Save data without USB Debugging but broken screen & digitizer - Xperia Z2 Q&A, Help & Troubleshooting

hello there
so, i have a sony xperia z2 with a broken screen and digitizer. only the backlight is working and it seems to be a broken fuse (see this thread), so no way changing the screen could help. now i'm trying to save the data but every way seems to be an impasse eventually...
first thing i tried was to connect the phone to my screen with an otg adapter but i didn't get any visible result. i found an article saying that one needs to activate screen mirroring first but that was for the z2 tablet. does that apply for the phone, too or should it work and the adapter is just broken?
2nd thing i tried was to flash custom recovery hoping i could later pull the data with adb. i followed the instructions to unlock the bootloader here but appearently usb debugging needs to be activated for that, too? at least fastboot doesn't recognize any device so far.
i also tried mirroring the screen on my computer with seven-square but that too needs usb debugging.
is there any way to get the data off the phone? anything that could be worth trying?
i'm currently working on a linux mint pc but if anyone has suggestions that only work with windows that would be helpful, too since i also got windows 7.
thanks for all effort!
p.s: i'm new to this board but i promise i will regularly follow this thread and won't leave without letting you know if the problem got resolved...

Related

[Q] GTab not recognized by PC at all

First, let me say that I've searched and searched and looked for all the info I can find about people having similar problems. I've yet to find anything that works for me, and I'm at my wit's end on this...
A few days ago I tried [unsuccessfully] to update CWM on a GTab. I can't get into recovery at all now (it just hangs), but this problem predates that.
The problem I have is that I cannot get any PC to recognize the GTab - in any mode - and I've tried 4 computers with various operating systems. I've tried Fedora, Ubuntu, Windows XP and Windows 7 and none of them will see the GTab at all. They won't see it with debugging on, with it off, in APX mode or anything.
I have gone through half a dozen cables and tried every USB port I've got. It just simply will not recognize the tablet in any way.
I'm toying with the possibility that the port might be damaged, but I can't think of a good reason why that would be the case. The tablet has been well taken care of, and all the other ports work just fine (audio, USB storage, SD).
So, has anybody else run into this issue and found a fix for it?
N0ctrnl said:
I'm toying with the possibility that the port might be damaged, but I can't think of a good reason why that would be the case. The tablet has been well taken care of, and all the other ports work just fine (audio, USB storage, SD).
So, has anybody else run into this issue and found a fix for it?
Click to expand...
Click to collapse
Read: Only ClockWork recovery on boot
Check dmesg to see if tablet is detected: A self inflicted wound
Also: [Q] (really) bricked g-tab.
If you can't boot the tablet at all--into either ROM or recovery--, then there's nothing you can do if your USB isn't working. If you can boot into one of them, then there's hope.
I managed to get CWM installed (was my bad on trying to flash the wrong one to upgrade it anyway). It's always booted just fine into the ROM, and everything works but the USB connection to PC.
I am actually a Linux admin by trade, so I kept an eye on all pertinent system logs and outputs when I tried it on the Linux box. No dice.
N0ctrnl said:
I am actually a Linux admin by trade, so I kept an eye on all pertinent system logs and outputs when I tried it on the Linux box. No dice.
Click to expand...
Click to collapse
Well, you have to be careful about these things. APX mode, for instance, only "connects" to the host PC once, so if you unplug and replug hoping to see USB device recognition messages from the Linux kernel, then you will be disappointed.
What about on the gTablet? Does the kernel print anything pertinent when the cable is connected to the host PC (enable USB debugging first)? Are there any other error messages or diagnostics?
That's the troubling part. I'm finding absolutely nothing. Nothing at all to indicate there's any kind of issue. My guess at this point is that the USB port must be physically broken. I can't see any other way to make sense of it.
Here's one final suggestion: Open the gtab up and disconnect the battery. Wait 1 minute then reconnect the cable.
See if it helps. (It's for people who can't even boot the tablet into APX mode, but, try it before concluding that it is a HW problem).

