USB Ports not working. - MTCB Android Head Units Q&A

Hello to all
I have a huifei 4.4.4 system and both the rear USB ports have stopped working. 5V on the ports is working OK. SD cards are working fine. Wifi and bluetooth is working fine. I tried to update mcu with newer version but no luck. I have been playing around with different music players and car service app. System was rooted at the time they stopped working. I have also tried factory reset but still not working. Not sure if I upset something while playing around. Hoping someone out there can help me re enable the ports. Thanks in advance for any help.

I'm experiencing an issue like that: Whenever I'm listening to mp3 files via USB it stops playing after some time. At that point I am not able to browse the USB stick - it simply stuck. Only a device restart helps at that point.
But playing mp3 via sd card works fine!

Thats what I'm doing. SD card works fine for me. My usb's are completely dead. Nothing is detected when I plug in.
Sent from my SM-G900I using Tapatalk

Mine front one too (back ones I didnt tested yet).
Is there many of us with USB problems? Any fix? I was searching HW thread but didn't found much there.
There is just some hint on enabling "adb debugging" ("adbon" password in Factory Settings or option in Debugging Options on rooted ROMs) but that didn't worked for me.

Mine isn't completely broken. It only stucks at some point - after booting, both back USB ports are working fine...

I've tried that. Still not working. You think if i use different rom it might reset something snd get it working again? You running standard rom or have you updated?
Sent from my SM-G900I using Tapatalk

It standard rooted... But as I mentioned: its not fully working on my unit, too.

I had a problem where the WiFi would shutoff and couldn't be turned on until a reset. Ended up being the USB power due to a bug in the MCU software. If you haven't already tried the MCU update, it might be worth a shot.

I had that too where i couldn't turn the wifi on. For some reason the wifi is working again. I checked 5v supply on usb port. Supply seems ok.
Sent from my SM-G900I using Tapatalk

None USB ports working in my Android HU.. they just charge but don't read
Hello friends!
I bought an Android Head Unit MIB4 (SC9853I) for my VW Golf 7:
https://www.alibaba.com/product-det...l?spm=a2700.7724838.2017115.25.71201862OEMWlE
Everything works fine but I'm having problems with the USB ports.. the 3 usb ports charge my phone but they don't read any usb drive with music. I don't know if this is a hardware or software problem.. I've tried formatting several usb drives (4gb , 1gb, 64gb) in fat32 but none of them are read by any usb port of the headunit.
Please, help me! and thanks in advance..
---------- Post added at 08:48 PM ---------- Previous post was at 08:40 PM ----------
Hello friends!
I bought an Android Head Unit MIB4 (SC9853I) for my VW Golf 7:
https://www.alibaba.com/product-detail/Hot-selling-android-system-octa-core_62185754927.html?spm=a2700.7724838.2017115.25.71201862OEMWlE
Everything works fine but I'm having problems with the USB ports.. the 3 usb ports charge my phone but they don't read any usb drive with music. I don't know if this is a hardware or software problem.. I've tried formatting several usb drives (4gb , 1gb, 64gb) in fat32 but none of them are read by any usb port of the headunit.
Please, help me! and thanks in advance..

Majelogo said:
Hello friends!
I bought an Android Head Unit MIB4 (SC9853I) for my VW Golf 7:
https://www.alibaba.com/product-det...l?spm=a2700.7724838.2017115.25.71201862OEMWlE
Everything works fine but I'm having problems with the USB ports.. the 3 usb ports charge my phone but they don't read any usb drive with music. I don't know if this is a hardware or software problem.. I've tried formatting several usb drives (4gb , 1gb, 64gb) in fat32 but none of them are read by any usb port of the headunit.
Please, help me! and thanks in advance..
---------- Post added at 08:48 PM ---------- Previous post was at 08:40 PM ----------
Hello friends!
I bought an Android Head Unit MIB4 (SC9853I) for my VW Golf 7:
https://www.alibaba.com/product-det...l?spm=a2700.7724838.2017115.25.71201862OEMWlE
Everything works fine but I'm having problems with the USB ports.. the 3 usb ports charge my phone but they don't read any usb drive with music. I don't know if this is a hardware or software problem.. I've tried formatting several usb drives (4gb , 1gb, 64gb) in fat32 but none of them are read by any usb port of the headunit.
Please, help me! and thanks in advance..
Click to expand...
Click to collapse
I Am alose facing same issue.... tried 8 GB flash drive in FAT32 and NTFS and ExFAt.. none of them working... Any idea ?

