[Q] Stuck in ATT Rethink Possible Bootloop - AT&T LG Optimus G

Here is the story so far. I rooted my phone and got a little carefree with Titanium back up and uninstalled some essential gapps. I was able to get into download mode and am using LGNPST to restore my device to factory settings. The issue is I keep running into is I am getting stuck at 85%, which I know is a common error point in the LGNPST process. I turn the phone off and power it back on while keeping the phone plugged in and the phone reboots. After a few minutes I finally get an error message saying the following
Process:Upgrade_Masterbin
SubProc: Masterbin Download
Cause: Error: Fail opening port
Any kind of help would be much appreciated
Thanks!

Desconect the phone and do a hard reset.

Alright that seemed to get my farther. After a hard reset I was able to catch a glimpse of the phone setup before the phone immediately shut off. I am going to try and re install stock firmware through LGNPST again to see if this will work finally. Thanks!

Instal the 11c update anf root with the universal root.

Related

[Help] Tried to flash SuperSU and now bricked

long story short. I tried to flash a newer updated copy of SuperSU or whatever to get root back after updating to 4.0.4 earlier this week.
Once I did that I was able to get back into the operating system and run Root Checker. Everything passed. I then tried WiFi tether and it kind of locked up on me for a bit. then I was able to stop it and exit out of it. I Force closed the programs. Life was good.
For whatever reason I restarted the tablet. once I did that I was stuck on the Samsung screen for at least 15 minutes.
I then tried to re-run root file and then the new updated SuperSU. Then everything went all to hell.
Then I get a message that says
"Firmware upgrade encountered an issue. Please select recovery mode from Kies & try again."
Now I can not boot into anything but recovery...
I am able to with that message on the screen, connect to Odin and proceed to run the "factory" restore. However it has been sitting at what I would assume is about 5% or so for a long time. at least 20-30 minutes. Should this take this long?
And is there anything else I can do to do a restore? I am fairly new to this tablet and I use it for work and of course I have a super full day of work tomorrow and really got to get this thing back up and going.

First Security Error, Now no booting at all

I flashed cwm via nandroid manager, got the security error and i have been trying to fix the issue since. Unfortunately, Now my phone will only go into S/W Upgrade mode. The problem is i have tried flashing the x&u boot for ICS to reflash back to normal but the phone auto exits S/W mode at 15% or 8%. Have tried with JB x&u boot, doesnt read phone for install. The version of android im running is 20h. Have tried online mode, wont restore at all.... Have flashed a stock recovery through fastboot to no avail. Phone isnt even charging now.... HELP! Please.
Update:
For some reason, the phone wants to all of a sudden work. I will NOT turn the phone off. Thanks for the guides all of you that have taken the time to make them. I dont remember all of you but thank you for your hard work and dedication to trying to make us happy. Keep up the level of awesomeness.
Gryff302 said:
I flashed cwm via nandroid manager, got the security error and i have been trying to fix the issue since. Unfortunately, Now my phone will only go into S/W Upgrade mode. The problem is i have tried flashing the x&u boot for ICS to reflash back to normal but the phone auto exits S/W mode at 15% or 8%. Have tried with JB x&u boot, doesnt read phone for install. The version of android im running is 20h. Have tried online mode, wont restore at all.... Have flashed a stock recovery through fastboot to no avail. Phone isnt even charging now.... HELP! Please.
Update:
For some reason, the phone wants to all of a sudden work. I will NOT turn the phone off. Thanks for the guides all of you that have taken the time to make them. I dont remember all of you but thank you for your hard work and dedication to trying to make us happy. Keep up the level of awesomeness.
Click to expand...
Click to collapse
i hope KDZ will work

Help me save my S4 i545

So I have a S4 i9545 for Verizon. It was on 4.2.2 rooted and I upgraded using Fireflash with I545_OC1_Stock_DeOdexed_ROMwNK4_BL.zip. Everything seemed fine so I was using Titanium back up to remove the bloatware and then my battery died. When I charged it and booted up it got to the Verizon screen and hung there. I reset and tried several more times. I tried to use odin and flash a stock ROM SCH-I545_VZW_1_20140330160240_yni63xq6zh and I also tried one more. Odin gave a an error and failed. I then tried going into the boot loder and flash the I545_OC1_Stock_DeOdexed_ROMwNK4_BL.zip. Not sure if this was foolish or not. When I booted up I got to a black screen and there was a voice talking, maybe some sort of training, but I couldn't do anything.
If anyone can point me in the right direction on how to unbrick my S4 I would appreciate it. I know I screwed up.
Right now when I turn on the phone it says firmware upgrade encountered an issue. Please select recovery mode in kies and try again. I tried connected to my computer and opening kies but it doesn't find it.
Try disconnecting your phone, completely closing Kies, then re-launching it with your phone still disconnected. Then click Tools > Firmware Upgrade and Initialization then follow the prompts

