Develop Bugs

Cannot Sync - USB Device not recognized

i am getting an error message saying "USB device not recognized. One of the USB devices connected to this CPU has malfunctioned and windows cannot recognize it"
when i plug the phone in to the usb plug the charge light comes on for a sec, then i get that message and then the light goes off. I feel as thought i may have damaged the mini usb port (the cable is a snugger fit now) on my phone due to a drop, but it still charges thru the wall and has worked since the drop on the cpu, but now i am getting that message.
Help!

Are you having trouble making phone calls? I had this issue one time in my hermes, and its a brick now!

No, phone functionality seems fine...data and calls.
btw, the light also comes back on after the phone goes to standby.

Change the USB cable and see if it fixes it! If not, it might that the pins are getting a bit worn out in the phone.

don't have another cable to test right now, but the same cable works for another phone. not sure if that proves anything, but it's all i know for now

Dillsnik said:
don't have another cable to test right now, but the same cable works for another phone. not sure if that proves anything, but it's all i know for now
Click to expand...
Click to collapse
Have you reboot your phone and your pC?

mine doing the same thing. thats why I looked at the tread hopeing someone would have an answer. I guess not.
MS6 software, windows vista ultimate.

zocster said:
Have you reboot your phone and your pC?
Click to expand...
Click to collapse
Yes. From past experience with various charging issues with different Hermes before (car chargers not able to charge unless powered off, then rebooting plugged in to keep the charge going), finicky usb cables, etc. ), I know that the hermes can be funny with charging/syncing to begin with. But since i had dropped it and it landed right on the port and bent it a tad, it really feels like something got damaged a bit. Not enough to eliminate the charging from working, but enough to give me problems....like this.
Example, i have never had this problem in the wall before, just mainly in the car, and even then it's usually when the battery is very low: When i plugged the phone into the wall last night, it wouldn't charge right away. once it went to sleep mode it started charging, but i i power it up the charge light goes off.

try
HKCU\ControlPanel\Comm\Cnct = `57600 Default (string)
to
HKCU\ControlPanel\Comm\Cnct = `USB (string)
Click to expand...
Click to collapse
it work for me

thank you for the tip, but no luck still

in the "USB to PC" under your system settings, the box to "enable advanced network functionality" sould be checked by default, uncheck that box and you should be able to connect and sync through usb with no problem

I've done that...it feels like a hardware problem, but since the port works kind of it's hard to call it a hardware issue. techs i've talked to have said if it works at all then it must be software related

Usb no connect?

Since i am on the energy Rom Energy.RHODIUM.21914.Sense2.1.Aug.18, my USB does charge but does not sync with the pc. i can not access the SD neither the phone itself.
how do i fix this?

have you got the newest activesync/wm device centre installed on your pc? and do you still get the screen asking whether to use activesync, usb storage or internet sharing?

feygor said:
have you got the newest activesync/wm device centre installed on your pc? and do you still get the screen asking whether to use activesync, usb storage or internet sharing?
Click to expand...
Click to collapse
I 'm having the same problem as stated above. To anwser your question no, nothing pops up. Please help. I don't think it's a rom problem.

It might be a hardware issue. Try a different USB cable. Also try looking at the USB connector inside the phone with a magnifying glass, to see if any pins look out of place. Different pins are used for the charging as opposed to data (syncing).

Disable your firewall
90% chance this will solve your connectivity issues.
I'm using ESET Smart Security suite, and it's firewall is known to interfere with Windows Mobile phones...
cheers

steviewevie said:
It might be a hardware issue. Try a different USB cable. Also try looking at the USB connector inside the phone with a magnifying glass, to see if any pins look out of place. Different pins are used for the charging as opposed to data (syncing).
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Click to collapse
This. Happened to me.
At one time it was thinking TV-out was connected all the time, ARGH!
I fixed it but still, a lot of times it won't sync but will show up in explorer.
Never had firewall issues, though?

kosmarnik said:
This. Happened to me.
At one time it was thinking TV-out was connected all the time, ARGH!
I fixed it but still, a lot of times it won't sync but will show up in explorer.
Never had firewall issues, though?
Click to expand...
Click to collapse
How can you tell if it thinks it's in TV out mode? How do you fix.
I'm having the same issue, within the last few weeks USB for activesync or mass storage doesn't seem to work any more. Charging is fine though, as is the headset for radio.

it happens when you don't have active sync installed. if you have active sync installed try using diff. usb port on your pc.

