My LG L9 Optimus P769BK (T-Mobile) is stuck on Boot Logo. Hard reset or any other reset procedure in this world does not recover the phone to a normal state.
History:
-I rooted the phone a few months ago in order to get rid of some of the bloatware
-Ever since adware/malware keeps coming which made my wife's life miserable
- I unrooted it but that didn't change anything, the malware now resides within system apps so the misery continues
-The USB drivers are installed and the connection shows three entries in Device Manager
-LGE Mobile USB Modem
-LGE Mobile USB Serial Port
-LGE Mobile Composite USB Device
These are shown only when the phone is in download mode (VolUp + USB Cable In)
The only software that communicates with the phone and recognizes the USB port connected (Com41) is the LG Flash Tool V1.8.1.
Unfortunately this software processes the first 80% successfully until the reset stage after which the phone get stuck at the bootup logo (non-responsive) and never finishes the started flashing process.
I just want to re-flash it with stock ROM for which I downloaded v20h_00.kdz and converted the other required DLL, FLS and BIN files.
I know this is an older model but it was seldom used and I don't want to trash it. Thanks for any response in advance.
PC Desktop: Windows 7, x32, Clean Installation just for this purpose
Update: OMAP driver added
I noticed that I was missing OMAP drivers that are specific for the TI chip this model uses and I did install them. Now the phone has a new entry in Device Manager as Portable Devices where two drives/partitions are listed (F:\ and G:\) These are visible while the phone is stuck on the boot LG logo. The LG Flashing tool still can't continue after the reset at 80% so there is no really any progress yet. Any clue anyone?
Problem solved
I finally solved my problem with LG-P769
I don't know why I couldn't succeed earlier but it turned out using a laptop is a bad idea. I tried Windows XP, Windows 7 and Windows 10. The final solution worked on my desktop with clean Windows 7. The solution was using the trick with Small HTTP server. I don't know why it didn't work earlier but it seems another thread gave me a little bit more details that I missed at the beginning (maybe the server settings)
Anyway, it seems that this phone model was long time forgotten since there was not a single reply to my original post except my two updates so it turned out I was just talking to my self loud, LOL.
Anyway, I would like to thank this forum for most advanced postings regarding the Android branch of cell phones. Regards to whoever found this interesting enough to read.
Related
Posted this on the general discussion section but have had no replies, hopefully someone here can help?
Hi everyone, first, this is my first post, new to the forums, at least as a registered user. I have a problem with my phone. I know most of you are wondering why I have not just read the other posts on the forums, but I have. I have attempted every solution to the problem posted previously.
Background: Phone: Samsung charge.
I was being impatient and did not want to wait for the gingerbread update form Verizon. I flashed the leaked gingerbread 2.3.4 onto my phone using odin. Everything went great. I was able to use my phone with no problems except shortened battery life, but nothing major. About a month ago the battery life was impossible to maintain and there were some software bugs, like clicks during calls, startup taking forever, around 2 minutes on average!, and random restarts that never happened before. I decided to look up some fixes and found that verizon and samsung had released GB 2.3.6 for the charge. I got excited and decided I wanted to get that, but I could not via OTA. I read some forum posts and they mentioned attempting a factory reset on the phone then trying OTA update. I went ahead with factory reset and everything went fine. My startup time is around 25 seconds now and no random clicks or gliches, but still not on 2.3.6, which was the whole point. I then decided to just flash the stock 2.3.6 rom to the phone.
Problem: When I plug my phone in to multiple computers it will charge but not connect to the computer. This means on my Mac it does not show as an external drive, which it has in the past. On my windows 7 machine it says that drivers were installed but could not be used (I can get the exact quote if needed.) I attempted to go into device manager and solve problem that way but it shows my phone as "unknown device". I have tried to enter download mode when hooked up to windows computers and no connection is found.
Possible solutions attempted and their outcomes:
1. As stated, I attempted the method shown in a thread on droid forums for installing the samsung drivers. I have attempted multiple times to install the drivers on my windows machine and the device remains "unknown".
