Volume button + WiFi Problems + Touchscreen no reaction + Board computer problems - MTCB Android Head Units Q&A

I have some questions. (Copy from the old thread)
1. I mean that i read it here, but I'm not sure. At the moment I have very often the bug, that the volume button not works. Mute works, but louder and quieter not. I don't know when it doesn't work, but after a while no function.
2. Since a few days I have the wifi problem, that wifi works sometimes and after a while too, it shows empty bars and shows the connection but it doesn't work. In other case if I start the radio he can't find any WiFi. Why?
3. Since a few days the touchscreen doesn't work. I have set, that i can See if i touch. Then it shows a point. so i can see that the touch works, but there is no reaction. After a minuten the radio shows the bootlogo and have a loop. So i have start the radio new with reset or power off from the car.
4. Since a few days if i turn off the key normally all lights form the radio and display shut down. Additionally board computer shut down too after a few seconds. Now the light from the dvd tray is on and board computer too (after a lock from the car too). I dont know why but I don't know if that is so good (Battery).
All this errors are since a few days. I tried to do any settings but the problem is always here. Does anyone no about that? I think it's an app, but I don't know which one. The last chance (if I get no solutions) is to install another rom? That is really crazy, because it's only since a few days. The days before it works perfect.
I have JY 2.73 with the Malaysk Rom from September (1024).
Thanks

Update: Now i installed 2.59 JY and tried again. WiFi will always gone with no bars. So i turn off and turn on again. At the most cases it works. But the problem is here again. The same with the touchscreen crash. 3G doesn't work. always no bars.
So the previous MCU doesn't work again. Maybe a software error.

Could you please try to measure the voltage alignedto the HU while you encounter those problems? I rellay mean at the radio side (so not at the battery poles).
Such issues could be lack of voltage. If not and flashing does not solve it could be a defective unit.
Just to ensure: You flashed Firmware AND MCU? AM I right wit this assumption?
If not: Try to flash a new ROM first (probably try Malaysk ROM)
Btw: Moved to Q&A

dark alex said:
Could you please try to measure the voltage alignedto the HU while you encounter those problems? I rellay mean at the radio side (so not at the battery poles).
Such issues could be lack of voltage. If not and flashing does not solve it could be a defective unit.
Just to ensure: You flashed Firmware AND MCU? AM I right wit this assumption?
If not: Try to flash a new ROM first (probably try Malaysk ROM)
Btw: Moved to Q&A
Click to expand...
Click to collapse
Thx for answer. How can i measure that? Do you know which cable it is? And if the cable shows not the 12V? What can i do to fix the problem?
Sure. I have Malaysk Rom and the MCU JY 2.59.

you would have to get amulti- or vooltmeter and attach that between plus and ground pins at your HU.
If you don't know how you should eigther try to follow another way first if possible or ask someone to do it for you (it's electrics)

dark alex said:
you would have to get amulti- or vooltmeter and attach that between plus and ground pins at your HU.
If you don't know how you should eigther try to follow another way first if possible or ask someone to do it for you (it's electrics)
Click to expand...
Click to collapse
Thanks. I ordered a multilmeter. Maybe it's the battery. At the moment the car works really hard if I start it. The radio takes so much battery but the radio is off. So that can be the problem.

low voltage can cause many weird problems but you have to know a new battery might not solve your problem!
If you have low voltag while the engine is ruunning then you have a different problem. eighter there is a connection issue somewhere on the path the energy takes from battery and generator to the HU or your generator might have a problem. But that is open to check when we know if it really is a voltage issue.

Hi,
i'd like to give you an update for my problems. Since the last days I have the problems, that my car didn't start. Now we see, that the battery is nine years old. Now I charged the battery (tomorrow I'll get a new battery) and the first test shows WiFi works for 3 minutes. I know - that's not a lot, but I only can try if I have the new battery. 3G doesn't work - always the same. But that's not so important for now.
At the moment I don't have the volume error. I will test it, If i have a longer car drive.
The problem with the touchscreen is actually. Since a few time, after few minutes the touchscreen is bricked and I see the points that i touch it, but I can't click anything. If I touch ten times, twenty times or often then radio shut down and shows the boot logo... forever... it doesn't boot again. So I have to make a hard reset.
And the last point with the light board computer and the light dvd slot after plug off the key is actually too. It don't shutdown the lights on the standby time from 10 minutes (set it to 10 minutes). I know now, that I can shutdown it completely if I press the volume button for 3 seconds. Than it's turn off. So it's a setting problem from the firmware?
Today I plug in the key - nothing. Radio doesn't start. So I looked behind the radio and saw, that one thin cable is not in the wiring harness and I can see the wires on the cable. So I tried to put it in the wiring harness again. I hope it works longer now. I wrote carjoying and ask for a new wiring harness. Maybe all problems will be fixed, If i have a new.

