Database Develop

[Q] help me!!!!!!!!!!!!!!!!!!!!!!

so i just rooted my lg optimus 4x hd (ics 4.0.3) and then i flashed a cm 10.2 rom and i think i forgot to unlock the bootloader first, and now when i reboot my phone it gets to this screen ( 2 pictures attached) where there is the lg logo and some red writing,
it said: [LGE_SECURITY] ERROR: boot image signature
Critical failure: Unable to start kernel.
Unrecoverable bootloader error (0x00000002).
so can anyone please help me :crying:

First help: Edit your post and put a more descriptive title, to attract the people who might be able to help you. With the current title, the entire thread will get skipped by most of us. Hint: Unrecoverable bootloader error after flashing CM 10.2 would be a good example.

Some of people hate noobs.. there so tech e tech.. I'm a Noob myself. .they want u to beg for answers. . Saying stuff like. No I won't help u until u do this r that. . Anyway read and watch YouTube videos. .read..read..read some more. .what I did
Sent from my SPH-D710 using xda app-developers app

Download mode
Can you enter in download mode ?
you should take off the battery and put in on, pres down volume button and plug the usb cable wihout pressing the power

WelfareBaby said:
Some of people hate noobs.. there so tech e tech.. I'm a Noob myself. .they want u to beg for answers. . Saying stuff like. No I won't help u until u do this r that. . Anyway read and watch YouTube videos. .read..read..read some more. .what I did
Click to expand...
Click to collapse
We don't hate noobs, but when people sign up and refuse point-blank to follow the first rule of XDA and search first.
---------- Post added at 11:01 AM ---------- Previous post was at 10:56 AM ----------
mohamedyasser15 said:
so i just rooted my lg optimus 4x hd (ics 4.0.3) and then i flashed a cm 10.2 rom and i think i forgot to unlock the bootloader first, and now when i reboot my phone it gets to this screen ( 2 pictures attached) where there is the lg logo and some red writing,
it said: [LGE_SECURITY] ERROR: boot image signature
Critical failure: Unable to start kernel.
Unrecoverable bootloader error (0x00000002).
so can anyone please help me :crying:
Click to expand...
Click to collapse
You need to be on Stock v4.1.2 ROM before you can do any of this stuff.
Search please as it has been covered countless times in this forum.

Thanks
thanks everybody i was able to overcome my problem i used kdz file, but i wanted to ask how to root it when it's running jb 4.1.2

mohamedyasser15 said:
thanks everybody i was able to overcome my problem i used kdz file, but i wanted to ask how to root it when it's running jb 4.1.2
Click to expand...
Click to collapse
You wanted to ask, but decided not to as the information already exists and you don't want to annoy people by asking silly questions

mohamedyasser15 said:
thanks everybody i was able to overcome my problem i used kdz file, but i wanted to ask how to root it when it's running jb 4.1.2
Click to expand...
Click to collapse
Dear My,Friend(s)
I decided to change my android version form official (4.03) to 4.4.4 kitkat , and i flashed CWM recovery before unlocking boot loader.
so I can not access my recovery mode of my 4X LG phone. ( with power and volume down keys)
also when Rom manager tried to boot downloaded recovery following error appears above the LG logo,
"boot image signature Critical failure: Unable to start kernel. Unrecoverable boot loader error (0x00000002)."
i thick i did it with out rooting of phone.
so the big problem is when i want to rest factory from the setting of phone, above metion erorr is appeared again.
i think you had same problem too,
I will appreciate if you help me to fix this problem.
thanks

mohamedyasser15 said:
thanks everybody i was able to overcome my problem i used kdz file, but i wanted to ask how to root it when it's running jb 4.1.2
Click to expand...
Click to collapse
i did it when i was 4.1 with root masters app, see a tutorial do 2 clicks and will be rooted, download supersu from playstore, update the binary and if i dont remember bad the app will ask you if you want to use this for all root permission, push yes, (if the root masters app asks you something when you are doing this push yes and after this you will can erase all the apps and the app of root masters, its really easy, but see a guide for if i didn t sayed something.