2. I have attempted multiple cables on multiple computers, both mac and windows 7. No change.
3. I have installed adb and attempted to locate devices using adb devices command on mac. No devices found.
4. I have attempted all methods with both usb debugging checked and unchecked.
5. I have tried every possible usb port I have.
Ideas/questions I have had that I have no idea are possible or how to fix!
Would a factory reset take away the ability to connect to a computer from my phone. So, is there a piece of software in the build I have that controls the connection between the computer and the phone, an identifier of sorts, which is now missing, now that I have reset the leaked ROM.
Is there a way to flash a new ROM without connecting to a computer, via the sd card, and what is that? I have read some things in other posts but am too much of a n00b to understand most of them when using sdcards.
ANY help will be greatly appreciated. PLEASE PLEASE PLEASE!!! I have been at this for at least 6 hours, sifting through forums, searching google, attempting fixes that others have stated worked for them, only to fail every time. Thank you all.
have you try on a different pc?
maybe on your PC there is some problem with the drivers.
Moreover to connect via
adb u must enable Debug mode on your device in the application menu.
To flash kernel or other directly from your sd you can use the clockwordmode, but to install it you must before
install it and i fear you must use your cable connection
Sent from my GT-I9100 using XDA App
I have tried multiple PCs and a mac, even windows on bootcamp. I have installed drivers on every one, even uninstalled and reinstalled on one. One PC, my laptop was a fresh windows install (it was a linux box but I needed windows to use Odin). I was in debug mode and not in debug mode when attempting adb. Thanks for the suggestions though. As I said, I have tried numerous things and am completely stuck! so frustrating!
"I attempted to go into device manager and solve problem that way but it shows my phone as "unknown device"
Exactly there... you can try to force device to install a different driver.
Double click the unknown device then driver then update driver then find software in your computer then choose manually from a list of device drivers in your computer then show all devices you should see "android adb interface" or something related to google or android.
Try it... i hope this can help you.
Hi guys!
Like my brother said: if they don't know it at XDA, there is simply not a solution yet. And having tried a lot of options myself, your expertise is wanted!
How it all began:
I wanted to update my Lumia, so used CAB sender. Fine so far, but there was a bug (no keyboard) so I wanted to repair with Zune. Didn't work, it said it was impossible to repair to the previous version (code 80180083). And since it didn't started up now anymore, it bricked.
Looking for a solution, my laptop OS (Windows Vista 32-bit) didn't recognized my phone anymore as Nokia Lumia 800, but simply as 800. And now, it only recognises my phone as Unkown Device (Qualcomm CDMA Technologies MSM). And Windows does not detects a proper driver for this thing. Tried Nokia USB Connectivity, WindowsUSB and the drivers belonging to Nokia Care Suite but nothing gets it done.
View attachment 1231319
I thought I found the solution with NSS, but I dont get the option below which says Nokia Connection Cable, because yet again: no phone can be found!
View attachment 1231326
Or course I tried also with Nokia Care Suite, but yet again: the laptop can't recognise the brick! Although Windows does notices I put something in the USB port and it sees the Qualcomm device.
Hard reset
Not possible, since I will get a 3 second vibration followed by 3 seconds nothing and then half-a-second vibration.
Putting phone on
If I try, it will give the 3 second start-up vibration which connects to Windows Vista (using the typical sound) shortly followed by the half-a-second vibration (and a triple-short disconnect sound on Windows).
As you guys can understand, I am in quite a bad situation now. Since the phone is bought in my home country The Netherlands and I currently live in Melbourne Australia, I hope to prevent sending it back home at any costs.
So what do you think: is this one permanently bricked, or is it still possible with a specific driver to fix this? Seems to me it's purely a communication/connection problem between my laptop and my phone, but I run out of options to try..
You could try downloading Windows Phone Support Tool from Microsoft.
