Develop Bugs

HELP! ROM flashing related issue? On Activesync: USB Device not recognized???!!!

Hi, I have reflashed my ROM I dont know how many times. Yesterday I tried to connect via activesync on a new ROM and it wouldnt connect. These are some of the things that happened:
Device orange charging light flashes a few times then goes off [never seen THAT before]
Activesyc menu comes up on device but activesync doesnt connect
Get 'this device can perform faster' message on desktop
Sometimes get USB devce not recognized on desktop
SOmetimes device orange charging light it stays on if I plug direct into PC but still doesnt activesync
I have tried to connect as DISK DRIVE but I dont see the device on my PC.
Have tried different ROMS, 6.5, 6.51, sense 2.1 and 2.5 but all have same issue. Have also tried connecting to other computers. same issue.
Have played around with USB to PC menu options (enable / diable faster data sync etc) but doesnt make a difference.
Anyone had this problems? Thoughts?

Have you tried diselecting "ask me 1st about usb connection type when I connect the device to the pc" under USB to PC settings
It worked for me

This is the exact problem I am facing!
I tried everything - as diskdrive, activesync (with/without speedup), etc.
On many ROMs, even the original one (WM6.1)
Can't connect - every PC gives an 'unknown device' and on some ROMs I cannot charge via USB, only via mains...
I also tried without the question on connection.
Just some thoughts:
Do you have corruptions on screen sometimes? (Some graphical glitches)
Any .CAB files you cannot install?
Did you try to reflash the same ROM more than once?
tried to connect without card in the device and in flight mode? (Uses less power)
With me it started after a ROM flash from Miri... (I don't blame him!!)
The Hard SPL did not give me any problem, the radio was not flashed, just the OS. But reverting did not help.
I certainly hope you will find a solution, since I have the exact same problem!!

Do you stil know what ROM you flashed when this problem occured?
I reverted to original ROM 6.1 AND 6.5 which included everything - boot, radio, os, stardup image. But it did not change!

I figured it out after trying everything i could: i think its a hardware problem. I have dropped my devicetoo many times, or plugged it in too many times. Who knows.

ekerbuddyeker said:
I figured it out after trying everything i could: i think its a hardware problem. I have dropped my devicetoo many times, or plugged it in too many times. Who knows.
Click to expand...
Click to collapse
And how did you figured it out? Did you return the device to the shop?

I have this exact same issue except I am on AthineOS... I thought it was my PC until I read these posts. No OS updates or any other machine updates were performed except on my device. Any clues as to a fix?

Somehow I don't think this is just hardware.
I did drop my device once, but that was even before first flash. After that it still worked.
So, some weeks later I HSPLed without any problem. After that the device still worked.
Then, after investigating which ROM to use I flashed the ROM a few days later.
Right after the first flash it all still worked. So, had to flash another and from that moment on the device cannot be reckognised by any PC.
I still think it has something to do with the flashing. I think the device does not give correct feedback when it receives some commands from PC (eg. the command to reply the device type/number)
Does anyone know a program which can check the USB port for the HTC Touch Pro 2? Just to test wheather the connector pins are ok?

download activesync 4.5 and run the setup. it will perform a repair. that usually solves the problem. if not, try a different usb cable and try plugging into different ports on your pc.

crazythunder said:
download activesync 4.5 and run the setup. it will perform a repair. that usually solves the problem. if not, try a different usb cable and try plugging into different ports on your pc.
Click to expand...
Click to collapse
These are the first things done. And this was already written in here.
It happens with many PCs, including some on which the device never connected to.
Also tried different cables, ports, etc.
Also disabled the fast transfer etc. etc.
Even tried several other ROMs, inclusding original Dutch 6.1 and Dutch 6.5

I'm having the same issue. I can connect via bluetooth, but not usb. And I'm stuck with 6.1. I was tole my phone was brand new, but now I'm starting to think otherwise.

waynehead05 said:
I'm having the same issue. I can connect via bluetooth, but not usb. And I'm stuck with 6.1. I was tole my phone was brand new, but now I'm starting to think otherwise.
Click to expand...
Click to collapse
Some questions, to verify this is due to flashing or is a fault in the design of the device...
- Where did you get the device?
- Have you flashed the device?
- Did you accidentally drop the device?