[Q] USB data connection not working at all (CM 10.2)

Hi guys I'm having an issue with my GS2 i9100 after installing Cyanogenmod 10.2 using the installer on their site, I thought everything was great until i realised for some reason my phone refuses to display its storage on my windows PC, I've tried changing the different modes in the storage settings on the phone, such as MTP/PTP/Mass Storage and i've tried uninstalling and reinstalling the samsung usb driver via Kies but I still can't get it to work, is there an option I'm missing out here or is the rom at fault?
It charges perfectly fine but I am not getting any kind of prompt from either the phone or PC to activate the storage so I can copy files too/from it, it's getting quite annoying as their is alot of music/pictures/videos I want to put on the phone.
Clean install of stock to test before anything else.
MistahBungle said:
Clean install of stock to test before anything else.
Click to expand...
Click to collapse
Would it be safe to flash the stock rom using CWM6 recovery? as any tool that relies on a USB connection to the phone won't work.
Wanam has a thread in one of the Development sections with CWM flashable stock roms. I'd also be testing it with another PC to rule in/out something PC-side (if you haven't done so already). You need to be methodical with stuff like this - try stuff that rules in/out different causes.
Edit - You could also just take the punt it is the USB board in the phone on the fritz & replace it regardless, which is very cheap & easy to do if you're somewhat handy. KeithRoss39 has a guide in General (search for 'Replacing USB charger board') which has all the info you need if you decide to do this (will cost you a tenner).
In trying the things I've mentioned so far, that's what we're trying to ascertain; whether the board is faulty or not (common S2 fault, almost always shows a few faults but works OK in other ways). Put it this way, if you try those things I've suggested and you're still seeing the same, it's almost certainly the USB board.
In the meantime, use WiFi to get stuff off/on the phone if you need to (plenty of apps on GP enable this if you've never used it).
Sorry for the incredibly late reply, I've changed phones since, but I wanted to update this thread anyway, it turns out re-flashing cyanogenmod after replacing the pcb fixed the issue completely, installing it when i had the dodgy usb pcb must have made it not properly install the USB drivers or something

Nexus 9, no OS, only TWRP, and can't connect to PC

So... now that I think with hindsight, I did something pretty stupid, and I'm going to need some help, since I have no idea what to do.
I have a Nexus 9 tablet, and I never liked it. The OS is just so slow and laggy, and it overheats, and it has many other problems. Quite a couple of times, I installed custom ROM's and so on, and I never had a problem. Let me explain what I did now.
Around a month ago, while looking on the internet, I heard this thing that if I install the original software, but with no encryption, it would work better. It sounded cool at the time, so I downloaded the Nexus Root Toolkit, and did it.
Everything went well. But then I heard about a custom ROM that was apparently working even better, Dirty Unicorns, so using the same toolkit, I installed it. For the first time, my Nexus 9 actually worked the way it is supposed to work, but the custom ROM still had its problems, it crashed from time to time. I was thinking about possibly returning or selling the tablet, so that's why using the Toolkit, I reinstalled the original software. But, if I went all the steps, and also locked the OEM, my device then showed a flag saying that it was a development device, while booting up. So, after messing around with the settings of the Toolkit a little, I decided to reinstall the software, but leave the bootloader unlocked.
But after some time, I reinstalled my Windows, and I also reinstalled the Toolkit. But that's when I started to have problems. My tablet wouldn't connect to my laptop anymore. I used the toolkit and uninstalled drivers, reinstalling others quite a couple of times, and that's where I think that I messed something up. I managed to eventually connect my tablet, and I rooted it, after rooting it, I connected it again. But adb wasn't working for some reason. A little annoyed, I simply copy pasted the zip file of CM13 into my tablet's internal storage, and I rebooted it to the recovery, TWRP. But the recovery failed to flash it, saying something about an Error 7.
Now that I think about it, I was stupid, since after that, I performed a complete factory reset, resetting my TWRP backup too. I tried to connect it again, nothing. It didn't connect at all. I plug it in, my computer doesn't even recognize that something is plugged in. No Nexus 9, no Android Device, no anything. I booted it in fastboot mode, and it worked, my computer recognized it, and after I downloaded a ROM zip file again, I tried to connect the tablet back and flash it manually, but nothing. It didn't recognize anything anymore.
