Dear experts,
Phone model: Karbonn A9+
Rom: Custom Rom Hyperion Skyfall
When I hold the power button, the phone turns on and off, No problems with that.
However, when I press volume Up+Power, I get a green screen saying FASTBOOT at the top left corner and that’s it. Nothing happens from that point.
when I press volume Up+Power, I get a green screen and holding the buttons past that I get a red screen saying RECOVERY at the top left corner and that’s it. Nothing happens from that point.
However, when I press volume down+Power, I get a black screen saying ENTRY QPST DOWNLOAD at the top and that’s it. Nothing happens from that point.
I have to remove the battery to turn my phone off.
Moreover, I tried a factory reset erasing internal and external storage, after erasing when the phone is rebooted and gets stuck in the start-up screen. I removed the battery and powered on the mobile ,no problem at all the phone turns on but not resettted.
What I did?
Tried to install latest CWM through recovery, updated it but I pressed something instead of restart your device.
What should I do to make everything work again? I am a noob in Android, please be extra patient and illustrative
Many thanks in advance
Related
I just downloaded the update for the Thunderbolt and when it restarted it stopped at the screen with the little green android and the exclamation mark in the white triangle.
It won't do anything else. I tried holding the power button and volume up, and it did nothing.
When I take out the battery and reboot, it goes to the home screen just long enough to verify the SD card before it shuts down again and tries to install the update.
Any suggestions?
Can you boot into recovery? If so, try clearing your cache and rebooting someone in another thread said that fixed the same issue.
Hold power and volume up to boot into recovery right?
Power and volume down.
Power and volume down if you have installed a custom recovery like Clockwork.
Cache cleared, phone working.
Thanks a ton!
Hi
I have been helping a friend repair their phone after it got water damaged
THe battery has been replaced and the phone boots and can go into Android
I have since Unlocked the bootloader
Installed TWRP
Rooted it
Installed a Cusom Rom
And installed a Custom Kernel with no issue.
So In my eyes this Phone is 100% working
The Problem i am stuck with is that whenever the phone is turned on it goes straight into the Bootloader screen and the Option bit on the top (Start, Recovery, Reboot BootLoader and Power off)
Constantly scrolls through each option as though the volume key is being pressed
if i press the power button as each option appears the phone will boot into the option i have chosen
While in Android all the buttons work correctly.
Vol up and Down and the power either going to sleep or bringing up the power menu.
Any ideas would be a great help
Probably HW related, but not sure
Sirklip said:
Hi
I have been helping a friend repair their phone after it got water damaged
THe battery has been replaced and the phone boots and can go into Android
I have since Unlocked the bootloader
Installed TWRP
Rooted it
Installed a Cusom Rom
And installed a Custom Kernel with no issue.
So In my eyes this Phone is 100% working
The Problem i am stuck with is that whenever the phone is turned on it goes straight into the Bootloader screen and the Option bit on the top (Start, Recovery, Reboot BootLoader and Power off)
Constantly scrolls through each option as though the volume key is being pressed
if i press the power button as each option appears the phone will boot into the option i have chosen
While in Android all the buttons work correctly.
Vol up and Down and the power either going to sleep or bringing up the power menu.
Any ideas would be a great help
Click to expand...
Click to collapse
after 3 years did u find any solution. exactly same issue happen today :crying:
Try updating to the latest bootloader. But I assume the buttons get stuck sometimes. Try smacking the buttons s a couple of times. Hope that works.
Dear experts,
Phone model: Karbonn A9+
Rom: Custom Rom Hyperion Skyfall
When I hold the power button, the phone turns on and off, No problems with that.
However, when I press volume Up+Power, I get a green screen saying FASTBOOT at the top left corner and that’s it. Nothing happens from that point.
when I press volume Up+Power, I get a green screen and holding the buttons past that I get a red screen saying RECOVERY at the top left corner and that’s it. Nothing happens from that point.
However, when I press volume down+Power, I get a black screen saying ENTRY QPST DOWNLOAD at the top and that’s it. Nothing happens from that point.