hi just to say had a completely orignal o2 xda orbit 1 flashed with new rom everything worked perfect before now active sync plays up i can sometimes connect but get usb device not reconigsed then click cross then pull out usb then reinsert then active sync connects works fully functional then after 5 min it disconects this is driving me mad as use active sync for a fast internet connection on my pda as my wifi is crap

Phone not Mounting on PC

So my phone was mounting fine on my pc, and then all of a sudden it wasn't. My Nexus 7 still mounts properly and accepts developer commands, but the m8 won't (yes developer settings is on).
I tried wiping and flashing a rom clean and it still doesn't work, charges fine though. Any advice?

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I'm having the same issue. Stock non rooted and it will not connect. I have tried it on other computers cables ports everything.

Art2Fly said:
So my phone was mounting fine on my pc, and then all of a sudden it wasn't. My Nexus 7 still mounts properly and accepts developer commands, but the m8 won't (yes developer settings is on).
I tried wiping and flashing a rom clean and it still doesn't work, charges fine though. Any advice?
Click to expand...
Click to collapse
You might try a different cord.
Open Device Manager in Windows and then plug the phone in. Do you see it in the list with a little yellow triangle? Do you see Android USB Devices listed?

OP after literally messing with various driver files, 8 usb ports and 2 laptops, I dug out my old box of cables and found a taped up, on its last limb OEM HTC EVO 4g (not lte the original) cable. This thing has been through the ringer. But its exactly what It needed. I figured with the 3 cable I had already tried this wasn't the issue, but have you tried using an OEM cable? I guess that is all that works. Good Luck

beamer1341 said:
OP after literally messing with various driver files, 8 usb ports and 2 laptops, I dug out my old box of cables and found a taped up, on its last limb OEM HTC EVO 4g (not lte the original) cable. This thing has been through the ringer. But its exactly what It needed. I figured with the 3 cable I had already tried this wasn't the issue, but have you tried using an OEM cable? I guess that is all that works. Good Luck
Click to expand...
Click to collapse
Still trying to get it to work, have tried 4 cables myself. I might just end up having to return the phone.... Fastboot works in bootloader

Art2Fly said:
Still trying to get it to work, have tried 4 cables myself. I might just end up having to return the phone.... Fastboot works in bootloader
Click to expand...
Click to collapse
Uninstall all HTC drivers and HTC Sync. Then connect the phone. DO NOT choose the option to automatically install any drivers.
Open Device Manager, find the phone. Select the option to manually pick the driver, and select the generic MTP device driver.
This is what worked for me, after countless attempts at re-installing various HTC drivers, different cables and ports, etc.

Bump. Still looking for answer to this. I have RUU'ed both to Sense and Google Phone editions and the problem still persists, the phone does not detect its connected to a computer and change to mtp accordingly. Only way I was able to get the RUU in there was through fastboot, which is again the only time I can access the phone through usb. Adb is no luck in either android or recovery.

Art2Fly said:
Bump. Still looking for answer to this. I have RUU'ed both to Sense and Google Phone editions and the problem still persists, the phone does not detect its connected to a computer and change to mtp accordingly. Only way I was able to get the RUU in there was through fastboot, which is again the only time I can access the phone through usb. Adb is no luck in either android or recovery.
Click to expand...
Click to collapse
Have you tried revoking the USB debugging authorization and then accepting the RSA fingerprint key again when connecting to PC?
Obviously it can't be an USB cable problem if you can connect to it in bootloader mode and use fastboot commands.

To clarify, the phone just charges when connected, it does not detect that it is connected to PC so debugging doesn't even trigger, neither does mtp. I don't even get the slow charging notification

Does it do the same when you plug it in and reboot the computer to "pick up" during boot up process? Or if you run a live CD? I never had an issue like that with my phone but I did have a similar problem with the USB external blu ray drive I bought some time ago. The pc just didn't detect it at all not on any of the ports until I rebooted my PC with the drive already plugged it and for some reason it picked it up. <Not a solution as I don't know what caused it to not be detected in the first place but still...
Not sure if it's an issue with the device(Phone for you, blu ray drive for me) or if it's a problem with the PC even though other things might still work for you as it definitely did for me(phone, headset, mouse, keyboard, usb extender + all the external hard-drives connected to it)...

