Database Develop

Stuck in Boot and no way to enter Recovery

Hello LG-2x owners !
I am in a big mess!
I just installled a new rom: http://forum.xda-developers.com/showthread.php?t=1699066
My Problem:
When I start my phone , it stucks in the boot. The bootlogo appears, it loads a few seconds and then it just reboots. Over and over again. No deal, I dealed allready with a thousands of bootlops but I cant enter the recovery menu in this case.
Why not? I push all the buttons like Power + Volume Up or Power + Volume down but it enters the boot.
I am so confused and out of plan.
How could I fix it?
Please help me XDA-Community!

Are you pressing the volume and power button past the first LG logo (white only) until you get to the second LG logo (with blue halo in background)?
Try releasing the keys only after you see the second logo.
Sent from my LG-SU660 using xda premium

Thanks for your reply, buddy
I really appriciate it.
The logo wih the colorfull background is not appearing. Thats the main problem, the entrance to the recovery is not there anymore. No colorfull lg logo, nothing.
Its like this: I push the requiered buttons at the very beginning, while pushing this buttons the phone starts. The LG Logo appears (without Background) and the bootlogo appears from this rom.

You might have to reflash your phone and start all over again. Check here for an emergency flash.

Assuming you have it backed up, you can also try this to hard reset:
http://www.knowyourmobile.com/lg/lg...3107/how_to_hard_reset_the_lg_optimus_2x.html

aragorn7 said:
Assuming you have it backed up, you can also try this to hard reset:
http://www.knowyourmobile.com/lg/lg...3107/how_to_hard_reset_the_lg_optimus_2x.html
Click to expand...
Click to collapse
This will ONLY work if you're able to boot your phone normally, and able to access the menus. And if he has CWM installed, holding the power button + vol down will enter CWM automatically. Correct me if I'm wrong!

korgndm said:
This will ONLY work if you're able to boot your phone normally, and able to access the menus. And if he has CWM installed, holding the power button + vol down will enter CWM automatically. Correct me if I'm wrong!
Click to expand...
Click to collapse
Hes right. I allready tried it. Not working.
Could you PLEASE make a detailed guide for me?
I just dont understand how to install ne nv flash drivers and stuff.
Please make a tutorial for me becuase I dont get the other one

Take a look here.

I saw this link allready but I dont understand the thing with installing the "ATX drivers".
I dont understand it because I got german windows and on top of that there are no photos or anything to know what he means so could you make something else to make it easier to understand?

Do you have take out the accu, take back in, and then hold power and vol-down till 2. boot logo appeared?
Gesendet von meinem HTC One S mit Tapatalk 2

it cant be more easy.
after you pull out the battery you press vol down vol up and connect with data cable to pc. nothing appears, but you go to control panel, then to system and there to device manager, you will se list of all devices and one of them will have some symbol. i think its question mark, you will click it with right mouse button and choose update driver, you will click find driver manually and find the directory with driver extracted from downloaded archive. click ok and driver is installed.
then you can navigate in windows terminal to folder with extracted archive and run the *.bat script with internal or external storage. you can download archive with whole rom on other threads or forums and by run the *.bat load new rom t phone

XXMrHyde said:
Do you have take out the accu, take back in, and then hold power and vol-down till 2. boot logo appeared?
Gesendet von meinem HTC One S mit Tapatalk 2
Click to expand...
Click to collapse
I did everything like described by the other links. It looks like this emergency flash is the last chance to get the game on.
Could you please explain me how I can install this apx driver ?

Zakkusu said:
I did everything like described by the other links. It looks like this emergency flash is the last chance to get the game on.
Could you please explain me how I can install this apx driver ?
Click to expand...
Click to collapse
The instructions on how to install the apx driver is here (see step #2):
http://forum.xda-developers.com/showthread.php?t=1327599

I did it !
Thank to the guide and to you guys, thanks a lot !!!

