Develop Bugs

[HELP] computers arent recognizing the device after bootloader unlock

i have just unlocked the device bootloader and it works, but the wired thing is that i cant make the device appear on the computer from the usb connection.
what can i do?

More details wouldn't go a miss.

i cant understand why it happend, and i couldnt reach the sdcard without the phone (no SD available) so i used an old phone with the same connection as the arc and reached the sd card threw him to put the files for cm7 flashing.
another questions if anyone will know - what are the pros and the cons of CM7 vs SE stock rom?

Hi!
I haved the same issue. I think we deleted some system app.
I suggest to flash the stock ftf with flashtool first. And WIPE USER DATA.
After then, the CM7 boot.img and the rom once more. And WIPE USER DATA.
This way is solved the problem to me.
bukest
ps.: of course, you will lose all your data. but I only found this way to solved that problem.

damn it! huge problem!
i tried to flash the lt18i ftf file from the CM7 thread and i got stuck on the SE boot screen, boot loop.
so i tried to flash again the kernal and install the updated files from the sd and it makes the phone stuck on the free xperia project logo.
what to do?

FireEye said:
damn it! huge problem!
i tried to flash the lt18i ftf file from the CM7 thread and i got stuck on the SE boot screen, boot loop.
so i tried to flash again the kernal and install the updated files from the sd and it makes the phone stuck on the free xperia project logo.
what to do?
Click to expand...
Click to collapse
Bro, you doing the same things like me, lol. DD
1. Flash lt18i ftf.
2. Flash Doomlord .42 (v13) kernel.
Now, you have .42 with root. If you like it, jump to 6.
If you don't like it:
3. Flash cm7 boot.img
4. Update CM7 from CWM
5. Update Gapps from CWM
Now you have CM7.1 (FXP45)
6. Enjoy.

i did 3-5 (im sure the first two are not necessary) and its still stuck on the free xperia project logo

FireEye said:
i did 3-5 (im sure the first two are not necessary) and its still stuck on the free xperia project logo
Click to expand...
Click to collapse
Okay. The first 2 solved the problem for me. I'm still on .42(LT18i) with Doomlord v13 kernel. Try to take this to have a working phone first.
But if you found another way, don't hesitate to share the results.
Best regards,
bukest

yea i tried and its working.(no bootloop)
thank you
btw - feels alot more faster! i have to test it XD

[Q] Arc Not Booting :( [RESOLVED]

OK, I Know I did a very stupid thing but I flashed the Nordik Version of the Official ICS Rom for Arc S on My Arc.
Now The problem is when it was flashing, the flash stopped at a certain point. Here is the message
14/002/2012 20:02:24 - INFO - Flashing userdata.sin
14/002/2012 20:02:24 - ERROR - Error flashing. Aborted
14/002/2012 20:02:24 - INFO - Now unplug the device and power it on
Click to expand...
Click to collapse
But then After I Rebooted, It showed the sony logo for a second and then some logo of the mobile with a caution symbol (Yellow Exclamatory Mark). And thats it, after a couple of seconds, it switched off.
I repeated the process and the same thing.
Scared Then I Flashed a Doom Kernel and did a factory reset. While the factory reset, it said that it could not open \data :|
i tried formating data many times but it could not mount it saying different file system.
So I flashed a matching Custom ROM and It does not work, Nether is any app installing nor any file getting saved
Please Help!
And Anyway to solve the /userdata filesystem problem?

If flashtool stopped then try re-downloading the file in case it was corrupt, and try to re-flash. If that's not successful download a stock 2.3.4. ftf and flash that.

FTF Wasnt corrupt :\
Now I Have tried flashing the 2.3.4 Android aswell BB 48
A Very old one which I downloaded around december time to root my Arc.
That doesnt even go past the SE Logo
The Custom ROM atleast booted.
My Guess is that the userdata partition has a different filesystem than the one it can read :\

Think it's to do with flashtool being unable to handle ICS data parameters. Binary has posted some type of workaround till he updates it.