Go into Start > Settings > Connections > USBtoPC.
Uncheck the box that says "Enable faster data synchronization."
Press Done at the bottom and try again.

Both I and a friend had this happen to us at relatively the same time. I'd read another owner that had RMA'd their phone for this issue and was told it was because of their car charger. My friend and I had taken a trip and had both used my charger, which involved turning the car on while plugged in. We were both under warranty, so we got our phones replaced.
To my knowledge, there has been hardware damage and the data part of the connection will not work again.
Another symptom was that the battery was discharging rapidly. If you notice this, you're probably looking at needing a replacement.

arimp said:
How can you tell if it thinks it's in TV out mode?
Click to expand...
Click to collapse
The phone will show a TV-out screen asking you to pick PAL or NTSC video output mode.

ugoff said:
Both I and a friend had this happen to us at relatively the same time. I'd read another owner that had RMA'd their phone for this issue and was told it was because of their car charger. My friend and I had taken a trip and had both used my charger, which involved turning the car on while plugged in. We were both under warranty, so we got our phones replaced.
To my knowledge, there has been hardware damage and the data part of the connection will not work again.
Another symptom was that the battery was discharging rapidly. If you notice this, you're probably looking at needing a replacement.
Click to expand...
Click to collapse
What happen here was that the pins got slowly bent out of shape and could not maintain contact and were some times making a short.
I fixed it with some sharp end tweezers and a needle.

[Q] Note 2 N7100 Not charging On AC Adapter

Hey guys.
first of all i am using rooted GN2 N7100.
ive been rooted for about more than 6 months, with stock roms. but this recent few weeks. my phone wont easily charge via AC adapter. i thought it was the adapter fault. the symptom is, a 1 second repeated gap of connect/disconnect when plugging in the adapter. and it will stop for a few minutes. and it will continue that way again and again. so ive made some test. tested that ive made are as below:
1. Tested the adapter with other phone. it works fine.
2. try to change the cable but with the same adapter, still wont work
3. try to change the adapter but with the same cable, still wont work.
so.. i thought at 1st it was the microUSB port for SURE!!! but im proven wrong when i desperately need to make my phone stays alive, i try to plug in the cable to PC USB port!! WALLA!!! it work just fine!!!!
so i thought it must be the software.. so i decided to flash a custom roms.. was hoping that it will replace the system files to a new one and making the charging works. after ive done that. it still wont charge.. and restore back to my backed up stock roms because i dont want to deal with all the "EFS" hanky panky thing.
so now im out of idea. (u know how pain it is to wait for ur phone to charge on PC USB right guys? )
by the way. i found out something, if i use a cable that is not capable on transferring data and connect it to the adapter and to my phone. it works just fine!!! what does this means?
i need all u pros out there to guide me on this. tried to google this case in 2 days aready. so i think, my case is one of a kind for note 2.
Because of my phone will charge normally using PC USB but not in AC Adapter. so i really believe my MicroUSB port is still in good condition.
i hope that im not wrong.
just please help... thousand thanks,

anyone? please..................

bujart87 said:
Hey guys.
first of all i am using rooted GN2 N7100.
ive been rooted for about more than 6 months, with stock roms. but this recent few weeks. my phone wont easily charge via AC adapter. i thought it was the adapter fault. the symptom is, a 1 second repeated gap of connect/disconnect when plugging in the adapter. and it will stop for a few minutes. and it will continue that way again and again. so ive made some test. tested that ive made are as below:
1. Tested the adapter with other phone. it works fine.
2. try to change the cable but with the same adapter, still wont work
3. try to change the adapter but with the same cable, still wont work.
so.. i thought at 1st it was the microUSB port for SURE!!! but im proven wrong when i desperately need to make my phone stays alive, i try to plug in the cable to PC USB port!! WALLA!!! it work just fine!!!!
so i thought it must be the software.. so i decided to flash a custom roms.. was hoping that it will replace the system files to a new one and making the charging works. after ive done that. it still wont charge.. and restore back to my backed up stock roms because i dont want to deal with all the "EFS" hanky panky thing.
so now im out of idea. (u know how pain it is to wait for ur phone to charge on PC USB right guys? )
by the way. i found out something, if i use a cable that is not capable on transferring data and connect it to the adapter and to my phone. it works just fine!!! what does this means?
i need all u pros out there to guide me on this. tried to google this case in 2 days aready. so i think, my case is one of a kind for note 2.
Because of my phone will charge normally using PC USB but not in AC Adapter. so i really believe my MicroUSB port is still in good condition.
i hope that im not wrong.
just please help... thousand thanks,
Click to expand...
Click to collapse
Ur problem is unique 4 sure. R u on 4.3 or 4.4?
U can check if an AC Adaptor+cable of other Note2 phones work?
If it does, buy new one.
If not, mUSB port could be a problem. U said it charges on PC. That is DC current not AC. Which suggests that your port is working partially. It is receptive to DC not AC.
Sent from my GT-N7100 using Tapatalk

