Database Develop

Problem with OTG&USB N950F

Hi everyone
here I've got a terrible issue with my note 8 and SAMSUNG USB OTG.
When I connect my otg and a flash memory to phone, nothing happens, unless you force restart the phone while the otg is connected. After booting I can access to my flash memory but after removing the otg and reconnecting it, again nothing happens unless force restarting.
I've tried everything possible. Downgrading, upgrading, 4 files rom, pit file, rom from different zones, but still have the problem. I have no other issues regarding the USB port and charging, fast charging, connection to computer and any other stuff works fun but this OTG.
I wanted to know if anyone have any solutions for my problem or if anyone had the same issue or not.
it is also worth to mention that I have not rooted my phone due to warranty issues, and for that I haven't tested any kernels.
thanks for everyone
Sent from my SM-N950F using Tapatalk

That isn't right... As soon as I plug in my OTG USB key it detects it, no restart required.

alex00006 said:
Hi everyone
here I've got a terrible issue with my note 8 and SAMSUNG USB OTG.
When I connect my otg and a flash memory to phone, nothing happens, unless you force restart the phone while the otg is connected. After booting I can access to my flash memory but after removing the otg and reconnecting it, again nothing happens unless force restarting.
I've tried everything possible. Downgrading, upgrading, 4 files rom, pit file, rom from different zones, but still have the problem. I have no other issues regarding the USB port and charging, fast charging, connection to computer and any other stuff works fun but this OTG.
I wanted to know if anyone have any solutions for my problem or if anyone had the same issue or not.
it is also worth to mention that I have not rooted my phone due to warranty issues, and for that I haven't tested any kernels.
thanks for everyone
Sent from my SM-N950F using Tapatalk
Click to expand...
Click to collapse
did you take the device correctly? download the strip and remove the sorage USB and reconnect

ultramag69 said:
That isn't right... As soon as I plug in my OTG USB key it detects it, no restart required.
Click to expand...
Click to collapse
So thanks god you don't have this terrible issue, but in your idea what's wrong with my phone? cause I connect the usb nothing happens
Sent from my SM-N950F using Tapatalk

would it make any difference to enable the usb debugging in developer options maybe

j_hansen said:
would it make any difference to enable the usb debugging in developer options maybe
Click to expand...
Click to collapse
allow file transfer .... possible

Nope, I have developer options enabled but debugging isn't on. never had to enable file transfer.
When I plug in the OTG device I see a usb icon in the notification panel. Swipe down and pick explore. Mind you it only opens in the stock file explorer, I did have another file explorer that picked it up too but can't think what it is and it has been lost myriad of other apps I test and play with...
Just be aware that it may take a few seconds to scan the device,depending on size, and then display the icon.

ultramag69 said:
Nope, I have developer options enabled but debugging isn't on. never had to enable file transfer.
When I plug in the OTG device I see a usb icon in the notification panel. Swipe down and pick explore. Mind you it only opens in the stock file explorer, I did have another file explorer that picked it up too but can't think what it is and it has been lost myriad of other apps I test and play with...
Just be aware that it may take a few seconds to scan the device,depending on size, and then display the icon.
Click to expand...
Click to collapse
I test another file manager with OTG
example solid manager or Es ....and not work for me
also I waiting 5minute but not work ...
Only force restart and after
boot phone I see icon otg in notification panel.
And when connecting OTG only charge device enabled for me
Sent from my SM-N950F using Tapatalk

i know it sounds weird but from past experience flaky USB drives are more trouble than they are worth, from first hand experience i know patriot, corsair and sandisk work well as OTG drive
also you neglected to mention the file system the USB was formatted with, i believe only FAT, FAT32 and exFAT are supported

SteelPicori said:
i know it sounds weird but from past experience flaky USB drives are more trouble than they are worth, from first hand experience i know patriot, corsair and sandisk work well as OTG drive
also you neglected to mention the file system the USB was formatted with, i believe only FAT, FAT32 and exFAT are supported
Click to expand...
Click to collapse
I use USB SanDisk (USB3 ) and format fat32
Sent from my SM-N950F using Tapatalk

also possible that the phone doesn't like your OTG adapter. I bought a usb 2.0 to type C adapter which doesn't even work on the phone - when I plug it in usually the moisture sensor error comes up saying water is in the device and I should let it dry. Unplug the OTG and the error goes away.
So... I bought a USB 3.0 A to type C OTG adapter and that one works fine with everything I've tested (usb flash drives, keyboard, usb ethernet adapter, etc)