I tried to reinstall the drivers countless times. I deleted what I had, reinstalled it, nothing. I uninstalled and reinstalled the Toolkit. But strangely, now, even if I know that I installed the Google USB drivers, and the ADB drivers, as I even installed Android SDK, if I use USB Deview, it doesn't show me any of them. I can't see any Google or ADB drivers, although I tried installing them multiple times. So now, I'm stuck with a tablet with TWRP and no OS, which I can't connect to my PC, and I can't use ADB or fastboot.
Is it something from my laptop? I can't check to see if it will connect to another PC right now, so I don't know for sure. Is there any way to delete all the traces from my (failed) attempts at reinstalling the drivers, and to install them again properly? Or is it something from the tablet itself? I don't have an OS, so I can't enable USB debugging.
So, shortly, I have no idea what's happening. And I'm quite obviously a noob in all of these. Can anyone help me? Please?
If you boot into the bootloader and from a command prompt type fastboot devices you don't get anything?
Sent from my Nexus 9 using XDA-Developers mobile app
I still couldn't get ADB to work, but I managed to work out fastboot. It may be something from my USB cable, it works perfectly.
I flashed the original software back, and I'll go to check my cable, although I feel kinda stupid that I didn't think about that in the first place.
Thanks for the help anyway.
If fastboot is working and bootloader is unlocked, you can still install a factory image.
Depending of your device download for wifi Version:
https://dl.google.com/dl/android/aosp/volantis-mob30p-factory-2cb57a1b.tgz
If you habe the LTE variant:
https://dl.google.com/dl/android/aosp/volantisg-mob30p-factory-ae9ce05a.tgz
Extract the files and put them into the same directory link fastboot and execute the flash-all.bat
WARNING: Any data will be erased!!! Also TWRP
Now it should boot up with stock firmware.
If you want your device decrypted install twrp. format the internal storage and flash the pure nexus rom which i can highly recommend and is decrypted by default. Dont forget do flash gapps
my issue is same
what if someone USB- debug is not enabled , is there any possibility to do that , i have a device nexus 9 , rooted it it went into bootloop then i factory reset it , and now my adb is not communicating , if there is any options?
rohanzakie said:
what if someone USB- debug is not enabled , is there any possibility to do that , i have a device nexus 9 , rooted it it went into bootloop then i factory reset it , and now my adb is not communicating , if there is any options?
Click to expand...
Click to collapse
Use fastboot, not adb.
what if fastboot isn't working, either?
uberSkeptic said:
what if fastboot isn't working, either?
Click to expand...
Click to collapse
Is the tablet in fastboot mode?
madbat99 said:
Is the tablet in fastboot mode?
Click to expand...
Click to collapse
Yup. I can boot into the bootloader, and from there (or from TWRP) into fastboot, but no computer I've connected it to (and I've tried many) will recognize it. Doesn't show up in Device Manger or lsusb, doesn't show up from either "adb devices" or "fastboot list devices" (the latter just hangs there saying "Waiting for any device"). The USB on the tablet itself is fine, and I even replaced the USB daughter-board just to be safe.
uberSkeptic said:
Yup. I can boot into the bootloader, and from there (or from TWRP) into fastboot, but no computer I've connected it to (and I've tried many) will recognize it. Doesn't show up in Device Manger or lsusb, doesn't show up from either "adb devices" or "fastboot list devices" (the latter just hangs there saying "Waiting for any device"). The USB on the tablet itself is fine, and I even replaced the USB daughter-board just to be safe.
Click to expand...
Click to collapse
Hi, uberSkeptic...
Just a quick thought... Have you tried a different USB cable?
Rgrds,
Ged.
Edit & Additional...
The command is not fastboot list devices... it's fastboot devices
One last point... Ensure your Nexus 9 is definitely booted into fastboot mode and not just HBOOT (the bootloader). Take a look at the two screenshots below - your Nexus 9 should look like the screenshot on the right, the one with my green explanatory text.
Apologies for the poor image quality; there's no way of taking a screenshot in the bootloader, so I had to take photographs instead.
Hope this helps and good luck.
Thanks for the advice and going so far as to photograph the hboot/fastboot screens, but unfortunately I have indeed tried multiple USB cables, including the OEM's and I've definitely successfully gotten the tablet into fastboot but it doesn't show on the computer with either fastboot command (devices or devices list).
uberSkeptic said:
Thanks for the advice and going so far as to photograph the hboot/fastboot screens, but unfortunately I have indeed tried multiple USB cables, including the OEM's and I've definitely successfully gotten the tablet into fastboot but it doesn't show on the computer with either fastboot command (devices or devices list).
