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[Q] Hdmi out and unresponsive screen?

I have a very strange issue.
I have rooted + bootstrap/cwm, 5.5.1-edem-28.
Issue is, when ever I plug only the hdmi or hdmi+charger in, the screen basiccally refuses to work with touch.
But if I plug hdmi+usb (to laptop etc), touch works perfectly fine.
Does anyone have any idea what could be causing this?
Rom is basically stock except removing some Telecom apps and moto-chinese/english keyboard.
I may reflash system to see if any of the keyboard apps were required... But still strange....

Well.... I flashed and wiped completely back to stock. (grrrrr)...
No change, still only have touch response with hdmi only if usb laptop plugged in.
Not, even, with, ps3 usb plugged in...

[Q] USB Device not recognised [SOLVED]

I'm suddenly getting this issue when I plug my tablet into a Windows PC (have tested on two different PCs). I get a "USB Device not recognised" pop up.
More info:
1. happens on both the direct tablet and dock connections
2. have tried 2 USB cables
3. seems to be around the time I updated to .30 but there is no way I can attribute it to this, probably a co-incidence
4. I've done a factory reset and reloaded the .30 firmware from scratch
5. It does still charge though with the AC adapter
I really don't want to RMA the tablet but it seems that is the only way.
Has anyone seen this issue before? Does anyone have any other suggestions?
I'm going to try roll back to .26 but I'm suspecting that it must be a hardware issue.
I could probably live with this, but need to have the PC connection for transferring large files and for adb / flashing etc.
EDIT: seems that it is not possible to do a downgrade from .30 to .26 via the SD card method (let's call it the official method). This might be a .30 issue, I can't tell..

Not an expert here.
Would reloading the PC drivers and enabling USB debugging make a difference?

Thats OK said:
Not an expert here.
Would reloading the PC drivers and enabling USB debugging make a difference?
Click to expand...
Click to collapse
Thanks, I have tried that It flashes up the message immediately when plugging in - on multiple PCs. USB debugging seems to make no difference either. I've isolated the cause to be the tablet itself, not the PC. I'm going to try on another PC later.

Mine wouldn't connect last week for some reason.
I unplugged it and removed the micro SD from the tablet plugged it back in and it showed up.
Weird thing...not sure why it did that.
Hope you can get back from USB Hades there.

So it turns out that the Jelly Bean update fixed my problem - for those in future who may encounter this issue. I'm quite glad that I don't need to RMA the device. I can't understand how even over a full reset and reflash of the .30 firmware the problem was not resolved. In any case, I'm just glad to have a 100% working tablet again! Hooray

[NVIDIA SHIELD] HDMI not detected when connected to Sony Android TV

Hello.
I have NVIDIA SHIELD K1 tablet and Sony KD-55S8505C TV (with Android TV on-board). I wanted to play some games within streaming feature. It works fine, but the problem is when I want to use HDMI to display the image on my TV. Once I connect the HDMI-miniHDMI cable, nothing happens... I tried to manually change the display mode to console, but I'm getting a message that HDMI is not connected.
After this I tried the HDMI with other TV and it works correctly. But my Sony is a new one, all HDMIs work fine (I tried them with Blu-ray player and my laptop).
I also tried restarting my tablet and TV many times (I found out it helps sometimes for ppl).
Is there any other thing I can check? No idea what to do.

@up

Nickon said:
Hello.
I have NVIDIA SHIELD K1 tablet and Sony KD-55S8505C TV (with Android TV on-board). I wanted to play some games within streaming feature. It works fine, but the problem is when I want to use HDMI to display the image on my TV. Once I connect the HDMI-miniHDMI cable, nothing happens... I tried to manually change the display mode to console, but I'm getting a message that HDMI is not connected.
After this I tried the HDMI with other TV and it works correctly. But my Sony is a new one, all HDMIs work fine (I tried them with Blu-ray player and my laptop).
I also tried restarting my tablet and TV many times (I found out it helps sometimes for ppl).
Is there any other thing I can check? No idea what to do.
Click to expand...
Click to collapse
Did you ever solve the problem? Mirror mode worked on one of my TVs but not another TV.