no USB recognition

Hi.
After searching and testing for hours I don't know how to proceed...
I can't access my phone via USB anymore. The phone isn't detected, no change in device manager on Win7. Only Win8.1 says it found an unknown device.
Quick Charge also does not work like before, but normal charging works stable on every cable.
On the phone, no connection info pops up. I had to set MTP in the developer settings. But it does the charging vibration.
Some testing before, the device was detected in about 1 of 10 tryings, but only with the original cable.
But now, this also doesn't happen anymore.
It worked for about 4 times in a row, after I flashed a 20g flashable kdz over the 20d, but stopped working then.
Could the method that activates MTP functionality be corrupted? (in download mode it also doesn't work)
This all happens between updating to mm and now.
The phone is unlocked and rooted. I use an extended battery and a SD card. A reset didn't help.
The pins of the port look ok. None of the solutions I found did help.
Could the controller or parts of the port be destroyed?
Could my Aukey QC 3.0 car charger do some harm to the device? Maybe when being connected while starting the engine or something like this?
Is the warranty for hardware problems like this void when unlocking the bootloader?

Phantom272 said:
Hi.
After searching and testing for hours I don't know how to proceed...
I can't access my phone via USB anymore. The phone isn't detected, no change in device manager on Win7. Only Win8.1 says it found an unknown device.
Quick Charge also does not work like before, but normal charging works stable on every cable.
On the phone, no connection info pops up. I had to set MTP in the developer settings. But it does the charging vibration.
Some testing before, the device was detected in about 1 of 10 tryings, but only with the original cable.
But now, this also doesn't happen anymore.
It worked for about 4 times in a row, after I flashed a 20g flashable kdz over the 20d, but stopped working then.
Could the method that activates MTP functionality be corrupted? (in download mode it also doesn't work)
This all happens between updating to mm and now.
The phone is unlocked and rooted. I use an extended battery and a SD card. A reset didn't help.
The pins of the port look ok. None of the solutions I found did help.
Could the controller or parts of the port be destroyed?
Could my Aukey QC 3.0 car charger do some harm to the device? Maybe when being connected while starting the engine or something like this?
Is the warranty for hardware problems like this void when unlocking the bootloader?
Click to expand...
Click to collapse
Don't know if that will actually help but just give FWUL a try.
Link http://tinyurl.com/FWULatXDA
This is a live ISO where you don't need any drivers etc. If you have a physical defect it will not help but to exclude windows + driver issues it's worth a try
#
Sent from my LG-H815 using XDA Labs

I gave that a try but it didn't help.
I am totally confused, which type of (bad) usage could result in such a behavior...
It also do not detect my Flir One thermal cam anymore.
How can I figure out if it is based on soft- or hardware?

im having a very similar issue with my g4 , it charges very slowly and shows charging from a USB source instead of AC when plugged to a charger, quickcharge stopped working, and my pc wont recognize it.
i think the problem is a damaged usb port

unleashurfreak said:
im having a very similar issue with my g4 , it charges very slowly and shows charging from a USB source instead of AC when plugged to a charger, quickcharge stopped working, and my pc wont recognize it.
i think the problem is a damaged usb port
Click to expand...
Click to collapse
Today I was in a repair shop for mobiles and the guy heated up the internal pins of the usb port with a soldering iron to exclude a problem with the connection there, but it didn't help.
Next would be to electrically meassure the external pins against the internal pins, to be sure there is nothing broken. But I think, I will send it to LG to check the device for the concrete issue.
The guy at the service said, it could be that some of the flashs did destroy the function which calls up the data connection and that they can do a complete reflash without using the usb port.
But... he also said that the diagnosted issue could be out of my warrenty due to the unlocked bootloader.
If you want to exclude the usb port as a problem, it is quite easy to change the usb port for someone with a good soldering equipment. The port itself does only cost a pocket money and there are some detailed videos on youtube for this. good luck ^^

