Usb brick fix unrooted. S-on - Desire HD Q&A, Help & Troubleshooting

TOTAL NOOB HERE.
I have already posted but everyones situation is different to mine and I really need someone to talk me through what it is I need to do I've been trying to fix this issue for the last 20hrs with no sleep!
Here is the situation:
I have an HTC Desire HD 2.3.3. It is S-ON. The issue (after doing hours of reading) appears to look like a classic USB brick. As in no matter what sdcard I place in the phone it still reads as "unavailable" with no mounting options. Same thing happens when I connect to the PC I have HTC SYNC/Charge only/USB Tethering but no Mass storage option. This is driving me F****** mad now!
I have already tried 3 different SDcards all three are class 2 and both work fine in my Galaxy S2 and have also reformatted all 3 in the PC using Fat32 and even through command line prompt. I've also tried 2 different USB cables on various usb ports. I have tried cleaning contacts and even beefing up the cover with folded paper. Bluetooth works fine and when I connect it to the PC i have all the options you would expect to see apart from mass storage. The issue is the card will not mount and everything just reads 'unavailable' inc mount - which is just greyed out.
I have managed to get ADB/Fastboot to work (at least I think) I can perform function: 'Fastboot oem enableqxdm 0' when I am in boot menu (vol down + power) and I get a msg which says OKAY. However at this moment in time I need the help of GOD! I have SDK installed with all packages installed and placed in C:/android. I also have USB debugging enabled. Should I be executing these commands from boot menu (Fastboot usb) or the phones desktop. when I try 'adb devices' while phone is in desktop it reads fine and tells me that there is a device listed. but when I try ...enableqxdm from desktop I just get 'waiting for device'. I have used PDAnet to correctly install ADB drivers. I am running Windows 7 64bit. I have factory reset soft/hard. The only thing I havent tried is to see if it appears in recovery mode and the various brick fixes which tbh just confuse the living hell out of me. Please can someone talk me through what it is I need to do I have no idea where to go from here. Like I said I am totally new to this but looking to build up a competency for next time. I have read a guide (Im sorry cant remember who it was by) but they mention to perform 'getvar cid' then follow link to website which creates mtd file...which no longer exists I have searched far and wide and I am ready to throw this piece of crap on ebay for spares/repairs. It was originally on Orange but unlocked and I have been using a tmobile sim which works fine.
PLEASE HELP ME :-(

Edit: Cards not being picked up in recovery mode
Sorry about horizantal fail.
Sent from my GT-I9100 using xda app-developers app

Phone sent to independent repair centre will post with what issue was.