Same here, I had a problem with android auto, the Dasaita vendor sent me this message:
Here the latest link with system and updatesX6 android 10 (1113) https://drive.google.com/file/d/1rO-wBK8rvVZsXT_5IjN3MyuMY00utZZX/view?usp=sharing Please download, then ONLY put the update.zip file to the USB (format the USB firstly). Finally, click the setting > system > system updates to update it. Here the latest link with MCU and updates 3.67 MCU https://drive.google.com/file/d/1VHmt2nffbQdc2iHiy_Pl3rNwLXN4cVea/view?usp=sharing Please download then ONLY put IMG file to the USB (format the USB firstly). Finally, click the setting > system > MCU update to update it. Hope the update can help you fix the issue. How to update the system:
(If you can't download the file, please change the Explorer or computer to do it. If it ask you for the Credit card id, just create the sendspace account then you can download it, No need to write your Credit card id information! )
After updating everything, my external USB ports don't work anymore.
Any clues on how to fix it?

magoanubi said:
Same here, I had a problem with android auto, the Dasaita vendor sent me this message:
Here the latest link with system and updatesX6 android 10 (1113) https://drive.google.com/file/d/1rO-wBK8rvVZsXT_5IjN3MyuMY00utZZX/view?usp=sharing Please download, then ONLY put the update.zip file to the USB (format the USB firstly). Finally, click the setting > system > system updates to update it. Here the latest link with MCU and updates 3.67 MCU https://drive.google.com/file/d/1VHmt2nffbQdc2iHiy_Pl3rNwLXN4cVea/view?usp=sharing Please download then ONLY put IMG file to the USB (format the USB firstly). Finally, click the setting > system > MCU update to update it. Hope the update can help you fix the issue. How to update the system:
(If you can't download the file, please change the Explorer or computer to do it. If it ask you for the Credit card id, just create the sendspace account then you can download it, No need to write your Credit card id information! )
After updating everything, my external USB ports don't work anymore.
Any clues on how to fix it?
Click to expand...
Click to collapse
My USB ports only charge on my Px6 and no updates seem to fix it. I don’t have usb debugging options either. Not sure what to do to fix. Any suggestions?

Cbenton82 said:
My USB ports only charge on my Px6 and no updates seem to fix it. I don’t have usb debugging options either. Not sure what to do to fix. Any suggestions?
Click to expand...
Click to collapse
Perhaps posting in correct forum might yeild responses. The last few posts none of the units are MTCB.

Cbenton82 said:
My USB ports only charge on my Px6 and no updates seem to fix it. I don’t have usb debugging options either. Not sure what to do to fix. Any suggestions?
Click to expand...
Click to collapse
I have same problem. Did you find a solution?

famepa said:
I have same problem. Did you find a solution?
Click to expand...
Click to collapse
Far out. Posting in wrong forum.

Related

[Q] WinMo wont connect via USB since new Froyo installed.

