I unlocked the bootloader and flashed TWRP just fine. I attempted to root, but everything was encrypted (I think), so I set a PIN and read that some people had to reboot several times before TWRP recognized and asked for the PIN. So I did that, and after the 4th or 5th time, it booted up to a blank screen only with the soft buttons. I tried erecovery, but it's the same. USB debugging was apparently turned off somewhere along the way, so I can't access ADB. Also, when I plug it into to my computer, a message pops up that says "the last USB device you connected to this computer malfunctioned, and Windows does not recognize it."
I'm at a complete loss as to what to do. I've searched and tried everything I've come across over the past two hours, but to no avail. I'm hopeful something's out there but I've missed it.
I can still access TWRP. I factory reset it a few times hoping that would work, but it didn't.
Any suggestions?
Related
Hey XDA,
I have a D800 that is totally stock. I have no custom recovery, and have never rooted the device.
A couple days ago I got the notification for an OTA update. I hit the notification, and rebooted the phone. It started the update process. It got through the first step. When it started the second part of the update, a black box popped up, and a code like "ERR 0x04ff" or something like that popped up. The phone rebooted, and got stuck in a boot loop with a "Security Error." The phone will boot up, show the LG logo, then show a slightly different LG logo with "Security Error" underneath it, then reboot and start the process over. I started messing around with the power button and volume keys to see what different modes I could boot it into. Initially I could boot it to the Factory data reset screen, the Hardware Mode Keys screen, and I got it into Download mode once. I didn't have any of the software or files available at the time to do anything with Download mode, so I opted to try a Factory reset. The phone attempted a Factory Reset. The little android with wiggly ears, and the spinny cube thingy popped up for about 4 seconds, and the phone rebooted.
Since trying that initial Factory Reset, I have been unable to get the phone into Download mode. I've tried doing the Factory Reset multiple times to no avail. I have not seen fastboot at all.
At this point, the only thing I can do with the phone is boot it to the Factory Data Reset screen, and to the Hardware Keys Mode screen. It will not do a factory reset. The android pops up for about 1-2 seconds, and the phone reboots, and goes right back to the boot loop with the security error.
I'm at a loss at this point. I've called AT&T, and unfortunately my phone is out of warranty by about 3 weeks. So they can't just mail me a replacement. Does anyone have any ideas? I can't seem to get it to be recognized by my PC, on Windows or Ubuntu. I get the feeling that it's just hard bricked, and there really isn't anything else I can try.
Any suggestions would be greatly appreciated
TL-DR: Totally stock D800, no custom recovery or root. Security Error Boot Loop after OTA attempt. No download mode or fastboot, factory reset is ineffective. Not recognized by PC. What do I do now?
bob51dole said:
Hey XDA,
I have a D800 that is totally stock. I have no custom recovery, and have never rooted the device.
A couple days ago I got the notification for an OTA update. I hit the notification, and rebooted the phone. It started the update process. It got through the first step. When it started the second part of the update, a black box popped up, and a code like "ERR 0x04ff" or something like that popped up. The phone rebooted, and got stuck in a boot loop with a "Security Error." The phone will boot up, show the LG logo, then show a slightly different LG logo with "Security Error" underneath it, then reboot and start the process over. I started messing around with the power button and volume keys to see what different modes I could boot it into. Initially I could boot it to the Factory data reset screen, the Hardware Mode Keys screen, and I got it into Download mode once. I didn't have any of the software or files available at the time to do anything with Download mode, so I opted to try a Factory reset. The phone attempted a Factory Reset. The little android with wiggly ears, and the spinny cube thingy popped up for about 4 seconds, and the phone rebooted.
Since trying that initial Factory Reset, I have been unable to get the phone into Download mode. I've tried doing the Factory Reset multiple times to no avail. I have not seen fastboot at all.
At this point, the only thing I can do with the phone is boot it to the Factory Data Reset screen, and to the Hardware Keys Mode screen. It will not do a factory reset. The android pops up for about 1-2 seconds, and the phone reboots, and goes right back to the boot loop with the security error.
I'm at a loss at this point. I've called AT&T, and unfortunately my phone is out of warranty by about 3 weeks. So they can't just mail me a replacement. Does anyone have any ideas? I can't seem to get it to be recognized by my PC, on Windows or Ubuntu. I get the feeling that it's just hard bricked, and there really isn't anything else I can try.
Any suggestions would be greatly appreciated
TL-DR: Totally stock D800, no custom recovery or root. Security Error Boot Loop after OTA attempt. No download mode or fastboot, factory reset is ineffective. Not recognized by PC. What do I do now?
Click to expand...
Click to collapse
Try this guide, it should help. Good luck.
http://forum.xda-developers.com/showthread.php?t=2662445
Sent from my LG-D800
Swetnes said:
Try this guide, it should help. Good luck.
http://forum.xda-developers.com/showthread.php?t=2662445
Sent from my LG-D800
Click to expand...