Related

[Q] USB Brick

My mac is unable to detect my phone since I flashed Cyan 6 Test 8 Koush, as such I am unable to use adb. Given that I use a mac I assume this is not a driver issue. Phone is able to recharge via USB and USB debugging is enabled. I have found this issue (USB Brick) for the desire on this site but it involves flashing a rom unique to that device. Any ideas on how to resolve issue? Other than USB brick issue, everything is in order.
My card reader is able to read SD card and I have copied to my HD, so I assume issue is with USB on phone.
The only thing I can think of is that your phone somehow got stuck on "Charge Only" mode. In the stock version you can go to Settings, Connect to PC and then change some options there... I do not use this rom though so I'm sorry I can't help you other any further (I'm sure you likely already knew about the above info... if no one responds to you with an answer within a couple days I'd consider asking the Indian Prince of Roms himself... and I know he uses a Mac).
I assume you are mounting your system in recovery while trying to get adb?
Sent from my Incredible using Tapatalk
Yes. Device is not found. Can't view contents via finder either. When I pop out SD card and insert into reader contents are visible.
Sent from my Incredible using XDA App
http://androidforums.com/all-things...16-how-revert-back-earlier-version-hboot.html
This should also fix usb bricks.
Referencing:
http://forum.xda-developers.com/showthread.php?t=691639
Obviously you will need to try it from a terminal emulator.
I recently had the same issue - on a PC - where my CM6 test 8 install would charge but not register as a USB device and give me device malfunction warning messages. Turns out it was a problem with a non-HTC branded micro USB cable I was using.
Odd thing is it worked fine for a month or so, then decided to not work anymore out of any USB port. Switching over to the original cable fixed the problem. Now the other cable is relegated to the stock charger.
This should also fix usb bricks.
Referencing:
Obviously you will need to try it from a terminal emulator.[/QUOTE]
Thank you. I am on the road, so I won't be able to implement your solution until later. The procedure you outlined seems simple enough. I will reread. Is it ok if I email you with any questions, or would you prefer that I address my questions via this forum?
tdiman said:
I recently had the same issue - on a PC - where my CM6 test 8 install would charge but not register as a USB device and give me device malfunction warning messages. Turns out it was a problem with a non-HTC branded micro USB cable I was using.
Odd thing is it worked fine for a month or so, then decided to not work anymore out of any USB port. Switching over to the original cable fixed the problem. Now the other cable is relegated to the stock charger.
Click to expand...
Click to collapse
Funny thing is that I did not notice the problem until I changed cables. I was using a third party w/no problems, problem only surfaced when I used original cable. Hopefully I will have same luck as you, if not, adrynalyne posted near idiot proof instructions. I just hope that I am brighter than your average idiot, no promises.
adrynalyne, if my hboot is .77 could I simply flash PBI131.img to revert back to original? If not, could I use terminal emulator on my phone to execute necessary commands?
Answer from adrynalyne was "Well, yeah. the PB31IMG.zip should work, as long as it lets you. The other method would need to be done if it won't."
I was able to resolve the problem by switching usb cord to a 3rd party from htc, go figure. Nevertheless, the USB issue has been cited in other forums and if anybody else runs into the problem, follow directions above, i.e. follow links.
TY to all who gave me advice, esp. adrynalyne.
hey, umm.. im having a similar problem. when i try to plug in my droid incredible with the leaked 8/1 froyo rom, nothing comes up on my PC, i am able to acces my sd card by going to computer, and then clicking my sd card. but when i did this, i also noticed that there was a new cd drive, which comes from my phone. does anyone know if this is a usb brick?
Apparently there is a vzw ISO. There are instructions on how to remove in another post. Search USB bricked. I can't post links otherwise I would.
Sent from my Incredible using XDA App
Well, i tired it, but it didnt fix my auto start problem... and now, the cd drive doeant have a name, its juat cd drive:f