I have to remove the battery to turn my phone off.
Moreover, I tried a factory reset erasing internal and external storage, after erasing when the phone is rebooted and gets stuck in the start-up screen. I removed the battery and powered on the mobile ,no problem at all the phone turns on but not resettted.
What I did?
Tried to install latest CWM through recovery, updated it but I pressed something instead of restart your device.
What should I do to make everything work again? I am a noob in Android, please be extra patient and illustrative
Many thanks in advance
Hi,
There is a Q&A thread for your device right here.
This is a great place to ask this and other questions you may have from others who own or are familiar with your phone.
Regards,
Hi,
I think that this post couild help you => Karbonn A21 > A21 General > Karbonn A9+/A21/CM Flare Development Thread > Post #947 > Entry QPST Download !!! Fixed !
So I did a factory reset, the tab rebooted to wipe the device, went to nvidia logo then screen went black, shuts off automatically and I can turn back on just for it to get right past the logo and shut off again, I've tried volume up with power and volume down and same thing happens. Sometimes the power won't even turn it back on for 5-10 minutes. Any suggestions?
kregstrong said:
So I did a factory reset, the tab rebooted to wipe the device, went to nvidia logo then screen went black, shuts off automatically and I can turn back on just for it to get right past the logo and shut off again, I've tried volume up with power and volume down and same thing happens. Sometimes the power won't even turn it back on for 5-10 minutes. Any suggestions?
Click to expand...
Click to collapse
Dumb question, but are you sure the battery is charged? I would leave it plugged in for awhile and try again. Then if it still is not booting try to enter download mode while connected to PC. Mine did something similar to this once when I did a factory reset as well. It only recovered after connecting USB to my PC.
I'm guessing you have custom recovery installed?
1. Download the factory image from NVIDIA website (specific to your device version),
2. Go into fastboot by pressing volume down and give a slight nudge to the power button (don't press until the logo comes up, just a quick nudge will do)
3. Unlock your bootloader using the instruction which can be found on this forum (if you have, skip this step) sorry I'm on mobile phone, so a bit hard to do a search for the link with small screen.
4. Unzip the recovery image zip file.
4. While still in fastboot, flash the recovery images using flash-all.bat contained in the unzipped folder.
You will lose your custom recovery and your root, but since you were gonna wipe your device anyway.. let me know if you're stuck somewhere.
I think i might have found fix....
Shut down the device with long press (8sec) Power button
Press and hold Vol down key
Press and release Power key
Device enters fastboot mode
Select Recovery mode option (using Vol up/down for navigation and power key to select)
Device enters recovery mode (after showing NVIDIA boot logo) with Android Robot screen.
Press and release Vol UP + Power button simultaneously
Then select wipe data/factory reset with Vol up/down key to navigate and power key to select
try this but be PATIENT AND wait for it to say erasing then i think ill be normal once its done also just wait with it on the "blank screen" we could have just got ahed of are selves and whent to conclusions and thought it was bricked
Hello, I have a big problem with rebooting to recovery mode. I can reboot to recovery only with application. If I turn my phone off and then hold volume up + power, then I get black screen with only one yellow Chinese text on the very top left side and then after 1 minute it's get into Chinese recovery.. My question is: how to get into custom recovery without using applications like for example "Quick boot".
I need it, because I have to install ROM again, because I did a big mistake, when I deleted one file from the "system" folder. Now my phone boot without problem, but after that everything is lagging and all applications stop working, then it automatically reboot phone..
I can't flash firmware with SP Flash Tool, because of Windows drivers. My laptop does not recognize the phone. It says: "Unknown USB device".. That's why I need to get into custom recovery for installing ROM.
Thank you in advance for help.
This helped:
With the phone powered off
Hold Volume Up + Volume Down + Power button
When phone vibrates release power button only.
As the No Comman Screen release all buttons.
Press and hold the power button and tap the Volume Up button.
Release the buttons. You must get into recovery mode.
Thanks to: Moto_Joy