Turn on your phone by pressing on and the Camera button at the same time, it should then enter flash mode (release power on buzz but keep holding the camera button). When it's in flash mode you can try and get Windows Phone Support Tool to repair the phone for you.
Thank you for your reply!
I tried it before, and this is the message I got:
Communicating with device. Please wait for Recover button to be enabled.
Support Tool version 4.8.2345.0
The tool had difficulty communicating with your device. Please check your device connection and make sure you followed the instructions above. Try recovery again and if the problem persists please contact technical support.
No devices were found.
Click to expand...
Click to collapse
The problem seems to be that there is absolutely nothing is installed on my phone. Therefore, the connection with my phone fails over-and-over. Doesn't matters which program I use. I am almost sure that there is a connection fail between the computer and my phone. I tried it at some other laptops but at every laptop it says 'Qualcomm CDMA Technologies MDM'. But not a single program (NSS/NCS/Phoenix/Windows Phone Support Tool) can make an actual connection with the phone, so it must be driver related.
When I try to turn it on, it starts up but then puts itself off, like if its out of energy. It doesn't charges though. What do you think: driver related or battery related?
------------------
Extra added info: when I try to flash Rainbow os-new with NSS, I get this message:
Checking file selection...Done.
Looking for NAND disk...Not found.
Are you sure you have development Qcom loader ?
Click to expand...
Click to collapse
What does that means?
Some more info about using NSS in an attempt to try flashing my phone
(Command: Flashing > WP7 Tools > Write OS)
Checking file selection...Done.
Looking for NAND disk...Not found.
Are you sure you have development Qcom loader ?
----------------------------------------------------
(Command: Flashing > WP7 Tools > P**** FS)
Looking for NAND disk...Not found.
Things to check:
1. Is the phone connected?(Plug to the USB)
2. Is it in the correct mode?(Try to switch to OSBL mode)
3. Have you installed the Qcom loader ?(Use the Install button)
Preparing update...Done.
------------------------------------------
(Command: Flashing > WP7 Tools > Install)
Init connection...Phone not found!
Does this shows a battery problem? I have had battery problems before with my phone, but I guess that when I try to flash (even with the extra add to NSS) it should ignore any battery level. Or should I screw it open, try it again and see if it will work then?
If it's finding it as an 800 that means it's finding it (it finds mine as an 800 when I've played with it too much).
When you enter flashing mode via camera button, do you not get the image of the phone connected to a PC on the phone?
I had that in the beginning, but those days are long gone.. I don't know how it happened that I don't get that back anymore. Perhaps because my phone doesn't boots itself completely, but falls out of its boot program. Nothing visible on screen
I have searched (I have 12 tabs open as I type) these forums. I see a few similar cases but I am not finding a solution. I have use CMHENDRA's guides but I am having no luck. (It is my daughters phone so I will give you what information I know) BTW, I contribute in the Note II galleries, I have rooted and flashed HTC One X, Several Nexus 7's, my Note II, Galaxy SII, Galaxy S, HTC Sensations, Nexus 4 and a few older ones. I can currently see all those phones on my laptop. Not the L9.
I believe my son tried to flash CWM for my daughter. She is notoriously rough on phones and he was trying to make sure she was protected. The phone boots into the LG Security Error screen. I can get it to boot into S/W Upgrade mode. I have completed or can complete all the steps to most of the guide. I CANNOT get my Win8.1 laptop or my sons Win7 laptop to recognize the phone to complete any of the guides. B2C, Fastboot, etc. I can see various entries in the Device Manager, I uninstall and reinstall with Driver Signing turned off. I have now reached the point where I have done so many things that I have probably confused myself.
When it did get the security error, the software had been set to USB Debugging and Unknown Sources was allowed. The firmware was 20H. B2C cannot get the phone information (I know it is probably the drivers as is everything else).