INSTALLING NVFLASH UTILITY (USING WINDOWS 7)
1. Download NVFlash Utility and Drivers here, and extract to a location of your choice (e.g.: Desktop);
2. Turn off your phone, remove the battery, SIM card and external SD;
3. Hold VolUp + VolDown buttons at the simultaneously and plug in your USB cable (if you use a desktop computer, I recommend using your rear USB ports). Your phone will show a black screen and you should see Windows trying to install a new device, but failing.
4. Right click on the notification showing a failed driver instalation (bottom right corner of your screen), and select 'Update device driver';
5. Select 'Browse computer...', and then select 'Let me pick...', followed by 'Have disk'.
6. Browse to directory you extracted the the zip you downloaded earilier, and point to 'usbpcdriver';
7. Accept any warnings, including the big red alert (you may need to disable UAC);
8. Now in Device Manager under 'USB Controllers' you should have an 'NVIDIA USB Boot-recovery driver for mobile devices';
If everything goes alright, you should now be prepared to flash your phone using NVFlash.
FLASHING YOUR DEVICE
This is the easy part.
Just go to the folder where you extracted the zip, and run 'flash'.
Wait until the utility works its magic and when complete, disconnect your phone from the USB cable, put the battery back in and SIM Card, and reboot to the stock LG ROM.
First boot might take a while, but it will eventually boot and that's all there is too it.
Hope this helped!
Credits to djmcnz @Modaco for the guide.

Error message when starting

was with the original rom lg. and then went instalr the recovery of the cyanogen rom manager app, and then hung up the phone and now the message appears in red at the top of the screen
"Critical Failure: Unable to start Kernel.
Unrecoverable bootloader error (0x00000002)"
and I can not get into download mode to install the original rom again.
and now what do I do? I lost my phone?

you flashed cwm without unlocking your bootloader. re-flash latest jellybean kdz file for your phone using http://forum.xda-developers.com/showthread.php?t=2069723, then read some more about unlocking bootloader, and then start again.

Flying_Bear said:
you flashed cwm without unlocking your bootloader. re-flash latest jellybean kdz file for your phone using http://forum.xda-developers.com/showthread.php?t=2069723, then read some more about unlocking bootloader, and then start again.
Click to expand...
Click to collapse
but now I am unable to get into download mode on the phone. is
" Now just hold down vol - key ( hold hold hold dont release !!!! ) and plug the USB cable until you get screen like this :-"
he does not. whenever I do this it only vibrates strong and goes to the screen with the error message. I do not know why that. remember one time it happened to me already but can not remember how I resolved it is possible to even lose the download mode?

Its not possible afaik. Are you sure you are holding only vol - key and plugging in? Dont hold power key!

yes, I'm almost the whole day trying to get into download mode by pressing volume down + connecting the usb. and whenever it vibrates strong and hangs on lg logo. tried to volume up + usb connect. and no download mode. I'm going crazy with this phone. otherwise hesitate to hard reset? or other shortcut to download mode?

Rafael20. said:
yes, I'm almost the whole day trying to get into download mode by pressing volume down + connecting the usb. and whenever it vibrates strong and hangs on lg logo. tried to volume up + usb connect. and no download mode. I'm going crazy with this phone. otherwise hesitate to hard reset? or other shortcut to download mode?
Click to expand...
Click to collapse
hard reset wont help you, as far as i know, you somehow need to enter s/w upgrade screen. did you try it with battery out?

he battery of the same error, and no battery it does nothing, or vibrate, or flash screen, nothing happens

Will I not be able to see my optimus running again? :crying:

it is not possible to load the kernel, what could I do?

Critical Failure: Unable to start Kernel. Unrecoverable bootloader error (0x00000002)
Rafael20. said:
it is not possible to load the kernel, what could I do?
Click to expand...
Click to collapse
Hi Raphael20 and everyone else,
Did you manage to figure out a solution to this? I have the same issue, i.e. cannot start my phone by holding the power button. Not even when people suggest to get to the S/W Update screen by holding the Volume down + plug into the computer.
I got to this error when I tried to do a factory reset. I installed the ClockworkMod Recovery. Then the factory reset via Volume up + Power button gave me the "Critical Failure: Unable to start Kernel" error. I somehow managed to get access to my phone by holding the Volume down + plug into the computer. Then tried to do a factory reset via the system settings of my phone. My phone restarted and then gave me the "Critical Failure: Unable to start Kernel" screen of death! Now Volume down + plug into the computer gives me the "Critical Failure: Unable to start Kernel", no matter whether I have restarted my computer and I have tried another computer. It seems that the bootloader is wrecked.
Does anyone have any suggestions?
Thanks!