I was trying to put the hum/hiss sound fix on my sd card and I cannot get my pc to connect via USB...
My wife has a TP2 and it connects fine...
I have tried with/without the sd card in, rebooted the pc and phone, rebooted the phone while connected to the pc.... nothing...
wtf...
anyone else with this problem?
PS... NRGZ28 had posted a very basic rom for booting to android back in Feb and it is now gone from hotfile. Anyone know of a quick boot into android?
- Try a different computer
- Try a hard reset
That are the first thing you should do.
Tried hard reset...
Dif PC is not an option at the moment... I have rebooted...
Just flashed the ROM (NRGZ newest, thank goodness I had it on my SD card) and I still cant get it to sync...
I have attached the USB error I am getting... (Win7, new install)
The phone is not asking if I want to active sync or use as storage???? wtf...
FarBeyond said:
Just flashed the ROM (NRGZ newest, thank goodness I had it on my SD card) and I still cant get it to sync...
I have attached the USB error I am getting... (Win7, new install)
The phone is not asking if I want to active sync or use as storage???? wtf...
Click to expand...
Click to collapse
Reboot your PC? lol bet your tried that already...
Try this:
settings > connections > usb to pc > and disable Faster Data Sync then try. This way uses the generic usb drivers and maybe it will connect.
That did not work...
How do I get my Win7 laptop to see the phone with Android on it?
FarBeyond said:
That did not work...
How do I get my Win7 laptop to see the phone with Android on it?
Click to expand...
Click to collapse
dont think thats working yet
Ya I don't think that works yet, it's tied to Android software drivers and the use of the USB port, since there is no drivers to control the port only to charge battery. Windows thinks there is something there, but the phones USB can't communicate back....I think this is the issue or at lease after playing around with it on my phone anyway
Not that it's a huge amount of help but might troubleshoot down to the hardware level...if you go into bootloader mode on the phone and connect to USB does it connect?
I don't think you should go that deep and dirty. My touch pro 2 works only with only 1 (non-HTC) cable of the 10 i have at home, all are the "standard" mini-USB but only one works flawlessly for communicating/flashing/syncing, the other cables either do the same error - device not recognized - or windows says that the device could communicate faster - and only copies files slowly.
All in all: you should simply check with another USB cable or if you have the factory HTC cable try it with that. I noticed that the cable i am using other than the HTC one is a very good quality thick (low-resistance and double-shielded) USB cable and it never failed on me.
One other thing you should definitely watch for: plug the USB cable into the motherboard USB port directly (on the back of the PC where you plug the keyboard, mouse etc.), sometimes PC cases with front panel USB outputs simply die, or are wrongly attached to the motherboard USB header and it can cause the aforementioned problems too, not to mention if it is wrongly attached it could harm your phone too.

[Q] P6 Can't establish connection via USB - Help needed

EDIT:
Most part of that problem solved, I bought new USB socket with ribbon, and replaced it. It worked. it seems there was a cold solder near the socket. USB works now with other devices like Flash drive, mouse, etc..
Still there's a little problem - while connected to a PC, neither phone nor PC show any signs of connection.
Anyone met the same problem? I checked on to computers Win8.1 and Win7 - no response.
I tried to install some additional drivers but with no luck...
------------------------------------------------------------------------------------------------------------------
< Old >
I've got Huawei P6 and used it with a few ROMs, after flashing one I noticed android doesn't detect USB connection anymore.
It sees it as regular charger - no popup on notofication bar, no way to exchange data with PC.
Changing ROM doesn't solve the problem. I tried stock ones with no effect (installed from zip file in TWRP).
I searched over the web and found no similar case. I think rolling back to full stock could possibly help, but I'm not sure how to do it - will creating dload folder with install data be enough? does it contain all the kernels, recovery and so on - to have the software version exacly as from factory?
USB OTG doesn't seen to work now either, It all worked before. Is there a way to force-detect the connection?
Please, don't write me to check the cable or drivers or to clean the USB plug. Each double... tripple checked. Tried different cables, computers. I've no problem connecting other phones.
I'll be very greatful for help in solving this issue. Even copying a photo to a pc is a problem now...
thanks in advance