Yes. There was a problem with my TV's HDMI ports. Something on motherrboard was broken. I sent it to Sony service and they repaired everything. It has worked like a charm since the first use.

Nickon said:
Yes. There was a problem with my TV's HDMI ports. Something on motherrboard was broken. I sent it to Sony service and they repaired everything. It has worked like a charm since the first use.
Click to expand...
Click to collapse
Console mode works but not mirror mode so HDMI port is fine.

To me it is happening that my nvidia shield tablet does not recognize when I connect the HDMI. I did a hard reset and everything works perfect again, but after a few days, unchanged nothing stops working again. I did the test with different cables, different adapters HDMI-MiniHDMI and with different screens but I always have the same result unless I make a factory reset again.

Maybe some app, update interferes with HDMI..
Deactivate auto updates in Play store and for Nvidia.

Device charges but does not recognize USB data transfer

Hello all,
I'm fairly new to this phone but I have been loving it so far. I've had a few issues with it, which most have been resolved (such as the phone defaulting to loudspeaker on phone calls).
Now my biggest issue is the USB connection. I first noticed it when I used to llug the adapter in for my headphones. The port worked great for a time and then I believe it was a security update that was released which seemed to jack it all up. Now I cannot use the port in the bottom of the phone for anything other than charging. Cannot use the headphones, cannot plug in my drone mavic pro (requires the phone app for on-screen first person flight), and I cannot plug the phone into the computer for data transfer.
I have pulled out the book of from my IT troubleshooting days and tried these solutions with no luck.
•various USB cables
•went into settings while phone was physically connected to the computer under connected devices, the USB section was greyed out stating not connected.
•checked in developer options us debugging on and off. I tried both ways for good measure.
•checked USB configuration type. I tried MTP, PTP, and RNDIS.
Any ideas?

greasydego said:
Any ideas?
Click to expand...
Click to collapse
I recently had similar USB symptoms on my Pixel 2 XL after the March security update. Also tried it in safe mode and tried factory data reset, but neither helped. I asked Google to replace the phone. Replacement works great, even after March security update.

Umm..I just recently had this issue. TBH I used a 3rd party cable but until last week it could 1. fast charge and 2. transfer data (included adb/fastboot), now however it does only charge, no whatsoever signs of connected device. Bought a new one, it does charge, sync(fastboot, adb,..), no fastcharge but ok.

Have you tried reflashing the March ROM (with the -w removed)? I'm running the March update (did the February too back in February) and I can still enable MTP (I just don't like that it doesn't stick in Oreo - coming from KitKat, that was - and still is - annoying.)

So I tried flashing the March update again and still had no luck. March update was a security update so whatever they did it must be in the coding. I got a warranty replacement for the phone and it works fine. I'm able to do data transfer and fast charging. I was very reluctant to install the March update again but after ignoring the notification for about a week, I installed it and it is working fine.
I talked to Googe about the issue and they said that the bug was fixed but for those phones that had the firmware installed, it has the issue permanently installed. The only option would be to replace the device.

My S10e can't connect to PC through USB

Hi, I have a S10e T-Mobile which runs Snapdragon. When i used my phone on May security patch, the phone was okay. I can connect it to my pc without any problem. But yesterday, when i update it from May patch to September security patch then when plug it to my pc, the phone shows only charging. I even try to go to download mode and odin can't recognize the phone as well.
Yeah, yesterday on May patch i plugged my phone once and still okay til i updated my phone to lastest update. Anyone has the same problem?
Update: I changed my phone case and the phone now can connect PC and charging faster than before. Maybe the cheap phone case is the problem.
Update 2: After October patch, the problem now comes back. T-mobile forced me to install so i think after a few week the problem will be gone
Update 2022:The problem now is gone, i tried serveral update and I can't trigger the bug anymore. Thanks everyone.