Ok, Will check them out.
Thanks!
In his post?

think so, it's mentioned in the thread.

Nope
It stops while flashing the system.sin file

Anyway to solve the /userdata filesystem problem?

Not yet, apparently. I use cm9 so don't really know, though I think there's a cwm flashable ics stock.
sinkster©

No Use of that

Try connecting in fastboot, and use the erase or format commands, e.g. 'fastboot erase boot' or erase system, in case it's a system partition issue
Then try a kernel and rom.
sinkster©

OK, Apparently the problem was that I was using an old version of the flashtool (0.5.8)
I downloaded the latest 0.6.9.1 and followed the 3 step flasshing process
Enjoying ICS on my LT15i

SS4Serebii said:
OK, Apparently the problem was that I was using an old version of the flashtool (0.5.8)
I downloaded the latest 0.6.9.1 and followed the 3 step flasshing process
Enjoying ICS on my LT15i
Click to expand...
Click to collapse
Hi ,
I have ARC S with unlocked boot loader.
I can install any kernel on the phone via fast boot or by using the flashtool latest version.Right now I have installe dthe lupus kernel V16 and I can boot to the CWM and I hae installed the latest version of Ultimate Xperia HD by jader , I can install and after installation if i reboot the phone is stuck at booting screen only. I have tried various kernels and various roms all are giving the same issue.
I can install the ROM but cannot boot it gets stuck at booting screen. I have formatted the partition's via fastboot and by using the CWM still the issue persists.Please help.

Flash the stock firmware ftf file, then try again, or flash a different kernel.
Sent from my Xperia X10 using xda premium

I have tried the same.and it stops and doesn't flash the Rom loading Kernel is very easy, can install Rom too but after this
When I boot it just sits at boot screen
Sent from my iris405 using Tapatalk 2

santsplen said:
I have tried the same.and it stops and doesn't flash the Rom loading Kernel is very easy, can install Rom too but after this
When I boot it just sits at boot screen
Sent from my iris405 using Tapatalk 2
Click to expand...
Click to collapse
Hi guys , Please help me as I have tried multiple kernels and roma all of them exhibit same issue,
Booting to CWM using the CWM inbuilt into the kernel takes a long time as well as once a rom is installed via CWM it completes installation and then comes to the boot screen and it sits at the boooting screena and does not get past it.

How are we gonna help if you don't state ROM and kernel and what exactly you did.
Sent from my Xperia X10 using xda premium

I have installed lupus v 16 kernel , with xperia ultimate hd rom and xperia blue rom both are having same issue.I can boot to cwm and install the rom but after you give reboot after the rom installation it just sits at the boot animation screen .
One thing I noticed is that booting to cwm takes almost a minute after turning on the phone , is this normal ?.
Sent from my iris405 using Tapatalk 2

Did you wipe everything before instaling, and have you tried reflashing th kernel
Sent from my X10i using xda premium

I have wiped system and data ,cache,dalvik cache and have even formatted the partitions from fastboot using fastboot commands ,have even tried rush kernel and u am facing same issue .Please help.
Sent from my iris405 using Tapatalk 2

HELP! My Xperia Arc is stuck at CM9 startup screen?

Hey guys,
I was flashing CM9 Nightly onto my xperia arc and it just got stuck at loading with the CM9 guy and the blue matrix animation screen?
I followed this tutorial: http://www.youtube.com/watch?v=bdxtOMS4jr0
I did flashed it fresh from rooting and unlocking bootloader since this is my first time doing this.
I started with flashing an older android version, then I rooted it and OTA update to later version (maintaining root)...then i unlocked bootloader and followed the tutorial i posted above. All was well until it rebooted.
Any help appreciated, thanks.

Try to wipe your phone in Clockworkmod Recovery and delete everything. Then.. Install CM9 again.
Don't forget to flash the Cyanogenmod kernel also through flashtool..

Have you tried flashing a stock .ftf file using Flashtool?

