Develop Bugs

Stuck in boot loop since flashing ROM

Hi
Really need some advice here. After (successfully) flashing ROMs on my HTC Desire and a couple of LG / Samsung units, I decided I was fed up with the stock ICS ROM on my Arc S so found one I liked called Jelly Sandwich v6.2.
So, I rooted, no probs, unlocked the bootloader, no probs. Installed CWM and did a nandroid backup to my SD card. So far, so good.
I then used CWM to install the JS ROM and the phone is now stuck on the SONY screen, presumably the boot is looping and I have to pull the battery to shut it back down.
I can't get it into recovery, tried every combination of buttons I can think of. I can get it into fastboot by holding the menu button and inserting the USB cable and if I do a CMD line fastboot.exe -i 0x0fce getvar version I get the expected response, but if I try adb shell I get 'device not found'.
I am rubbish at best with command line stuff but I think this is my only way forward.
Have tried flashtool and I get the phone into Flashmode but it finishes with an error.... 04/048/2012 00:48:51 - INFO - Ending flash session
04/048/2012 00:48:51 - ERROR - ERR_SEVERITY="MAJOR";ERR_CLASS="SECURITY_CLASS";ERR_DYNAMIC="SIN header verification failed".
Have also tried SuS and that fails with an error along the lines of "The phone has got modified software that cannot be upgraded" or similar.
Anyone tell me specifically what to try? and exactly what I need to be doing with commands etc.
Would appreciate any help no matter how small

Use the Flashtool instead of SEUS.

XperienceD said:
Use the Flashtool instead of SEUS.
Click to expand...
Click to collapse
he's saying he used flashtool but nothings working..
Sent from my AT100 using xda app-developers app

SORTED!!!
ok I sorted this eventually.
Tried everything I could think of and more besides (went through 100s of threads on here and elsewhere).
Eventually I went to wontanserver.com after seeing it recommended on a thread but it didn't work (forget the error but basically it wouldn't flash).
Then the battery died, left it on charge overnight but it was still dead so really thought that it was a hard brick.
Anyway, this morning, still very blearey eyed, I booted it into fastboot with usb connected and then the wotan tool didn't even recognise the phone, so used Flashtool to connect and the only command that would work was "Rebbot into fastboot mode (via Fastboot)"
Did that and the wotan flash tool started working, unpacking and flashing merrily along and a few minutes later the phone is back from the brink of almost certain death.
Don't know if my blurb will help anyone else, but it at least shows you should never give up :victory:

yorkiepudd said:
ok I sorted this eventually.
Tried everything I could think of and more besides (went through 100s of threads on here and elsewhere).
Eventually I went to wontanserver.com after seeing it recommended on a thread but it didn't work (forget the error but basically it wouldn't flash).
Then the battery died, left it on charge overnight but it was still dead so really thought that it was a hard brick.
Anyway, this morning, still very blearey eyed, I booted it into fastboot with usb connected and then the wotan tool didn't even recognise the phone, so used Flashtool to connect and the only command that would work was "Rebbot into fastboot mode (via Fastboot)"
Did that and the wotan flash tool started working, unpacking and flashing merrily along and a few minutes later the phone is back from the brink of almost certain death.
Don't know if my blurb will help anyone else, but it at least shows you should never give up :victory:
Click to expand...
Click to collapse
I have the exact same problem but I don't know how to solve this. Please help me.

lance26 said:
I have the exact same problem but I don't know how to solve this. Please help me.
Click to expand...
Click to collapse
Try reading the post you've quoted.
Sent from myushi

have you tried to flash a specif kernel for this rom or just redownloaded the rom? maybe there was a problem with the download

Since these problems I have installed both CynogenMod 10 and UltimateHD without any problems what so ever.

