So ive got back from work, and plugged my Motorola defy into my p.c for its usual charge and - "USB device not recognised" followed by any other usb device failing/malfuntioning.
ive just tried it connected to another p.c (XP) and that says power surge on usb hub.
the Defy is not acknowledging any usb connection at all, but will charge from its mains charger.
ive tried re-setting it, re booting both the p.c and the phone, but all i can get is device not recognised.
this is an un-rooted standard defy, running the 2.51 firmware android2.1, as it came out of the box.
help.
Does this look like a return item or is it a software bug?
up until now I havent had any problems at all.
maybe your usb cable has a problem?
Related
Hey,
May I unroot HOX without USB? I actually have USB but something went wrong with pins so phone can just charge. After connecting to PC phone doesn't indicate anything, it just charges. Computers says that it found any USB device which couldn't be recognized. I have all drivers. Yesterday everything worked well. Tried another cable and computer. HTC Sync also doesn't see phone.
Now I'm using CM 10.2. Phone base is 3.14.401.31, CID__032.
When I had Desire I unrooted it just by flashing zip file via bootloader from SD card. Now I did't find similar option
Edit - I tried to put some ethanol to pins and now phone indicates USB, computer recognizes phone but just for 5 seconds. After that it again writes unknown USB device.
When I plug my handset to ANY computer (with, without kies or drivers, it doesn't matter) the phone charges, but, nothing appears on the computer (no unknown device or recognizing the two drives of the phone, but not mounting them (as it did before)) on the phone.
The "USB" icon doesn't prompt and if I go to settings/wireless and network/ USB utilities, when I touch the USB mass storage button, it prompts me to connect cable, which is already connected.
-USB debug isn't activated (I've tried both)
When my phone is powered off and I start to charge it, the charging screen doesn't prompts, It just start booting.
I've tried different USB Cables.
The Phone is Official Stock Never Rooted (I discovered this trying to root it today)
Am I SOL if I want to root it without a working USB Data port?
Any ideas?
i would say make sure there's no dust/ buildup in the port. I had connection issues once to find a pocket lint cramed in there. next do all the other stuff. uninstall/reinstall drivers, diff usb port, diff pc, reboot. My symptoms were similar to yours but i was able to reboot into recovery/bootloader and use adb/fastboot no prob, so not sure. and I was already rooted/twrp recovery. might be worth it to try fastboot in bootloader just to be sure and get a recovery on it asap. If that works you should be able to recover stock or flash whatever, then test usb again in diff pc with fresh kies install. good luck.
Sounds like bad/improper USB cables to me, not all USB cables support data and charging, make sure you're using an official Samsung USB cable.
If you have a friend with a Samsung smart phone ask to try their cable.
Hi everyone,
I'm not sure if it's just me being a noob or if there is something borked on my P6 but I cannot for the life of me get any of my computers to recognise my P6 when I connect it via USB. I have installed the Mobile Drivers and have also tried putting it into USB Debugging mode but the computer doesn't see the phone. It does, however, charge it via USB but I get nothing else saying I'm connected and HiSuite also reports me as not being connected. Any ideas?
Ok, this is solved. Apparently, the phone's USB cable and another that I tried did not work with the phone but I swapped out to a third cable and it works fine.
Today I first used an OTG adapter, after last week OTA update, but to my surprise it no longer works.
I've tried with a couple of different adpaters, with mouse and USB drive that previously worked, but neither one works now.
Can anyone confirm? I'm on stock 2.20.40.58, bootloader locked, no root.
EDIT: Now it seems that my phone isn't even recognized in my PC ( I'm at work at the moment, and I used a couple of generics microUSB cables, with the same results ), only charging works fine. Did something broke? Or it is just me
I'm on the same firmware version and I can confirm that USB OTG works. Also the phone and external memory card are detected when a USB cable is plugged. in(tried 2-3 generic cables as well as the ASUS cable). You may want to update your USB drivers for the PC to see if the phone gets recognised.
N15H4NT said:
I'm on the same firmware version and I can confirm that USB OTG works. Also the phone and external memory card are detected when a USB cable is plugged. in(tried 2-3 generic cables as well as the ASUS cable). You may want to update your USB drivers for the PC to see if the phone gets recognised.
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Click to collapse
Thank you, now I'll check it more thoroughly when I get home.
I've managed to replace the USB board, and now OTG USB is working back, the phone is recognized on PC, but says "Device descriptor request failed" (I've tried with W10 on two different PCs, same results). A thread in ZenTalk mentions the issue in a Zenfone 5, but did all with no resukts
I was trying to transfer some files to my phone through a USB cable today, but the phone was not recognized by the PC at all (Even though it was working a week or so ago). I had some issues before with the cable needing to be still in a certain position or it would disconnect from the PC, so I tried using another USB cable which didn't work either (I tested both USB cables with another device, and both cables were working and the other device was recognized by the PC).
I also updated the USB drivers on my PC with the official drivers on the ASUS support page, and tried putting my phone in fastboot and recovery mode, but both were still not being recognized by my computer. My phone still charges properly, but I am wondering if the USB port got damaged somehow so that it can't connect to a PC anymore?
pyroshroom said:
I was trying to transfer some files to my phone through a USB cable today, but the phone was not recognized by the PC at all (Even though it was working a week or so ago). I had some issues before with the cable needing to be still in a certain position or it would disconnect from the PC, so I tried using another USB cable which didn't work either (I tested both USB cables with another device, and both cables were working and the other device was recognized by the PC).
I also updated the USB drivers on my PC with the official drivers on the ASUS support page, and tried putting my phone in fastboot and recovery mode, but both were still not being recognized by my computer. My phone still charges properly, but I am wondering if the USB port got damaged somehow so that it can't connect to a PC anymore?
Click to expand...
Click to collapse
uninstall and reinstall the drivers. Ensure that phone is not connected during the process.
also have you upgraded your pc os ? if yes then its a little cumbersome to get the same working...
i changed from stock to cm, it is showing well now ... using RR now
Is your phone encrypted? If so you need to unlock in order for your pc to recognize it.
Thank you both of you for the help, unfortunately, my phone was not encrypted so there was no need to unlock in order for it to be detected. Uninstalling and reinstalling the drivers didn't work, and my PC was already on windows 10 since a few months ago. I would also prefer sticking to the stock ROM for this phone for now since they keep coming out with updates.
In addition, I tried using a USB OTG cable to see if the phone could detect the USB drive and my phone couldn't (it has worked before, and my old Galaxy Nexus could still detect it). I also tried plugging my dualshock 3 into the phone, and it also couldn't be detected (also had worked before).
It looks like it's actually a hardware issue and my only option is to RMA it now. I'll have to do it at a time when I don't need my phone as much or when I am not as busy.
PS: In case anyone else has this issue in the future, quick charging also no longer works
zenfone2 I also experienced that, and I have tried several ways, but remains unchanged. I was dizzy today :crying: