[EMERGENCY] After installing a kernel, screen keeps turning on and off - Upgrading, Modifying and Unlocking

On my Xperia M2 4.4.4 (that can't root normally) I installed a cwm kernel.
After fastboot reboot command screen keeps turning on and off (fades in on and doesn't fade in off)
I still can enter the recovery (cwm)
Please help me!!!

Flash your stockrom using flashtool and root again. Only use cm kernels on cm based rooms.

Can I flash a rom with cwm instead of flashtool.
If only flashtool how and which?

Related

[Q] Xperia Pro flashing

So, finally I have managed to unlock my bootloader in ADB with the sony's method, I did this because I want to try out the ultima rom with kernel.
So I have never flashed a kernel, I only used wotan client and flashtool. I don't know how to start.
I have everything (latest android sdk, proper drivers, battery full, root, clockworkmod, kernel.img) only the knowledge how to do it SAFE, and the most important how do I flash it back to the original ramdisk and kernel?
PS.: I have an Xperia Pro MK16I,
Is there no guide in the rom thread?
Typed down from the sky with sexy LT15i
Try this thread http://forum.xda-developers.com/showthread.php?t=1508585
Dude, the same Ultima ROM thread has the instructions.
It's always the same.
Flash Kernel via Fastboot> Flash ROM via CWM> Full wipe.
You'll have to get the fastboot files from somewhere to flash the kernel.
Once flashed the Kernel, to flash the ROM the most common command to bring up CWM is pressing Vol - several times.
After that, you just flash the zip from Ultima.
That's it.
Unable to enter recovery mode
I am unable to enter the recovery mode by pressing the volume - key. How can i enter the recovery mode ? i am stuck on the sony logo.
I was flashing a ROM on locked bootloader and already had clockworkmod recovery. Now i can not access it

[SOLVED] Phone bootlooping (R800a, 3.01 Turbo Kernel)

I was running PACrom perfectly fine, I made a TWRP backup. I was trying to install AOKP 4.2.2 (which appeared to be successfully installed) and now my phone is bootlooping at the "Sony Turbo" logo, or it hangs there. I can't seem to reboot in to TWRP recovery either (power + VOL up at blue led). I tried reflashing the kernel in using fastboot tool but still the same result. Can't figure out what's wrong :/
Have unlocked BL w/o fastboot menu.
EDIT1: I also tried flashing the stock FTF for the R800a (4.0.2.A.0.42), and it's still stuck at the exact same screen (Sony Turbo logo). Which leads me to believe that it did not even flash the stock kernel.
EDIT2: Alright, nothing was working. So I decided to use the Sony PC Companion to "repair" my device. It's working now booting in to the OS (2.3.4), so I'm gonna try reflashing Turbo Kernel 3.1 and see if I still can't boot in to recovery.
EDIT3: Reflashed Turbo Kernel 3.1 successfully using FTF and Flashtool and am back on PACrom
pm2gonzales said:
I was running PACrom perfectly fine, I made a TWRP backup. I was trying to install AOKP 4.2.2 (which appeared to be successfully installed) and now my phone is bootlooping at the "Sony Turbo" logo, or it hangs there. I can't seem to reboot in to TWRP recovery either (power + VOL up at blue led). I tried reflashing the kernel in using fastboot tool but still the same result. Can't figure out what's wrong :/
Have unlocked BL w/o fastboot menu.
EDIT1: I also tried flashing the stock FTF for the R800a (4.0.2.A.0.42), and it's still stuck at the exact same screen (Sony Turbo logo). Which leads me to believe that it did not even flash the stock kernel.
EDIT2: Alright, nothing was working. So I decided to use the Sony PC Companion to "repair" my device. It's working now booting in to the OS (2.3.4), so I'm gonna try reflashing Turbo Kernel 3.1 and see if I still can't boot in to recovery.
EDIT3: Reflashed Turbo Kernel 3.1 successfully using FTF and Flashtool and am back on PACrom
Click to expand...
Click to collapse
Bro.. as far as I Know.. I am Using AOKP 4.1.2 .. and their is NO Version of AOKP 4.2.2 at all.. is that a typo.. or did u try to Install a ROM from the AOKP site which was not compatible at all..
Cuz I am using Turbo Kernel 3.1.. on AOKP 4.1.2 .. go here and check out my post.. might answer some of your questions.. with screen shots..
http://forum.xda-developers.com/showthread.php?t=1852529&page=48
EDIT 1.. if you try AOKP Once.. you wont go back to any other JB ROM again.. Its just amazing.