Click to expand...
Click to collapse
I'm out of ideas then.
One of my first thoughts was possible Windows driver problems, but as you mentioned you'd tried it on several different computers, that didn't seem to be a likely cause of the problem - I mean, you'd expect at least one of 'em to work! Maybe somebody else can help with a solution.
GedBlake said:
I'm out of ideas then.
One of my first thoughts was possible Windows driver problems, but as you mentioned you'd tried it on several different computers, that didn't seem to be a likely cause of the problem - I mean, you'd expect at least one of 'em to work! Maybe somebody else can help with a solution.
Click to expand...
Click to collapse
Sadly, me too. I even tried using a flash drive with a micro-USB connector on it, which I used to use to do nandroid backups, but now TWRP doesn't even "notice" that the USB drive is there (or any USB drive connected via an OTG cable).
Too bad, too - the tablet is otherwise in great condition and even has a custom-painted backplate (long story).
Thanks for trying to help, though!
uberSkeptic said:
...The USB on the tablet itself is fine, and I even replaced the USB daughter-board just to be safe.
Click to expand...
Click to collapse
Mmm...
uberSkeptic said:
...I even tried using a flash drive with a micro-USB connector on it, which I used to use to do nandroid backups, but now TWRP doesn't even "notice" that the USB drive is there (or any USB drive connected via an OTG cable).
Click to expand...
Click to collapse
Mmm... (scratches head, raises eyebrow quizzically)...
If I was Hercule Poirot and this was a murder case, and with all the suspects gathered in one room, prior to revealing a brilliant deduction... I'd be casting very dark glances in the direction of your Nexus 9's USB port right now as the likely culprit here.
Think about it. Different computers. Different USB cables. An OTG cable... And none of them work. What's the one thing they all have in common?
Answer: The USB port on the Nexus 9 itself, and where you've replaced the USB daughter-board.
Maybe, possibly, that replacement don't go so well. Maybe there's some unknown problem with it. I can't comment too much on this, 'cos it outside the scope of my knowledge - I'm a software guy; circuit boards and dismantling devices to fix 'em isn't something I'm comfortable with. I always think I'm going to damage something or rip a wire out somewhere, so I bow to your superior knowledge in this area, as I may be talking complete cobblers here. It certainly wouldn't be the first time.
Anyway... Sorry I wasn't able to help find a working solution for you. If anything occurs to me that might help, I'll be sure to let you know.
Rgrds,
Ged.
I would be suspect if the replacement as well if it weren't for the fact that I did it only AFTER the other symptoms/problems appeared. Hence the replacement (which is known good because the battery charges no problem). There cables and everything inside the tablet tests just fine... It feels like the firmware for USB is somehow corrupt or something.
Thanks for all the advice, though. ?
So I can't believe I didn't think of this before, but when I run "dmesg" from the terminal app included w/ TWRP, I see that there a TON of errors, mostly referencing problems accessing the recovery image. I could screenshot it, if anyone at all might be able to tell me a little more specifically what the dmesg log is trying to tell me...

Android Stuck in Charging only mode - No connection to computer

Hello Everyone
I am putting my problem in this general section with the hope to ask for help to more people compared to the Mate 8 section where not a lot of people go these days.
Since a while I am not able to connect my phone to a laptop. If I connect it to a laptop it just starts charging but nothing else. I have tried everything like:
Changing Cables (tried more than 5. I dont have the original anymore)
Changing Laptops
Changing the USB port of the phone itself
Updating Drivers
Installing Hisuite (current version 5.0.3.300)
Restore phone to factory settings
Complete formatting
Updating to the latest version (Current version Nxt-L29C185B582)
Changing the USB debugging/ Connection (MTP/PTP/etc)
And what not
The problem is, it doesnt get detected on the computer and cant connect to adb as well. All I want is to unlock bootloader and Install TWRP and Magisk. I have the unlock bootloader code but no way to unlock it since I cant connect.