[Q] Htc Desire ermmm bricked :(

Evening everyone
Got a BIG problem with my phone today and having searched and read i still cant fix it
Ok a little about my phone: Rooted with amon recovery, recently s/off, CyanogenMod 7 rom and kernel, -32 radio..
Right here is the problem...
Did a nandroid backup in recovery of the rom i was using ^^ and all seemed fine, i then rebooted my phone,, booted up, waited for everything to work and then i noticed my apps weren't there?
Went into storage and it showed no memory card,, so i rebooted phone hoping this might fix but it didn't.
Plugged my phone into laptop and a message flashed up "usb device not recongnised" i though Sh!t whats happened ?
So i booted my phone into recovery to mount the sd and a message again "error cant mount sd"
Clicked reboot phone and now its stuck on the "why so serious" screen ???????
Ive dloaded the sdk tool but really not sure what i should be typing in there ??
Anyone with a little time care to help me out please lol ???
Cheers
EDIT: I have flashed nearly every rom on xda since i rooted about 4 months ago without any problems, always did the wipes in recovery before flashing so really dont know what has happened here ?
Try formatting SD card, if that doesn't work, reflash recovery
Sent from my Vanilla Tazz using XDA App
Hi mate.
Forgot to mention i did format sd card on pc "fat32" using a sd card reader but that aint solved it
Not re flashed recovery though....
Edit: how can i re flash recovery if my lappy wont recongnise phone
knipp21 said:
Try formatting SD card, if that doesn't work, reflash recovery
Sent from my Vanilla Tazz using XDA App
Click to expand...
Click to collapse
chrisvr4 said:
Hi mate.
Forgot to mention i did format sd card on pc "fat32" using a sd card reader but that aint solved it
Not re flashed recovery though....
Edit: how can i re flash recovery if my lappy wont recongnise phone
Click to expand...
Click to collapse
Looks like you have been usb bricked, look this forum for usb brick fix, its not the fault of the rom, it just sometimes happens. Got it once too, easely to fix.
Sent from my HTC Desire
Im not blaming the rom not one bit as its been running fine this morning up untill i did the backup.
I have read and read that much my heads spinning %-( there's hek of a lot to take in and being a rather noooooob im lost as to what i should do
Worstenbrood is right, that's.just a USB brick, don't worry, it's an easy fix. Search Modaco for USB rickrolled.
http://android.modaco.com/content/h...com/309939/usb-brick-rickrolled-b0rked-fixed/
You can skip step one.
Not to worry ? im bricking it lmao
I really aint got a clue about the fastboot thingy if you have a little time could you give me a step by step of how its done
cheers
Download the SDK and then use the command prompt to run the fastboot command from the Modaco tutorial.
There are quite a few guides for fastboot, just Google it
Hi
I just ran the command and when entered it said fastboot not found?
You need to run it from the directory containing fastboot.executive (in the SDK).
thanks for the replies
i have tried that but im getting 'adbwinapi.dll is missing from your computer'
i have re-installed sdk and still wont work?
Did you do this
Windows XP / Vista
Right click on the My Computer icon and select the properties tab.
Select the Advanced tab and click the Environment Variables button.
In the new dialog box dowble-click on Path (located under System Variables) and type in the full path location to the tools directory.
Has to be done for it to work
If you have never used sdk before Google for a good install & how to use guide
whooohoooo right solved the sd problem, new rom flashed and powered up Many Thanks guys "but" i still cant use the usb on laptop ?
When i plug usb in it the phone only charges ? and an usb not recognised message ?
did u install the htc drivers from the htc website? i was having problems with connecting my phone dowloaded those and un-installed sync and all was fixed!
i get 'usb not recognised message' every now and then on my home pc and the works pc both running Windows 7 64bit.
I found that usually when it pops up about
'usb not recognised message'
i just unplug the cable then back in a few seconds after the message then it usually connects ok. sometimes it takes a few attempts.
thats with 'HTC Wildfire_setup_3.0.5481' installed for the 64bit drivers.
Thanks very much guys for all your help managed to get the usb fixed by installing htc sync
But now i have another problem i noticed today is Bluetooth wont turn on ? is there a fix out there for this ?
cheers
Im experiencing strange reboots now with phone plugged into laptop via usb, and on the status bar on phone it show usb debugging and then dissapears and comes back and when i unplug usb the phone reboots?
I wiped the laptop yesterday and phone seemed fine and now the troubles have come back
In logcat error im also getting this message when i enable bluetooth
attempting to remove unknown iface (usb0), ignoring
bt_enable: Timeout waiting for HCI device to come up
Seems as if the brick has actually fooked my phone up good and proper !

Do I have a bricked usb card?...HELP!!!!!

