First let me say ive used this site many times and never needed to post as all my questions were already answered, so for the many times ive not needed to post thank you all for being so great and helpful!!
That being said im hoping im just using the incorrect rom or going about it wrong. we switched carriers at work and my sprint lgog is sitting in a drawer while my wife uses a droid 4 on a regional carrier because they cant flash phones running JB. So for mothers day i thought i would downgrade to ICS and get this phone flashed for her. Thus far ive managed to root, unlock bootloader and fix two softbricks using teenybin's work. The softbricks came after trying to install both LS970ZV9_ODEX_STOCKROOT_1_13 and LS970ZV9_DEODEX_STOCKROOT_1_13 using twrp. I selected backup and wipe before doing both. Is there a different rom i need to use post VZB to install a ICS rom? or are these roms ok im just installing them improperly? TIA
*update* after trying to install the LS970ZV9_02.bin update with lgnpst the phone hung at 85% and upon reboot would hang at the 4glte screen, I tried teenybin unlocker again and the phone wouldnt boot at all. The lg logo would flash and then blank screen...i couldnt seem to toggle the power at all and it wouldnt even charge on wall charger. after 20 mins of frantic "oh #^#$" button pressing i finally got it to go into recovery mode and recovered back to zvb. It seems mostly back to normal now other than the wifi doesnt seem to be on even though it says its on, no emblem in notification area and wont connect to my wifi when told to.
*update2* after doing factory restore i got my wifi working properly. So i then rerooted and then reinstall teenybin with lgnpst i was able to get into twrp and restore my primary backup.... So now i THINK im back to square 1, rooted, unlocked vzb...at least everything seems to be back to normal. 3rd time is the charm which in this case means i think im going to wait to hear from someone more knowledgeable than i before i screw something up i cant fix
4th attemt 4th fail
so i tried to flash LS970ZV9_02, a totally stock unrooted, locked rom i found here on xda...i did a factory reset before booting into twrp, wiped cache and dalvik, loaded the rom and it boot looped....:crying: i dont know what im doing wrong unless these phones just refuse to downgrade....
I suggest you get on the optimus g IRC. They are very helpful. You may need to find the older radios and flash those after you downgrade. LGNPST should work, normally when it reboots at 85% its a good indication that it worked properly. Perhaps you could find a copy of the ls970zv8.bin and try to install that. Good luck.
Sent from my LG-LS970 using xda app-developers app
This morning I tried to do the OTA update to the stable versions listed above. The device rebooted to the blue man and stayed there for 30 minutes I figured something was wrong so I took off the battery and restarted. Now it's stuck on blue man every time I boot up the phone. I can get into download and recovery mode, I tried doing a data wipe on the phone and see if it would work from there, and nothing. I'm debating what should I do from here? I want cyanogenmod on my phone so I was wondering if I could flash it from ODIN. Any advice would be appreciated.
Pretty much the same thing happened to me, except on the d2att version. Wish I could give more help than just saying I'm in the same boat, sorry.
same
update put phone in boot loop so im going with nightly builds
Hey guys, noob here! i recently bought my g3 but the guy who sold it to me forgot to mention it had twrp installed on it. I saw that there was an OTA update available so i hit "install" BIG mistake. now its stuck in a bootloop between TWRP and the LG Logo. i tried flashing back to stock with the lg toolkit but my pc wont even connect/recognize my G3!! HELP!!???
lrdmg said:
Hey guys, noob here! i recently bought my g3 but the guy who sold it to me forgot to mention it had twrp installed on it. I saw that there was an OTA update available so i hit "install" BIG mistake. now its stuck in a bootloop between TWRP and the LG Logo. i tried flashing back to stock with the lg toolkit but my pc wont even connect/recognize my G3!! HELP!!???
Click to expand...
Click to collapse
Can you get into download mode? If so and your computer isn't seeing your phone then it is a driver issue with your computer.
Toneman07 said:
Can you get into download mode? If so and your computer isn't seeing your phone then it is a driver issue with your computer.
Click to expand...
Click to collapse
yes i can get into download mode. my computer keeps saying "device driver was not successfully installed"
Ive tried everything, ive installed the universal drivers many times, but my computer still does not seem to recognize it.
lrdmg said:
yes i can get into download mode. my computer keeps saying "device driver was not successfully installed"
Ive tried everything, ive installed the universal drivers many times, but my computer still does not seem to recognize it.
Click to expand...