Problem exists in all computers, Mac, pc, linux

Did you try what I suggest in Post #6 above?
This worked for me when I had the same issue. adb and fastboot would work, but it would not mount MTP.
And just in the last day or 2 I helped someone else with the same issue and fix.

The phone doesn't show up in device manager.

Have you modify the Kernel? (Applying some settings for example)
I browsed over the web for this issue and found some people with the same problems. They solved by removing the settings applied on the kernel or flashing a new one.

I've flashed various kernels and ruu, still same result

Still looking for help

USB not working

I am rooted with magisk and have had no issues until recently I cannot do any file transfers via USB. I also cannot use fastboot to Flash Android p. I want to unroot and remove magisk and Flash the latest OTA however I can't determine if I can remove magisk and unroot without being able to connect to fastboot. I'm also thinking that I may have to do an RMA. Any thoughts? Has anyone else had their USB data transfer stopped working. I've tried multiple cables, multiple computers and Chromebooks.

pbrian138 said:
I am rooted with magisk and have had no issues until recently I cannot do any file transfers via USB. I also cannot use fastboot to Flash Android p. I want to unroot and remove magisk and Flash the latest OTA however I can't determine if I can remove magisk and unroot without being able to connect to fastboot. I'm also thinking that I may have to do an RMA. Any thoughts? Has anyone else had their USB data transfer stopped working. I've tried multiple cables, multiple computers and Chromebooks.
Click to expand...
Click to collapse
Same here, happened out of the blue last week. No Android Auto and no computer would see it. Still charged but no data. I reset it but no go. I RMA'd and new one is perfect. The thing I knew it was messed up for sure is when I got new phone and you use cable from old one to new one to transfer data and it would not see old phone.

We're you rooted on the device you sent back? I'm worried Google will not approve my return

jawmail said:
Same here, happened out of the blue last week. No Android Auto and no computer would see it. Still charged but no data. I reset it but no go. I RMA'd and new one is perfect. The thing I knew it was messed up for sure is when I got new phone and you use cable from old one to new one to transfer data and it would not see old phone.
Click to expand...
Click to collapse
I flashed the new update yesterday and afterwards I had this exact same issue. the reason why I discovered was I never got the prompt to allow usb debugging I had to enable and disable usb debugging several times while plugging it into the pc and after a few tries I got the message and was able to enable it and then I could use the phone on the pc

I had the same problem but I eventually got it to work again. Heres how:
1) Enable developer mode by going into Settings > System About Phone > Build number and tapping a few times (5 I think!)
2) Click back and then select Advanced > Developer Options
3) Scoll down the menu until you see "Default USB configuration". Tap and then select the option you require (ie: File Transfer)
4) Click back, then scroll up the menu till you see "USB Debugging". Enable USB Debugging.
5) Connect your Pixel 2 to you laptop/PC. The phone should appear in the Devices list in 'Control Panel\Hardware and Sound\Devices and Printers. Leave it connected for another 5 or 10 minutes and it should become available in "This PC"
6) Disconnect the Pixel2 from your laptop/PC
7) Disable "USB Debugging" and disable "Developer Mode" on the phone.
8) Reconnect the Pixel2 to your PC/Laptop. It should now appear under "This PC" every time you connect and you should now be able to view and transfer files between you PC and Pixel2.
Let us know if this worked for you.

having the same issue. stock not rooted pixel 2 xl 128gb. is the usb port fried? kind of doesn't make any sense how can it just stop working?? anything else left to try? I spent an hour and half with google support and couldn't figure it out. I can't RMA for warranty b/c I don't have original Order ID. :-/ what do I do?

piotrus22 said:
having the same issue. stock not rooted pixel 2 xl 128gb. is the usb port fried? kind of doesn't make any sense how can it just stop working?? anything else left to try? I spent an hour and half with google support and couldn't figure it out. I can't RMA for warranty b/c I don't have original Order ID. :-/ what do I do?
Click to expand...
Click to collapse
Try cleaning up with a brush. I could be too much dust interfering with the connection.
I read on another thread that someone used post-it strips to do the cleaning.

