Hello all,
I have big problems with my L7 P700.
I rooted it two month ago, even that time I was stuck at yellow emergency mode, but using some instruction (disable LG modem) I was able to boot phone again.
Today I believe I have totally different problem.
What I did, I found stock firmware 4.1.2 and LG drivers, I installed it. Restarted phone and pressed Volume UP + Power. Phone went to yellow emergency mode, ok... Then I tried to use KDZ_FW_EN, phone was not seen. I restarted it and it booted ok to system. Turned of again, went to emergency mode than I opened KDZ_FW_EN again. I tried to read phone information, the program chrashed. I opened it again and tried to flash firmware. There were errors, and I am pretty sure phone wasn't even properly connected to PC!
So if you don't understand me I will repeat again.
I went to emergency mode WITHOUT USB DEBUGGING ON (I disabled it one day, I remember, this time I forget to turn it on). So Under device manager I see only USB composite device and LG Modem, disabling modem isn't a fix (like two month ago when I rooted). This time I can't use any of flashing tools cos I am not in debugging mode =(. The only thing I don't understand is how I was able to destroy my phone if it wasn't even flashing it (port number was -1, some wparam 100-1000 errors, i closed program in the middle but it wasn flashing if I wasn't in debug mode?)
Phone is rooted and stuck at emergency mode, without usb debugging and hard reset bring the emergency on (BOTH VOLUME BUTTONS + MENU)
Anyone?
Yes, I had the same problem a few months ago. Try install firmware stock V20D without battery and then connect phone via cable USB to PC but turning on Emergency Mode. Next, 3GQCT and CS EMERGENCY. Of course you can change port USB. Try reinstall KDZ and drivers. If you have Windows Vista then that's the problem. I'm sure that this situation will be resolve.
Ok I made it!
Don't know how, maybe it was working all the time. I've seen that phone is connected thru Ports (COM & LPT). Opened KDZ again, even that the install for firmware usb driver failed. I again tried to flash, again there were errors (wparam,...) and port -1?, I just left phone connected, yesterday I unplugged it! After 10minutes phone restarted and here is 4.1.2 and all the data is here!
Don't know what I was doing =)
Thread can be closed now!
Great!
Hi, background is this..
I have a D802-10C G2 that i rooted the stock 4.2.2 rom a while back using the post chinese method. Easy enough, all worked fine. no complaints. A couple of weeks ago i got offered the OTA 4.4 update, this failed due to the root. I then removed the root using the feature in super su. that seems to have worked as no apps or file managers etc could get root access. However, the OTA still wont work.
Now my problem is my phone will no longer be recognized by any operating system, on multiple computers. I have tried many ADB drivers, Windows 7 wont even detect the device, i've used every PC connect mode, USB debugging. However always the same result, it's as if i'm plugging in a blank usb cable into the computer. Nothing at all.
The only thing that does happen when i connect the phone to a computer is the phone starts to trickle charge. There is nothing detected in Device Manager in Windows 7 I've tried connecting in download mode, nothing. I've tried the LG support tool, PC sync. Nothing.
WiFi does connect to the PC suite fine BTW and other than that the phone is working perfectly. I've also tried connecting multiple usb cables on multiple ports.
I haven't been able to find a single case of the same problem in the week or so i've been looking. Hoping someone can help, i'm thinking i may have soft bricked my phone. I really do not think this is a driver issue.
Any help would be great. cheers
Paul
+1
i have the same problem plz help
cambies said:
Hi, background is this..
I have a D802-10C G2 that i rooted the stock 4.2.2 rom a while back using the post chinese method. Easy enough, all worked fine. no complaints. A couple of weeks ago i got offered the OTA 4.4 update, this failed due to the root. I then removed the root using the feature in super su. that seems to have worked as no apps or file managers etc could get root access. However, the OTA still wont work.
Now my problem is my phone will no longer be recognized by any operating system, on multiple computers. I have tried many ADB drivers, Windows 7 wont even detect the device, i've used every PC connect mode, USB debugging. However always the same result, it's as if i'm plugging in a blank usb cable into the computer. Nothing at all.
The only thing that does happen when i connect the phone to a computer is the phone starts to trickle charge. There is nothing detected in Device Manager in Windows 7 I've tried connecting in download mode, nothing. I've tried the LG support tool, PC sync. Nothing.