Arc S, CM 10.1, Black screen

Tried to flash CM 10.1 & now I got blackscreen at rebooting. I can fix it by flashing old firmware, but I want CM 10.1 on my phone.
1. Bootloader unlocked
2. Rooted phone
3. flash boot.img from CM 10.1 zip file using flashtool
4. reboot -> blackscreen no reaction
Can anyone help?
Hmm, try to reflash kernel and enter cwm. In there wipe cache, dalvik and format system.
Then install the rom zip
Reboot
Sent from my Xperia Arc S using xda premium
I dont even can start recovery mode. I flash kernel by boot.ini from CM 10.1 zip, reboot, nothing happens just blackscreen.
Anyone ideas?
Shutdown phone.
Press back.
Connect it to the pc.
Check if Flashtool detects it in flashmode.
poshx said:
Tried to flash CM 10.1 & now I got blackscreen at rebooting. I can fix it by flashing old firmware, but I want CM 10.1 on my phone.
1. Bootloader unlocked
2. Rooted phone
3. flash boot.img from CM 10.1 zip file using flashtool
4. reboot -> blackscreen no reaction
Can anyone help?
Click to expand...
Click to collapse
You need to enter the Recovery and install the CM's .zip file from it.

ARC S is it back ?

after my arc s is fully dead phone i get help from @kks111 to revive it so all thanks to him
my prblm is i can't boot the phone any way
things i can trun into it :
Flash mode
Fastboot mode
thing i try it to boot my phone but not lucky :
flash GB FW
flash ICS FW
flash semc GB FW by S1tool And setool
flash kernel
unlock bootleader
relock bootledader
wipe data - cash by Fastboot mode
thing i dont try it till now :
repair it by SUSE
things i can't do it :
boot my phone
charge my phone (here good piont bcoz when i charge my phone i see kernel logo and about 5 sec the screen is lighting for about 7 sec then reboot to kernel logo and the apear many time)
boot into CWM by flash kernel (it's entre CWM for 1 sec and it's reboot to kernel logo) (this just when i put it to charger bcoz i cant boot it)
can i flash custom rom like cm10 or cm11 by fastboot mode or any thing like that's
abderrezak said:
can i flash custom rom like cm10 or cm11 by fastboot mode or any thing like that's
Click to expand...
Click to collapse
No. Flash a custom kernel for it, put the ROM.zip on your SD card and flash it in recovery. How to do it? Use the search button.
僕のLT18iから送られてきた
popthosegaskets said:
No. Flash a custom kernel for it, put the ROM.zip on your SD card and flash it in recovery. How to do it? Use the search button.
僕のLT18iから送られてきた
Click to expand...
Click to collapse
i know how to flash custom rom but my phone it's cant booting
i cant go to recovery bcoz it's showing for 1 sec and it's reboot to kernel logo (just when i charge the phone)
i dont try jb kernel , is jb kernel can fix my phone ??
abderrezak said:
i know how to flash custom rom but my phone it's cant booting
i cant go to recovery bcoz it's showing for 1 sec and it's reboot to kernel logo (just when i charge the phone)
i dont try jb kernel , is jb kernel can fix my phone ??
Click to expand...
Click to collapse
Then why did you ask if you can flash a custom ROM via fastboot? Fastboot is for flashing kernels only.
Use Flashtool to flash a stock ICS FTF file, then flash a custom JB kernel and install the custom ROM of you're choice.
僕のLT18iから送られてきた
popthosegaskets said:
Then why did you ask if you can flash a custom ROM via fastboot? Fastboot is for flashing kernels only.
Use Flashtool to flash a stock ICS FTF file, then flash a custom JB kernel and install the custom ROM of you're choice.
僕のLT18iから送られてきた
Click to expand...
Click to collapse
i will try

[Help] Sony xperia S boots in cwm automatically

Hello, i flashed cwm to my sony xperia S and then flashed a rom. Now my phone boots into cwm automaticaly. I cant boot into my new rom? what should i do?
hard reset , Camera Button & Poweroff & VOL+ , flash a Stock ROM 1.96 , fastboot DoomLord Kernel for 1.96 , Flash a custom ROM via CWM

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