To close the loop. Cleaning worked. Thank you.

Device charges, but no ADB/MTP notification

As the written on the title section, my pc/mac can not detect my phone, it only charges it.
I re-flashed my phone to stock ( Oct update ).the problem is when it booted up. It can't detect anymore my phone. My pc gives me an error "USB can not be recognized". I think there's no problem with the pc driver since i just flashed the image. Any suggestions??
Method i tried.
Factory flash (since i cant go to bootloader and pc/mac cant detect it)
Safe Mode usb connection
ADB over wifi cannot be detected
RMA (not possible, bootloader unlocked)

kismetmookz said:
As the written on the title section, my pc/mac can not detect my phone, it only charges it.
I re-flashed my phone to stock ( Oct update ).the problem is when it booted up. It can't detect anymore my phone. My pc gives me an error "USB can not be recognized". I think there's no problem with the pc driver since i just flashed the image. Any suggestions??
Method i tried.
Factory flash (since i cant go to bootloader and pc/mac cant detect it)
Safe Mode usb connection
ADB over wifi cannot be detected
RMA (not possible, bootloader unlocked)
Click to expand...
Click to collapse
I've RMA'd a bootloader unlocked phone before. Just flash stock firmware and re-lock it before sending it back. Google's only requirement is that you factory reset from the settings menu in order to disable factory reset protection. If you fail to do this, there will be problems, but otherwise you should be fine.

TheSt33v said:
I've RMA'd a bootloader unlocked phone before. Just flash stock firmware and re-lock it before sending it back. Google's only requirement is that you factory reset from the settings menu in order to disable factory reset protection. If you fail to do this, there will be problems, but otherwise you should be fine.
Click to expand...
Click to collapse
I see, as i mentioned before, my pc/mac cannot detect my phone anymore. There's something wrong with the usb connection. I dont have access to any commands on adb platform since device cannot be seen.

kismetmookz said:
I see, as i mentioned before, my pc/mac cannot detect my phone anymore. There's something wrong with the usb connection. I dont have access to any commands on adb platform since device cannot be seen.
Click to expand...
Click to collapse
replace the USB cable.

parakleet said:
replace the USB cable.
Click to expand...
Click to collapse
I tried 3x usb2a to usb c without success
i tried usb2a to microUSB+ adapter. no success..
still usb not recognized, NO usb debugging notification/MTP/file transfer options. and only charging..

kismetmookz said:
I see, as i mentioned before, my pc/mac cannot detect my phone anymore. There's something wrong with the usb connection. I dont have access to any commands on adb platform since device cannot be seen.
Click to expand...
Click to collapse
If you explain that to them, it might still be okay. The important part is performing the factory reset from the settings menu.

Try clean the port with some tissue paper. Just push in some tissue paper with a pin, be gentle and don't damage the port. You will be surprised how dirty the port is

Be sure usb debugging is enabled in developer options?

kismetmookz said:
As the written on the title section, my pc/mac can not detect my phone, it only charges it....
Click to expand...
Click to collapse
When you flashed the full image, did you leave the flash-all script alone, allowing it to wipe data? Have you done a factory reset from recovery mode? Google doesn't care if your bootloader is unlocked, but they will make you factory reset the phone before authorizing an RMA. May as well get that out of the way now. Nothing to lose because the data transfer tool will not work anyway if your USB-C port is hosed. Just make sure you have a recent Google backup, and that Photos is sync'd up with all your pictures.

in my case, the phone will be only recognized on a USB 3.0 port.

I had this exact same issue.
Try this If you still have the UsbC to USB connector that came with your phone. Plug in an ordinary flash drive into that and into your phone. You should see a notification that you have a USB connected.
Then unplug that and try to connect to the PC. Worked for me twice when this happened.