Can anyone help me in fixing this stupid problem ? It is getting frustrating. If there is a hardware issue, what part needs to be replaced? Any help would be appreciated.
USB connection icon on top of the phone when connecting laptop
gandotratushar said:
Hello Everyone
I am putting my problem in this general section with the hope to ask for help to more people compared to the Mate 8 section where not a lot of people go these days.
Since a while I am not able to connect my phone to a laptop. If I connect it to a laptop it just starts charging but nothing else. I have tried everything like:
Changing Cables (tried more than 5. I dont have the original anymore)
Changing Laptops
Changing the USB port of the phone itself
Updating Drivers
Installing Hisuite (current version 5.0.3.300)
Restore phone to factory settings
Complete formatting
Updating to the latest version (Current version Nxt-L29C185B582)
Changing the USB debugging/ Connection (MTP/PTP/etc)
And what not
The problem is, it doesnt get detected on the computer and cant connect to adb as well. All I want is to unlock bootloader and Install TWRP and Magisk. I have the unlock bootloader code but no way to unlock it since I cant connect.
Can anyone help me in fixing this stupid problem ? It is getting frustrating. If there is a hardware issue, what part needs to be replaced? Any help would be appreciated.
Click to expand...
Click to collapse
Go to the Settings of your phone---> About phone----> Build number tap this 7 to 8 times-----> Developers option is enabled----> back to settings ----> go to developers option ----> enable USB debugging.
When you connect to the phone to the laptop you will find an icon on top of the screen of your phone with a USB mark "like a trident", pull down the top menu and find the USB connection tab, (like changing the sim card if you intend to call through a specific card) e.g quoted, double tap the USB tab to obtain options ---> 3 options 1) MTP 2)PTP 3) USB charging only----> select the first option MTP (Media transfer protocol).
Now connect to the laptop you will find exclamation marks in the device manager of your laptop. Load the appropriate drivers on your computer and viola! this will establish connection with the device you are having. if you find difficulty in installing USB drivers, search the thread "Attempt to load USB drivers for Micromax E484 on win XP is a fiasco" in this forum. You will find the solution for USB drivers
http://forum.xda-developers.com/android/help/attempt-to-load-usb-drivers-micromax-t3696432
Regards,
689alza
Thanks for your reply
Go to the Settings of your phone---> About phone----> Build number tap this 7 to 8 times-----> Developers option is enabled----> back to settings ----> go to developers option ----> enable USB debugging.
Already Tried
When you connect to the phone to the laptop you will find an icon on top of the screen of your phone with a USB mark "like a trident", pull down the top menu and find the USB connection tab, (like changing the sim card if you intend to call through a specific card) e.g quoted, double tap the USB tab to obtain options ---> 3 options 1) MTP 2)PTP 3) USB charging only----> select the first option MTP (Media transfer protocol).
Already tried too
Now connect to the laptop you will find exclamation marks in the device manager of your laptop. Load the appropriate drivers on your computer and viola! this will establish connection with the device you are having. if you find difficulty in installing USB drivers, search the thread "Loading USB drivers in Win XP turned to be a fiasco"
Nope. Doesnt happen
When i connect with the laptop, my laptop doesnt even make that sound for the connection.
What is the model and OS version of the device and the model and OS version of the computer? According to your symptoms your phone appears to be in option 3) USB charging only. The phone will not be detected by your laptop or the like(Computer) in this mode. Merely remains in a charging state. Are you certain the option 1) is picked MTP? If the phone is not detected there appears to be some hardware failure, try another USB port to connect to the laptop. if all else fail a service technician will pinpoint the fault. It may perhaps be a data transmission failure of the devices port to the interior of the phone. This is merely an assumption.
best remedy would be a service technician.
Hope this helps
689alza
alza689 said:
What is the model and OS version of the device and the model and OS version of the computer? According to your symptoms your phone appears to be in option 3) USB charging only. The phone will not be detected by your laptop or the like(Computer) in this mode. Merely remains in a charging state. Are you certain the option 1) is picked MTP? If the phone is not detected there appears to be some hardware failure, try another USB port to connect to the laptop. if all else fail a service technician will pinpoint the fault. It may perhaps be a data transmission failure of the devices port to the interior of the phone. This is merely an assumption.
best remedy would be a service technician.