Hi all...bare with me here, I posted this earlier, but in the wrong forum section so I am going to start over here.....thanks for your patience....
Hi everyone...I have a problem..I tried to use the Firerat zips to increase my internal storage, and during the flash of the zip file the phone hung and I had to pull the battery out.....since then the usb wont mount.
I am using a Tmobile mytouch slide 3g.
I tried using the sdk and running the fastboot commands etc to get the sd card to mount...no go.
I have tried the fastboot oem enableqxdm 0 command and no go....
Note:..My sd card works fine in a card reader on my computer, I can drag and drop anything to it etc. etc.
Finally i downloaded the stock rom, and i was able to put it on the card, and rename it ESPRIMG.zip and installed it through recovery...My phone was rooted and S-off running ginger, but now back to stock...S-on, and hating the phone now...lol.....
I have been all over the web and I am so confused...everywhere you search there is something different, I just dont know what to do, Windows doesnt recognize the phone when plugged in so I cant load custom rom etc back on....AARGH!!!..I am so frustrated, and have a migraine messing with this damn thing.....lol...
Someone here suggested the MISC is bad and that a binary flash_img would fix it, but honestly, I have no idea what any of that means...all that means to me is confusion, and I have that already.....lol
Can someone please suggest what I may try doing?I am pretty savvy with computers but some of the adb/shell stuff is very confusing to me, I dont like cmd prompts...so maybe a detailed explanation?..
Thank you so much for taking your time to read my problem, I really appreciate it very much.....Dirtylarry
"Kharma...It's a good thing"
ok man im gonna try to understand the problem... you say your usb mount doesnt work but the sdcard works with the adapter, then you went back to stock and un-rooted and the pc doesnt recognize your phone? right?
So it looks to me (just an idea) that the problem is your cable or the port on your pc... just beacuse your sdcard IS working in your phone as well since you used the ESPRIMG.zip(wich was really unnecessary) and you flashed it using the sdcard obviously.
Now you need to find a way to root it again just like you did the first time... dont mess with the drivers since you havent changed them in your pc (i guess) and try this guide....
http://richard.gluga.com/2010/08/complete-guide-to-rooting-and-hacking.html
Now all i can say is ALWAYS DO A NANDROID BACKUP BEFORE MESSING WITH YOUR PHONE. And check the cable/ports... thats the only problem i can think of...
well the fact that I have 3 computers that all used to recoginize the phone just fine is what's weird....none of them do, nor does my usb connection on my car stereo...the computers all say "USb not recognized" etc. etc. and the car stereo says USB N/A .......So i'm just at a loss as to what is going on here....Any ideas????? Thanks much ....Dirtylarry
Try installing PDA Net. It installs USB Drivers and resets the registry. One day it would work, then the next day it didn't work, reinstalling PDA Net worked every time.
Thanks Wave_Sailor, I tried the pda net install but it wont work....Everytime I try it says that it can't handshake to the phone, and then gives me an error code 103, I have tried many many times....also, in the device manager for computer it shows a yellow Exclamation mark everytime I plug the phone in listed at "Other Devices", and says Qualcomm CDMA Technologies MSM....So I googled, and found another thread saying Install Windows mobile 6 center, so I did, and nothing changed.......ARGH....DIrtylarry
Do part III, but while the phone is unplugged, download and install HTC Sync, and then plug the phone back in.
Sent from my T-Mobile myTouch 3G Slide using Tapatalk
Ok...I did EXACTLY what you have suggested, and in the driver information box this is what I got after the install....
USB Composite device installed successfully
USB Mass Storage Device Failed
Mytouch slide tmobil installed successful
Still a no go on the Mass storage device......hmmm.....so weird of a problem to have....I would have thought that clearing everything on the phone and going back to stock would have done the trick......any more ideas?...Thanks so much for your help.....Dirty
Have you checked in device manager on your computer to see if the mass storage device has a yellow triangle? I just went through the same thing but in reverse. My pc would see the sd card while in my phone but not through the reader. I still haven't gotten it straightened out either, just learned to live with it.
dirtylarry10 said:
Ok...I did EXACTLY what you have suggested, and in the driver information box this is what I got after the install....
USB Composite device installed successfully
USB Mass Storage Device Failed
Mytouch slide tmobil installed successful
Still a no go on the Mass storage device......hmmm.....so weird of a problem to have....I would have thought that clearing everything on the phone and going back to stock would have done the trick......any more ideas?...Thanks so much for your help.....Dirty
Click to expand...
Click to collapse
Make sure you don't have any drivers disabled. Ran into that problem with a different phone. I had one driver disabled so it wouldn't install some of the other drivers.
Sent from my T-Mobile myTouch 3G Slide using Tapatalk
Ok...just checked,...no drivers disabled in device manager...has to be something wrong with phone...its a/most like the driver is missing from within the phone or something...isn't there some way to get this back to where I could root it and install a custom rom again without the USB to phone connectivity and use my card reader to get some sort of files back onto phone that way?
ok....well I re-did the whole flash process over, and I am now rooted again once more.....I dont know how or why or what...but I am now going strong again.....lol thanks for the help everyone,