Phantom272 said:
Today I was in a repair shop for mobiles and the guy heated up the internal pins of the usb port with a soldering iron to exclude a problem with the connection there, but it didn't help.
Next would be to electrically meassure the external pins against the internal pins, to be sure there is nothing broken. But I think, I will send it to LG to check the device for the concrete issue.
The guy at the service said, it could be that some of the flashs did destroy the function which calls up the data connection and that they can do a complete reflash without using the usb port.
But... he also said that the diagnosted issue could be out of my warrenty due to the unlocked bootloader.
If you want to exclude the usb port as a problem, it is quite easy to change the usb port for someone with a good soldering equipment. The port itself does only cost a pocket money and there are some detailed videos on youtube for this. good luck ^^
Click to expand...
Click to collapse
Thanks i think i'll give this a try

Question Phone charging, but it isnt

I think i just ****ed my phone with a simple USB. I wanted to stream to pc so i plugged a usb c into my device and into my pc, then i noticed it wasnt detecting on redmagic app so i unplugged, now my battery status is in green and it has a white lightning bolt by it, and thinks it is charging when it isnt. Says charging 45 days left, accubattery has stupid high voltage, and rebooting doesnt fix it. Do i need to send it back for warranty or something? never had issues with default charger, i just used this ****ing usb c for streaming and now my **** is broken if i shut off the phone it brings itself back and before unlock shows the charging symbol in the middle. Please can anyone help me ill take any suggestions

Maybe the charger is the problem.
Always check the charger.

At when moment do you notice this problem ? After installing an app ?

Samarimama said:
At when moment do you notice this problem ? After installing an app ?
Click to expand...
Click to collapse
all i did was take a usb-c in my room, plug it into my pc to stream, nubia app didnt see it, so i unplugged, now im screwed.

my default charger never had an issue, all i did was plug in a usb-c into the pc as the app states, now high heat, drain, and i cant charge because it thinks its charging

So use another one

Samarimama said:
So use another one
Click to expand...
Click to collapse
i dont think you read my post, since i plugged in that usb to my PC TO STREAM, NOT CHARGE, i CANNOT use any other one, because android thinks it is charging without ANYTHING PLUGGED IN. If i plug in a charger, nothing changes, because android already thought it was charging

Is the PC recognize him ?

Sardine2399 said:
i dont think you read my post, since i plugged in that usb to my PC TO STREAM, NOT CHARGE, i CANNOT use any other one, because android thinks it is charging without ANYTHING PLUGGED IN. If i plug in a charger, nothing changes, because android already thought it was charging
Click to expand...
Click to collapse
Maybe the port got damaged? Try to clean it first if possible using an ear swab dipped in rubbing alcohol with the device turned off and let it dry.
If it's a damaged port, may need to be repaired.

If yes, do a factory reset.

Samarimama said:
Is the PC recognize him ?
Click to expand...
Click to collapse
i just did a factory reset and it's still broke, so i think plugging usb into computer literally ****ed my battery.
Thanks for trying to help but ig i need to use warranty. Bull**** really, because they never tell you specifically what to use, just a usb-c, now im gonna be out of a phone because i tried to use a feature.

immortalwon said:
Maybe the port got damaged? Try to clean it first if possible using an ear swab dipped in rubbing alcohol with the device turned off and let it dry.
If it's a damaged port, may need to be repaired.
Click to expand...
Click to collapse
If the port is damaged, so how Android can know if the phone is charging ?

Samarimama said:
If the port is damaged, so how Android can know if the phone is charging ?
Click to expand...
Click to collapse
Do you understand what power surges are or what improperly plugging in a cable can do to a port of a mobile device?
For example: Too much or too low voltage can damage a port to the point the device will think something is there, when it isn't. The same goes for damaging the pins when you plug the charger in.

immortalwon said:
Do you understand what power surges are or what improperly plugging in a cable can do to a port of a mobile device?
For example: Too much or too low voltage can damage a port to the point the device will think something is there, when it isn't. The same goes for damaging the pins when you plug the charger in.
Click to expand...
Click to collapse
my friend was saying something similar, but was originally going more towards "android got drunk, reset"
but sadly that didn't work. So im assuming plugging in a usb-c to my phone to my pc literally ****ed my port/battery. I didn't SHOVE it in, i plugged it in as i would my normal charger.
if voltage is the case, i find it very unfair they don't disclose this in their streaming app, it simply says to use a usb-c and that is what i did, now im paying for trying to use a feature of a device i paid for.
already shot an email to support, and have a backup phone in the meantime.
appreciate your response, backing up one of the theories of why its now screwed.

