Develop Bugs

[Q] How to exit boot loop

I wanted to downgrade my arc s from .62 to .42 so i can root. I flashed it and after the process finished, i disconnected the phone and it started into a boot loop. I can't do anything now. How to fix this? I tried flahsing it once more but the phone is not recognized. Im afraid that the battery will dry out and afraid that it will brick the phone because when i plug it in to the power suply, doesn't shows any signs of charging.
How can i fix this please? Thanx

Pull battery out to exit the boot loop.
And then reflash the FW using Flashtool.

if i pull it out, wont it brick my phone? Thanx

Why it should brick your device?
How do you put your SIM or microSD in without pulling out the battery?

You can fix flashing a new kernel, like DoomLord kernel v18.

Velcis Ribeiro said:
You can fix flashing a new kernel, like DoomLord kernel v18.
Click to expand...
Click to collapse
??
Simply pull out battery and reflash the rom to solve...

I fixed it. I had to flash another firmware because the one i used in the first place didn't work.
Now that im rooted, how can i update to the latest firmware? As i heard, can i do it over the air? Now im .266 and id like on .62.
Thanx

Dirrtydog said:
I fixed it. I had to flash another firmware because the one i used in the first place didn't work.
Now that im rooted, how can i update to the latest firmware? As i heard, can i do it over the air? Now im .266 and id like on .62.
Thanx
Click to expand...
Click to collapse
not sure about what happen if you update ota with your rooted fw,but you can update using flashtool,find some fw from dev section..
Sent from my LT18i

landis, the current firmware that he used should be not compatible with the kernel, some Roms not compatible, then i said to him to flash kernel, like DoomLord kernel, than fixed it...

You don't know which ROM he wants to flash, he just flashed .42 FW for root and ended up in a boot loop.
He can solve this with my instructions given in the replies, so there is no need to flash a kernel atm.
Sent from my LT18i using xda premium
rashid.fairus said:
not sure about what happen if you update ota with your rooted fw,but you can update using flashtool,find some fw from dev section..
Click to expand...
Click to collapse
If you haven't modded some system apps and your BL is locked, OTA should work as well.
Sent from my LT18i using xda premium

Thanx everyone for your replies. I managed to get out of the boot loop but i am still very confused what am i doing wrong because cyanogenmod doest work. I unlocked the boot loader, rooted, instaled clockwork mod, wiped the datas and caches, instaled from sd card and i always get stuck on that blue cyanogen logo while alternating witht the green press android to begin screen, 4 out of 5 times with unresponsive touchscreen. On time it managed to get to homescreen but briefly because rapidly in changed again to that blue screen loading and after a couple times i saw the cyanogen lock screen but without being able to do anything while looping in that booting or loading sequence with that blue logo screen. Im tired and confused of tryin this over an over again, and now im on .266 firmware and i guess because i have unlocked the bootloader i cant update to .42 ota and i cant find another .42 firmware for arc s that wouldnt get stuck after flashing. Any sugestions ? Thanx guys

[Q] Arc s won't enter flashmode, please help!

Hello, I recently rooted my Sony Ericsson Xperia Arc S, everything was working fine.
So I decided to install a custom ROM ( Jelly Sandwich )
but after the installation, my device is stuck on the Sony logo, I can't even access flashmode to flash it back. Please help! Thank you.

I've got the exact same problem!

You are stuck in bootloop you either have to reflash the stock rom with flashtools or if you have open bootloader using fastboot install custom kernel.
I have never managed to get this room working on my phone without using custom kernel.
I no longer have this Rom but use pureness Rom on stock kernel without issues.
Sent from my LT18i using xda premium

Xraze0 said:
Hello, I recently rooted my Sony Ericsson Xperia Arc S, everything was working fine.
So I decided to install a custom ROM ( Jelly Sandwich )
but after the installation, my device is stuck on the Sony logo, I can't even access flashmode to flash it back. Please help! Thank you.
Click to expand...
Click to collapse
Open flashtool, put there original firmware http://forum.android.com.pl/f308/oprogramowanie-dla-sony-ericsson-xperiaa-arc-s-147007/
then pull out battery, put it back, then start flashtool and flash this original firmware. For me it has allways worked, every time got back to life, but root is gone, so new rooting have to too

[Q] NEED urgent help. Stuck at Sony Ericsson Logo

Hi, I root my xperia play (verizon version) just fine and has been using custom ROM for a while and it all works great. but then I wanted to try a different ROM and so I install NexPlay ROM via recovery menu. The installation process was fine and it went through but when the phone is rebooted it just stucks at the sony ericssons logo and won't go anywhere, I can't turn off the phone or anything and i can't get back into recovery mode. Please help. I need this back to working fast!

