 but the rar file has a password. The site said not to share the password in the XDA forum.. So if anyone figure out the password can you pls IM or PM me

thanks in advance
[Android Head-Units] macca017:
Can you also put me on the list to PM if the password becomes available.

Just goes to show how a minority of members can make it difficult for the majority.

If you don't like the mod, don't use it and then there is no need to make negative comments about it! :mad:
[Android Head-Units] Ilin Alexandr:
Я mobi97 - 4PDA

Я приношу свои извения за не удобство.

Когда у меня были проблемы с AN-21, у вас попросили собрать донат для покупки или восстановления. В ответ я получил отказ в грубой форме.

После этого прошло много времени прошивка развивается, но от вас даже не было сказано спасибо, про донат я так же могу забыть от вас?

Если есть желающие пишите на почту буду с каждым общаться индивидуально.

Проект с прошивкой могу в любое время закрыть так как мне уже 2CORE не интересен перехожу на 4CORE.

Если вам хочется и дальше получать обновления, то нужно как то поддерживать проект.

Все большое спасибо. Ещё раз извините за не удобства!

---------------------------

I mobi97 - 4PDA

I offer my not Sorry for the convenience.

When I had problems with the AN-21, you were asked to collect Donato to buy or restore. In response, I was refused in a rude manner.

After that was a long time developing the firmware, but of you did not even have to say thank you, about Donat I just can not forget to you?

If there are willing to write to the post office will communicate with each individually.

Project firmware can close at any time since I have not 2CORE interesting turn on 4CORE.

If you want to continue to receive updates, you need to maintain it as a project.

All thank you very much. Once again, sorry for not amenities!
[Android Head-Units] perieanuo:
Thats b...****,in his Faq file he asked for money,paypal ir money transfer to his company.so,he's not having a signed clause with the fabriquant not to share his work.second,we all seen software shared with the posibility of pay the author,like myphoneexplorer which I love,but these authors gave you the sw and if you love it you pay.or some trial mode.but asking for money for a sh...t tuning is a big joke.the guy didn't make the hot water.inmh,it worth paying for an 4.4.4 upgrade for example,that's something.I'll stop folowing this russian and that's all folks.

Sorry for the non_tehnical character of my posting!

Envoyé de mon HUAWEI NXT-L29 en utilisant Tapatalk
[Android Head-Units] wanxu:
What a pity, [MENTION=5596572]Mobi97[/MENTION]'s feelings :( I am really thankful for his software, I don't know why he doesn't want peope at XDA to try his firms. We are just AN-21 enthusiast, just like him, just like the folks on the thread at 4PDA. Actually this is a problem with russian language. We can't speak russian, we are not different from the people on 4PDA, it's just we can't be part of them and help. Just look at this thread, we are helping each other. Actually I'd love to have [MENTION=5596572]Mobi97[/MENTION] in this thread and talk to him and try to help.
[Android Head-Units] Ilin Alexandr:
Я написал в чем проблема) я не настаиваю и не прошу у Вас донат, но мой интерес не в том чтоб запретить или закрыть доступ к прошивке.

Я это сделал для того чтоб всем донести что я трачу все своё свободное время на новые идеи и разработки не просто так а с надеждой что мне отправят щедрый донат))) В России об этом не забывают а вот у вас вроде об этом забыли(
[Android Head-Units] eloko:
I got my radio with a white black screen and static on the speakers. I tried everything I could read in here with same problem, no luck.

I probably get a new one.

http://pages.ebay.com/link/?nav=item.view&id=151959681207&alt=web

Sent from my phone device.

What you guys think about this one?
[Android Head-Units] macca017:
Mobi is now in this thread, he has made a few posts explaining his actions.