Have you wiped everything? No. Have you flashed FXP kernel? No, you have locked bootloader xD

Hey guys, I fixed it.
I took my battery out, rebooted and went to the CM9 menu (press volume down button a few times while on xperia free screen)...then I reinstalled the zip file and before rebooting again; I wiped out cache and factory reset (they are options below the reboot option). It rebooted and started up fine.

Xperia ARC stuck in boot loop

Hello Everyone.
I'm very new to rooting so I apologize in advance for any newb-ness. I've tried looking at all the threads that have boot loops and from what I can tell, my situation does not match any of those people. I decided that I wanted to install Jelly Sandwich onto my Sony Ericsson Xperia Arc (LT15i) and I went about it as follows:
-Rooted my phone using Doomlord v4
-Installed CWM Recovery using X-Parts
-Booted into recovery and created a backup of my stock rom
-Put Jelly Sandwich files on my SD card
-Booted into recovery again and did the wipe data/factory reset option, wipe cache partition, advanced/wipe Delvik cache
-Clicked install zip from SD card and then followed the Jelly Sandwich installation instructions. At this stage, the installation went smoothly and it said that it had been done successfully.
-Tried to reboot and got stuck in the reboot loop
-Following the advice from the Jelly Sandwich thread, I used flashtool to flash stock Sony ICS firmware - 4.1.B.0.587 (http://forum.xda-developers.com/showthread.php?t=1836993)
-At this stage, I'm still stuck in the reboot loop and I can't access CWM recovery (used to do it by clicking on vol. down button during startup, but this doesn't work anymore)
My boot loader is still locked now. I tried to unlock it following these instructions: http://forum.xda-developers.com/showthread.php?t=1034087 but my IMEI no. was 15 digits instead of 14 so the Sony website didnt send me a code.
I'm kind of at a loss as to what I should try next. Any advice is welcome

First question: bootloop or bootlogo(i think you mean this) ?
you have to wipe everything for installing jelly sandwich with a locked bootloader
flash .587, root the device, and install cwm with flashtool (you can also use x-parts)
report when it's working

Ok, progress. I was indeed meant to be referring to bootlogo and it turned out that flashing to the stock firmware was the fix needed. The reason it didn't work before is that I had selected the option to exclude the kernel when flashing the firmware, based on the instructions on the jelly sandwich page. Once I stopped clicking on this option, it all worked perfectly and I'm now on stock ICS. I'm just installing more ADB drivers and getting ready to go for round 2 of rooting. Let's hope that things go smoother this time round.

Here's an excellent thread with good references: - http://forum.xda-developers.com/showthread.php?t=1653188
(There's a link there that should help with the unlocking of the bootloader too.)
Here's one of the links on the above thread titled "Root 4.0.4 ics {Arc lt15i} LOCKED BOOTLOADERS": - http://forum.xda-developers.com/showthread.php?t=1683189
Good luck

Evanfoo said:
Hello Everyone.
I'm very new to rooting so I apologize in advance for any newb-ness. I've tried looking at all the threads that have boot loops and from what I can tell, my situation does not match any of those people. I decided that I wanted to install Jelly Sandwich onto my Sony Ericsson Xperia Arc (LT15i) and I went about it as follows:
-Rooted my phone using Doomlord v4
-Installed CWM Recovery using X-Parts
-Booted into recovery and created a backup of my stock rom
-Put Jelly Sandwich files on my SD card
-Booted into recovery again and did the wipe data/factory reset option, wipe cache partition, advanced/wipe Delvik cache
-Clicked install zip from SD card and then followed the Jelly Sandwich installation instructions. At this stage, the installation went smoothly and it said that it had been done successfully.
-Tried to reboot and got stuck in the reboot loop
-Following the advice from the Jelly Sandwich thread, I used flashtool to flash stock Sony ICS firmware - 4.1.B.0.587 (http://forum.xda-developers.com/showthread.php?t=1836993)
-At this stage, I'm still stuck in the reboot loop and I can't access CWM recovery (used to do it by clicking on vol. down button during startup, but this doesn't work anymore)
My boot loader is still locked now. I tried to unlock it following these instructions: http://forum.xda-developers.com/showthread.php?t=1034087 but my IMEI no. was 15 digits instead of 14 so the Sony website didnt send me a code.
I'm kind of at a loss as to what I should try next. Any advice is welcome
Click to expand...
Click to collapse
I have already tried installing this ROM (JS 6.0/6.1) five times already and all I get is bootlogo and nothing else.
Does anyone have suggestions how to flash JS on locked bootloader. I have already tried all the instructions given on the thread