usb data not working after september update

USB cable only charges the phone when connected to computer. Tried the following
1. Using 2 different cables which previously worked for data but phone only shows charging.
2. Using pc and Mac and both does not see phone. Looked in device manager of windows but it nothing shows up. Both computer previously used for data transfer on this phone
3. Looking inside usb-c port but no lint or dirt. Although just before update to September security patch my phone has some water on the screen which I wiped off. And the phone does not show sign of problem other than no data transfer to computer
4. Factory reset phone and same thing
5. No notification shown for changing charging only to file transfer
6. Computer doesn't Bing when connected.
What else can I try? Anyone can help or confirm if their usb-c works after September update so I can narrow down to hard ware problem.
Anyone diagnosed this hardware problem before?
Do you have developer options enabled in settings? If you do go into networking/usb configuration and change that. If you don't you can enable it by going into about phone in settings and tapping the build number 7 times.
jd1639 said:
Do you have developer options enabled in settings? If you do go into networking/usb configuration and change that. If you don't you can enable it by going into about phone in settings and tapping the build number 7 times.
Click to expand...
Click to collapse
I tried changing the options to MTP, PTP, midi, charge only, etc but non of them make any difference to the computer, nothing pops up and does not show as new item connected in device manager
did you try changing from charging to mpt, and maybe back and forth, while the phone was connected to the pc? I have the same update on my 5x and mine is working fine.
jd1639 said:
did you try changing from charging to mpt, and maybe back and forth, while the phone was connected to the pc? I have the same update on my 5x and mine is working fine.
Click to expand...
Click to collapse
Tried changing when USB connected and when not. Doesn't seem to make a difference.
I'm not sure what to tell you. You could try flashing the firmware package prior to the sept update. You'll have to re-set up your phone, but if you've already done a factory reset it won't be worse than that. That could tell you if it's software or hardware
jd1639 said:
I'm not sure what to tell you. You could try flashing the firmware package prior to the sept update. You'll have to re-set up your phone, but if you've already done a factory reset it won't be worse than that. That could tell you if it's software or hardware
Click to expand...
Click to collapse
I don't know how I can flash a previous firmware if I don't have USB access.. it's really frustrating. Looking from ifixit. It does not seem there is any chip near usb-c other than voltage control.
Can't seem to find how I can look at logs to know if USB has been engaged or if there is any error message. It's all dead end and my phone seem to be the unique case.
Are you rooted and do you have chainfire's flashfire?
---------- Post added at 01:22 PM ---------- Previous post was at 01:07 PM ----------
I should have asked if USB was working before the sept update? I had a problem where the PC would recognize the device but couldn't run fastboot. This solved that problem but it sounds different than your issue
https://forum.xda-developers.com/nexus-5x/help/unlock-bootloader-fastboot-detecting-t3236946/page4
jd1639 said:
Are you rooted and do you have chainfire's flashfire?
---------- Post added at 01:22 PM ---------- Previous post was at 01:07 PM ----------
I should have asked if USB was working before the sept update? I had a problem where the PC would recognize the device but couldn't run fastboot. This solved that problem but it sounds different than your issue
https://forum.xda-developers.com/nexus-5x/help/unlock-bootloader-fastboot-detecting-t3236946/page4
Click to expand...
Click to collapse
USB worked fine, I am using it for Android studio, and transfered music across as well. Looked at the post and it seemed that has to do with device manager. Problem is mine does not show up any changes to device manager. I.e . No ADB or other device. Seemed like no data is exchanged and windows treating it like a battery or something
Any fix for this?
I've hit the same issue and wondering if anybody has a fix for this yet?
I'm using linux and seeing no usb activity at all from my nexus 5x after sep 17 update.
I've tried multiple cables. Cleaned the usb port on the phone. Multiple PCs.
I've connected to the phone using adb over tcpip and seeing nothing in logcat except battery logs when the usb cable is plugged in and out.
Turned usb debugging off and on.
I've set usb mode in developer options to mtp (it was on 'charging') and restarted the phone. Then find the option is forced back to 'charging.'
Logcat entries during boot show no failures in regards to usb connectivity.
Charging works fine but no data connectivity via usb at all.
Anyone got any other ideas?
Hello world.
I had the same issue.
To solve the problem :
- unlock developer mode
- switch on debug usb
regards
J.
I had this problem too- did not have to enable USB debugging though, just enabling the developer options fixed it for me. Which is odd because I definitely had them enabled previously... I guess a recent update reset that and for some reason all the USB data options are tied to developer mode now.