Click to collapse
Thanks for the reply. I was about to reply saying my phone wouldn't go into download mode, but then I randomly decided to use a different usb port, and now it went into download mode.
I'll give it a shot now and see what i can do
Ok, It seems I'm back up and running. I followed this guide http://forum.xda-developers.com/showthread.php?t=2432476 which re-flashed me to 4.2.2. I'm going to try and upgrade using LG PC Suite from my laptop, and see if I have better luck this time.
Lesson learned, try every USB port when trying to boot into download mode.
Thanks for the help
Urgent help reqd
randomly my nexus 5 restarted
google came on screen and now only those four animated circles are showing up and the phone doesnt go further
went in bootloader but cant wipe cache, cant format, or anything else from there.
usb debuggng must be off as far as i remember
trying to flash through sdk manager. have downloaded image. but stops at "waiting for device" in cmd and it doesnt go any further than that. even tried doing it manually through cmd.
when the phone is connected it is showing the drivers but it isnt installng and can see the yellow exclamation.
manually downloaded the drivers and tried installing manually but shows drivers are up to date.
uninstalled driver and reinstalled but same issue. it is connected to usb 2.0.
now how do i get it to work?
I have tried all the options i could search for on this forum but none of them solved my issue.
Is the bootloader unlocked?
How do i check that?
Ok got it
It is locked
How do i unlock?
I checked some unlocking bootloader threads but they all require usb debugging to be on.
My phone is not starting at all so i cannot do that
How do i go about it now
Tried nexus root toolkit. It isnt detecting the device.
Unlocking will wipe you device.
Google themselves have a guide on how to flash, not sure why you are using toolkits.
Also, you will wipe your device, if you haven't already. Make sure you have the right drivers, make sure you get the device to come up under "fastboot devices"
Already tried all methods mentioned by google or xda.
If you read my initial post my phone is not getting detected as well but shows installing drivers when connected but the installation fails.
Manually install the correct drivers.
Tried that but i get the error that you already have latest drivers. But its not detecting the phone
Try removing the drivers and reinstalling
Also, try different USB ports and cables.
Did all of that a number of times. Still no luck
Other phones are getting connected and detected just fine.
useruser12 said:
Urgent help reqd
randomly my nexus 5 restarted
google came on screen and now only those four animated circles are showing up and the phone doesnt go further
.
Click to expand...
Click to collapse
Hi all, i have a similar problem
this morning my n5 boots into "optimizing apps", but stops when reach around 15/20 apps and reboot (3 or 4 times)...
Now, only keeps in android animation like useruser12.
I can see my data in TWRP, battery 95%...
I wipe cache/dalvik... nothing
I reflash the kernel (ElementalX 6.17), still nothing
Any ideas?
PS: latest news. After make a backup, I made a factory reset and restore a system-boot-cache partition from old backup. Now the phone boots but i hate lose all my data xD. I want try to solve my problem using my "corrupted" backup for avoid losing data. If that fails, I can always restore this functional backup. Any ideas again?
Used the nexus root toolkit.managed to unlock bootloader but immediately the device reboots and goes into the bootloop again.
Tried the flash stock + unroot function as well which detected my factory image and everything went smooth till it came back to unlocking the bootloader and rebooting the device after that and again went into the bootloop
Though i have installed the drivers, on reboot windows 7 automatically starts installing the mtp usb device driver but fails. Manually downloaded the drivers and installed as well.
Still its not worked and whatever i do it comes back and get stuck at the bootloop.
Any expert can give a solution? Thanks
After unlocking the bootloader, does the bootloader relock when the phone is rebooted? If it does, the memory chip is defective.
Phone doesnt reboot completely.goes into a loop after the google logo and doesnt go further.
If i switch off the phone midway here without it booting up and then restart the bootloader then its locked again.
But what i read was that the process of complete reboot needs to finish and i need to turn on usb debugging. So is it because of that the bootloader locks again?
Anyways, this what im facing
Dalamar666 said:
Hi all, i have a similar problem
this morning my n5 boots into "optimizing apps", but stops when reach around 15/20 apps and reboot (3 or 4 times)...
Now, only keeps in android animation like useruser12.
I can see my data in TWRP, battery 95%...
I wipe cache/dalvik... nothing
I reflash the kernel (ElementalX 6.17), still nothing
Any ideas?
PS: latest news. After make a backup, I made a factory reset and restore a system-boot-cache partition from old backup. Now the phone boots but i hate lose all my data xD. I want try to solve my problem using my "corrupted" backup for avoid losing data. If that fails, I can always restore this functional backup. Any ideas again?
Click to expand...
Click to collapse
Lucky that you could do a factory reset. I wasnt even able to do that from the bootloader.
useruser12 said:
Lucky that you could do a factory reset. I wasnt even able to do that from the bootloader.