Hope this helps
689alza
Click to expand...
Click to collapse
I have tried changing the usb charging only to all possible options but it still is the same. I tested in Linux and when I connect the phone nothing shows up in the logs. It's like it's not being connected . I have tried changing the usb port itself from the phone but it remained the same.. can the flex cable be a problem ? Mate series was never launched in India so I don't have any help from the service centre. I have to order the spare from eBay.com so there is no qualified technician who can help.. that's why I have to fix it myself somehow..
Thank you for your help
gandotratushar said:
I have tried changing the usb charging only to all possible options but it still is the same. I tested in Linux and when I connect the phone nothing shows up in the logs. It's like it's not being connected . I have tried changing the usb port itself from the phone but it remained the same.. can the flex cable be a problem ? Mate series was never launched in India so I don't have any help from the service centre. I have to order the spare from eBay.com so there is no qualified technician who can help.. that's why I have to fix it myself somehow..
Thank you for your help
Click to expand...
Click to collapse
I quite doubt the cable will be the culprit as your device charges the battery while in an established connection with the laptop. As you state the phone USB port was replaced, it could be a some glitch before the USB port in the device where there is an interruption in the data transmission signal that cannot be detected by your laptop.
Could you boot your device, computer and connect the two and take a snapshot of your device (whilst connected to the laptop) and paste the same in the forum?
Perhaps visual cue could be better at dealing such mishaps.
alza689 said:
I quite doubt the cable will be the culprit as your device charges the battery while in an established connection with the laptop. As you state the phone USB port was replaced, it could be a some glitch before the USB port in the device where there is an interruption in the data transmission signal that cannot be detected by your laptop.
Could you boot your device, computer and connect the two and take a snapshot of your device (whilst connected to the laptop) and paste the same in the forum?
Perhaps visual cue could be better at dealing such mishaps.
Click to expand...
Click to collapse
Yes of course. It is connected to a computer now. You can see it getting charged but that's about it
alza689 said:
I quite doubt the cable will be the culprit as your device charges the battery while in an established connection with the laptop. As you state the phone USB port was replaced, it could be a some glitch before the USB port in the device where there is an interruption in the data transmission signal that cannot be detected by your laptop.
Could you boot your device, computer and connect the two and take a snapshot of your device (whilst connected to the laptop) and paste the same in the forum?
Perhaps visual cue could be better at dealing such mishaps.
Click to expand...
Click to collapse
Can it be something because of some wrong flash ? This problem has survived through 2 versions and 1 system upgrade through firmware finder .. and a complete format
USB trident is not seen on the device
gandotratushar said:
Yes of course. It is connected to a computer now. You can see it getting charged but that's about it
Click to expand...
Click to collapse
Your USB trident icon is not indicated on the device, If you were to receive power from the laptop the trident would be displayed on top of the screen, even for charging the battery. The power source for your device appears to from other than the laptop.
I have pasted my device after connecting to the computer and the second icon from the top left is the USB Trident icon indicating connection with my laptop. Have taken the snapshot of the menu that I was describing .
I strongly feel you have a hardware failure rather than a simple fix and would require the help of a technician (ordinary if professional is unavailable). Am skeptic you could mend that on your own unless you are proficient in electronics. This mishap is not due to flashing wrongly too, unless you have changed the stock ROM with some custom ROM which has some bug that affect the USB alone.
Take the assistance of a technician whether professional or less is my counsel
Thank you
alza689 said:
Your USB trident icon is not indicated on the device, If you were to receive power from the laptop the trident would be displayed on top of the screen, even for charging the battery. The power source for your device appears to from other than the laptop.
I have pasted my device after connecting to the computer and the second icon from the top left is the USB Trident icon indicating connection with my laptop. Have taken the snapshot of the menu that I was describing .
I strongly feel you have a hardware failure rather than a simple fix and would require the help of a technician (ordinary if professional is unavailable). Am skeptic you could mend that on your own unless you are proficient in electronics. This mishap is not due to flashing wrongly too, unless you have changed the stock ROM with some custom ROM which has some bug that affect the USB alone.
Take the assistance of a technician whether professional or less is my counsel
Thank you
Click to expand...
Click to collapse
I did flash a different rom .. but then back to stock recently.