If it doesn't show on Odin, you're screwed. The only way is to report and wait for an update. Have you considered doing the common steps?
Another USB cable? Another PC? OTG? Fast charging? Port clearance of any obstacles? Reboot? Wipe cache? Factory reset? Safe mode?

Mohamedkam000 said:
If it doesn't show on Odin, you're screwed. The only way is to report and wait for an update. Have you considered doing the common steps?
Another USB cable? Another PC? OTG? Fast charging? Port clearance of any obstacles? Reboot? Wipe cache? Factory reset? Safe mode?
Click to expand...
Click to collapse
Yeah, i try everything like:
- Clean usb C port but it has only some dust and still can't do anything after that
- I have about 5-6 usb C cable and i only use one. The others are all new, i just buy them about 1 month ago. My redmi note 7, redmi 8A... still can connect but not my S10e
- I try other PC but it couldn't recognize my phone
- Disable fast charging but still can't connect
- Reboot, clean system cache, factory reset but nothing changes
Maybe new update just broke the ability to connect usb?

The bug may not affect me much because i use FTP and cloud services but may be for another it'll be a huge problem.

Ga_hap_la_chanh said:
Yeah, i try everything like:
- Clean usb C port but it has only some dust and still can't do anything after that
- I have about 5-6 usb C cable and i only use one. The others are all new, i just buy them about 1 month ago. My redmi note 7, redmi 8A... still can connect but not my S10e
- I try other PC but it couldn't recognize my phone
- Disable fast charging but still can't connect
- Reboot, clean system cache, factory reset but nothing changes
Maybe new update just broke the ability to connect usb?
Click to expand...
Click to collapse
Yeah you're totally screwed. That update was definitely bugged. The only thing you can do is to file a report through Members app and wait for a hotfix.
I got a semi-new device that was working great, on One UI 3.1, but once an update came, I updated the phone, and ever since, the green tint problem showed up.
If I ever bought another Samsung phone, I'll never update it. The only exception is through custom ROMs.

Try this:
1. You basically need to perform hard reset on the phone while S10e is connected to the PC through a USB-C cable
2. To perform the hard reset press POWER + VOLUME DOWN at the same time until system shuts off
3. Now it would either reboot on its own or you would need to reboot yourself
I tried this as my phone was neither charging nor connecting to PC (error about something wrong with my phone's USB)

Ritesh10 said:
Try this:
1. You basically need to perform hard reset on the phone while S10e is connected to the PC through a USB-C cable
2. To perform the hard reset press POWER + VOLUME DOWN at the same time until system shuts off
3. Now it would either reboot on its own or you would need to reboot yourself
I tried this as my phone was neither charging nor connecting to PC (error about something wrong with my phone's USB)
Click to expand...
Click to collapse
Hi, now my phone can connect to pc okay, charging is fast but otg still can't work. I can confirm that otg works fine with my 3 other phones.
When i changed my phone case to a brand one, Ringke, usb now works. I just don't know why

Ga_hap_la_chanh said:
Hi, now my phone can connect to pc okay, charging is fast but otg still can't work. I can confirm that otg works fine with my 3 other phones.
When i changed my phone case to a brand one, Ringke, usb now works. I just don't know why
Click to expand...
Click to collapse
Welcome to the world of Samsung Galaxy phones, amazing hardware with weird software bugs

Ritesh10 said:
Try this:
1. You basically need to perform hard reset on the phone while S10e is connected to the PC through a USB-C cable
2. To perform the hard reset press POWER + VOLUME DOWN at the same time until system shuts off
3. Now it would either reboot on its own or you would need to reboot yourself
I tried this as my phone was neither charging nor connecting to PC (error about something wrong with my phone's USB)
Click to expand...
Click to collapse
I have the same issue on a G970F. Unfortunately the POWER + VOLUME DOWN method didn't work. Am now wondering if there's a hardware issue. My other G970F is fine. Both are running LineageOS 18.1.