[Q]USB will only charge; won't show up on pc

Hey guys,
I've had a DHD for a while, absolutely love the device, best smart phone I've ever owned. However...
Recently when I plug the usb wire into the phone, it pop's up asking if I want to charge or mount as disk drive. Tapping on disk drive the device says its in disk mode, but my PC (windows 7) doesnt see it, Nor my mac(osx snow leopard) or linux(ubuntu 10.10).
I have tried with 2 HTC wires and a blackberry wire, used numerous different roms (MIUI 1.7, RCMIX hd BLISS 1.2, CoolssS sense 3 rom, Virtuous, cm7 and another sense rom that I cant remember. One of the roms said that it did have USB issues and to add a different kernal to fix it, which didnt) with no joy. Windows 7 device manager shows the Desire HD as an unknown device and mass storage controller both with a yellow !
I've also tried uninstalling and reinstalling htc sync with no joy. Any ideas?
Searching here and google hasnt come up with anything apart from hardware fault.
If I am to take it back to my retailer under guarantee to change device, I obviously need to unroot, s-off etc again. Will installing a stock UK RUU from HTC do it all in one go? If so could anyone link me to it?
Cheers guys!
ratykat
Try restarting your computer
Sent from my Inspire 4G using XDA Premium App
All machines used have been rebooted, factory resets on phone, New roms everything I can think of
Boot into fastboot and from a windows command prompt type
fastboot oem enable qxdm 0 (press enter)
This might fix it
Sent from my Motorola Startac running Atari 2600 software!
Is it literally that simple using htc sync drivers? I will I need to mess with adb again?
Thanks mate
Edit- got adb running, but it says fastboot is an unknown command?
Attached is a zip with the fastboot.exe and the drivers if required. Extract the fastboot.exe to the tools folder of your sdk then try the command again. (Don't forget you have to select fastboot on the bootloader on your phone.)
This might not work but definitely worth a try.
Hey,
downloaded and done as you told, however fastboot is just saying "waiting for device" and the phone only says "fastboot" not "fastboot usb"
I have reverted to a completely stock rom (1.32) losing root etc. It's still s-off however I dont think the shop I bought it from would check that, and I cant s-on due to lack of USB...
*sigh* guess I gotta say goodbye to the old fella unless there are any more suggestions?
Looks like a warranty repair job. They'll probably fix it even though it's s off. I wouldn't worry aboot it too much. Sorry I can't be more helpful but it's got me stumped.
You did say you got adb working though right? If that's the case it doesn't make sense that you can't get fastboot usb.
Sent from my Motorola Startac running Atari 2600 software!
I meant adb was running on pc. Not picking up the device though
No matter what rom I am on, usb cable is detected and asks if i would like to go to diskdrive mode, which i say yes, however, any pc, be it my own, a friends, a mac or linux box all just sit there as if it cant see it. Used multiple cables too, so it must be the device. Prehaps the pins are knackered, the usb cable does wobble when its in, its not an entirely snug fit...
Have you tried a different cable? Some cables are meant for charging but don't work for data transfers. A long shot but worth a try.
Yeah I used a blackberry one that was used for data with my old 9700, and a friends HTC Desire usb cable too, which works fine with his phone on the same pc...
Bummer. Guess it needs a hardware fix then.
Sent from my Motorola Startac running Atari 2600 software!
pwraggcan said:
Have you tried a different cable? Some cables are meant for charging but don't work for data transfers. A long shot but worth a try.
Click to expand...
Click to collapse
Tyied what you suggested as I was having problems also, change of lead worked for me just now, tried a few earlier but no luck, as u say, some leads will only charge the phone
Same prob here. The phone is only charging.
Different PCs, different cables, different roms...
the adb fastboot cmd brings:
...(INFO)ERR Command Error
OKAY [ 0.007S ]
finished...
If i plug on my Desire HD (with Leedroid 4 atm) AND eject THEN the SD Card i get the Menu with the Choice of charging, HTC Sync, etc.
Now i insert the SD Card again and i have full access on it. Once. Until i unplug the cable.
I think its no HW Bug...
Anyone an idea?
Greets from Germany
I might have given the wrong fastboot command. Try this one. (the space between enable and qxdm has been removed)
fastboot oem enableqxdm 0 (press enter)
Sent from my Motorola Startac running Atari 2600 software!
Jeah, i tried this also. It succeded. Also i tried this:
http://forum.xda-developers.com/showthread.php?t=691639
/data/flash_image misc /data/mtd0.img
ends with:
"error scanning partitions" (with or without su root)
and this:
http://android.modaco.com/topic/309939-usb-brickrickrolledb0rked-fixed/
it patches, but the problem is still persistent.
After all i get access to the USB Menu and the SD Card if i eject the sdcard an replug it. I have access in fastboot mode!
I dont know what to do next...
I'm spent for ideas. Good luck and post your results for others.
Sent from my Motorola Startac running Atari 2600 software!
I have no idea anymore.
last thing is to flash the original RUU etc.
oh boy...
---------- Post added at 03:00 PM ---------- Previous post was at 02:02 PM ----------
i think the flash_image i have is for the original Desire, not the desire HD.
Is there any difference or can someone provide me a propper flash_image (if thats the Problem)?
Had this problem for a while, tryed everything nothing worked.
Htc said that I have to send it in for repair.
Same problem here, also nothing I could do to change it. Tried different cables, different computers etc. Can't send it in for repair because I have Eng S-off which I can't revert without a usb connection.

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?
Subscribed
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

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