[Q] Need some help

Hey, im a newbie here in the forum, but i got some knowledge in the android world
I have a Lg Optimus 2X rooted on 4.0.4, and im a little confused about some things...
i want to install ClockwordMod, but i dont know how... i open rom manager 5.5 and i find my device on the list (lg p990) i fond it and then i downloaded the CWM but when it reaches 100% it looks like nothing gets installed :s i dont know what is happening. i found another ways to do this (running .bat files on my pc, but it doesn't work either) you guys have a clue why is this happening?
i want to install cyanogenmod 10.1, and i know i need CWM... but in their website they say: You must use the Gingerbread bootloader and partition layout in order to use CyanogenMod. The ICS firmware is NOT compatible.
my question is: i have lg original 4.0.4, this means i have to downgrade right? i have to downgrade maybe to 2.3 right? ^
(by the way sorry about my english, im from portugal )
thanks to all

well if you get nothing then it means it is for the old gb bootloader if you have a pink lg logo then you are on the new bootloader so find roms for thenew one or you can downgrade but dont forget your internalsd wil be wiped.
look in the development forum for the aio toolkit and dont forget to install apx drivers hope this could help you
Sent from my LG-P990 using xda app-developers app

wulsic said:
well if you get nothing then it means it is for the old gb bootloader if you have a pink lg logo then you are on the new bootloader so find roms for thenew one or you can downgrade but dont forget your internalsd wil be wiped.
look in the development forum for the aio toolkit and dont forget to install apx drivers hope this could help you
Sent from my LG-P990 using xda app-developers app
Click to expand...
Click to collapse
yeh i do have a pink lg logo, but how can i find roms if i cant install a recovery?
i have that toolkit, i rooted my phone with that

icetuto said:
yeh i do have a pink lg logo, but how can i find roms if i cant install a recovery?
i have that toolkit, i rooted my phone with that
Click to expand...
Click to collapse
you can install also recovery with that and unlocked bootloader if you don;t have it yet

wulsic said:
you can install also recovery with that and unlocked bootloader if you don;t have it yet
Click to expand...
Click to collapse
this is the toolkit.(attachment)
so all i have to do is, press 2 (change recovery image) and then select via ADB and my recovery will be installed?
and about the bootloader just press 8 and there will be no problems right? no chance of bricking the phone...
thx a lot for the quick responses

Stock on LG logo screen

Hi there
I have a big problem in my phone LG optimus 4x HD.. i did root it it was JB version and i root it
1st it was okay nothing happen then i try to instal some fonts and then it says reboot ur phone now and i did
next thing happen it stock on LG logo screen and i did the reset part and still nothing happen can someone tell me what to do ..
its rooted and i know i cant bring it to waranty store help please

1. try going into recovery and do a factory reset.
2. if that doesn't help, reflash and all your problems are solved.
do a clockwork mod backup before messing around next time

Life'sGood said:
1. try going into recovery and do a factory reset.
2. if that doesn't help, reflash and all your problems are solved.
do a clockwork mod backup before messing around next time
Click to expand...
Click to collapse
yea how to reflash ... sorry im newbie in this situation so i really dont know what to do ..

studzlance said:
yea how to reflash ... sorry im newbie in this situation so i really dont know what to do ..
Click to expand...
Click to collapse
Omg search please...
Sent from my LG-P880 using xda app-developers app

studzlance said:
yea how to reflash ... sorry im newbie in this situation so i really dont know what to do ..
Click to expand...
Click to collapse
here's your answer ....... somewhere

studzlance said:
yea how to reflash ... sorry im newbie in this situation so i really dont know what to do ..
Click to expand...
Click to collapse
Use LG mobile support tool, also its "stuck" not "stock"

What are you on? He needs to reflash the rom as he changed the fonts and some may be missing, happens to loads of people, no need for a factory reset, just restore the fonts folder or reflash the rom, if you don't have an unlocked bootloader, bite the bullet, unlock ya bootloader and come over to AOSP in which i would recommend a 4.2.2 ROM.. or do the long winded way of flashing the stock Rom, your all giving some real extreme methods, it doesn't have to be this complicated..

penguin449 said:
What are you on? He needs to reflash the rom as he changed the fonts and some may be missing, happens to loads of people, no need for a factory reset, just restore the fonts folder or reflash the rom, if you don't have an unlocked bootloader, bite the bullet, unlock ya bootloader and come over to AOSP in which i would recommend a 4.2.2 ROM.. or do the long winded way of flashing the stock Rom, your all giving some real extreme methods, it doesn't have to be this complicated..
Click to expand...
Click to collapse
Dude the thing is i cant open my phone it stuck on LG logo screen cant do any ..
can u post just a step how to do this .. like what u saying

studzlance said:
Dude the thing is i cant open my phone it stuck on LG logo screen cant do any ..
can u post just a step how to do this .. like what u saying
Click to expand...
Click to collapse
asking for spoonfeeding isn't gonna help you in XDA forums.
instead of wasting your time here look for that guide to reflash in PLAIN SIGHT.
This is not a customer care center.