[Q] Need bootloop help

I'm trying to remotely help a friend with a Nexus 6 stuck in a bootloop. The phone is new, just out of the box. He accepted an OTA update before doing anything else, so no USB debugging (or anything else) was set. Now it's stuck in a bootloop.
Is there a step by step guide available to allow flashing a factory image in this situation. Everything I find so far requires USB debugging to be set first. Or, are we talking brick? Returning the phone would be very difficult.

Bob Coxner said:
I'm trying to remotely help a friend with a Nexus 6 stuck in a bootloop. The phone is new, just out of the box. He accepted an OTA update before doing anything else, so no USB debugging (or anything else) was set. Now it's stuck in a bootloop.
Is there a step by step guide available to allow flashing a factory image in this situation. Everything I find so far requires USB debugging to be set first. Or, are we talking brick? Returning the phone would be very difficult.
Click to expand...
Click to collapse
If I were your friend I would put the phone back in the box take it back to the store and demand a brand new one immediately that shouldn't be happening on the stock device

toknitup420 said:
If I were your friend I would put the phone back in the box take it back to the store and demand a brand new one immediately that shouldn't be happening on the stock device
Click to expand...
Click to collapse
Unfortunately, he bought in the US and is now far outside the US. That's why returning would be difficult.

Dam. Can he boot to the bootloader.

toknitup420 said:
Dam. Can he boot to the bootloader.
Click to expand...
Click to collapse
He can do each of these steps but when it reboots after #6 it goes back to the dead robot and "no command"
1. With the phone powered off, press and hold the Volume Down button and the Power button at the same time until the device turns on. You will see the word "Start" with an arrow around it.
2. Press the Volume Down button twice to highlight "Recovery mode"
3. Press the Power button to restart into Recovery mode. You'll see an image of an Android robot with a red exclamation mark and the words "No command."
4. While holding down the Power button, press the Volume Up button.
5. Use the volume buttons to scroll to "wipe data/factory reset" and press the Power button to select it.
6. Scroll down to "Yes - erase all user data" and press the Power button to select it.

Bob Coxner said:
He can do each of these steps but when it reboots after #6 it goes back to the dead robot and "no command"
1. With the phone powered off, press and hold the Volume Down button and the Power button at the same time until the device turns on. You will see the word "Start" with an arrow around it.
2. Press the Volume Down button twice to highlight "Recovery mode"
3. Press the Power button to restart into Recovery mode. You'll see an image of an Android robot with a red exclamation mark and the words "No command."
4. While holding down the Power button, press the Volume Up button.
5. Use the volume buttons to scroll to "wipe data/factory reset" and press the Power button to select it.
6. Scroll down to "Yes - erase all user data" and press the Power button to select it.
Click to expand...
Click to collapse
On the "no command" screen, hold power, push volume up and reenter recovery. Select reboot system. See if the phone boots up.

Evolution_Freak said:
On the "no command" screen, hold power, push volume up and reenter recovery. Select reboot system. See if the phone boots up.
Click to expand...
Click to collapse
Same result "no command"

Bob Coxner said:
Same result "no command"
Click to expand...
Click to collapse
At this point, you must connect to a PC and see if you can get fastboot to recognize the device. Then we can proceed.

Will the Nexus Root Toolkit http://www.wugfresh.com/nrt/ work even though USB debug has not been turned on?

Bob Coxner said:
Will the Nexus Root Toolkit http://www.wugfresh.com/nrt/ work even though USB debug has not been turned on?
Click to expand...
Click to collapse
USB debugging does not have anything to do with being in fastboot or recovery. As long as the proper drivers are installed, your computer can recognize it and you can use fastboot in bootloader.