I believe the USB-C to USB-A adapter that came with the phone is actually an OTG adapter (tested xbox360 controller and keyboard)
I also believe that the note8 can host usb flash drive native (no need for OTG cable) as i have a dual head USB-C and USB-A flash drive which is recognized once the USB-C end is plugged in

bassgenerator said:
did you take the device correctly? download the strip and remove the sorage USB and reconnect
Click to expand...
Click to collapse
I'm test with any OTG cable or.....not work
also reconnect and again connected but no answer
only with force restart

Sorry to dredge up a semi old thread, but has anyone found a fix for this?
I'm having almost the same issue, I finally decided to try out the OTG adapter from the box and nothing works, it isn't even recognized. Tried ps4 controller, mouse, keyboard 2 different thumb drives. Can't figure out what the deals is.
Other than that pc connection seems to work and charging works fine. TIA

I'm having a similar problem. A month ago, used both OTG adapters (original from Samsung and a generic one) it detects my memory sticks as a hard-disk and was able to manage my files. But since a couple of weeks ago it does not detect them anymore. Is like it did not supply charger to them anymore. I have tried the USB debugging menu and no difference at all. Even I got back to factory reset expecting to solve the issues but nothing happened. The port as such is working perfectly because I'm able to charge through it. On the other hand, Samsung DEX is not working as well. It just charges the phone but never boot-up.
I'm just waiting for Oreo and hopes this will sort the problems out.

Pechan_uvas said:
I'm having a similar problem. A month ago, used both OTG adapters (original from Samsung and a generic one) it detects my memory sticks as a hard-disk and was able to manage my files. But since a couple of weeks ago it does not detect them anymore. Is like it did not supply charger to them anymore. I have tried the USB debugging menu and no difference at all. Even I got back to factory reset expecting to solve the issues but nothing happened. The port as such is working perfectly because I'm able to charge through it. On the other hand, Samsung DEX is not working as well. It just charges the phone but never boot-up.
I'm just waiting for Oreo and hopes this will sort the problems out.
Click to expand...
Click to collapse
That sounds like a bodged port to me man
Is there any dust or dirt in there that you can see?
I really don't think Oreo's gonna fix that for you

Ripthulhu said:
That sounds like a bodged port to me man
Is there any dust or dirt in there that you can see?
I really don't think Oreo's gonna fix that for you
Click to expand...
Click to collapse
Seems to be a little bit dusty. Anyway, the other thing is that, when the Usb is detected it ask to choose between transfer files, images, midi device and so on, even if I choose "transfer files" mode it always get stuck as "charge connected device".

Hi i have the same problem... my note 8 can connected mith my notebook, but my otg with an usb stick cant recognize my note8. I test the same otg with usb stick on my friends phone example S8 and it detects promptly all.
I hope the fixing take not long time. I waiting for help. Greets

Well, adding one more case here, my native file manager doesn't recognize any memory connected via the original otg conector, but, using x-plore file manager, problem solved, as I use x-plore since my symbian days, I never gave this issue much importance, this problem was present also with my note 7

cleric05 said:
Sorry to dredge up a semi old thread, but has anyone found a fix for this?
I'm having almost the same issue, I finally decided to try out the OTG adapter from the box and nothing works, it isn't even recognized. Tried ps4 controller, mouse, keyboard 2 different thumb drives. Can't figure out what the deals is.
Other than that pc connection seems to work and charging works fine. TIA
Click to expand...
Click to collapse
This. I have exactly the same experience. I bought a couple of months ago a new Note 8, and finally decided to try the OTG adapter that came in the box. Nothing worked. I tried the adapter with a friends phone and it worked like magic (USB drives, mice, keyboards, controllers, etc.).
Would really apreaciate if anyone can provide help on this issue... Cheers!

AA - need help isolating issue

Hey all,
I have a Oneplus 6 running XXX Rom and a 2018 Fiat 500X with the factory Android auto head unit.
My wife has an LG G6 that is stock.
With my phone, I have to clear android auto data and cache every time I want to use the app. If that doesn't work, I have to delete the app and re-install it. If I don't do this, Android auto won't start up. If I don't go through this process and just plug the phone into the headunit via the USB cable, the headunit just thinks it's a USB storage device and tries to play music from the phone, only to display, 'device not supported', on the screen.
My wifes LG G6 works almost every time, but is very very picky with which cable we use. If we use the cable supplied with her phone, AA will drop out after a few minutes. If we use the OP6 cable that came with my phone, it will stay connected for the entire trip.
Based on the fact that it works with her phone, I'm guessing that the issue is with my phone. How do I fix it?
Sometimes, my phone will tell me that AA is connected and running, but there will be nothing on the headunit.
Anything I can try?