WiFi does connect to the PC suite fine BTW and other than that the phone is working perfectly. I've also tried connecting multiple usb cables on multiple ports.
I haven't been able to find a single case of the same problem in the week or so i've been looking. Hoping someone can help, i'm thinking i may have soft bricked my phone. I really do not think this is a driver issue.
Any help would be great. cheers
Paul
Click to expand...
Click to collapse
YOu can try checking the device manager or use other USB port on your phone.
buenarc said:
YOu can try checking the device manager or use other USB port on your phone.
Click to expand...
Click to collapse
The problem is not like the usual ones you will see about "computer not being able to see device" I don't think it's a driver or software issue, or if it is it's unlike any i have found in the weeks i've been searching the net for a solution. Here's why....
When i connect the phone to Windows 7 and 8 ( on 3 different computers) No hardware is detected, nothing in the Device Manager, no yellow question marks indicating 'Unknown Hardware'. Nothing, all it does is start trickle charging.
Now even with no ADB, or any driver at all installed, the computer should still detect the phone. Mine does not.
The same thing happens using OSX and Linux Mint 16 (again multiple computers) No devices or mounted or volumes shown at all. Linux terminal command "$ lsusb" does not list my hardware.
This is why i'm pretty much convinced that there is something wrong with the USB port on the phone. Because, if Linux can't see it then surely it's a hardware problem right?
The only other thing i can think of is, i have messed up the phones firmware while trying to unroot it? but only because the timing of all this is just too uncanny.
I think i'll have to suck it up and admit defeat here. Funny thing is the phone works perfectly and charges fine.
Stuck on 4.2 , with no ADB functionality. Perhaps i'll sell it cheap to someone who doesn't care.
Cheers for the reply mate.
Same problem here!
Only my G2 is not rooted, it is still on factory OS and recently updated to 4.4.2.
I have tried on several computers, different ports and no help.
On the first connection to a PC not connected before windows reports "USB device not recognized" problem.
After that every time I connect the phone to the same computer the phone itself only recognizes that it is using USB charging mode, it does not recognize the computer connection (known by the USB ison on android system tray) even with "Ask upon connection option checked".
Even when I manualy change the Android mode in Settings --> PC Connection from MTP to PTP or even LG software, nothing happens.
Definetly there seems to be a problem with the phone, but I don't beleive it's a software but a firmware problem.
Please help if anyone knows what to do.
same thing happened after installing T-mobile rom thrugh twrp. but my device boots into fastboot and i tryed falshing :
laf.img, boot.img, aboot.img, recovery.img, laf.img
but after reboot my LS980 dissapear from device manager and stucked on LG logo.
Dont know what to do now.
I'm no expert, but given there are a lot of them here and none have weighed in on this with any ideas for a fix, i'm going to assume it's a hardware problem.
Anyone else agree? Hardware problem not software?
Cheers
I guess that you already wiped everything right? Apart from that, i'll suggest you to go to some tech supp and ask them if they can verify that each pin of the micro usb is properly working.
Sorry for my english, hope it helps!
Sent from my LG-D802 using XDA Free mobile app
I will try to check the connector although i dont think that it is a hardware issue.
BTW I can enter the download mode after flashing the mentioned partitions and i can also enter the stock LG recovery but when i do the factory reset it keeps showing Factory reset processing ... for ever
It has happened to me the same thing :crying:, and is a problem with the boot.img, if by chance your G2 version 4.4.2 and the the 4.2.2 boot.img, goodbye.
The only solution is to take it to repair a service official, there will change you the card, with the consequent change of IMEI.quent change of IMEI.
Homero2 said:
It has happened to me the same thing :crying:, and is a problem with the boot.img, if by chance your G2 version 4.4.2 and the the 4.2.2 boot.img, goodbye.
The only solution is to take it to repair a service official, there will change you the card, with the consequent change of IMEI.quent change of IMEI.
Click to expand...
Click to collapse
where are you going to repair your G2?
and how much have you paid the repair?
THANKS
Any fix for this guys i have same problem!
Here I'm getting the yellow !, any suggestion?
Sirs, I flashed the baseband (https://www.androidfilehost.com/?w=files&flid=12880) then it got working back.
solved for me
I have some kinds of that problem, let try:
Settings -> General -> PC Connection -> Select USB connection method -> Media device (MTP) (or whatever)
Got this same issue after flashing cloudy g3 rom. Then later flashing dirty unicorns, which requires jelly bean baseband. But even restoring g3 and 24a baseband, still doesn't work. No pc tethering and no on the go usb. My usb port is basically charge only.