Flash stock ftf with flashtool or use pc companion to restore phone
Sent from my R800i using xda app-developers app

PC companion don't work for me. It keeps saying it can't find any updates. and I can't find a working link for flashtool. all links i found are broken...

CypherX418 said:
PC companion don't work for me. It keeps saying it can't find any updates. and I can't find a working link for flashtool. all links i found are broken...
Click to expand...
Click to collapse
If you unlocked your bootloader, use emma instead of pc companion
http://developer.sonymobile.com/services/flash-tool/how-to-download-and-install-the-flash-tool/
Flashtool is at flashtool.net
For ftf file you'll have to search, i have r800i model and i don't know wich ftf is for your r800x
Sent from my R800i using xda app-developers app

Stock ftf for r800x can be found here http://www.xperiagamer.com/Stock-Roms/233-se-stock-firmware-for-flashtool.html
If you're on windows 8 you might need to manually install fastboot drivers.

CypherX418 said:
Hi, I root my xperia play (verizon version) just fine and has been using custom ROM for a while and it all works great. but then I wanted to try a different ROM and so I install NexPlay ROM via recovery menu. The installation process was fine and it went through but when the phone is rebooted it just stucks at the sony ericssons logo and won't go anywhere, I can't turn off the phone or anything and i can't get back into recovery mode. Please help. I need this back to working fast!
Click to expand...
Click to collapse
For a better support you should tell us which kernel are you using, and which ROM you were using before flashing NeXPLay.
If you just made the mistake of installing NeXPay (ICs ROM) on a GB kernel, then you don't need to reset everything with flashtool.

thanks but i just flashed my verizon rom with flashtool and that seems to get me back...
now which custom firmware/rom is the best for R800x?

CypherX418 said:
thanks but i just flashed my verizon rom with flashtool and that seems to get me back...
now which custom firmware/rom is the best for R800x?
Click to expand...
Click to collapse
Depends on how you use your phone. If you are a gamer then you should try a LuPuS kernel and a Gingerbread ROM but if you don't care about gaming then you can try a ICs ROM and which kernel you prefer.
If you need some in choosing one of the many ICs/GB ROMs, just ask

[Help] Recovering from Soft-Brick

Hey guys,
I have XZL C6503 and was on eXistenZ v4 with unlocked bootloader and a few days ago my phone started to reboot randomly, so I decided to flash stock rom with flash tool.
But since then Im stuck in a bootloop.
I have read this Guide but I didnt managed it to work again.
I have no problems to go into flashmode/fastboot mode and I already tried out different kernels and managed to open CWM on my phone but no matter which rom I try to install barely the installation has started my phone turns off.
I flashed with flash tool:
C6503_10.3.1.A.2.67_Global-LTE.ftf
C6503_10.3.A.0.423_MEA.ftf
C6503_10.5.A.0.230_BR.ftf
Flashtool did not produce any error, but my phone wont go further than the SONY logo.
I also tried the tool emma, but it was just as with flashtool.
When I try Sony PC Companion it produces some error, same with SEUS, probably cause of the unlocked bootloader.
Do you know any way to help me out?
I just need to relock my bootloader to send it back to sony.
Backup TA need unfortunately a running system.
Many thanks in advance for your help!