His user name is http://xdaforums.com/member.php?u=7438243

Send him a message and ask for the password. :cowboy:
[Android Head-Units] Alphas:
Anyone have the same problem and any hardware fix?
[Android Head-Units] wanxu:
Then, how can we contribute to the project?
[Android Head-Units] perieanuo:
I will contribute if I see a version 4.4.4 :) mostly for mirrorlink like app.just for changing some colors,içon position and so,I'll do my poker face [emoji12]

Envoyé de mon HUAWEI NXT-L29 en utilisant Tapatalk
[Android Head-Units] Ilin Alexandr:
Это не возможно сделать из за того что на 2CORE раздел system 280 mb, а android 4.4.4 занимает 410 mb. Так что это не возможно сделать. Ещё раздел BOOT очень маленький, для BOOT 4.4.4. Надо полностью переразбивать flash память, через программатор. Вы это сможете сделать?

---------- Post added at 04:21 PM ---------- Previous post was at 03:57 PM ----------

Пишите личное сообщение)))
[Android Head-Units] perieanuo:
I should check the chip case,not sure if it's a bga or soic.I vahe experience with chip flashing and I have adapters for many flash capsules,up to 40 pins(I work in electronics developement small company,so we deal with dsp and flash a lot).I thought you can push 4.4.4 on the sd card if you need extra space,but I didn't study the memory requirements for 4.4.4.

Btw,I am sure you speak english and the forum requires that.my wife speaks russian,but he knows sh...t about electronics,she's economist :) she translated with some aproximations.

Envoyé de mon HUAWEI NXT-L29 en utilisant Tapatalk
[Android Head-Units] Ilin Alexandr:
Извините но я не знаю английского, общаюсь через переводчик (

В нашем AN 21 нет рековери, и не снимая чип с платы никак по другому нельзя будет переразбить память AN 21. Мы давно изучаем этот вопрос, но никакого способа не нашли. Если было бы у нас рековери в AN 21, но у нас его нет и на этом вопрос закрыт. Это устройство нельзя обновить до андроид 4.4.4 и если честно я смысла в этом не вижу.

Для чего вам нужен андроид 4.4.4? Там все точно так же;)

p.s. если вам не нравится что я пишу у Вас на Русском языке. Могу вставлять текст через переводчик, но думаю так будет сложнее меня понять. Могу совсем не писать)?
[Android Head-Units] roystervi:
com.tw.service

does anyone knows what this file

com.tw.service_a5a4.apk

is for and where to put it?
[Android Head-Units] macca017:
http://xdaforums.com/wiki/Tonghai_Create_AN-21_U/Skinning_system_applications

Here is the tool

http://ibotpeaches.github.io/Apktool/install/
[Android Head-Units] perieanuo:
I think you dont get it.i'll only speak in english.see ya

Envoyé de mon HUAWEI NXT-L29 en utilisant Tapatalk
[Android Head-Units] hellSunshine:
VERY OFFTOPIC

What happened? Rules here changed overnite? Posts only allowed if user's communication language is limited to superior English? Donald J. Trump already elected to be the leader of the free world? :confused::confused::confused:

So, first, please excuse my poor language when giving my 2 cents about the "Red Mod situation". :(

Second, a quick reminder since people tend to forget certain things quickly: Red Mod got downloaded (and installed) a couple of hundred times in the past few months. Maybe more than 1000 times meanwhile. There were dozens of supporting posts about the achievements in Red Mod compared to the poor original Chinese firmware (and of course a few demanding more / technically impossible modifications). My guess is that less than 40/50 Red Mod users decided that it's a great thing to support the developer and value his work by giving some donations. Even when the developer's unit broke and his project seemed to come to a sudden end only very few people really cared (and supported him). Anyway.

Third, there are great people here [MENTION=243864]xda[/MENTION] supporting each other. People who understand and respect the achievements brought to us by that guy from Tscheljabinsk who did all this on its own as a hobby in his spare time. For them, no need to be afraid that Red Mod will not be available anymore - just talk to mobi97 and support him.

Finally, my conclusion is that it's perfectly right that Red Mod is only available for those who actively support this project. It should have been like this from the beginning. Of course, this is my very own opinion. No offense.

PS: However, the age of AN21U 1st Gen is over anyway. Good night, dear old AN21U - say hello to the quad core version (and IQ Navi firmware). :p
[Android Head-Units] roystervi:
[MENTION=5797001]macca017[/MENTION] What is the short version, I don't know how to edit app, make app or edit app and those links only tells how to download to edit. I just wanted to know what the file is for.
[Android Head-Units] perieanuo:
Nu te obosi dragul meu sa upgradezi un an21 obsolet.daca nu poti tu sa pui 4.4.4 e alta istorie :) .nu uita ca sunt aparate cu ram de 512 care o fac,istoria ta poti sa o spui amatorilor.mult succès cu stransul paralelor.e faina discutia intr_o limba care nu o cunosti?

Daca vroiai suport de la inceput,sansa era de zero patroane.daca citesti postari anterioare de cateva luni o sa observi ca eu am propus asta de mult :( adio

Envoyé de mon HUAWEI NXT-L29 en utilisant Tapatalk
[Android Head-Units] captin44:
Hello

I have a radio for Android 4.2.2

Model : Kaier kr-7001

And I want to update the radio

Radio specifications

cpu : cortex a9 dual core

ram : 1 gb

ver : 4.2.2

mcu ver : 4.3.8-11-10-450101

system ver : 2.7.39

dvd ver :: 2.13.13.1 -860mc

please help me
[Android Head-Units] dragoescu:
:)) placa cu android pe care o avem nu suporta 4.4. Partitia de boot e mica, nu incape bootloader ul de 4.4.

Una peste alta eu ii respect munca, am donat mai demult si il inteleg cand redpower ii ia modificarile si le vinde in rusia sub forma de firmware pt navigatiile lui. Este munca lui, pana la urma el decide ce face cu ea. Si daca vorbesti cu el o sa iti dea parola.
[Android Head-Units] perieanuo:
Da,ok,dar e prea agresiv cu pretentiile,in fond nu a inventat roata,si sa platesti un update fara sa testezi inainte nu vad de ce,omul e doar un mic programer fara referinte,intr_ozi te poti trezi cu un spyware de toata frmusetea.nu e in postura sa ceara € in avans.ca nu are spatiu de boot eu de unde sa stiu,pe aparate asamanatoare cu al meu eu zm vazut 4.4,daca vrea ajutor cu hw sa ceara frumos.ii urez succes la colecta,eu am propus altceva mai de mult si doar un mirrorlink mi se pare update real,restul is doar glume.mc de post,apreciez ca ajuti mereu pe ceilalti,asta e spiritul xda si nu facutul paralelor,pt asta avem job-ul principal.eu zic,daca vrea bani,app store si gata.ozibuna si paste fericit!

Envoyé de mon HUAWEI NXT-L29 en utilisant Tapatalk
[Android Head-Units] Ilin Alexandr:
Я был насчёт вас прав, вам даже жалко сказать спасибо))) кто хотел тот со мной связался и получил пароль.

Всем вам удачи.

p.s. все следующие прошивки будут под паролью. Пароль буду менять чтоб не было утечки.
[Android Head-Units] wanxu:
Well, I think most of us won't change our AN21U, so we like updates. By the way, what's IQ Navi firmware?
[Android Head-Units] hellSunshine:
"IQ Navi" is an enhanced firmware for the AN21U 2.Gen (quad core) by the same developer who gave us "Red Mod". It's actually quite similar to "Red Mod" (from design/function point of view) but based upon Android 4.4.

Main difference: The firmware "IQ Navi" is owned by the Russian company IQ Navi which is a reseller for the AN21U unit in Russia. So, development is done by mobi97 (and few others) but the rights for the modifications are with the IQ Navi company. However, also "IQ Navi" is currently available for download @ 4pda for free.
[Android Head-Units] majB:
Just got this firmware from audiosources manufacturer. Did anybody tested it?

system software V4.5.3_20151027_TW3

inside are these two files:

92e82e86-1e25-11e5-bffa-000c29ba27c0

91973a18-1e25-11e5-b937-000c29ba27c0
[Android Head-Units] dragoescu:
are you sure this firmware is for an-21-u dualcore?