[Q] ROM (?) problem on LGGT540; unlocking - General Questions and Answers

ROM is http://forum.xda-developers.com/showthread.php?p=35271588#post3527158816:37
Can't unlock my phone, screen is black, but buttons and UI works.

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My Qtek S200 Dead...Urgent help required

Hi,
By mistake I put a custom ROM for KJAM on my S200...This ROM is used before u start unlocking CID. The ROM went ok in the setup, and then it reset the device.
After that I could not even see anything, as the screen was black, with some white light flashing...& and the power, bluetooth LEDs kept flashing with black screen.
I tried to get into the bootloader mode, but no way...it gives the same black screen with blinking LEDs....
Please Help

[Q] Sometimes display doesn`t works

I have bought an used phone. There was installed custom rom and not working video recording. I decided to change the firmware and then noticed a bug.
Lights light up, and the LCD screen shows nothing. First, I decided that I killed the phone, but after a few rebooting the image appeared.
At the same time the phone and touch screen is working!!!
Now installed Energy ROM Android 2.3.5 Sense 3.5.
Unlocked S-OFF. HBOOT 1.17.0011
Can somebody tell me what is happened with my phone?
P.S. Sorry for my English
P.P.S. I have tried to reflash firmware, CWM and hboot - nothing helps

[Q] Touch screen not working for few seconds

When i try to unlock my phone , the touch is not responsive for few seconds/attempts . After that the functioning is very smooth.The pull out ring to icon takes me 5 or 6 tries to unlock .I presumed that there is a bug and hence installed an app call no lock screen which removed the pull the ring...but still when i unlock my phone the touch screen is still unresponsive/faintly responsive for some duration(usually 4/5 attempts/seconds) after which it works fine.So i have no clue where the problem could be..is it the OS? Android version 4.0.3 and htc sense 3.6
straightoutofhell said:
When i try to unlock my phone , the touch is not responsive for few seconds/attempts . After that the functioning is very smooth.The pull out ring to icon takes me 5 or 6 tries to unlock .I presumed that there is a bug and hence installed an app call no lock screen which removed the pull the ring...but still when i unlock my phone the touch screen is still unresponsive/faintly responsive for some duration(usually 4/5 attempts/seconds) after which it works fine.So i have no clue where the problem could be..is it the OS? Android version 4.0.3 and htc sense 3.6
Click to expand...
Click to collapse
you should reflash rom.
Go to cwm
Select wipe delvik cache
Reboot
Callibrate phone
This should fix ur problem
Sent from my GT-S7500

[Q] Bootloader Issue: screen never turns off while powered off+charging

Recently I dived into flashing custom recoveries and discovered TWRP, which I have no problems with (as in it does everything I want).
However, after unlocking the bootloader and flashing the recovery I found a bug/glitch/issue, I'm not sure. Whenever I power off my device, an LG Optimus G (sprint), it does so just fine. When I plug in my charging cable it turns on, showing the Google logo with an unlocked padlock at the bottom, then shows a screen with a charging battery indicator/animation. About 10-20 seconds after this the screen shows nothing but is still on, as if it were just a black image. I cannot power the device off completely, and when I try to it just repeats this. My phone will warm up after a while, so the only way to charge it safely is to keep it on all the time.
How can I fix this issue w/o relocking the bootloader?
I have an LG optimus G ls970, Rooted, Stock ROM, Unlocked bootloader w/ TWRP recovery.
Any help or answer to this will make me super happy, thanks in advance.

Lock screen Problem

My Android lock-screen not work properly after rooting my phone how to resolve it??

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