Motorola G5S Plus reboot and now only blinks led light and does not start

I don't know what happened, today I woke up, pick my phone, anwser a few messages and them suddenly my phone reboot and all goes blank. So I connected it to the power, the cellphone started to blink the blank led light e shows the power symbol over and over, them after a time shows this message: "Start Up Failed" Your device didn't start successfully. Use the Software Repair Assistant on computer to repair your device."
I did what was told, but after all the recover procedure complete the same messages and bliking behaviors starts again. My phone is not rooted. Is there a solution that I can try to solve this issue?
Thanks in Advance.

Motorola G5S Plus reboot
Try this. Start the bootloader (Boats Vol -, + power at the same time), browse with Vol + or Vol-, search for "recovery mode", with power you accept. If "no command" appears on the screen, press power + Vol +. There you have many options. You can do Factory reset.

lokochris said:
Try this. Start the bootloader (Boats Vol -, + power at the same time), browse with Vol + or Vol-, search for "recovery mode", with power you accept. If "no command" appears on the screen, press power + Vol +. There you have many options. You can do Factory reset.
Click to expand...
Click to collapse
Hi lokochris, thanks for answering
When I select the recovery mode, this message appears in the phone: "failed to validate recovery mode. ERROR: Failed to pass validation, backup to fastboot."
The factory reset only reboot again, and again blank light blinking and power logo in a loop.

Motorola G5S Plus reboot
use this method https://www.youtube.com/watch?v=fMWbC_c6758

This youtube method was the first thing I tried. It shows the Motorola logo and returns to the same message. I believe something is blocked, because the Power logo remains in Loop and the white light is flashing.
These results are displayed only when the phone is charging. Without charging or cable on the PC, my phone doesn't even start.

Motorola G5S Plus reboot
Try this. If the problem continues, it may be a hardware problem. I have read over there, if you try to remove google account or unlock bootloader, the phone enters hard brick and it is almost unbrick.
https://forum.xda-developers.com/moto-g5s-plus/how-to/batch-scripts-sanders-unbrick-flash-t3895165#post82964107

lokochris said:
Try this. If the problem continues, it may be a hardware problem. I have read over there, if you try to remove google account or unlock bootloader, the phone enters hard brick and it is almost unbrick.
https://forum.xda-developers.com/moto-g5s-plus/how-to/batch-scripts-sanders-unbrick-flash-t3895165#post82964107
Click to expand...
Click to collapse
Hi lokochris,
What I need to do to run this batch scripts? because the link only talks about the scripts, but not what you need to do to run them.

Moto g5s plus reboot
Just run the one you need ( bootload), connect the phone to the PC and run automatically

Stuck In Bootloop (Not able to get in fastboot or recovery mode)

My device went int bootloop suddenly while I was using it. I not able to get in fastboot (when I press Power + Down it shows fastboot window for a sec and reboots again ) or recovery mode(When I press Power + Up, Screen shows up saying no command).
I was using official build(July patch). I have not enabled ADB. My bootloader is also locked.
Is it possible to get this device working?
Any help will be appreciated.

dha72 said:
My device went int bootloop suddenly while I was using it. I not able to get in fastboot (when I press Power + Down it shows fastboot window for a sec and reboots again ) or recovery mode(When I press Power + Up, Screen shows up saying no command).
I was using official build(July patch). I have not enabled ADB. My bootloader is also locked.
Is it possible to get this device working?
Any help will be appreciated.
Click to expand...
Click to collapse
search for a video tut on youtube on testpoint

dha72 said:
...or recovery mode(When I press Power + Up, Screen shows up saying no command)....
Click to expand...
Click to collapse
This is normal behavior of stock recovery: seeing "no command" hold "power" and click "Vol+", - to get to the stock recovery menu (btw, search would 100% give you this tip even in these forums).
As you are locked, and thus you have surely lost user data, you can try to make factory reset from recovery menu.
Yet I'd try to connect phone to power and make numerous attempts to reboot, occasionally rebooting into fastboot and into recovery, - with the hope that phone will switch into the other A/B slot.
If nothing helps, TestPoint/EDL is the only option except service.
But again, the problem may be hardware issue, and as you are supposed to disassemble phone preforming TestPoint, I'd check connectors inside and tried to reboot again before reflashing in MiFlash. And do not forget to reflash in fastboot after MiFlash reflash (and unlock phone - which I did immediately after purchase).