Well... When im having a bootloop, i usually flash the stock ftf, then wipe ALL.... It works for me

hm I tried it serveral times, but didnt succeed
I read some tip, which suggests to flash a rom via fastboot, but I need a rom that comes with a system.img
Do you know where to get such file?

mo3mo said:
hm I tried it serveral times, but didnt succeed
I read some tip, which suggests to flash a rom via fastboot, but I need a rom that comes with a system.img
Do you know where to get such file?
Click to expand...
Click to collapse
Well, im flashing c6506 ftf file on my c6502...
Search it in this forum

Ok I managed it to install Cyanogenmod and relocked bootloader.
It's on the way to sony :laugh:

I bricked my ZL - Black screen after Logo as result of flashing ftf

Hey friends,
I finally managed to brick my device (c6503).
Had it on resurrectionremix and wanted to go to lineage. After that didnt boot i tried some older CM12/11 builds and finally lost my recovery whith flashing an aosp rom...
I decided to go on stock using flashtool, and now here I am, looking as stupid as it gets
Tried various ftf's using flashtool, always resulting an a black screen after the sony logo. now i dont know what to do next.
Your Help is much appreciated
Sterussus

I was able to find a solution myself. I flashed some Kernel which included cwm via flashtool. I was able to boot into this recovery. Then I used ADB sideload to install CM14.1 unofficial and voilà!
I hope this helps anyone having a similar issue.
Regards!

Were you able to return to ROM STOCK ??
I'd like that, but unfortunately I could not, even flashing a custom recovery on it.
I would like to go back to ROM STOCK, do you know any tips?

feliperock3r said:
Were you able to return to ROM STOCK ??
I'd like that, but unfortunately I could not, even flashing a custom recovery on it.
I would like to go back to ROM STOCK, do you know any tips?
Click to expand...
Click to collapse
I have a similar question, I appreciate your help if you can.
Now, I have 7.1.1 Nougat from XOSP , and it works well. I'm trying to restore the official kernel from Sony, using Sony's Emma, to make some tests. When I flash the package from Emma onto C6503, it won't turn on, just show Sony Xperia logo and then black screen. Do I need to flash other packages ? I thought the Sony's official kernel has all things to put it back to near original form.
Thanks!

I have Installed RR-N 20160312 then revert to stock LL, then Only Sony/Xperia Logo. Then I ask some question, they say Flash Kk, successfully flash the Kk build. But unfortunately, My Internal Storage Cannot Read. I think that was the Problem why flashing LL just make it only Sony Logo, No Bootamation. Still finding a workaround to fix this
Sent from my Xperia ZL using XDA Labs

I was not able to return to stock Rom. In fact, I tried to revert to stock today by simply flashing it with flashtool but got the same "black screen after Xperia logo" issue as last time. I would like to return to stock in the future, but for now I dont know how and I dont think there is anyone dedicaded to fix this issue right now.
sterussus

sterussus said:
I was able to find a solution myself. I flashed some Kernel which included cwm via flashtool. I was able to boot into this recovery. Then I used ADB sideload to install CM14.1 unofficial and voilà!
I hope this helps anyone having a similar issue.
Regards!
Click to expand...
Click to collapse
Can u pls link me to the Kernel? Same problem atm...

Same issue here.
Tried locking back bootloader, flash ftf via flashtool, black screen.
Tried flashing directly via Emma, black screen.
Running out of ideas...

Kran007 said:
I have Installed RR-N 20160312 then revert to stock LL, then Only Sony/Xperia Logo. Then I ask some question, they say Flash Kk, successfully flash the Kk build. But unfortunately, My Internal Storage Cannot Read. I think that was the Problem why flashing LL just make it only Sony Logo, No Bootamation. Still finding a workaround to fix this
Sent from my Xperia ZL using XDA Labs
Click to expand...
Click to collapse
Well, just got back to Stock 5.1.1.
Followed the idea posted by Kran007:
-Coming back from CM14, used EMMA FlashTool, that resulted in the famous black screen
-Flashed stock Kit Kat FTF using FlashTool (not EMMA) with unlocked bootloader (should work perfectly fine for locked bootloaders as well) and started the phone correctly.
-When back to FlashTool and locked the bootloader, just in case.
-Used PC Companion to update to the latest build available, only works with locked bootloader i think
It's not the best solution, it isn't the fastest either, but it works!!!
Hope this can help anyone...

Just flash stock 4.4 kk firmware using flashtool. Yes, it needs a lot of work to go back to stock LP, root and have recovery but it is the best way when you flash custom rom with nougat and above. I don't face again the problem of not accessing internal storage ☺
Sent from my Sony Xperia ZL using XDA Labs