Note 4 N910P doesn't boot and recognised as QHSUSB_BULK - Sprint Galaxy Note 4 Q&A, Help & Troubleshooting

Hi All
My note 4 (N910P) running on MM is not booting and recognised by the pc as QHSUSB_BULK
The phone started freezing lately and rebooting by itself. It is set to do automatic update so I don't know if it is bacause the lattest update.
I tried to do factory wipe but same broblem again.
I tried to flash the MM stock firmware it did not work , I tried another MM version it worked but i had the same problem freezing and rebooting by itself.
I tried Lolipop it worked good but when I updated OTA it looked the network so I wanted to go back to 5.1.1 again . and here where the phone and ODIN freezed while updating and I took the usb and cause it to not boot again.
I am attaching some pictures that I took at the first time before i started messing. I thought they might be helpfull in case i brake the phone.
I appreciate your help guys
Thank you

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Problem after rolling back to 4.4 from lollipop

I have a n910A (Note 4 AT&T). I have just got the lollipop update 2 days ago. After updating the sd-card was not working so I tried to factory reset the phone. After doing that the phone get stuck on the Samsung logo and restarting. So I tried to roll back to 4.4 kit kat with odin and the stock rom that I found here. But the phone now cannot recognize the Sim card and it is restarting every 3 minutes. Please any solution!!
I think that happened because I did something wrong with odin. The first time I tried to install the firmware I put the firmware file in the (BL) not (AP) but I didn't click on re-partion.
Deleted, sorry read that wrong

LG G3 Stuck in bootloop after Flashing Stock Rom

I flashed my LG G3 Because i felt that the sound was not working anymore and that it can be a software issue which it was a hard ware issue ( loud speaker wasnt connected because of screw) Anyways preformed the stock FW Flash following the guide that highonandroid provided to go completely back to a stock rom. After flashing i restart phone and the boot takes forever until it finally hangs on the tmobile screen. there was a point where i left it over night to see if it will turn on but it still hung for a good 8 hours. Ive done everything i can which can be that i preformed atleast hundreds of hard resets but nothing is working.. there was a point where i did manage to turn it on then i tried updating to lolipop and when it reboots the bootloop is back.. Please help!
I assume you opened the back to fix the speaker issue. Did you make sure all connectors are tight?
Pluesik said:
I flashed my LG G3 Because i felt that the sound was not working anymore and that it can be a software issue which it was a hard ware issue ( loud speaker wasnt connected because of screw) Anyways preformed the stock FW Flash following the guide that highonandroid provided to go completely back to a stock rom. After flashing i restart phone and the boot takes forever until it finally hangs on the tmobile screen. there was a point where i left it over night to see if it will turn on but it still hung for a good 8 hours. Ive done everything i can which can be that i preformed atleast hundreds of hard resets but nothing is working.. there was a point where i did manage to turn it on then i tried updating to lolipop and when it reboots the bootloop is back.. Please help!
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Hi, i have the same problem on my international D855 variant, wondering if you found a solution as i have been stuck in a bootloop for the last 5 hours :crying: :crying:
thanks in advance for your help.
Use this method for returning to stock...
[Guide] LG G3 Stock Firmware (Go Back to Stock) KDZ & TOT Method
http://forum.xda-developers.com/showthread.php?t=2785089
Same problem here, but here the device is G3 Liger F490L.

lg g3 d855 in a very strange problem

Hi
am having a very strange problem with my phone, first it was the sim not working, until I continuously remove an install it again and again,
it was first runing on android 5.0 fully OTA updated.
However in a try to resolve the problem, I connected it to LG pc suite in order to get the android 6 ! it was working for a day, but it suddendly it stopped and went OFF for ever.
Thanks to a thread here in the forum, I Hard bricked it then soft bricked it with kitkat 4.4, it worked without any problem, but when the auto updates went to lolipop 5, it stopped again.
I installed marshmallow 6 with flashtool, the phone is working with the SIM without Internet with no problem, but, when I connect it to the net, and specially when I enter my gmail account it goes to the same loop again, and I have to flash it to return back.
Please Help.
Check which version of gapps your using... That's the only thing I can think of

N5110 stuck in bootloop after battery change, need some help :(

I normally find a way around some android issues but sort of lost this time so iI need some help please!
Tablet is (was?) rooted and running cm12 plus twarp before the issue. It was running fine other than using a lot of battery.
So after replacing a battery my Note 8 N5110 started a boot loop and sometimes TWARP starts but does not work and it gets back to the boot loop!
I tried first re-load TWARP via odin and it passed but it was still in the bootloop so I tried load the stock firmware via Odin and I am getting failed with a
I have attached a picture of Twarp right before it fails, a picture of Odin with a failed attempt to load the stock firmware and the message I get on the Note 8 custom firmware screen.
Thanks in advance!!!
For the record I found a way out, the only thing that worked on my case was initialize the Tab using Samsung KIES.
Awesome software thanks Samsung, it saved my day and now....back to root and CM13 again
Hello glad you got it working. is it hard to replace the battery in these?

Help my G3 might be hardbricked (hopefully only softbrick)

Hello, I would like to ask if my LG G3 is softbricked or hardbricked. It has been a long while since it decided to boot loop. I tried to fix it but got no results. I tried to factory reset it, but the next day it didn't turn on anymore and got stuck in the logo. Note : the phone was experiencing some heating issue before it decided to screw itself up. I tried numerous troubleshooting from the net, none worked. I also did try to reinstall the firmware to stock again, it did boot but it can't get to the home screen. I then factory reset it again and tried using another firmware also built for my phone (it's LG G3 D855). It failed again at 33% while it was in the firmware update mode. Now that I have left it for a solid year, I thought that it would be nice to try again. Which I did, but it couldn't charge anymore and it cannot boot to the logo. I tried to go to the download mode but no response. I tried connecting it to my computer, but it only detects my phone as a charge only device, it also detects it on only several random occasion. I hope this is a softbrick and it can be fixed at home so I don't need to go to the store to repair it.
I'm sorry for the long explanation, I had been trying to revive it for months now and had no luck. How do I fix this, at least how do I get to the firmware update download mode again? I really really hope that anyone can help. Thankyou so much in advance.
Use my guide in this thread
https://forum.xda-developers.com/lg...w-d855-30b-t3286268/post72875603#post72875603

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