I can do basic electronics but the if the problem lies in Mobo .. then nothing can be done .. as I don't have the spares available in India. But I would hate to lose this phone as it was a perfect fit for my needs
gandotratushar said:
I did flash a different rom .. but then back to stock recently.
Then the question of wrong flash or ROM issue does not arise
I can do basic electronics but the if the problem lies in Mobo .. then nothing can be done .. as I don't have the spares available in India.
If you do not have spares is best left alone rather than tampering with it and rendering the device useless if any untoward incidents tends to occur.
But I would hate to lose this phone as it was a perfect fit for my needs
Send to the vendor directly if you have warranty for the device stating its complaints or request your relative or friends who live in the area where you bought your phone to hand it to the vendor or service technician and bear its expenses
Click to expand...
Click to collapse
Thank you
alza689 said:
Thank you
Click to expand...
Click to collapse
Is there a way to unlock bootloader somehow without connecting to usb ? That would also solve the purpose.. I want to root it for some of the things to work and with the latest upgrade to latest version I lost the unlocked bootloader and root.. if somehow I can unlock and root .. I should be fine without the usb connection to computer.. but I have ran out of ways
Does Kingroot work for you?
I mean did u try it or u just want magisk?
If u didn't, kingroot may be able to root ur device and unlock ur bootloader, then u can flash TWRP using rasher.. & make a backup BTW...
After that, try using the adb sideload in TWRP to test ur connection with ur computer.
TWRP for ur device : (q.gs/DxuAH)
There is a way to unlock bootloader without USB via developers option.
Go to settings-----> About phone-----> Build number ( Tap this option around 7 or 8 times) till developers option is enabled------> go back to settings-----> developers option-----> OEM unlock option (Enable this option) to unlock the bootloader.
Xeedius said:
Does Kingroot work for you?
I mean did u try it or u just want magisk?
If u didn't, kingroot may be able to root ur device and unlock ur bootloader, then u can flash TWRP using rasher.. & make a backup BTW...
After that, try using the adb sideload in TWRP to test ur connection with ur computer.
TWRP for ur device : (q.gs/DxuAH)
Click to expand...
Click to collapse
Thank you for the advice.. I hadn't tried it earlier but after your suggestion I did.. kingroot says I need to unlock my bootloader to root it.. so I am back to square one..
alza689 said:
There is a way to unlock bootloader without USB via developers option.
Go to settings-----> About phone-----> Build number ( Tap this option around 7 or 8 times) till developers option is enabled------> go back to settings-----> developers option-----> OEM unlock option (Enable this option) to unlock the bootloader.
Click to expand...
Click to collapse
This gives me an frp unlock and not a phone unlock.. still not able to root
There is no FRP unlock.
gandotratushar said:
This gives me an frp unlock and not a phone unlock.. still not able to root
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There is no FRP unlock, to circumvent FRP you need to factory reset or flash your firmware. The above quotation was to unlock the boot loader as you cannot access through your computer. Your sole option to unlock boot loader was through the above directions.
Moreover, King root application never ask for boot loader to be unlocked. Although a little unstable this is the initial program to root any device. Once you have the TWRP setup then you could switch to Super Su etc. according to your preference.
Could you paste your developers option snapshot here...
Regards,
689alza
gays
me too have this problem ( only usb port for charge and other option's not work)
and i want back to orignal system
and i want know how download orignal system (from Huawei web site) to my phone
can any one help me how
or how can fixed this problem
and i have other problem
when i try to boot to TWRP phone stay on " your device is booting now..."
so any one can help me how reinstall TWRP without PC or why this problem ??
TWRP is not installed duly on your phone
Hello! Omar Dahy,
OmarDahy said:
gays
me too have this problem ( only usb port for charge and other option's not work)
Connect your phone to your computer or laptop, a trident icon appears on your phone notification area, pull down the notifications and identify the notice as USB connection, tap twice you willk be provided with options.
and i want back to orignal system
and i want know how download orignal system (from Huawei web site) to my phone
My phone was Micromax and I am not aware of your phone's firmware, try and google or search the Xda developers forum under your phones model number for the original firmware.
can any one help me how
or how can fixed this problem
and i have other problem
when i try to boot to TWRP phone stay on " your device is booting now..."