Hello again,
now I've got a solution for the wifi problem. I've tried to connected wifi - i Known that doesn't work only few seconds and after a few seconds it shows 0 bars on wifi... now I disconnected my 3g stick and LOOK it works... full bars, no losing connection. I connect 3g again and the same problem after a few seconds.
So th3 3g stick (E1750 from Huawei) makes some problem OR the usb cable?

Huawei E355 also not working. Same connection problems with malaysk rom MTCD
Any suggestions?

Related

SCREEN Won't turn ON -FIX-

This Is A Fix For One of the problems that make the screen to not turn on
I'm working on finding what cause the issue.
OKAY. I did research and test problems, solution, was able to recreate the problems at any time. Here It is.
The Problems is cause when you do something at the same time that you go in standby.
I'm Doing the test LIVE at the same time that im righting the post
Exemple: #1 Im pluging my headset and unpluging it, at the same time that im unpluging my headset and press the standby botton, SCREEN WON'T turn on anymore. (HERE, I did not let the time to my headset to fully unplug) I have to replug my headset and after that, the screen will turn on.
The Problems is that some times you do it a LOT. Like unplug replug unplug replug, and the sequence get all mest up
Now I redid it, And I was having to plug my headset ( screen open) Go in standby again and unplug Will im in standby.
Im trying to reproduce the same thing with my usb cable.
I was having the problems for like 2 days since I listen to my music in the car at the same time pluging my headset lol.
the last problem was fix with the usb cable and not the head set.
To solve the problem do the last thing you did in reverse
IF YOU SOLVE YOUR PROBLEME.
NEVER unplug went your in standby
Make shure that your phone is not doing something when you unplug any cable.
Some got it fix by the sd card. ..... Now I don't know.
did they when in standby at the same time as polling the card out ..... or maybe there is no link betwen
Any way this is how I solve my problems. Good Luck
Give me feedback Guys and Help me Finding other source of the problems.
Problems Hapen in Mightyrom AND stock rom
Seriusly I don't thing that the problems come from rom or software
Benjamenizer said:
To solve the problem do the last thing you did in reverse
Click to expand...
Click to collapse
Your situation suggests plugging an audio jack or USB cable back in? Reconnecting whatever you disconnected as the phone went into standby? What about situations when nothing was plugged in or no programs were activly running in the foreground? And if it failed to wake due to a running process or program (a situation I can reproduse at will), how do you go back and "undue it" as you suggest with the screen not powering up?
Please take no offense. I don't want to seem ungrateful for your efforts or observations... but I think announcing this issue has been "FIXED" is a bit premature.
Your right. its premature. But If your screen don't turn on, and you din't do anything, and flashing a new rom doesn't work then I think you have to send the phone for wanranty.
This is the first solution I found so ( even online but they was a guys that fix the problems with his sd card)..
But what I can do Ill try to reproduce the problems with other things. And everyone that come with a solution please post.
I spend hour to find that solution lol so help me
msh441 said:
Please take no offense. I don't want to seem ungrateful for your efforts or observations... but I think announcing this issue has been "FIXED" is a bit premature.
Click to expand...
Click to collapse
Take no offense.. But opening a lot of thread will not solve our problem.
Here there is a thread where we are tryng to solve this problem: http://forum.xda-developers.com/showthread.php?t=619113
Maybe plugging cable can be a source of issue.. But the most of time that it happens i don't plug nothing!
So: unfortunately it is not fixed.