I've got 790 (american, as i know). The same issue, no response from service, guarantee, doesn't help, pc shows it as unknown device. some other bugs, mobile data fails, no sim detected after a few seconds, violet camera with no focus, but nice when the distance ia ok, so matrix works ok, but no stabilisation.
Then, bad battery, it seems that the bank ia ok, but controller works bad. it charges enough time to think that the capacity is not degraded. I suppose that usb controller (pc connection and fsat discharging) are nearby problems.
None of the above posts worked for me on my N5x (8.1.0 March), but searched some more and found this to work for me:
https://productforums.google.com/forum/#!topic/phone-by-google/DfpqXN1UfWY
Hello everyone. I'm just resurrecting this old thread so I can provide the solutions I have found to this problem. It appears this symptom has multiple causes, and there are different solutions depending on the cause. I have seen this problem twice now on my Nexus 5x (stock, no custom ROM) and solved it both times.
1. SOLUTION #1 - Messing with USB Configuration in Android
First time I encountered this problem, I did the following:
- USB Debugging was already enabled
- Enter USB Debugging menu
- Scroll down to "Select USB Configuration"
- Open this and select MTP, even if MTP was already selected. On my 5x, MTP was already selected, but selecting it again fixed whatever was broken, and the phone was immediately visible again in the Windows 10 interface when connected via USB.
2. SOLUTION #2 - ClockworldMod USB Driver was installed. Replace with Google driver
The second time I encountered this issue, the Solution #1 above did not work. Surprisingly, the adb devices command successfully detected the Nexus 5x. It's just that the phone wasn't showing up in the Windows 10 File Explorer interface.
The root cause of this problem was that I had installed the ClockWorldMod USB Driver because I was playing around with their Vysor App (on a different phone.)
BTW, I think the Vysor tool is really nifty for screen mirroring purposes!
To resolve the problem, I replaced the ClockWorldMod driver with the regular Google USB Driver.
(Sorry, XDA is not letting me post links because of my low post count. The link is:
h++ps://developer.android.com/studio/run/oem-usb.html )
The procedure is:
- Download the Google USB Driver from the link above and extract the ZIP.
- Enter the Windows Device manager
- Find 'Android ADB Composite Interface'
- Open the properties of 'Android ADB Composite Interface' and you will see it is from ClockWorldMod.
- Right click on this Interface and Select 'Update Driver'
- Click on 'Browse My Computer for Driver Software'
- Click on 'Let me pick from a list of available drivers on my computer'
- Click on 'Have Disk'
- Browse to the Google USB Driver you downloaded.
- Select that driver and load it on top of the ClockWorldMod driver. (Windows may claim that you've got the best driver already installed, but ignore that.)
After re-installing the Google driver, the Nexus 5x appeared immediately in the Windows 10 interface for file transfers.
Cheers, I hope this helps someone out!
I have the same problem with LineageOS 15.1, I am not sure since when, because I don't use USB that often, but I it must have been after the second update for 15.1. ADB and FASTBOOT don't work.
None of the suggested methods work. I am on Linux, but I also tested the USB driver solution on a windows PC.
The problem is, my phone does not trigger any response from the system I connect it to.
On Linux an lsusb/dmesg shows nothing, and on windows it doesn't make the classic "ding" when I connect something to the USB port.
It is like my phone isn't even there.
In the developer options under networking and USB, USB was set to charging only. I changed that to MTP, but it didn't help.
Now I can't change it back (not that I want to, but just saying). No matter what I press on this menu, it always stays on MTP.
I am here because of adb not connecting tho, MTP is not my concern anyways.
I am not sure what to do, format data, and wipe system etc. and go for a clean install? The problem is, when I boot into recovery, ADB and FASTBOOT don't work either, i.e. my computers don't see an USB connection. So will a wipe even help? I am scared I wipe my phone, and then I can't connect via ADB in TWRP.
Hello @ufopaper
Did you try to cleanup usb connector with a toothbrush and/or a soft plastic tool ?
Did you try different usb wire ? On multiple computers ?
tantalfr said:
Hello @ufopaper
Did you try to cleanup usb connector with a toothbrush and/or a soft plastic tool ?
Did you try different usb wire ? On multiple computers ?
Click to expand...
Click to collapse
I even bought a new cable, however, I didn't think about the toothbrush .. and yes, that was it
Thank you VERY much!
ufopaper said:
I even bought a new cable, however, I didn't think about the toothbrush .. and yes, that was it
Thank you VERY much!
Click to expand...
Click to collapse
Never underestimate the power of a toothbrush
Bamboo-Toolkit said:
1. SOLUTION #1 - Messing with USB Configuration in Android
First time I encountered this problem, I did the following:
- USB Debugging was already enabled
- Enter USB Debugging menu
- Scroll down to "Select USB Configuration"
- Open this and select MTP, even if MTP was already selected. On my 5x, MTP was already selected, but selecting it again fixed whatever was broken, and the phone was immediately visible again in the Windows 10 interface when connected via USB.
Click to expand...
Click to collapse
Amazing, this solved my problem. Thanks!