Stuck in Download Mode, crashing during recovery

So I was having so many issues with my rooted phone crashing on jasmineRom 7.0 I thought maybe an OTA update had made it through and started downloading. No matter what I was doing the screen would turn blue and then restart. Sometimes it would crash blue again during reboot, and sometimes it would crash and then show the green demigod crash screen. So I researched flashing the .tot files to go back to stock. KDZ I didn't care for because it still showed the phone as modified software, and I wanted full stock so I could use the extended warranty with Verizon if need be. I eventually got the .tot method to work and everything was hunky dory, and showing stock. I upgraded all the way to marshmallow and decided I love every bit of it, but I couldn't figure out how to get my contacts and stuff off titanium backup without root. So I figured, "well roots not the problem if an OTA tried to download it just means I missed a setting or something". So I rooted again. No issues, I reinstalled JasmineRom 9.1 this time. Eventually it started crashing again, although this time I followed absolutely every guide I could find on disabling OTA. So I thought, "Great it's Jasmine" and I really wanted Marshmallow anyway so I followed xdabbeb's guide for getting the 35b bootstack on my phone, worked great no issues, and then I installed xdabbeb's firmware, combined with Edor's debloating zips. Everything was working great! I had no issues, I backed up just my apps, and some data, and reinstalled others and everything was great and working fine, and the phone was still official, no OTA's getting through. That was almost a full week ago. Yesterday I woke up and the phone wouldn't turn on. I took the battery out and put it back in and the phone came on, but then crashed with the blue screen again. So I thought great I guess I'll put it back to stock and use the warranty. By this time though I was having trouble getting it to load past the LG screen. I finally got it into TWRP and was able to wipe everything (except SD card) and then I stuck it in download mode and went to install the .tot files. Weeeeelllll, long story short, it crashed during download mode install with the LG Flash Tool. So now the phone gets stuck in download mode everytime I pull the battery and power it on. And crashes again every time I go to install anything. KDZ doesn't work, the flash tool says it can't communicate with the phone, because it crashes. And LG Flash Tool for the .tot files seems to crash everything it loads the modem, or consistently crashes on LAF:bin_user_mode. So I have no idea. At the moment it just looks like my phone is all funky defective, and Verizon may take it back and give me a new one so I'm going to try that. HOWEVER! If anyone has any ideas on what the issue is or what else can be done, I still want to hear it. Feel free to post
Also I've tried updated drivers for the computer, I've tried rolling back drivers, I've tried different KDZ files, I've tried the LGUP8974.dll fix where you flash that in flash tools and then flash the vs985 dll, which is what I had to do to get it back to stock the first time. I've tried everything I could find online except anything to do with fast boot and shorting the pins. Which I haven't tried because I can still access download mode it just seems to be stuck in download mode. Those methods from what I understand are for hard bricking, and for people who's phones don't turn on at all. Although if Verizon won't help I may try one of the laf recovery methods.
Thanks!

Boot Verification Fail

Hey guys, not sure if there was another thread with this issue but I couldn't find it.
Yesterday at work my phone suddenly froze and then restarted into a bootloop and this is what I did:
I pulled the battery out for a good 10 minutes and tried it back again and it was the same thing again with the bootloop.
I tried to put it in Safe Mode and it started up and then after awhile it froze again and jumped back into the bootloop and wouldn't go back into Safe Mode again.
This time I tried clearing the cache and that didn't work.
Next thing I tried was to Factory Data Reset the phone and it came up after that where I had to go through the whole setup wizard and everything like it was a new phone again. But not long after the phone was running fine it started restarting every couple minutes or if I go in What's App or something else.
I figured that something is wrong with the system itself so I downloaded the 22A update for the VS990 on my laptop (where the version 11B was currently on the phone) to try and update it and honestly that was a bad move because when I tried to flash VIA LGUP, the phone restarted during the process and now I'm getting this on at the top left corner of the logo screen then it reboots continously:
Boot verification failed!!
- cause: MISMATCH_SIG_LEN
Can anyone please help me out, love this phone so much and not looking to get a new one or change it anytime soon :crying::crying:
Are you in warranty or have insurance with extended warranty? Sounds like you'll have to contact VZW and get a replacement. Hopefully you're covered.
Sent from my VS990 using Tapatalk
I'm really not sure as I bought the phone 2nd hand from Ebay, bought it in August so probably., so would have to contact the original owner and see what he has to say. Sigh only if I could get it to stay on the logo screen at least without restarting I could try flashing it again.

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