Your phone has not installed TWRP duly, therefore it boots straight to the system. Search again in this XDA forum, with your pnone name and model number to obtain instructions
so any one can help me how reinstall TWRP without PC or why this problem ??
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Click to collapse

How to Shut Off: Usb connection "allow this computer to access your phone data?" CANCEL/ALLOW

Good Morning Ladies and Gents;
I am working with an LG G4 H811 (T-Mobile) on 20v (MM 6.0), which I would like to root. I have unlocked the bootloader, which is confirmed every time I start the phone. I then tried to root using LGUP, but the phone wasn't recognized, so I did an error recovery reinstall in LG Bridge, thinking a fresh software install would re-align things.
Now, whenever I connect the phone to the computer, I get a pop-up window on the phone saying "USB Connection - Allow this computer to access your phone data?" CANCEL/ALLOW and the phone does not show up on the PC screen or in Device Drivers until I tap "ALLOW". Therefore, it is not recognized by any software without tapping ALLOW.
More than an inconvenience, this effectively prevents me from any mods on the phone, because I need to shut off the phone and disconnect from the USB port, then reconnect with Volume UP pressed to get to download, and in download mode I have no access to ALLOW the USB connection, so neither ADB nor FastBoot recognize any devices, and the phone is not included in Device Manager.
Of course, the bootloader is unlocked, Developer Options enabled, OEM Unlock on, USB Debugging on. I am using an original LG USB cable. I have tried 4 different computers and three different sets of drivers. I've tried older drivers on older and newer computers, and vice-versa, for every combination available. Each time, I plug in the phone after a fresh computer install and let it install it's own drivers. Two of the computers are Windows 7, two are Windows 10. I've tried connecting in MTP mode and PTP mode, with no difference. I've removed the SD card in case it was affecting things, and done a factory reset on the phone. Auto Play options have been set on the PC to "Do Nothing". I've searched the internet and this forum without results.
Basically, I've spent two days on this before asking for help. Has anyone else had this experience and solved it with something other than drivers? I think I've just about run out of ideas! Thanks.
I don't root however it's probably Developer options>usb default settings>usb tethering
Try connecting directly from Disk Management on the PC. Use the scan for new drives option if it's not visible.
Thanks buddy, appreciate you trying to help out.
Tethering is a way to allow a device connected to your phone to use the phone's data connections. In the tethering instructions:
"You may not be able to access the data files stored in the phone's memory, such as pictures, music etc, or transfer such files between your phone and your PC when USB tethering is on"
However, its worth a try - so I set up tethering, unplugged the phone and plugged it in again - the same Cancel/Allow screen came up, and no device in DM until I tapped Allow.
I then opened Disk Management and plugged in the phone. I still get the Cancel/Allow screen, and rescanning devices didn't show anything new, because the phone is not in the Device Manager until I tap Allow.
The key here is finding out why the phone or computer do not store the "Allow" command. Normally, the phone will show this screen the first time you plug it into a computer, and when you tap Allow, it will store that someplace such that the phone and computer are recognized as safe devices. You should never have to see the permission screen again. My challenge is that I don't know where that permission is stored - is it on the phone, the computer, attached to the driver? Don't know. And I don't know why it's not being saved. If I had those answers, I could probably edit the registry (or whatever) to make this a permanent attachment.
Thanks!
You're welcome.
Maybe debug mode?
Try turning off Developer options.
Obviously there is a way, sorry but I never had to use that function.
Try some Google searches which is how I usually find answers and/or by just playing with it
Well, I wouldn't be able to communicate via ADB with Developer Options off. And I spent two days searching the internet before coming here, and all I found was people updating their drivers, which is why I tried so many combinations of Windows versions and drivers versions.
I'm actually kind of surprised that this seems to be such a unique problem, I was hoping someone would notice the post who had actually had a similar problem and fixed it. But I do appreciate you trying to help!
Sorry I can't help, but I never choose to root.
It's time sucking black holes like this that I deliberately want to avoid.
At least you didn't brick it...
ha ha... you got that exactly right! Every time I do this I end up spending DAYS trying to get up to date on everything that has changed since my last phone!
Well, I appreciate you taking time to try to help.

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