My phone isn't detected by my Winodws computers at all.
If I plug it into one of the USB ports directly, the phone starts charging, but that's it.
This is obviously not a driver issue as there's no unknown devices in Windows.
I tried different USB cables, USB-C and MicroUSB-to-USB-C adapters to no effect. Also tried this on two computers to no effect.
There's nothing in the phone's USB-C port (dust, dirt etc) and it's usually covered by the magnetic tip of my Volta charging cable (that's one of those "MagSafe-like" cables where the actual plug breaks off from the cable if you pull it)
If I connect the phone to a USB hub, the hub's ports usually light up when a device is connected. The phone does not trigger the port LED to light up.
Same behavior in System, Recovery and Download mode -> Computer doesn't even notice there's a new device, but device is charging (so apparently it notices there's something connected, just no data transfer)
Is my phone broken? Maybe a hardware problem with the USB-C port? Any advice on how to narrow down my problem?
Thanks in advance for any help or ideas you might have.
I had the same problem today but, in my case, it was the cable's connector.
Since you have multiple cables, it's unlikely they are the issue but it would be proof if you were able to check them with a different device. Also, ensure they aren't charge-only cables (I have a few of those; they lack data pins so devices don't slow-charge when they could rapid-charge instead).
You checked in download mode, so that eliminates configuration issues with Android.
That's all I got; it does appear to be the phone's connector or the USB interface.
A hail Mary would be to stick a 2PS6IMG.zip onto an SD card and RUU it in case firmware is the problem.
I'm pretty sure my cables could be used for data transfer as well. I'll try to find a colleague with USB c phone to try that as well. (family has all iPhones and most of my regular meet friends have phones from the stone age)
The firmware thing could be hard to do. Apparently you can't modify the Cid from within the phone anymore (setprop ro.cid doesn't do anything like it did on old HTC phones, despite having S-OFFed the phone) and T-MOB101 (T-mobile - the German parent of all those other clones) firmware is a rare sight.
Related
Hi folks,
i purchased a new usb cable today. its retractable, called 'Sync "N" Charge'. it is essentially the same connections as the stock usb connection cable.
the problem is when i try to connect my (Imate Jam) to my PC(winXPpro) it either freezes my pc, or puts up this msg.
USB device not recognised, one of the usb devices has malfunctioned, click here(opens up systems properties).
It does charge the Jam. well atleast the orange charge indicator lights up(i havent checked for actual charge).
The device drivers for my Jam are fine seeing as it still works when i connect with my original cable.
my original cable works fine, even if i switch straight back to it after trying to connect with the new cable.
I think the cable may be wired incorrectly eg postive and neg prolly fine but the data pins are screwie some how, sound like a reasonable guess?
Is there something else that im not thinking of/dont know about that could be causing the problem?.
bleh just typed all that and answered my own question. the data pins in the new plug are a little bit shorter than the power plug. I use a silicone case on my Jam which stops the plug from pushing in all the way by like 0.25mm. took off the case and bingo problem fixed.
I hate when that happens.
Ok well i might as well say that its a nifty little piece of hardware now that i got it working.
Which leads me another question, the reason i got this new cable was to be able to leave it in my bag and pull it out when i wanted to use my Jam like a 1gb usb card(1gb sd card). the times when i wanted to do this would be at university.
is there a way to make a pc recognise the jam like a usb drive instead of a pocketpc upon connection? i wont beable to install activesync on university pc's.
Thanks
Speedn
Hi,
I've used a USB charger on all my phones for a few years now. Just plug phone in on my desk and no worries. However my new Defy doesn't seem to take a charge from the USB on my network device (it's not a full PC). However my HTC HD2 could get a charge from it so:
1. Is the Defy more power hungry that it won't charge from an ND (I assume NDs put out less power over USB than a PC)
2. Does it just not show on the battery on the Defy that it's charging?
3. Have I missed something simple? I've gone into USB connection and selected charge only. I can't install drivers on the ND though, could that be it? The ND hasn't said it's found new hardware either though.
Thanks in advance for advice
motorola has a notorious reputation on this, they require a usb driver to be installed for charging some of their phones...
i think there's some strange combinations at work about this but, just use a standalone charger and it should solve the problem.
Thanks. I thought it would be that.
Bit short of plug sockets at work but I'll figure something out
Another point to note is that the Defy is very fussy regarding USB cables. A lot of cheap ones will pass data but no charge.
martint235 said:
Thanks. I thought it would be that.