[Q] Bluetooth Won't Turn On

When I try to turn on bluetooth, the icon and text indicates that the system is trying to turn it on. However, it never actually turns on and after a few minutes reverts to indicating that BT is shut off. This problem used to occur sporadically and sometimes seemed to be cured by rebooting. However it is now at the point that it just won't turn on no matter what. I did the requisite googling and found nothing very definitive. It looks like I may have to do an exchange on the unit but I would rather not go to the effort of unrooting this unit and rooting the replacement.
Any suggestions of things to try beyond what I have indicated above?
TomSilverSpring said:
When I try to turn on bluetooth, the icon and text indicates that the system is trying to turn it on. However, it never actually turns on and after a few minutes reverts to indicating that BT is shut off. This problem used to occur sporadically and sometimes seemed to be cured by rebooting. However it is now at the point that it just won't turn on no matter what. I did the requisite googling and found nothing very definitive. It looks like I may have to do an exchange on the unit but I would rather not go to the effort of unrooting this unit and rooting the replacement.
Any suggestions of things to try beyond what I have indicated above?
Click to expand...
Click to collapse
Are you using an experimental ROM or stock rooted?
Jedi Mind Trick XI (although the problem has been growing worse and has happened across the last several JMT versions). I will give a stock rooted ICS a try.
I just tried a stock rom and the problem persisted.
I have the same problem
I have scoured the net looking for an answer, any answer, to this problem. It seems that a few people are having the same issue. But before it is ever answered, some dip$#!t always jumps in and says "I have the same problem, my phone won't connect to my car." Then the conversation goes off into other people that can't connect their bluetooth to their car or their headset- or their cat... That is not the same problem!!!
I cannot turn my bluetooth on unless I soft reset the phone. Even after I've gotten the bluetooth working, if I restart my phone the bluetooth turns off and when you try to turn it on, it says "Turning on Bluetooth..." It cycles for about a minute and a half and then goes back to "To see devices, turn on Bluetooth."
I bought this phone on Amazon for what appeared (at the time) to be a reasonable price. Since then, I believe that I have read at least one of the seller's post about bluetooth not coming on (no proof, just an educated guess). The seller probably got rid of the phone because noone could or would give an answer to this problem. Heck, it's possible that every post that I've read so far is by someone who owned this phone at one point or another. :silly:
I am sending this post to XDA because even the adminstrators on android forums say that you guys are the smartest and most responsive forum available. (Okay, they didn't say smartest- it was implied). Please help me resolve this issue.
I rooted this phone the moment that I pulled it out of the box. In other words, I don't know if the bluetooth issue is caused by the root, or if the previous owner didn't root the phone and also couldn't get the bluetooth to work. I believe that, because the phone is rooted, I should be able to remove and reinstall the app that bluetooth is based upon.
I am not a techie, the only reason I know anything about root is because I was complaining to someone about my old phone and how all of the bloatware that seems to constantly run eventually kills my battery. He told me about rooting, and it was easy enough - the rest is history. In other words, if you ask me for more information- I promise that I can give it to you. Yet, have patience with me if I ask you a question that you believe that any person that has rooted their phone should know.
I really hope that you guys can help me without bricking my phone. I truly appreciate any suggestions or thoughts on this matter.
jzxpw6;34880517I cannot turn my bluetooth on unless I soft reset the phone. [/QUOTE said:
I may have figured out what is going on, although I can't understand why it is (maybe someone more versed with processes can help me figure this out).
Using Titanium Backup, I first froze the two bluetooth items (Bluetooth Share and Bluetooth Test). Of course, that didn't remove anything, but I wanted to make sure that I could. Then I wanted to see how Bluetooth Share would react without Bluetooth Test. I unfroze Bluetooth Share.
I was then able to turn on and off Bluetooth fine. I restarted the phone and Bluetooth came in just like it did on my old phone. I guess I want to know:
1) Is the Bluetooth Test the cause of my problem?
2) Why is it there?
3) If I uninstalled it, would I experience a major hiccup?
There is still the possibility that this was simply a fluke, and very soon I will go back to the old bluetooth soft reset problem.
There is, however, one distinct difference between this phone and the last and may be the "drop out" that everyone else seems to be having. I have a Chevy Malibu with bluetooth in the stereo. On my old phone, when I started the car and got going, the word "Bluetooth" would appear on the digital display for about 10 seconds, which means that the vehicle detected and connected the bluetooth pairing. Yesterday, as I was driving in the car, every 5 minutes or so, "Bluetooth" would appear on the digital display.
This leads me to the conclusion that Bluetooth is dropping out and being picked up continuously by my vehicle. Does anyone have any thoughts on this? I'm okay with that as long as when I am talking to someone for more than 5 minutes I don't have to keep calling them back. I simply want to know what you guys think about this issue.
Click to expand...
Click to collapse
I am beginning to think that the problems I have had are related to the condition of the battery contacts.I have several third party batteries with contacts that are somewhat damaged from the pins on an external charger that came with them. I seem to experience a variety of problems when I try to use them.my original factory battery seems to work most of the time. I have several new Samsung batteries on order and will post again if they seem to solve the problem.
Sent from my SGH-T989 using Tapatalk 2
i had the same problem and it started with JMT so I switched roms countless times and the problem kept coming back. It would work for a little bit but when i turned it off it would not turn back on. I decided to go back to stock to see if the problem was still there and it was gone. Since then I have rerooted and once again flashing diff. rom every other day and bluetooth works just fine.
Well it seems no answer was found. I'm having the same issue as stated above. In my case, my bluetooth (custom ROM) keeps trying to turn on with the message "Turning On Bluetooth" until I soft reset the phone, after that it works fine.
enveous said:
Well it seems no answer was found. I'm having the same issue as stated above. In my case, my bluetooth (custom ROM) keeps trying to turn on with the message "Turning On Bluetooth" until I soft reset the phone, after that it works fine.
Click to expand...
Click to collapse
Was having bluetooth crashes for months using CM 10.1 on a T989 (no custom kernels)
Would crash anytime I tried to connect to car BT audio, or would simply not start up.
Flashed this yesterday.... and no crashes!
http://forum.xda-developers.com/showthread.php?t=2174100
For flash: Wiped dalvik/cache, flashed, fix permissions, reboot, start BT, deleted all devices, re-add.
No BT crashing of any sort for 36 hours now.
aaronchili said:
Was having bluetooth crashes for months using CM 10.1 on a T989 (no custom kernels)
Would crash anytime I tried to connect to car BT audio, or would simply not start up.
Flashed this yesterday.... and no crashes!
http://forum.xda-developers.com/showthread.php?t=2174100
For flash: Wiped dalvik/cache, flashed, fix permissions, reboot, start BT, deleted all devices, re-add.
No BT crashing of any sort for 36 hours now.
Click to expand...
Click to collapse
Hey thanks! I switched to JMT JB4 and it's not happening (much) now, I'll try to flash it and see if it fixes something :good:

