Hi,
I connected a G4 to my computer in order to backup some files, then entered the camera folder. Windows started loading the files (photos) in the folder, when the phone suddenly shut down.
Since then, it only turns on after removing and replacing the battery, but it still won't boot. I just get the LG logo, then the phone shuts down again.
I connected it to my laptop, and Windows recognized a "new device", installed some drivers, but I don't see any new storage devices, and the phone shows up in Device Manager as QHSUSB_BULK.
I'll probably have the phone repaired, but I really want to try to salvage the data first. Is there any hope? What can I do?
salvachawa said:
Hi,
I connected a G4 to my computer in order to backup some files, then entered the camera folder. Windows started loading the files (photos) in the folder, when the phone suddenly shut down.
Since then, it only turns on after removing and replacing the battery, but it still won't boot. I just get the LG logo, then the phone shuts down again.
I connected it to my laptop, and Windows recognized a "new device", installed some drivers, but I don't see any new storage devices, and the phone shows up in Device Manager as QHSUSB_BULK.
I'll probably have the phone repaired, but I really want to try to salvage the data first. Is there any hope? What can I do?
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Click to collapse
you got the bootloop issue send to LG. as for retrieivng daata.. i suggest freezer method. search and itll tell you what to do.
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I'm running cyanogenmod 7 on my evo 4g and when I plug it into a computer it only charges and never prompts me if I want to connect as a disk drive. It used to but now it just stopped. I had a backup of my rom so I put it on my girlfriends evo and hers still connected to the pc like normal but mine will not give me the option to hook up through USB. My computer says unknown device. Any help would be great. I can provide more info if you need.
More info. It gives me code 43 in windows 7. I was able to hook it up in xp but when I tried doing anything it no longer was able to detect the phone. I did a factory reset and it still doesn't work. I'm at a complete loss. I feel the only thing left to do is revert completely back to stock losing root and starting from scratch.
perhaps try completely uninstalling the device from windows in Device Manager. Then plug it in again and let it re-install the drivers
sitlet said:
perhaps try completely uninstalling the device from windows in Device Manager. Then plug it in again and let it re-install the drivers
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I've tried that on two different computers with windows 7. My gfs fone reads fine with the exact same rom but mine wont.
It seems like the drivers on the phone are corrupted or something. At one point I found a forum that suggested to turn off bluetooth and a few other things. I decided to see if turning off my wifi would do anything and finally my phone showed the usb debugging notification and the mount as usb notification but it wouldn't mount so I restarted my phone and now it's back to doing nothing but charge the phone.
The only difference between the two phones is the rom then? Perhaps make a backup and flash a different rom or re-flash your current rom to see if that helps
sitlet said:
The only difference between the two phones is the rom then? Perhaps make a backup and flash a different rom or re-flash your current rom to see if that helps
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I actually took a backup of my rom and put it on my gfs phone and hers worked. we had the exact same rom. I will try installing a different rom however and i'll let you know what happens.
Okay so I had a back up of sinister rom so I restored it and now it asks me if I want to connect as a usb device and so I do and my computer still says usb device not recognized or whatever.
Wow so I tried a backup of sinister rom that I had and suddenly it asked if i wanted to connect as a disk drive but windows was still saying usb device not recognized. I reverted all the way back to stock losing root privileges and it still doesn't work. It appears to me that it is a hardware problem. I don't know what else to do.
ok, so I hooked my phone up to a computer with ubuntu on it and my phone showed up but then when I went to explore the sd card it said permission denied. Then I hooked it up in windows 7 and it showed unknown device under universal serial bus controllers(as usual) but it also had it under modem, which is what I want.
Okay, got it working on this computer. After plugging the phone in several times it still said device not recognized. I have also been pushing ##data# and it was saying the same thing. I decided to shut my phone off one last time and when I hooked it up i pushed ##diag# and now it works. ****ing stupid. Glad it's working now.
UPDATE: Now all of the drivers install when I plug the phone in except the HTC DIAG doesn't appear even when i enter diag mode on the phone. this is the only driver i need installed but i can't install it because the computer isn't picking up that part of the device....This is getting irritating.
Turns out my port is ****ed up. I'm gonna have to order a new one and replace it.