Stanleykyn said:
I have already tried installing this ROM (JS 6.0/6.1) five times already and all I get is bootlogo and nothing else.
Does anyone have suggestions how to flash JS on locked bootloader. I have already tried all the instructions given on the thread
Click to expand...
Click to collapse
you can try mount system then format system(but careful not to accidentally click reboot recovery)
That's how I did to finally install the 6.2 over my locked bootloader LT18i.

[Q] LT15i bricked: how to get into CWM??

Good morning,
Yesterday, I tried to unlock and root my friend's Xperia Arc (LT15i). Although it was running FW .62, I did manage to unlock the bootloader and root the phone. I installed CWM, emptied the phone (I thought) and installed the Xperia Ultimate HD ROM.
Unfortunately, I think I forgot a detail. I wiped data/factory reset, cache and Dalvik, but after the installation of the ROM completed succesfully, rebooting the phone keeps it hanging at the Sony Ericsson logo. It seems to be hanging right at that moment, because the problem is that when I then press the Vol.Down button, I'm not getting back into CWM.
I tried to use the "Unbrick" option to flash an original .ftf file via Flashtool, but then I get the "Error in processHeader: 1 Incorrect function".
Can anybody give me a clue on how to:
a) get into CWM
or
b) restore the phone so I can try again
Thanks a lot in advance!
PS: is there a way to get in the bootloader and go to CWM from there? It all seems to be so much more difficult then on my own Nexus S

stalensnuitje said:
Good morning,
Yesterday, I tried to unlock and root my friend's Xperia Arc (LT15i). Although it was running FW .62, I did manage to unlock the bootloader and root the phone. I installed CWM, emptied the phone (I thought) and installed the Xperia Ultimate HD ROM.
Unfortunately, I think I forgot a detail. I wiped data/factory reset, cache and Dalvik, but after the installation of the ROM completed succesfully, rebooting the phone keeps it hanging at the Sony Ericsson logo. It seems to be hanging right at that moment, because the problem is that when I then press the Vol.Down button, I'm not getting back into CWM.
I tried to use the "Unbrick" option to flash an original .ftf file via Flashtool, but then I get the "Error in processHeader: 1 Incorrect function".
Can anybody give me a clue on how to:
a) get into CWM
or
b) restore the phone so I can try again
Thanks a lot in advance!
PS: is there a way to get in the bootloader and go to CWM from there? It all seems to be so much more difficult then on my own Nexus S
Click to expand...
Click to collapse
FW .62 is gingerbread ROM and UHD is ICS ROM.I think you forgot to install ICS kernel. Use the suggested lupus kernel for UHD or any other ICS kernel in Fastboot mod or using flash tool then you can boot into ICS.

shoeseat said:
FW .62 is gingerbread ROM and UHD is ICS ROM.I think you forgot to install ICS kernel. Use the suggested lupus kernel for UHD or any other ICS kernel in Fastboot mod or using flash tool then you can boot into ICS.
Click to expand...
Click to collapse
Oh crap, I didn't even think about that I figured it would be implemented in the ROM. Thanks a lot, I'll try that right away when I get home! :good:

stalensnuitje said:
Oh crap, I didn't even think about that I figured it would be implemented in the ROM. Thanks a lot, I'll try that right away when I get home! :good:
Click to expand...
Click to collapse
Flashing ROM doesn't flash kernel.You need to flash kernel if you are flashing different version of ROM like Gb,ICS,JB. Flash kernel,then go to CWM and flash ROM zip.