Click to collapse
When you plug in your phone right click on the "installing drivers" and tell it to stop searching windows update. It will then check your computer for the files you installed and you should be able to get it working. I ran into this myself and it took me a few minutes before i figured it out.
lrdmg said:
Hey guys, noob here! i recently bought my g3 but the guy who sold it to me forgot to mention it had twrp installed on it. I saw that there was an OTA update available so i hit "install" BIG mistake. now its stuck in a bootloop between TWRP and the LG Logo. i tried flashing back to stock with the lg toolkit but my pc wont even connect/recognize my G3!! HELP!!???
Click to expand...
Click to collapse
If you have an SD card, put the rom you want to use on it, then flash in twrp
Or you can adb sideload the rom of your choice
I ran into the same problem. Youll need to flash the phone back to untouched stock. Its in the tmobile lg g3 general forum. Just follow the instructions. Then you'll need to root and install custom recovery if you choose so.
Were you able to get G3 back to normal? I accidentally did the same thing this morning. Fortunately I still have my GS3 to hold me off until I get time to fix the LG.
Sent from my SGH-T999 using XDA Free mobile app
Mcindallas said:
Were you able to get G3 back to normal? I accidentally did the same thing this morning. Fortunately I still have my GS3 to hold me off until I get time to fix the LG.
Sent from my SGH-T999 using XDA Free mobile app
Click to expand...
Click to collapse
Use lg flash tool back to stock
BAD ASS G3
The Solution Flash To Stock/Unroot
I followed these instructions and worked fine when i was stuck in boot loop.
androidrootz.com/2014/07/how-to-unroot-lg-g3-all-variants.html
Had the same issue previously on a E980 (AT&T G Pro), and unfortunately ran into the same problem on my D851 after attempting to take an OTA. Here's a flashable of the script I found in the int'l forums.
KillaHurtz said:
Had the same issue previously on a E980 (AT&T G Pro), and unfortunately ran into the same problem on my D851 after attempting to take an OTA. Here's a flashable of the script I found in the int'l forums.
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Click to collapse
This was a lifesaver, really didn't want to mess around flashing all the way back to stock, then restoring backup. Thanks!
Dude this worked like a charm. Too bad I didn't read about this on my last G3. I'm on my 3rd G3 in the past 6 months. Multirom is the **** but it will get you stuck if you flash the latest OTA on the stock rom.
How do you install the stock recovery. the lg flash tool doesn't work and gives me a failed message every time I try.
KillaHurtz said:
Had the same issue previously on a E980 (AT&T G Pro), and unfortunately ran into the same problem on my D851 after attempting to take an OTA. Here's a flashable of the script I found in the int'l forums.
Click to expand...
Click to collapse
Can you please spare a minute to help me. As i flashed the above file but still in twrp revovery.
I am having a serious problem need help or suggestion for anyone.
While i was having proximity calibration issues while calling the sensor was delaying to everything. I tried to run a hardware test from the service menu from fulmics tweaks in fulmics rom for marshmallow. But now my device is again and again booting up in twrp recovery. I wiped everything and installed the rom again but again i think the phone is commanding the system to run a device test and its booting up twrp recovery again. Now please someone tell me what should i do. Should i flash a non stock based rom or should i flash a CM based rom or any other suggestion. Please help.
Hi guys,
I was happily running Cyanogenmod with full root (one of the nightlies from august) but I wanted to install newest nightly. I got a warning that in order to do so, you have to get newest recovery. So, I wanted to install newest TWRP. Downloaded, installed using dd but got "Boot certification verify" error. Damn, this did not work so I installed international version of Autorec instead. This proved to be a stupid rookie mistake. Installation of APK went well, AutoRec did its job but after reboot I was stuck at LG logo. I turned off the tablet but it restarted instantly just to show me the logo.
I managed to get into download mode. Now I have the tablet connected to my pc via USB cable, Download screen is happily on my tablet's screen. But I *really* would like to keep my existing files on the device and just fix my blasted kernel or whichever part got busted by AutoRec. Can this be done or do I have to flash the stock ROM?
Thanks guys. I'll go and bash my head against the wall for a moment now.
Aaahhh, noobism got the best of me today...
Never mind. Flashed stock rom. That fixed it.
I flashed the latest version of Xenon HD 11-26 for my D852 and it gave me an error on reboot from TWRP saying that root wasnt there anymore and to reapply root, I said yes and reboot and now I cant get back into TWRP at all.
Im not sure if Im doing the back buttons right, but Im kinda starting to panic and Im not sure what to do since the phone wont boot to an OS now for me to try and use the software to reboot back into recovery.
Any sort of guidance would be extremely appreciated.
Thanks in advance.
I finally got Recovery to go back up, so, Im trying to reflash now.
Sorry for making a panic thread, guys.