I just loaded up my LG V20 with the AOKP android 7.1, I plugged in my USB OTG ( SD micro card installed in this) and it will not even power on at all. I rebooted into TWRP, and it works just fine there, I can read, mount and unmount, no troubles. booted to system, but no power at all to the adapter plugged into the usb-c / charging port. My reader is a couple of years old, do you think it might just not be compatible with my new phone? Is there a setting I might be overlooking to enable this to work? Any ideas as to if it might be a hardware of software issue? Thanks.
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Just bought a used Acer A500 tablet off Craiglist. I tested everything I could but didn't have a USB device with me.
It's now rooted, with unlocked ISC bootloader and flashed to Flexreaper's latest ICS ROM.
No matter what I do, I can't get any USB devices to work. I tried a wired USB mouse, a wireless 2.4Ghz mouse, mutiple USB flash drives, and my Canon DSLR camera and nothing works. Stone dead, no LED lights on the USB devices or anything. The primary reason I bought the A500 was for the full USB port and mine appears to be dead!
I've inspected the port with a flashlight and the pins do not appear to be damaged in any way. Does anybody have any ideas what may be going on? Any help would be greatly appreciated.
Martian21
martian21 said:
Just bought a used Acer A500 tablet off Craiglist. I tested everything I could but didn't have a USB device with me.
It's now rooted, with unlocked ISC bootloader and flashed to Flexreaper's latest ICS ROM.
No matter what I do, I can't get any USB devices to work. I tried a wired USB mouse, a wireless 2.4Ghz mouse, mutiple USB flash drives, and my Canon DSLR camera and nothing works. Stone dead, no LED lights on the USB devices or anything. The primary reason I bought the A500 was for the full USB port and mine appears to be dead!
I've inspected the port with a flashlight and the pins do not appear to be damaged in any way. Does anybody have any ideas what may be going on? Any help would be greatly appreciated.
Martian21
Click to expand...
Click to collapse
Make sure, when you install a custom rom, you do all the Wipes and Formats as required in the Original Post (OP). This is probably where you may have made a mistake, and you still have some leftover code from the previous rom.
Or, try installing a different Rom (after all wipes and formats of course).
In CWM....
Wipe:
1. User Data/Factory Reset
2. Cache
3. Dalvik Cache
Then goto Mounts and Storage
1. Format System
2. Format Flexrom
Then go back and install the Rom again or try a different Rom just to check. Remember, Flexreaper is a heavily modded rom, so sometimes, you might want to try something a little less modded, like EZ Terry's or Smaury's just to make sure the basics are working.
Then if you want, install Flexreaper.
MD
Flashed back to stock ICS today. Wiped everything, still no luck. "It's dead Jim"
This is really a bummer. I really like this tablet but I need USB host for viewing my photos from my camera. I'm going to have to sell it as is and take a loss.
What is an A500 in good condition with a dead USB port worth?
Martian21
The USB host only work with USB with FAT32 format, maybe your usb is NTFS , that might be a reason.
My AT&T sgh 1337 Galaxy s4 has been a great phone, it was Loki'd back before the bootloader lock OTA's hit and I've been running CM11's latest milestone releases.
Lately I have had issue with my USB jack. When I would plug it in, I would just get an Error code 43 Unknown Device in windows, no device detected in linux & mac. I tried 3 different USB cables. I cleaned out the USB jack, didn't help. I did notice the interior of the jack was a bit worn and torn. It charges fine.
I went ahead and ordered a new USB jack/microphone board, verified the new part is specific and exact to the sgh-1337 model and installed it.
Plugged into a charger and tested, charging works, ~1300 mah draw on a 1.4amp charger. Looks good.
Plugged into a PC and immediately got Error code 43 USB device unrecognized. Still doesn't work. I changed USB modes in Settings>Storage>menu and, nothing. I enabled and disabled USB debugging several times. I've tested my machine with all samsung & ADB drivers installed and fresh machines, nothing. (Windows made the USB connect/disconnect sound between switching modes every time)
I installed Drivedroid (very sweet app for hosting disk images over USB) and used its settings panel to change USB modes, every single USB mode reports error 43.
Booting up into Recovery and mounting USB mass storage mode, same thing Error 43.
Booting into Download mode: Error 43.
USB OTG cable with mouse plugged in: nothing.