Bit short of plug sockets at work but I'll figure something out
Click to expand...
Click to collapse
Would you consider hacking a usb cable to make a charging lead? A standard usb lead plugged into a PC will try to enumerate with the PC before it starts to draw power from the PC. However if you hacked a usb cable and shorted the DM and DP lines on the phone side, the phone 'should' detect the cable as a mains charger rather than a PC, thus enabling charge without any drivers on the PC. It would be something like the attachment...
Thanks for all the replies. Although my USB cable wasn't cheap and was capable of charging an HD2 which must be more power hungry than a Defy, it turns out the Defy is really fussy. It's charging fine through the Motorola USB lead on my network device.
My USB loading experience
Hi,
just to share my exp:
- loading with most USB loaders: fine
- My Car loaders and my multi power adaptor with usb can load everything but the defy
- on Computer no problem (some say you will have better battery performance when loading on non Computer: I can´t see a difference)
- cable doesn´t change anything
technome said:
Another point to note is that the Defy is very fussy regarding USB cables. A lot of cheap ones will pass data but no charge.
Click to expand...
Click to collapse
I've bought a couple of USB cables from ebay. My Defy seems to connect and disconnect when using them, like it has a loose connection. If I use the Motorola one, of course it's fine!
Since I do not have the original one for this phone I tried my Nexus 7's USB cable and its rather loose, I don't think I can flash a ROM with it due to the chance that it comes off during flash(which it does from slight movement when connected as MTP; its not coming off per se, but it does get disconnected).
But why does it? MicroUSB should be identical, or is the DHD USB port broken?
All microUSb cable are the same.
You can try to clean usb port.
You can find plenty help page on internet with: how to clean microUSB.
It doesn't matter for witch phone. All are the same.
I'm not able to get to the bootloader screen because the front usb port is not functioning on my unit. Has anyone been able to use one of the USB ports on the back to get to ADB and/or get to the bootloader? Is this a known issue with a workaround? I've done quite a bit of searching and have not turned up any solutions. Considering what is involved in shipping this back, I'd much rather figure something out. Thanks in advance for any help!
Edit: I should mention that I have used the adbon password and it does acknowledge that adb has been enabled. Just nothing seems to work on the front port. When I connect my Linux machine and run lsusb nothing shows for the unit. I have considered buying or making a USB-A to USB-A cable to connect my computer to one of the back USB ports, but I'm concerned about how these back USB ports are designed. Is it as simple as a built-in OTG cable? If so I'm probably fine. If it is more like a computer's USB port I could damage my laptop, my headunit, or both. I'd really like to hear if anyone else has had to deal with this. Unfortunately I haven't verified if the front USB will charge a phone. This is my next step.
dutchhome said:
I'm not able to get to the bootloader screen because the front usb port is not functioning on my unit. Has anyone been able to use one of the USB ports on the back to get to ADB and/or get to the bootloader? Is this a known issue with a workaround? I've done quite a bit of searching and have not turned up any solutions. Considering what is involved in shipping this back, I'd much rather figure something out. Thanks in advance for any help!
Edit: I should mention that I have used the adbon password and it does acknowledge that adb has been enabled. Just nothing seems to work on the front port. When I connect my Linux machine and run lsusb nothing shows for the unit. I have considered buying or making a USB-A to USB-A cable to connect my computer to one of the back USB ports, but I'm concerned about how these back USB ports are designed. Is it as simple as a built-in OTG cable? If so I'm probably fine. If it is more like a computer's USB port I could damage my laptop, my headunit, or both. I'd really like to hear if anyone else has had to deal with this. Unfortunately I haven't verified if the front USB will charge a phone. This is my next step.
Click to expand...
Click to collapse
My front USB also doesn't work. I even got mini to standard USB cable with unit, but plugging flash drive into it doesn't produce any reslt.
I also plugged extension cable to one of back USB ports and tried it (plugibg same USB flash) but it doesn't work either.
So I'm also confused.
Does that mean you are still running the stock ROM? I have been hesitant to install the custom ROM because they say you must be able to get into the bootloader even though I couldn't find a step in the process that required it.