What does the dealer/dealer support suggest for these Fiat issues?

marchnz said:
What does the dealer/dealer support suggest for these Fiat issues?
Click to expand...
Click to collapse
Haven't approached dealer as I would like to determine where the fault lies first. Pretty sure it isn't the unit though, as other phones work fine.
I have MIDI selected on the OP6, with USB debug on. I think I have tried everything and it just won't connect more than once per install.

USB data transfer not working.

So i bought a used A2 for 5500 INR.
At first i thought it was a bargain but soon it turned out to be a nightmare.
The phone is full of bugs.
Worst one is that the phone only charges through the usb port. No data transfer of any sort. like an old nokia pin charger.
OTG doesn't work. It doesn't connect to the PC.
Whenever I plug in the OTG/connect it to pc, the usb options are all greyed out (same in the developers options default usb preference).
I can't even use Gcam now bcoz the PC doesn't recognise the device at all, so can't enable Camera2api, can't root, can't install ROMS... can't even buy a new phone cuz i have no money ???
turns out my phone also have the slow Emmc issue ?....read speeds are okay but write speeds are very slow... specially Random write (~10mBps).
I read many people have faced this issues. All those Posts are old, has anyone found a solution.

gareebuser619 said:
So i bought a used A2 for 5500 INR.
At first i thought it was a bargain but soon it turned out to be a nightmare.
The phone is full of bugs.
Worst one is that the phone only charges through the usb port. No data transfer of any sort. like an old nokia pin charger.
OTG doesn't work. It doesn't connect to the PC.
Whenever I plug in the OTG/connect it to pc, the usb options are all greyed out (same in the developers options default usb preference).
I can't even use Gcam now bcoz the PC doesn't recognise the device at all, so can't enable Camera2api, can't root, can't install ROMS... can't even buy a new phone cuz i have no money ??
Click to expand...
Click to collapse

gareebuser619 said:
So i bought a used A2 for 5500 INR.
At first i thought it was a bargain but soon it turned out to be a nightmare.
The phone is full of bugs.
Worst one is that the phone only charges through the usb port. No data transfer of any sort. like an old nokia pin charger.
OTG doesn't work. It doesn't connect to the PC.
Whenever I plug in the OTG/connect it to pc, the usb options are all greyed out (same in the developers options default usb preference).
I can't even use Gcam now bcoz the PC doesn't recognise the device at all, so can't enable Camera2api, can't root, can't install ROMS... can't even buy a new phone cuz i have no money
turns out my phone also have the slow Emmc issue ....read speeds are okay but write speeds are very slow... specially Random write (~10mBps).
I read many people have faced this issues. All those Posts are old, has anyone found a solution.
Click to expand...
Click to collapse
Try to reset the phone and then check the same and you can always use adb over wifi when phone is turned on incase u need but for fastboot u need cabel anyways try installing the correct adb and fastboot drivers check and delete old drivers tis may fix it or take to local shop

KevMetal said:
gareebuser619 said:
So i bought a used A2 for 5500 INR.
At first i thought it was a bargain but soon it turned out to be a nightmare.
The phone is full of bugs.
Worst one is that the phone only charges through the usb port. No data transfer of any sort. like an old nokia pin charger.
OTG doesn't work. It doesn't connect to the PC.
Whenever I plug in the OTG/connect it to pc, the usb options are all greyed out (same in the developers options default usb preference).
I can't even use Gcam now bcoz the PC doesn't recognise the device at all, so can't enable Camera2api, can't root, can't install ROMS... can't even buy a new phone cuz i have no money ??
Click to expand...
Click to collapse
I had the exact same issue only charged and no data transfer or otg I'm computer it shows device description error but headphones worked fine I went to a mi service center and changed the usb port for rs.700 now it works like charm must be a water damaged sub board don't get cheap replacement from Amazon coz they only charge the phone and they miss out fast charging ic
Click to expand...
Click to collapse

I am also facing same issue. Can't transfer data using USB Cable

USB Data Not Working

Hello,
I have a Xiaomi Mi 9T Pro phone on which USB data transfer stopped working. Neither connecting the phone to the computer, nor connecting a USB OTG device work (although fast charging works fine). I'm not sure when it happened, however I think I updated the firmware/vendor sometime around then. Also, I'm running the latest Arrow OS 11 (which is quite out of date now..) I tried changing the board with the USB port but to no avail. I've also tried multiple USB cables, which I confirmed to work on another device. I even tried booting the phone into EDL (as well as fastboot) mode, however device manager doesn't recognize the device (and I doubt it's the drivers as it would probably result in the device appearing as QHSUSB_BULK, not "device descriptor request failed").
Has anyone dealt with such a problem before? Could it be caused by bad vendor/firmware? Or is it a hardware issue, which could be diagnosed? Perhaps the custom ROM could be somehow safely updated without a USB connection (with it being necessary to format data)? Thanks for any help!

Did you ever find the solution for your issue? I have a very similar problem, which appeared as far as I can remember without having done any updates before:
On my Mi 9T Pro I can slow charge (very slow, complete recharge takes 8+ hours), but I do not get working quick charge or a working usb connection.
I had the same problem a while back which was solved by changing the USB board. This time however, I have changed the USB board multiple times (at first I thought the new board was faulty) but I did not help.

muellermeierschmidt said:
Did you ever find the solution for your issue? I have a very similar problem, which appeared as far as I can remember without having done any updates before:
On my Mi 9T Pro I can slow charge (very slow, complete recharge takes 8+ hours), but I do not get working quick charge or a working usb connection.
I had the same problem a while back which was solved by changing the USB board. This time however, I have changed the USB board multiple times (at first I thought the new board was faulty) but I did not help.
Click to expand...
Click to collapse
Hello, I have similar problem. USB OTG doesn't work at all (in custom recovery or in rom). I guess changing USB charging port may help... but I'm not sure. Did you manage this problem? (I have other two 9t pro which works so it's not problem with USB cable).

P30 PRO not working Android Auto - Wired

Hello,
I have a Huawei P30 Pro sw EMUI 12.0.0.134(C461E1R1P2) VLOG-L29 and I cannot connect to Android Auto (Mercedes Benz). the problem must be an incompatibility of P30 PRO since the AA works fine with other Phones.
I've reset Mem&cache of AA App, updated the AA SW version and the other Apps. Also testing developer AA menu optons.
I have come to connect sometimes with difficulty to AA car but I am not able to find a pattern so that it works well continuously. When I try to connect again it doesn't work.
My AA version is 8.3.624134.
I am surprised that there is no posts about it since I imagine that Huawei phones will have many compatibility problems with AA.
Anybody can help me?
BR
Jorge

Works fine with Dacia AA(wired). Don't have a MB to test...same version AA
Did it work with EMUI 11?

Now I can connect. I've done three actions:
1. Buy a new official cable.
2. Update all the Apps. It's important that Google assistant works well.
3. In developers menu, tick on developer mode.
Now AA works fine but sometimes it disconnects. Maybe I have to revise battery savings App conf., or the screen must be ON all the time. I don't know ..

I've used P30 pro for both wired and wireless AA without any problem for more than year. So .
- You dont need official Huawei USB cable, any decent cable will do. I believe that was your problem, bad cable
- Updating all apps is in general good thing to do, but it doesn't influence connection with AA at all
- Forget developers mode, please . No need to think about it, and you actually may harm your phone by playing with it. It doesn't have any influence on AA
Enjoy AA in your vehicle

draskome said:
I've used P30 pro for both wired and wireless AA without any problem for more than year. So .
- You dont need official Huawei USB cable, any decent cable will do. I believe that was your problem, bad cable
- Updating all apps is in general good thing to do, but it doesn't influence connection with AA at all
- Forget developers mode, please . No need to think about it, and you actually may harm your phone by playing with it. It doesn't have any influence on AA
Enjoy AA in your vehicle
Click to expand...
Click to collapse
I completely agree with your appreciations. I’ve forgotten using developers mode and it seems to work. I bought a high quality cable and I cleaned the USB-C connector.
Currently I only have a problem: disconnections every few minutes (variable from 2-10 minutes). I am testing some things: AA permissions, non Battery savings, always on of the screen … but I can't find a pattern. Any idea what can be the problem? Does it happened the same to you with your P30 PRO wired to AA?
BR

I've switched to S22U last two months, so i cant share fresh experiences, but i can say that i haven't had any disconnection issues while P30p was not moving while connected to car.
But, when i moved phone for any reason, it would lost connection occasionaly. I've concluded that was caused by weak connection, and haven't investigated it further.

well, In my case it seems to be a cabling problem. I bought 2 high-quality cables, 1-meter long and 2-meter long. I had tested the shorter one. This morning I tested the longest one and my P30 isn't able to connect AA.
I'll buy a shorter cable (0,3 or 0,5m) in order to test again..