Any help, ideas, etc. would be great. I would love to be a hero for my daughter.
dsore1218 said:
I have searched (I have 12 tabs open as I type) these forums. I see a few similar cases but I am not finding a solution. I have use CMHENDRA's guides but I am having no luck. (It is my daughters phone so I will give you what information I know) BTW, I contribute in the Note II galleries, I have rooted and flashed HTC One X, Several Nexus 7's, my Note II, Galaxy SII, Galaxy S, HTC Sensations, Nexus 4 and a few older ones. I can currently see all those phones on my laptop. Not the L9.
I believe my son tried to flash CWM for my daughter. She is notoriously rough on phones and he was trying to make sure she was protected. The phone boots into the LG Security Error screen. I can get it to boot into S/W Upgrade mode. I have completed or can complete all the steps to most of the guide. I CANNOT get my Win8.1 laptop or my sons Win7 laptop to recognize the phone to complete any of the guides. B2C, Fastboot, etc. I can see various entries in the Device Manager, I uninstall and reinstall with Driver Signing turned off. I have now reached the point where I have done so many things that I have probably confused myself.
When it did get the security error, the software had been set to USB Debugging and Unknown Sources was allowed. The firmware was 20H. B2C cannot get the phone information (I know it is probably the drivers as is everything else).
Any help, ideas, etc. would be great. I would love to be a hero for my daughter.
Click to expand...
Click to collapse
I can't get mine to work either. Closest thing I've gotten is using omap4boot-for_optimus-v1.21
its different from some of the others, in that its a blue background and it doesnt actually list the p769. However, after selecting option 5, and following onscreen instructions, I was able to get my front capacitive buttons to light up, but nothing else. I can't enter S/W upgrade mode, I can't get LG recovery tool to recognise my phone, I am absolutely **** out of luck. I dont know if using omap4boot-for_optimus-v1.21 will help or hurt you, but im just explaining my experiences.
Have you installed the omap driver for fastboot?
Thanks for your replies. Windows 8.1 is installing the OMAP driver and when I try to update it, Windows says it has determined that I have the best one installed already or some BS like that. That seems to be the last piece of the puzzle. I am not getting it to use the fastboot commands and when I am in the LG upgrade thing, it cannot connect on the first of the three calls so it says to check the USB cord and connection. ( I have tried 5-6 cords including the OEM cord ).
Thanks again for your help. I will uninstall the OMAP drivers when I get home and see if I can't get the ones I downloaded to install.
I don't have Windows 8.1 so I'm not sure how to address the driver issue. I reer as wel.commend you uninstall the driver, both of them. The one under Android Phone in the device manager and the one called TI Boards in the device manager.
1. Uninstall all OMAP drives (Two of them)
2. Disconnect from the internet (to preventing Windows update from selecting its own driver.
3. Follow steps to fastboot. When connecting your phone have device manager open and right click the device that is flashing on and off (you will see the device manager refreshing and stuffs. It will dissappear after about two seconds but if you get the right click in and the option to install the driver, do it, point to the fastboot driver.
4. Disconnect phone after driver install and pull the battery.
5. Fastboot again, using option 1.
6. Quickly install same driver on the new device in device manager. Be quick.
7. Disconnect, Pull battery
8. Fastboot again
9. Flash ICS U and X
10. Make sure your LG drivers are installed.
11. Reboot PC.
12. Now you should be able to get into SW UPGRADE MODE with the plugging in of the USB
Should not lock up at 15%, make sure you have drivers installed for this.
13. Should work and reboot to home screen automatically.
14. If you really must, fastboot again and install JB U and X
dsore1218 said:
Thanks for your replies. Windows 8.1 is installing the OMAP driver and when I try to update it, Windows says it has determined that I have the best one installed already or some BS like that. That seems to be the last piece of the puzzle. I am not getting it to use the fastboot commands and when I am in the LG upgrade thing, it cannot connect on the first of the three calls so it says to check the USB cord and connection. ( I have tried 5-6 cords including the OEM cord ).
Thanks again for your help. I will uninstall the OMAP drivers when I get home and see if I can't get the ones I downloaded to install.
Click to expand...