Click to expand...
Click to collapse
Sorry, i did it via TWRP.
If the bootloader relocks itself upon reboot, it's the memory chip that is damaged.
hello, recently i bought myself a new op6, as it was good for modding and such. unlocked the bootloader, flashed twrp, and rooted it the day after, used it for a couple of days, before I installed elementalX. was happy with that for some days. then I decided I wanted to try out lineageOS, in order to de-google my self, in my quest for privacy.
TL;TR:
mtp is not working after flashing, neither is twrp, cant even access it through fastboot with booting the .img file.
does this have something to do with the a/b partition thing on these phones, perhaps?
I would guess that I flashed lineageOS the wrong way, and that is the issue, but since I cant access twrp, I cant restore and reflash the correct way.
more detailes below
--------------------------------------
backed up before installing elementalX, to have something to go back to, in case of failure
rebooted into twrp, and wiped everything, exept internal storage (i looked this up several places, prior to flashing, that this was the way to do it, so assumed this was the correct way)
flashed lineageOS 15.1
wiped dalvik and rebooted
took ages to boot, so figured id reboot again a couple of times, with no succsess
tried to boot to twrp, to restore back state prior to flashing, but ended up in lineageOS' own recovery.
tried to boot from fastboot, and reflash twrp
goes out of bootloader and screen turns black, led turns on, and nothing. tried waiting for a bit, but nothing seems to happen
have to manually turn of phone, and reboot. tried this several times, but same result.
after reboot i turned to the recovery to look after any solutions there, but nothing
started adb, just to check, and it says "device unauthorized"
sortof gave up, so figured I could atleast get going installing apks, but after downloading f-droid, I couldnt get it to install
found out this was some sort of permission issue, so had to move it to internal storage to get it to install
after installing some apks, I was going to transfer my contacts from my pc, but cant get mtp working..
if someone know a soulution to this, I would be really greatfull, as Im at a loss. cant seem to find anyone who has had a simillar issue..
You can always use EDL and MsmDownloadTool. Check that thread
thanks, will definetly check that out.
now it apears that I have another issue, the key for adb is no longer valid. i did get the prompt when I connected the usb, but that didnt appear to do anything. have tried to revoke it, reanable, reboot both phone and pc, also delete the keys on my pc. I have no root access anymore, so cant really enter the root on my phone, to pull out the keys there, neither can i push my own keys, as it seems atleast. I may be doing it wrong too, for all i know..
If you can enable debugging and see your phone with adb devices, you can adb push /sdcard/<romfile>.zip
I am able to enable debugging mode, yes. Will this enable me to push my own key, or any other existing key for that matter, to remove the unauthorized label?
Id also like to at that i done goofed when flashing lineageOS. Ive come to and understanding that I have to flash OOS 1.5.1 (i think that was it) on both slots, before then flashing the custom rom onto the device, and reflashing twrp after that. Which i did not do. I also were running pie at that time, so theres another mistake I made to begin with. Neither was I really aware of the concept of a/b partition system at hand..
Can i switch slots in fastboot, and then boot inton twrp, and reflash back to OOS 1.5.1, on both slots, and then reflash LOS 15.1? And ofcource reflash twrp and root afterwards, which totally slipped my mind..
So everything went smoothly after the update but I couldnt get it to factory reset. Kept saying unable to mount. So I tried the repair option on TWRP and that wiped the OS. Now I can't get into recovery only the fastboot function. What can I do?
fastboot boot twrp.img on your PC?
Maybe you are using the wrong one, the inoffical twrp comes in Android P and Q flavour
I have also had the issue where neither started, after shutting down and waiting for a while it worked again
I had same problem totally black dead screen, nothing happens for couple of minutes, I tried all key combinations and it didn't respond. Somehow after a while (like 5 min. ) I tried vol up+down+power button, it took me to fastboot screen. Then I flashed everything back in, downside Lost All data even internal storage.
Hi everyone.
Last night my phone ran out of power and when I charged it back up it wouldn't boot at all, so this morning I decided to try and fix it but I think I have just screwed it up even more to the point that its completely bricked.
I could still access TWRP and tried to reinstall the firmware and flash TWRP through the checkbox execpt about 1 minute in the screen went off due to the time out, but the screen wouldn't come back on at all so I left it for an hour just in case if it was still running in the background, after this time I hard restarted the phone and entered TWRP again and but it didn't install the firmware properly and my computer wasn't reading the phone properly so as a test I tried to swap bootloader from A to B stupidly and now I can't seem to access anything, only thing I can do is the menu where it says start, power off, recovery mode and restart bootloader. Pressing any of these settings seems to just put me back in to this menu again.
When plugging in the phone in to the PC it make's no noise at all as well.
Have I completely hard bricked my phone? Or is there a way to fix it?
Thanks Ben
All fixed I flashed the RAW firmware