Is your USB port clean? When I took my Pixel 2 XL into the sea, afterwards data cables weren't working but it would charge, due to salt water residue. After giving it a good clean it worked again.
Worth a shot just to ensure dirt isn't the issue!

TheSt33v said:
If you explain that to them, it might still be okay. The important part is performing the factory reset from the settings menu.
Click to expand...
Click to collapse
Hi Steeve. Thanks for suggestion. Yes they issued me for a standard RMA because the phone is bought from third party site. btw. i got it working without doing nothing after couple of days.
cescman said:
Try clean the port with some tissue paper. Just push in some tissue paper with a pin, be gentle and don't damage the port. You will be surprised how dirty the port is
Click to expand...
Click to collapse
I did that too in the first two days, and did nothing. I was using anti oxidant sprays.
Nergal di Cuthah said:
Be sure usb debugging is enabled in developer options?
Click to expand...
Click to collapse
It was and it is. But neither the usb mtp nor debugging is showing in the notification center and my pc/mac can't even recognize it.
v12xke said:
When you flashed the full image, did you leave the flash-all script alone, allowing it to wipe data? Have you done a factory reset from recovery mode? Google doesn't care if your bootloader is unlocked, but they will make you factory reset the phone before authorizing an RMA. May as well get that out of the way now. Nothing to lose because the data transfer tool will not work anyway if your USB-C port is hosed. Just make sure you have a recent Google backup, and that Photos is sync'd up with all your pictures.
Click to expand...
Click to collapse
Yes, I did and I didn't edit the BAT file with -w . Thanks for your time on replying on this thread.. The Phone is miraculously working again.. I did too much on the first two days and left it alone when I lost hope with it and it came back today..
tatico28 said:
in my case, the phone will be only recognized on a USB 3.0 port.
Click to expand...
Click to collapse
No mtp? no "Usb Debugging"?

Problems with USB connection

Hello! I have a mi A2 lite, I can't connect it to the computer using USB, it doesn't install drivers, it doesn't appear on installed devices. I've tried all the tutorials available on YouTube, but it doesn't work, does anyone know what I could do to fix this?
- I already downloaded the drivers and installed manually, but nothing changes.
- I've tried on multiple computers and none work
- When I bought the cell phone it connected, but after a while no more.
Does anyone know any solution to this problem?
Thanks!

what rom are you on? I'm using the latest 11.0.7 android 10 and its perfectly fine for me.. maybe you can try to factory reset your phone

totoy unot said:
what rom are you on? I'm using the latest 11.0.7 android 10 and its perfectly fine for me.. maybe you can try to factory reset your phone
Click to expand...
Click to collapse
I'm using android 10 too, but the stock rom, I've formatted it several times, but it didn't work, this problem has existed since android 9

viniciusesales said:
- When I bought the cell phone it connected, but after a while no more.
Click to expand...
Click to collapse
Did you allow the phone to talk to USB. You must use the notification to enable file transfer or set the default in settings or enable debugging if you want it to show up to USB.

a1291762 said:
Did you allow the phone to talk to USB. You must use the notification to enable file transfer or set the default in settings or enable debugging if you want it to show up to USB.
Click to expand...
Click to collapse
It does not appear the notification, but I have already tried to activate by the settings too, I already connected the debugging mode, but it also did not work. When connector it only loads, there is no other action.

viniciusesales said:
It does not appear the notification, but I have already tried to activate by the settings too, I already connected the debugging mode, but it also did not work. When connector it only loads, there is no other action.
Click to expand...
Click to collapse
Sounds like a hardware issue then.

a1291762 said:
Sounds like a hardware issue then.
Click to expand...
Click to collapse
I'll take it to a technician to check it out, thank you very much.

I have the same prblm ...... any solutions? Help me please

Same here on v11.0.12. Its a driver issue. You need to install latest xiaomi drivers + qualcomm drivers. I fixed it before but it doesnt work again after i uninstall drivers.

I connected phone to PC with only old original short cable, no other cables worked :/

Have you tried to clean phone's USB socked? There are some spray contact cleaners, that can be used for this purpose.