Click to collapse
I've heard fastboot (and several other programs) aren't working on Windows 8. You need windows 7
Sent from my LGMS769 using XDA Premium 4 mobile app
Hi all
Recently, my optimus L9 (the P760), has started to get popups saying ''the process com.android.phone has stopped."
This started when I turned on my phone and suddenly I got pop-ups of multiple apps and processes being stopped.
Then the phone was suddenly off, without having given any kind of warning that it was going to turn off..
Then I restarted it, it got stuck on the LG logo for a while (didn't count, was about 1-5 mins) and then it said 'Encrypting' (under which I can see something I presume is a loading bar, but it's not loading) And under Encrypting, it has a button which says 'Reset phone', which won't work. I've tried it several times, restarted the phone (which also took 1-5 mins) several times, and have looked for solved threads about this on xda, as well as other forums..
There have been several threads like this, but none seems to be solved. That is the reason why I open this new thread.
My pc won't recognize the lg when I try connecting it either.. Nothing seems to be able to fix this, but my warranty has passed due to it being older than 2 years..
I really hope you guys can help me, thanks a lot!
Patrick
The final production run of L9s featured an encrypted bootloader, phones manufactured in 2013, if bought until early '13 this cannot be the case.
Anyway this means the phone is bricked, if you did not activate Android' s encryption feature.
The LG recovery tool should ve able to fix it in download mode. There are driver problems under Windows 8&10, but download mode should work and is also the final option before sending it in or dumping it.
For download mode switch phone off, then press Vol- while plugging the phone in and wait until it switches on by itself. Activating download mode after an off-on-off sequence seems to help when even download mode doesn't work as supposed. Seems to do the same as taking out the battery in between tries.
This was the last issue I had before my p760 got trashed by this tool http://forum.xda-developers.com/showthread.php?t=2748384 I wish you luck though.
There's various driver issues in the various connection modes the phone can assume.
First there's more trouble with Windows newer than Seven. This affects Fastboot and generally the recognition under Windows. And with a custom rom the LG drivers may not recognize the phone, thus all LG tools will fail too.
Best support is gained with two sets of drivers installed: LG usb drivers and Google SDK usb drivers.
With Artas' CM11, the Google drivers provided support for non-LG tools and ADB commands. The LG drivers only recognized the phone in Download mode and were necessary for unbricking it, as all tools for flashing KDZ files are based on LG's own tool, which needs the LG drivers.
The driver installation is less difficult on Win10 compared to 8.1, run the setup to install both ones.
On Win8.1 you may have to manually assign the Google drivers after their installation in device manager, they' re either found in the Android Phone category or the ADB interfaces one, while the LG ones sit invisible(!) in the other category(phone not recognized, remember?), but the phone recognition will be triggered by attaching it in download mode, and a virtual COM port will be installed.
Hopefully this was confusing, weird and silly enough, but if you manage to get it right, unbricking the phone is still quite possible.
Okay so I've ruled out a couple of the culprits and I still struggle to connect my phone
The Cable,I know this because I've tried the same cable on a different phone and it work perfectly
The MTP drivers,I know this because I've installed this more than twice and restarted both device more than I can remember also every single driver I have installed gives me code 10 error and doesn't work after restart.
all of this happened after I tried to flash twrp on my device and when I pressed flash on the SPflash app it didn't flinch so I restart my phone, and lo and behold it starts to transfer files from the twrp .img file and after that my phone was still connected but nothing changed twrp wasn't there, but my phone was still connected and I when I progressed through the page on how to flash there was the drivers for it MTK drivers after I installed them nothing was working, so I uninstalled the phones drivers, exactly after that my phone wouldn't connect again, like I said I tried every thing, that I could do.
All I wanted to do is to root that old phone and give it a new life but no something has to go wrong and I tried going to the manufacturer's website for the drivers but no dice, I tried posting on the manufacturer's forum and still nothing they haven't even replied to my post about it being publicly available, so I hope that someone out there can help me diagnose ans fix this problem.
I'm on android 8
its a blackview bv8000 pro