My phone can get to the bootloader and recovery. but for somereason it won't detect any fastboot devices or adb devices. it just gives me blank. i check computer device manager, nothing shows like no "other android" exclamation mark.
i tried reinstaling adb drivers still no luck. this all happens because i went from successful groovy custom roms into marshmellow stock rom 4.21.40-223-user.zip. i tried adb sideloading the files, boot.img, etc. and something must gone wrong.
any ideas what to do? bootlooder and recovery still works, but its like the laptop can't detect the phone at all.
supaticky said:
My phone can get to the bootloader and recovery. but for somereason it won't detect any fastboot devices or adb devices. it just gives me blank. i check computer device manager, nothing shows like no "other android" exclamation mark.
i tried reinstaling adb drivers still no luck. this all happens because i went from successful groovy custom roms into marshmellow stock rom 4.21.40-223-user.zip. i tried adb sideloading the files, boot.img, etc. and something must gone wrong.
any ideas what to do? bootlooder and recovery still works, but its like the laptop can't detect the phone at all.
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in device manager where the driver gives exclamation mark. uninstall driver. then download asus usb drivers from asus website and install. if still not works. (if nothing or unknown device shows in device manager then either sim flex is bad or there is loose connection.) open device remove and reattach sim flex on both sides if still fails. replace sim flex. order from aliexpress it will be cheap but delivery takes aproxx a month
sukhwant717 said:
in device manager where the driver gives exclamation mark. uninstall driver. then download asus usb drivers from asus website and install. if still not works. (if nothing or unknown device shows in device manager then either sim flex is bad or there is loose connection.) open device remove and reattach sim flex on both sides if still fails. replace sim flex. order from aliexpress it will be cheap but delivery takes aproxx a month
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thanks for the input, i also tried 3 things:
1. sdcard- format sdcard to 32fat and put stock firmware. still can't read or "mount" file. its as if the SDcard not there. my laptop and other phone can read the sdcard.
2. apply update via adb sideload. laptop can't read or get any response. as if the phone isn't there.
3.hardbrick method- Intel Soc USB driver, 1.2 Connect Zenfone with computer IntelSoc Mode: i can't get pass this step. because it requires that "now back to the phone, hold power button for 10 seconds to shutdown completely, then press simultaneously the key "power" + "volume down", until phone vibrates. Or computer makes detection sound, wait a few seconds. it will add an item immediately below intelSoC in device manager ?MOOREFIELD? new devices is connected successful."
basicly my laptop can't detect anything from the phone through the usb. anybody else have any ideas?
ok. thanks. i went to a local repair shop. and the above guy was on point. the sim flex was bad and had to be replaced. everything works now. thank you.
So.... I've been wanting to reflash my old Nexus7 for a while now. Today when I started copying files over I started getting errors about device unreachable, device malfuctioning, then windows started giving errors, then it started refusing to detect the device at all.
Now when I plug it into the computer, I don't even get an option to choose USB for charging or file transfer, and I don't get the bleep of windows detecting a connected device.
Additionally, I can't seem to boot into recovery mode anymore.
Surprisingly the OS itself still works, I see my pictures, read my books, and I was able to back up all my **** over Wi-Fi.
Any insight into what's going on? (And if fixable?)
Hi everyone,
I did a silly thing to clear up some space and decided to delete some system apps. Well, I did delete lge-res.apk and after that some notifications popped up saying "bla bla" stopped working immediately and I tried to reboot the phone but it got stuck at the LG screen. I realized that I broke the phone, so I tried to hard reset it. When I did the hard reset operations, phone got stucked at the LG screen again. So I tried to flash the phone through my PC but there was another problem. When I put my phone into download mode and connect it to my PC, every driver gets installed except the MTP driver. So I can't flash it from my PC either.
So that's basically what my problem is. I will be so glad if anyone can help.
Thank you.
Please, I really need help about this situation of mine.
I have this phone and it completely went bonkers on my a year or so ago. The operating system seems to be completely gone. I have tried things like abd reboot recovery, etc, and options from fastboot, but nothing works.
All the phone does is instantly when I connect power is say No Valid Operating system could be found. The device will not boot. etc
I have sp flash tool, adb drivers installed, and the firmware. I think the flash tool is setup correctly too. But nothing happens when I click download (with the phone connected to computer).
I think part of the problem is the phone turns on when connected to pc, and there no way to turn it off while usb is connected.
Today I got deeper in the phone and found the test point per images and guides on google, and am very unsure how that works... I have a tiny piece of wire I could try attaching to something grounded, but how does that work... and the phone is still probably going to turn on to "No operating system found" as soon as I connect the usb as usual.
Any advice? I am completely new to this.