Xperia Z stuck on boot with pink LED after installing CWM

guys plz help me out plz
i have a xperia z c6603 model.. i have unlocked bootloader. i was installin CWM from http://www.editandroid.com/how-to-install-custom-cwm-recovery-in-sony-xperia-z-unlocked-bootloaders/
and what happened is that i was doing it and i entered the command that was fastboot flash boot boot.img... as the tutorial says that we have done it i unplugged cable and checked the recovery was installed but now im stuck on the boot as its a neverending loop and device restarts itself but does not boot normally to android.. with pink LED to start recovery
i can access recover but when i tried a lot of time and it didnt boot normaly i accepted the REBOOT SYSTEM NOW option and it had another option to fix SUPERSU which means root
plz tell me what to do im a noob plz.. the device cant even turn off other wise i wouldve use PC companion to restore phone and kindly tell me would i have root after clicking on FIX superSU which means ROOT....plzzz tell me what to do.. i know how to install custom ROm but dont know about flashing kenals or Flashtool thing plz plz tell me waht to

As you followed a guide that just ripped DooMLoRD's work from XDA, you most probably flashed the wrong kernel for your firmware, which is the cause of your problem.
Get the correct kernel from here, which is the source of the guide and files that website is using.

thanks for reply plz stick with me for a sec plz
kingvortex said:
As you followed a guide that just ripped DooMLoRD's work from XDA, you most probably flashed the wrong kernel for your firmware, which is the cause of your problem.
Get the correct kernel from here, which is the source of the guide and files that website is using.
Click to expand...
Click to collapse
Bro should i open fastboot folder and give the "fastboot flash boot boot.img" again????
plz tell me what to do...
i also have a backup of stock rom in my sd card...i did that backup right after this incident hapened to me...should i try restoring backup?
my phone can go in the fastboot mode
\
but PC companion is not restoring my phone either it say i have cutom software on it

another thing
kingvortex said:
As you followed a guide that just ripped DooMLoRD's work from XDA, you most probably flashed the wrong kernel for your firmware, which is the cause of your problem.
Get the correct kernel from here, which is the source of the guide and files that website is using.
Click to expand...
Click to collapse
yes you're are super RIGHT BRO... i flashed the 434 v5
plz guide me should i repeat whole process of installing CWM recovery... in the fastboot section...?
should i be using flashtool...i really dont know how to use it either...but whether that'll fix it...
is my device bricked or something??

I love you man
kingvortex said:
As you followed a guide that just ripped DooMLoRD's work from XDA, you most probably flashed the wrong kernel for your firmware, which is the cause of your problem.
Get the correct kernel from here, which is the source of the guide and files that website is using.
Click to expand...
Click to collapse
MAn You saved my life literally ILY man thanks a LOt.....
if there's anything i can do for you lemme know can i donate your website or something cux i'd really love to pal... thank you very very much

Sorry I didn't reply before. I was sleeping haha.
Happy to have helped. I don't accept donations, but you can donate to a charity of your choice if you like.

kingvortex said:
Sorry I didn't reply before. I was sleeping haha.
Happy to have helped. I don't accept donations, but you can donate to a charity of your choice if you like.
Click to expand...
Click to collapse
Somebody is in love with you King

[Q] how to downgrade xperia sp unlocked bootloader

i wanted to downgrade my xperia sp to 4.1 but doing so i unloked my bootloader without backing up ta partition. me a complete newbie in flashing thing, plz can anyone give a complete guide to downgrade or to install cyanogenmod , i want a complete guide as i have no idea with cwm recovery is?? what to do ( searched a lot and just came up knowing names , besides that i dont want to do something stupid leads to brick my phone) so plz help me

saurabhkh09 said:
i wanted to downgrade my xperia sp to 4.1 but doing so i unloked my bootloader without backing up ta partition. me a complete newbie in flashing thing, plz can anyone give a complete guide to downgrade or to install cyanogenmod , i want a complete guide as i have no idea with cwm recovery is?? what to do ( searched a lot and just came up knowing names , besides that i dont want to do something stupid leads to brick my phone) so plz help me
Click to expand...
Click to collapse
Please can I know something. Have you done something with your SP? If you have, please tell me what you have currently done. If you don't, tell me that you haven't done anything.