Regarding the USB ports not working at all, you may find that you need to use a powered USB hub. I've seen reports of USB devices acting up due to the low power. This is one of the reasons I thought it might be safe to use the rear ports with my computer. (My first real test is going to be mangling a male-to-male USB cable so only the data lines are connected to see if I can get those rear USB ports to talk to the computer. I figure that way there is no chance of frying any circuits.. Each side already has its own power and I don't believe any signaling is sent via the power pins.)
On my unit (MTCB-KGL-V2.80), I have used a T-Mobile USB broadband modem successfully on the rear port, so I know rear ports are live. I did take it apart to see if something was obviously wrong with the front port, but nothing jumped out at me.
So I have a bit more information on my headunit. BTW, I have the BMW E46 model with MCU MTCB-KGL-V2.80.
On my system, both the front USB port and the rear 3G USB port are wired as device ports connected to an AU6258 USB controller (http://www.sunnyqi.com/upLoad/product/month_1403/201403162331285643.pdf). I don't remember exactly which USB ports they are connected to, but I believe the 3G port is connected to port 2 (pins 6 & 7) and the front USB port is connected to either ports 3 or 4 (pins 9 & 10 or 11 & 12 respectively). Nothing is connected to port 1 or to the upstream port. The other rear USB port is wired directly to the MTC_RK3188 board.
All three ports are wired with only four pins, so I'm concerned that none of them could work with the computer. The USB controller doesn't have USB ID pins, so does that mean that the 4 downstream ports are OTG and the upstream port is for a computer? Unfortunately I don't know the hardware side.
dutchhome said:
Does that mean you are still running the stock ROM? I have been hesitant to install the custom ROM because they say you must be able to get into the bootloader even though I couldn't find a step in the process that required it.
Regarding the USB ports not working at all, you may find that you need to use a powered USB hub. I've seen reports of USB devices acting up due to the low power. This is one of the reasons I thought it might be safe to use the rear ports with my computer. (My first real test is going to be mangling a male-to-male USB cable so only the data lines are connected to see if I can get those rear USB ports to talk to the computer. I figure that way there is no chance of frying any circuits.. Each side already has its own power and I don't believe any signaling is sent via the power pins.)
On my unit (MTCB-KGL-V2.80), I have used a T-Mobile USB broadband modem successfully on the rear port, so I know rear ports are live. I did take it apart to see if something was obviously wrong with the front port, but nothing jumped out at me.
Click to expand...
Click to collapse
No I flashed Malaysk ROM from GPS SD card. No problems. Just follow instruction. I had luck that I didn't need to recover from USB.
Did you tried with USB powered hub? I don't have one to try it myself.
RK3188 1024x600 front USB not working confirmed
pa.ko said:
My front USB also doesn't work. I even got mini to standard USB cable with unit, but plugging flash drive into it doesn't produce any reslt.
I also plugged extension cable to one of back USB ports and tried it (plugibg same USB flash) but it doesn't work either.
So I'm also confused.
Click to expand...
Click to collapse
I checked on my Linux workstation with
Code:
lsusb |wc -l
plugging and unplugging all three USB cables and the number did not change. BTW where did you use the "adbon" command? The only place that I could even try was at Settings > Factory Settings. Regards Flint
Hey all, I'm having a really weird issue (Google searches give nothing but the static/generic answer on how to access this area), where my USB Options are no longer there, when I tap the three dots, in the Storage area.
Stock Firmware, Android 6.0.1, Rooted using TWRP Recovery. I've never had an issue with this before, and it was working fine a week ago. No new apps installed, since then.
When I plug the device into my computer, it says charging, but no other USB connection.
Any one have any ideas, as to why or better still, how to get it back?
Thanks
EDIT/UPDATE: I did a factory reset, and it's still not there. I can't even completely wipe it, and start fresh since I can't access it at all, from my PC.
I had a similar issue. The tablet stopped charging and the data connection was being interrupted all the time.
It might happen that the female micro-USB connector (on the tablet) becomes unfirm/loose after some years of use. The micro-USB connectors are well-known to fail after some years, because there are two pins that fix the male connector inside the female one. They get loose over time. This is a general frailty of female micro USB connectors in all devices.
- Try an other usb cable. (Better: try out different cables, perhaps one will work.)
Also, the female connector might be dirty. There might be debris on the contacts.
- You can try to clean the female connector (at your own risk!), I did it carefully with a tissue soaked with ethanol.
In theory, it might be possible to replace/repair the connector if everything else fails.