M8S Problems

Hi guys
I got an HTC M8s less than 2 months now and it has so many issues it's driving me insane at this stage....
It's on stock ROM unrooted with all the latest updates.
First issue that came up was not recognising the headphones after i plugged them in, that eventually went away after lots of searching and fiddling with settings etc.
Then it started going into Car mode while it was resting on the table, no input on my end no triggers set for it, hell i don't even own a car to use this function....
I disabled HTC car and that stopped.
The included micro usb cable somehow went bad, tried it on other devices, it will not charge....
Now i'm having some weird charging behaviour, it drops out of charging and resumes or sometimes it just stops charging (that doesn't happen when the phone is charging while being switched off, so i'm guessing it's not a hardware issue)
Another massive problem is that all incoming/outgoing calls go to the speaker which almost burst my ear drum first time that happened.
I have looked in every single forum out there and have tried all possible solutions, ranging from disabling google Chrome to trying every available speaker management/toggle related program on the play store but nothing seems to be working.
Some times if i plug in the headphones, make a call and then unplug them, then it works as it should for a little while. But later on it reverts to the previous mentioned behaviour.
One thing i have noticed, before it routes calls to the speaker, the screen will light up, no notifications come up and then all calls go to the speaker.
I used Wakelock to try and find out which program triggers the screen wake in order to remove it and maybe solve this issue but nothing came up.
Any input would be greatly appreciated as i am at the end of my rope with this device....
I still have my HTC DHD A9191 and i never had any issues with that phone, i'm very dissappointed with HTC :/
Thanks in advance
Yanni
Less then 2 months......return it ! Not even sure what you want to achieve here besides messing up warranty ?
I am using Spign slim armor case on m8s and after using it my power button isn't working.
and I have a Motion Launch problem when phone is on my pocket it opens camera, calls someone because of the sensor.Any fix about that?
Kyaner said:
Hi guys
I got an HTC M8s less than 2 months now and it has so many issues it's driving me insane at this stage....
It's on stock ROM unrooted with all the latest updates.
First issue that came up was not recognising the headphones after i plugged them in, that eventually went away after lots of searching and fiddling with settings etc.
Then it started going into Car mode while it was resting on the table, no input on my end no triggers set for it, hell i don't even own a car to use this function....
I disabled HTC car and that stopped.
The included micro usb cable somehow went bad, tried it on other devices, it will not charge....
Now i'm having some weird charging behaviour, it drops out of charging and resumes or sometimes it just stops charging (that doesn't happen when the phone is charging while being switched off, so i'm guessing it's not a hardware issue)
Another massive problem is that all incoming/outgoing calls go to the speaker which almost burst my ear drum first time that happened.
I have looked in every single forum out there and have tried all possible solutions, ranging from disabling google Chrome to trying every available speaker management/toggle related program on the play store but nothing seems to be working.
Some times if i plug in the headphones, make a call and then unplug them, then it works as it should for a little while. But later on it reverts to the previous mentioned behaviour.
One thing i have noticed, before it routes calls to the speaker, the screen will light up, no notifications come up and then all calls go to the speaker.
I used Wakelock to try and find out which program triggers the screen wake in order to remove it and maybe solve this issue but nothing came up.
Any input would be greatly appreciated as i am at the end of my rope with this device....
I still have my HTC DHD A9191 and i never had any issues with that phone, i'm very dissappointed with HTC :/
Thanks in advance
Yanni
Click to expand...
Click to collapse
ok man
look i have htc one m8 + one m7+one max
the one m7 had the same problem of u
i will give to you one solution for try
i try it on the one m7 and its work
but on one max not work
on m8 not test yet
try this:
1. Turn phone OFF
2. Let charge for AT LEAST 10mins even if it doesn't look like it's charging.
3. Press and hold POWER + VOL UP + VOL DOWN for AT LEAST 2mins. Anything less will not reset the charge mode.
4. After 2mins release the buttons and the phone should boot as normal
if it not charge at the first time then try it again andd u will be OK
Hi Hazem
Thanks for the input, i'll give this a go when i get back home and let you know if it works out.
Should i try this when the phone is at 4-5% ? And then let it charge all the way ?
I'm experiencing these same issues as well after rooting my M8. Hopefully someone here knows what the issue is.
Well for me all issues remain unresolved.
My guess so far for the culprit seems to be the magnetic sensor, either badly programmed or a factory defect.
Kyaner said:
Well for me all issues remain unresolved.
My guess so far for the culprit seems to be the magnetic sensor, either badly programmed or a factory defect.
Click to expand...
Click to collapse
u must charge ur phone
turn off the phone
let him charge to full about 3 hours
and try the method
it will work
i test it on 2 one m7 phones
let me know if that work
thx
Sorry Hazeem I understand that English isn't your first language, and you are trying to help but you are not making much sence....
You are basically telling me to charge my phone, then switch it off and charge it again even though it's already charged for another 3 hours....
Ok an update !
HTC Released a service pack along with an update for the car application, after installing these and a couple of reboots the charging problems stopped and the phone doesn't seem to be waking up without any reason, as it did before.
The calls getting routed to the speaker still remain but thanks to an app called Auto Speaker, I've managed to work around this issue. Before the updates this application had no effect, but now it works as it should by turning off the speaker when the proximity sensor is blocked.
I hope I am not celebrating too soon on this and I'll keep this post updated if anything else, related to these issues, happens.
Update 2
So far so good and with another unexpected benefit, I removed my phone from the charger Saturday morning around 11 and as of now Monday 7:30 it's at 27% !

Wifi Not Enabled after Reboot - 12 Hour Time setting Resets After Reboot

Ok, I installed the new Joying 10.1" VW head unit in my car the other day, and it's working pretty good, however I'm having a couple of issues. I installed Malaysk's ROM onto it and still working through setting everything up the way I want it, but I'm having 2 issues I can't figure out, and they are driving me nuts.
Wifi: Whenever the unit reboots, the WiFi is disabled. I have to manually re-enable it every time.
12-Hour Time: Every time the unit reboots, the time reverts back to 24-hour time.
Anyone know what I can do to fix these issues? Getting rather annoying having to switch them every time the unit boots up.
Thanks
bwhite757 said:
Anyone know what I can do to fix these issues? Getting rather annoying having to switch them every time the unit boots up.
Thanks
Click to expand...
Click to collapse
Sounds like the 12+ and ACC connections are swapped.
Thanks for the reply, but the unit is switched on Via Can-Bus. There is no ACC wire. It powers on and off just fine when I start and shut off the car.
bwhite757 said:
Thanks for the reply, but the unit is switched on Via Can-Bus. There is no ACC wire. It powers on and off just fine when I start and shut off the car.
Click to expand...
Click to collapse
Then your 12+ is not constant.
Yep it is, verified with a volt meter, 12volt constant stays hot, even went out and checked after my car had been off for over an hour just to make sure... I shouldn't have said there is no ACC wire, ACC is supplied by the Can-Bus adapter.
As far as the wiring goes, I'm confident all of that is wired correctly. I used to install car stereos as a job for 5 years, and this is the 3rd head unit in this vehicle. I'm an Android enthusiast, and definitely know my way around the system, even though this is my 1st Android head unit I've dealt with.
The 12-Hour time issue was happening before I installed the ROM on it, but the WiFi issue didn't start until after I installed the ROM.
Ok, thats a puzzler then. My observations have been that wi-fi will turn off and 24 hour set every time power is lost on the 12+ line. It seems independent of rom used, would happen on the stock rom and on a older version of Malaysk's I'm currently using.
Well, for whatever reason today the settings never reverted back. I don't remember changing anything, but I did go through every single menu and sub menu in the settings section. Oh well, fingers crossed everything stays set, because this head unit is perfect for me now!
I have the same issue + no bluetooth. I have a YINUO 1024x600 Quad-Core RK3188 and it's doing the WIFI OFF, 24 HR, NO BT.

Headphone jack problem

Hello.
i have problem with my d855. when i connect my headphone i get really disturbing deep sound when i press navbar buttons and some parts of windows and listening music. If i dont touch enaything for 5 seconds the sound disappear. the interesting side of it after 2 or 3 hours without connect headphone, it just fix itselfs and when i restart the phone problem occur again. i have changed l'ke 10 rom in these two days and all of them have same problem i have tried mm roms, stock, lollipop even back to stock with kdz but i have the same problem everywhere but twrp menu.
Please lead me about that problem. It must be hardware issue but i dont understand how that is just disappear and not in twrp.
mabs123 said:
Hello.
i have problem with my d855. when i connect my headphone i get really disturbing deep sound when i press navbar buttons and some parts of windows and listening music. If i dont touch enaything for 5 seconds the sound disappear. the interesting side of it after 2 or 3 hours without connect headphone, it just fix itselfs and when i restart the phone problem occur again. i have changed l'ke 10 rom in these two days and all of them have same problem i have tried mm roms, stock, lollipop even back to stock with kdz but i have the same problem everywhere but twrp menu.
Please lead me about that problem. It must be hardware issue but i dont understand how that is just disappear and not in twrp.
Click to expand...
Click to collapse
Hi,
yeah I think that LG messed up the construction of the D855-headphone connection. Maybe the jack isn't grounded correctly, or the driver is written totally bad.
There are a few ways to "solve" this issue, but i don't think anything of that will completely remove this. In my opinion, it's a hardware-design related bug.
What some people do, is plugging out the headphones, making a call, and replugging the headphones. See here: http://forum.xda-developers.com/showpost.php?p=54985854&postcount=91
A hopefully better solution might be modifying the mixer_paths.xml in /system/etc. I'm using it too - for this, take a look here http://forum.xda-developers.com/showpost.php?p=59601465&postcount=150
Maybe Viper4Android has the ability to reduce the problems, but I didn't tested it...
you are life saver. I did the second methot it minimize the sound but the first one totaly remove it. thank you sir.

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