After installing 10.3.4 PFLMIXM global stable, usb thumbdrive not recognized

Does anyone have this problem? I used a USB stick on previous versions with no problem, but now after this new update the USB drive is not detected at all.
miwashi said:
Does anyone have this problem? I used a USB stick on previous versions with no problem, but now after this new update the USB drive is not detected at all.
Click to expand...
Click to collapse
Now there's an option to enable or disable the USB OTG function, you can find it in the settings. Try that.
It worked! Thank you.

USB Connect/ OTG disable

Hello,
I've got a SM-T813 and I ve got a problem with my usb port. I can neither connect to my PC or my usb-Rj45 since i installed TWRP and LineageOs.
I cannot select what to do when usb connection is detected.
I don't kown what's wrong. I changed the cable, re-install TWRP but i does not work.
Odin is not detected to.
Someone to help me please?
Thank you
ETNYBzh said:
Hello,
I've got a SM-T813 and I ve got a problem with my usb port. I can neither connect to my PC or my usb-Rj45 since i installed TWRP and LineageOs.
I cannot select what to do when usb connection is detected.
I don't kown what's wrong. I changed the cable, re-install TWRP but i does not work.
Odin is not detected to.
Someone to help me please?
Thank you
Click to expand...
Click to collapse
Your problem seems simular to what I had.
If you are sure the software settings are ok and that doesnt work, remove the backcover remove the battery connector, put it back again and see if that works. Does charging work?
HANSB57 said:
Your problem seems simular to what I had.
If you are sure the software settings are ok and that doesnt work, remove the backcover remove the battery connector, put it back again and see if that works. Does charging work?
Click to expand...
Click to collapse
Thats weird my s2 tablet has USb problems to. It stopped reading OTG usb connections and the PC. However it is always able to charge. I have noticed that when it does finally read on the PC it seems like the drives dont switch right and my battery wont charge. It got to the point I dont even try to plug it into a pc or USB otg just incase it quits charging I have SD card and twrp for installs so I use that instead. Most be a problem with the usb port and drivers.
Techguy777 said:
Thats weird my s2 tablet has USb problems to. It stopped reading OTG usb connections and the PC. However it is always able to charge. I have noticed that when it does finally read on the PC it seems like the drives dont switch right and my battery wont charge. It got to the point I dont even try to plug it into a pc or USB otg just incase it quits charging I have SD card and twrp for installs so I use that instead. Most be a problem with the usb port and drivers.
Click to expand...
Click to collapse
I dont know the answer nor the solution.
What I noticed however is that I used my tablet as an monitor for an USB web cam.
The problem (charging but not being able to connect to PC) started AFTER I removed the webcam.
The app I use (USB Camera Pro) has an option "remove camera safely"
If I use that option everything works fine but if I remove the cam cable without pressing this option I cant connect to my PC anymore and have to unplug the battery.
I am having a similar issue and would be grateful for help. My Tab T815 has a clean install of the latest Android 10 Rom and Pico Gapps via TWRP 3.4. All seem to be working great apart from the USB OTG. Specifically, I am trying to connect my DJI Mini drone controller and it's not registering it plugged in. I also have Android 10 on a galaxy S5 and have no issues at all when I connect the DJI controller to the phone. I have run a diagnostic app that says OTG is compatible with the T815 so am now at a loss on what to try next. Could this be an issue with the Rom?

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