Is it possible that the USB controller on my phone's main board died? I hope not, that's unfortunate. It'd be hard to find a bootloader-unlocked motherboard replacement.
I read that an HTC user had the exact same problem, he reflashed his bootloader image from SD card and BAM, usb came alive again. I don't think that'd be a possibility with a samsung device though... hmm. Bummer, anyone think they can help?
I appreciate you reading.
wow, sorry to here that--could be hardware, you did about everything you could do--
Here are Google links which I am sure you already looked into
https://www.google.com/?gws_rd=ssl#q=usb+code+error+43+fix
Wild ideas--wipe your internal, reformat external or boot without it
Odin the MDL tar back to stock, keeping same bootloader
Odin and upgrade to NC1 with new bootloader
Use wifi apps for transfers
Not much help I know--just throwing stuff out there--:good:
Good Luck
Worst case lots of new phones out this fall--
Hi folks I have a rooted N7 and have used plenty of different ROMs in the last 2 years. Since installing KK 4.4.4 I cannot connect to my computer by USB, neither Windows 8 or Linux.
OTG is working as I can access external USB cards, there is nothing wrong with the USB leads, needless to say I have tried different leads in different USB ports, the tablet still charges when connected by a USB cable.
In settings, storage has MTP activated, I have tried PTP and it still will not work.
In developer I have activated USB / Android debugging.
I am using multirom and have done so since it came out
My main rom is MAHDI 2.7
Secondaries areCM11 20140903 and pac_grouper-1-20140903
Any help would be appreciated.
Think it's solved
All my other Android devices connect with my computers by usb so I have to conclude that there is something wrong with the N& OTG port.
Perhaps my port has gone bad. Nothing works, otg , computer connection through mtp. It will charge though, whether connected to computer usb or charger. Only reason I have even noticed this , is a want to flash original software from lg tool. Anyone got any ideas? Or do I need a new usb board? I'm on cloudy 2.0. Oh btw, I tried to mount from twrp and nothing happens. Says unable to mount otg device. I assume that rules out it being a rom problem? I've tried two different otg devices, and three different cables to my computer. I'm beginning to think it's hardware issue. But before I go through all that figured I would see if anyone else has any ideas?
I'm having this same problem. I first noticed it when I installed cloudy-g3 on my lg g2. The problem persists even when I switch to other roms I have installed with MultiROM. Without the ability to detect/access via usb/adb my phone is semi-bricked, without the ability to revert to stock via kdz because usb connection isn't detected.
Hi,
USB OTG on my Verizon Droid Turbo 2 with Android 6.0 is not working with any USB device I've tried including mouse, keyboard, or thumb drive. The DT2 doesn't respond nor even appear to supply power to any of the devices I attach.
The DT2 Micro-USB otherwise works for charging and connecting to my PC. I've tried multiple cables listed on Amazon as "(10-Pack) BuyCheapCables 6" Micro-USB OTG (On The Go) to USB 2.0 Adapter Cable" that have worked well for me in the past.
I ran the app USB OTG Checker from Google Play with USB OTG System Result = "Your Device OS has USB OTG API !" and USB OTG Signal Result = "System NOT Detect USB OTG Signal"
Frustratingly, youtube videos seem to show OTG success in similar scenarios. So, please any advice would be appreciated...
I'm having a related problem. Otg-usb works when phone is booted normally but when in recovery with TWRP 2.8.7.1 I try to back up my device, I see otg-usb, but can not select it as the target destination. It is formatted Fat32. I try to reformat it in TWRP and it can't write to the media. Get an error to that effect. Note5 MOAR Rom 5.1.
Sent from my SM-N920P using XDA-Developers mobile app
Mediatech1 said:
I'm having a related problem. Otg-usb works when phone is booted normally but when in recovery with TWRP 2.8.7.1 I try to back up my device, I see otg-usb, but can not select it as the target destination. It is formatted Fat32. I try to reformat it in TWRP and it can't write to the media. Get an error to that effect. Note5 MOAR Rom 5.1.
Click to expand...
Click to collapse
My issue seems hardware related in that any USB device I try to connect gets no response or power from the phone.
I spoke to a few sources on this and most helpfully went to my local VZ and tried on another DT2. Looks to have worked and I'm hoping the new DT2 they're sending me will solve it. A Samsung S7 also worked.