Sardine2399 said:
my friend was saying something similar, but was originally going more towards "android got drunk, reset"
but sadly that didn't work. So im assuming plugging in a usb-c to my phone to my pc literally ****ed my port/battery. I didn't SHOVE it in, i plugged it in as i would my normal charger.
if voltage is the case, i find it very unfair they don't disclose this in their streaming app, it simply says to use a usb-c and that is what i did, now im paying for trying to use a feature of a device i paid for.
already shot an email to support, and have a backup phone in the meantime.
appreciate your response, backing up one of the theories of why its now screwed.
Click to expand...
Click to collapse
"stuff" happens, it's unfortunate but technology is known to go bad randomly without explanation. Best to get it repaired if you still have warranty. Otherwise, upgrade the phone to something newer. It's just bad luck.
Sometimes people buy cars and they break down within a few months.

immortalwon said:
"stuff" happens, it's unfortunate but technology is known to go bad randomly without explanation. Best to get it repaired if you still have warranty. Otherwise, upgrade the phone to something newer. It's just bad luck.
Sometimes people buy cars and they break down within a few months.
Click to expand...
Click to collapse
yeahh just really sucks because this thing is so GOOD. Hate to see it go away for possibly weeks just because i wanted to try something new :/
thank god i held off on rooting, and still have my old phone, so hope isnt fully lost.

Sardine2399 said:
yeahh just really sucks because this thing is so GOOD. Hate to see it go away for possibly weeks just because i wanted to try something new :/
thank god i held off on rooting, and still have my old phone, so hope isnt fully lost.
Click to expand...
Click to collapse
Did you try the rubbing alcohol cleaning? I had something similar with an ipad, the USB c cable broke a couple of the female port and it ended up screwing the whole thing, as much as I want to advice anything, it ain't a software issue but a hardware one, the only option I see it's cleaning the port and trying to "scrap" any debris that might been left by the other cable, If that doesn't work, then yes, use your warranty asap

Alextakatu said:
Did you try the rubbing alcohol cleaning? I had something similar with an ipad, the USB c cable broke a couple of the female port and it ended up screwing the whole thing, as much as I want to advice anything, it ain't a software issue but a hardware one, the only option I see it's cleaning the port and trying to "scrap" any debris that might been left by the other cable, If that doesn't work, then yes, use your warranty asap
Click to expand...
Click to collapse
i didn't even think of that, but if i were to do that, wouldn't they then use that as an argument of why it stopped working? "oh well you put cleaning alcohol in the port, of course its gonna break idiot" etc
i have some of https://www.amazon.com/CRC-05101-QD...prefix=crc+aq+elecronic+cleane,aps,104&sr=8-2
that, i used it before on electronics, it says its safe for electronics and i used it to clean my weed pens before, but i really dont wanna try to clean it if it can be used against me later. It also doesn't APPEAR like anything is on the connector, but who knows right. I just dont wanna try to clean it, then have them blame me and refuse warranty because i tried to fix it, even amazon said with what i said, the device is defective, so idk maybe i will try

AARGH...
How you can plug this *****d charger and the phone's usb port is damaged.

Samarimama said:
AARGH...
How you can plug this *****d charger and the phone's usb port is damaged.
Click to expand...
Click to collapse
i dont think port is damaged, i think voltage from my pc to phone was so high/low that it totally ****ed the battery or port.
once again, all i did was take a USB-C CORD and PLUG IT INTO MY DEVICE, took the other end and plugged into USB, i see nubia app doesnt see phone, unplug it, and ****ed.
has to be electrical, nothing else makes sense for what i did, the only cord they give you out of the box is a 65w usb-c to usb-c, had i a proper cord from usb-a to usb-c i wouldnt be in this situation
https://imgur.com/RD7c0LV
i did what it said, and now im paying for it. Given the fact there's no way to change the charging method/wattage/voltage in the system, i feel they should at least specify what TYPE of usb-c cord to use, because im just a normal user who wanted to stream to pc, and all because i simply did what they said, I'm out of a phone. Ridiculous.
im convinced the voltage of device + too high/low voltage of port, screwed the battery up, and now it thinks its always charging, and says 45 days left till full charge, does this not sound like a problem from electricity? i did NOTHING ELSE, this is the dumbest thing i've ever had to deal with, all because i plugged in my phone to pc