TechnoSparks said:
Please can I know something. Have you done something with your SP? If you have, please tell me what you have currently done. If you don't, tell me that you haven't done anything.
Click to expand...
Click to collapse
i have just unlocked the bootloader only nothing else ..

saurabhkh09 said:
i have just unlocked the bootloader only nothing else ..
Click to expand...
Click to collapse
So you have unlocked a bootloader. Could you please tell me what method did you used to unlocked your bootloader? Did you use FlashTool or the "fastboot" command in adb?
And based on your first post, I have to say that you have lost your DRM keys. Without DRM keys Bravia Engine won't work.

it was some cmd method i used to unlock my phone, can u plz help getting through 4.1 or flashing my phone to cyanogenmod 11 bcoz after 4.3 update phone is too damn slow , and said me completly new so plz step by step guide is expected :angel: save my butt bro, btw after unlocking is working as it was before slow draining battery as usual

saurabhkh09 said:
it was some cmd method i used to unlock my phone, can u plz help getting through 4.1 or flashing my phone to cyanogenmod 11 bcoz after 4.3 update phone is too damn slow , and said me completly new so plz step by step guide is expected :angel: save my butt bro, btw after unlocking is working as it was before slow draining battery as usual
Click to expand...
Click to collapse
Okay I get you and I have the prerequisites beforehand. Now please confirm your intention. Do you want to use 4.1 or Cyanogenmod?

TechnoSparks said:
Okay I get you and I have the prerequisites beforehand. Now please confirm your intention. Do you want to use 4.1 or Cyanogenmod?
Click to expand...
Click to collapse
i would love to try cyanogenmod ,, but i guess u have more idea so advice me anything which is fast, smooth, lag free and stable

saurabhkh09 said:
i would love to try cyanogenmod ,, but i guess u have more idea so advice me anything which is fast, smooth, lag free and stable
Click to expand...
Click to collapse
I can't really give a suggestion. "Best ROM" depends on personal preferences. Since I am currently using CM11, I must say it works really great on my device. However, some people face problem with it such as being it laggy and everything. I hope you won't face the same thing.
Actually I have a guide that will solve your problem.
BUT BEFORE THAT please read everything there. Please follow the requirements. You may ignore any bootloader-related points. Since your bootloader is unlocked, you can skip guide number 1, and directly proceed to the section "Fastbooting DoomLord's kernel" in guide number 2. Then proceed normally afterwards. Get a CM M10 snapshot here. Psst, M11 is getting near!
Now you may go to the guide: http://forum.xda-developers.com/xperia-sp/general/guide-flashing-custom-roms-ultimate-xsp-t2888579

in order to downgrade , should i just follow 1b ??

saurabhkh09 said:
in order to downgrade , should i just follow 1b ??
Click to expand...
Click to collapse
Yes if you want to downgrade you may just and only follow 1b. However needless to say, if your bootloader is unlocked, there's no more need to backup your TA partition

thank u dude ... i flash my phone to cyanogenmod 11 m10:victory:

Next time, don't ask In general section
There's a section just for questions

saurabhkh09 said:
thank u dude ... i flash my phone to cyanogenmod 11 m10:victory:
Click to expand...
Click to collapse
Congratulations and have fun! :good:

hey bro , i m facing mobile data issues ,, it keeps getting disconnected ... :crying: while phone is working all fine with wifi ,, but cant even open a thing with mobile data

saurabhkh09 said:
hey bro , i m facing mobile data issues ,, it keeps getting disconnected ... :crying: while phone is working all fine with wifi ,, but cant even open a thing with mobile data
Click to expand...
Click to collapse
Your problem might have be something to do with APN. Just contact your service provider, and get an internet configuration. That will work for you
In Stock SONY, there is an-already method that will fetch internet config. Sadly there's no such thing in custom ROMs.
Or to make matters difficult, you can find someone with the same service provider like you, open their phone's settings, find "APN" in Mobile Networks, and copy all settings hand-by-hand to your phone.