---------- Post added at 03:58 PM ---------- Previous post was at 03:56 PM ----------
Everything else works fine...I actually never even noticed this bc I never tether to pc. But now I have to bc I want flask kdz
Help me please
someone have a solution to this problem?
My Lg G2 D803 still on boot loop (LG logo) and thats all ... no usb connection , reset factory doesnt work ...
HELP PLEASE ...
Thank you
Anyone has an idea how to fix this problem?
same problem
I have a LG G2 . recently updated from vs98027a to vs98039a 5.0 lollipop. Since the update my computer won't recognize my device in download mode and I don't have superuser ppermissions. Help plz
I also have the same problem.
It happened when I tried to backup info through LG PC Suite: the phone disconnected during the process, and now it's not recognized by any PC (http://forum.xda-developers.com/lg-g2/help/lg-g2-recognized-windows-backup-t3155323).
Also found a description of the same problem here: https://www.reddit.com/r/lgg2/comments/2urpnw/lg_g2_usb_only_charging_not_recognized_by_pc/ - no solutions, too.
Did anyone manage to fix this?
I'm on a rooted I337 that has been factory reset and under normal boot originally told me that normal boot has failed and was stuck with downloading.... but now tells me to select recovery mode in Kies also Download mode is still accessible. Before the crash I was working with a towelrooted 4.4.2. The problem is that nothing I do allows my computer to recognize it, It tells me that the device has malfunctioned and can't be identified. I've changed usb ports and cords and uninstalled/reinstalled drivers. Kies and Odin don't recognize it, but when I took it to a phone repair shop they were able to push a file that changed the normal boot error to what it is now, he gave it back to me to mess with and I could fix it if I could connect to it. Any help with this would be amazing
Thanks in advance
My I337 just got soft bricked earlier today, I made changes to my build.prop file to make it appear to be a Nexus 5, and rebooted just fine. I initially made a backup of the stock build.prop, so I decided to revert back to the stock file. when I rebooted, it gets frozen after the samsung screen and vibrates on any button press. I can boot into download and recovery mode, but I am unable to access the device via adb or kies.
Ok so I was trying to install CM13, so i read something on a forum (I think XDA), and installed this zip that I downloaded from the website then installed the zip from my custom recovery, and then restarted, and I could boot into CM13, but then I lost my custom recovery! (TWRP). When I try to go to the factory reset screen when the phone is off, I select all the Yes delete data stuff, because that's how I got into my custom recovery, but now it says secure boot error, certification error, etc. and just boots into a black screen. So the only option that I am stuck with, is i figured how to get it into the firmware update mode (download mode), but no custom recovery, and when I connect it to the LG Mobile Support tool, It doesn't say it is connected, I have installed the drivers like 3 times, and my phone keeps connecting and disconnecting from my computer (I can hear the ding sound each time it disconnects randomly and connects randomly. I have no idea what to do. Am I out of luck? Pleeeeaseee help!!!!
LG model D803 Canadian version, was running 5.1 CM12 just fine before until i decided to update and this crap started happening
Have you tried different USB cables and different USB ports?
audit13 said:
Have you tried different USB cables and different USB ports?
Click to expand...
Click to collapse
Yes I have, still doesn't work but thanks anyways
So yesterday I installed TWRP alongside CM13.
After that I got some problems with the ROM (rebooting, slow charging) so I decided to return to stock. To flash the stock .kdz I needed to go into download mode, that however did not work my phone just booted normally into CM when I tried to use the method to get into download mode (vol+ & USB). I even tried to force download mode through adb on PC however that also only rebooted the phone.
Then I did a wipe in TWRP (everything except Internal Storage) and shut off the phone.
Now I have the problem that I can not boot (because I obviously have no ROM installed anymore) but I also can't get into recovery anymore.
Also my phone seems to be in "only charge" mode from CM so my PC does not even recognize it correctly. I can't even see it in device manager and neither adb, nor the flash tool nor anything recognizes it.
When I connect my phone to the PC it just shows the CM battery icon that you see when you charge your phone while it's turned off and the LED is glowing yellow.
All of this are things that were new with CM so I guess there is still something left from CM that does prevent my G2 from acting as MTP.
Please tell me there is still hope...