Xperia Play R800at stuck in boot loop (never rooted)

Hi,
This is my brother's phone, and he tells me he went to use it the other day and the phone was off. When he turned it on it would show the "Sony Ericsson" screen, then the AT&T logo and back to the Sony screen, and the loop continues. The only way to make it stop is to remove the battery.
His phone is stock and has never been rooted or unlocked. I tried flashtools but can't use it because the phone has a locked boot loader. I tried to unlock it through the Sony mobile site, but can't because it asks to go to the menu of the phone which I cannot do for obvious reasons to verify if it is unlockable. I tried to do so anyway, but the instructions say that you press the "search" key while connecting it to the computer and a BLUE LED would turn on, this phone turns on Orange. At this point I am stuck and don't have a clue what can be done now.
What I really want is to just get the phone working, it doesn't matter if it goes back to stock or if it will have a custom firmware, just to get it working again.
I appreciate if someone points me to the right direction on what I can do to restore the phone. Any tutorials or instructions related to this specific issue. I have found multiple threads similar to this but all involved previously rooted/unlocked phones. Also, I mostly use Linux so any instructions for Linux users would be great.
Thanks

You don't. Need to unlock it top use flash tool. Download an ftf for the phone. And choose flash mode in flash tool. Then choose the ftf you want to flash. And it will tell you to unplug the phone and plug it back in while holding the back button. A green led should turn on then it should flash the data and reboot and it will be back to stock
Sent from my Xperia Play (r800x)

As above, Flashtool doesn't require an unlocked bootloader. A link to the stock R800at firmwire here: http://forum.xda-developers.com/showthread.php?t=1589399

Thanks! This worked perfectly, I mistakenly downloaded what Sony calls "Flashtool" on the Sony mobile site (named "Emma" when installed).
Any idea what could have happened to the phone in the first place to render it unbootable?
Again thanks for your help!

Could be the cache/dalvik partitions messing up. Usually when I get the same problem I just pop into recovery and clear these, but that does require root.
Quite strange for it to happen on a stock, non-rooted device though. Is the device working now?

KiraYahiroz said:
Could be the cache/dalvik partitions messing up. Usually when I get the same problem I just pop into recovery and clear these, but that does require root.
Quite strange for it to happen on a stock, non-rooted device though. Is the device working now?
Click to expand...
Click to collapse
You don't need root to have recovery, unlocked bootloader is enough. Just saying
He just written above you that it's working perfectly now
Sent from my R800i using xda premium

olokos said:
He just written above you that it's working perfectly now
Click to expand...
Click to collapse
So he did... that's what I get from reading too fast .
Well, for me who had "bootlocker unlock status: no", I had to do it via root instead. Got to love X-Parts!

what do i use when i download the ftf file?
what do i use when i download the ftf file? im confused he said he download the file from sony called emma but yet he said he did by mistake. help please i have exactly the same program

[Q] [SOLVED] Tried installing CM 10.1.0 RC5 Odin now the screens just black

Well, after a series of rooting and trying to get CWM recovery on my Xperia ZL and getting SuperSU I decided it was time to update to CM 10.1.0 RC5 Odin I didn't unlock my bootloader cause I don't know how, to my knowledge of a video I saw online if your phone says that you cannot unlock your bootloader than you can't. So I just thought it was okay to install CM 10.1.0 and did so, now my phone is stuck in infinite reboot without any sort of logo and just stuck at a black screen. I was wondering if any of you guys can help me solve this :\ thanks!

alainmona said:
Well, after a series of rooting and trying to get CWM recovery on my Xperia ZL and getting SuperSU I decided it was time to update to CM 10.1.0 RC5 Odin I didn't unlock my bootloader cause I don't know how, to my knowledge of a video I saw online if your phone says that you cannot unlock your bootloader than you can't. So I just thought it was okay to install CM 10.1.0 and did so, now my phone is stuck in infinite reboot without any sort of logo and just stuck at a black screen. I was wondering if any of you guys can help me solve this :\ thanks!
Click to expand...
Click to collapse
If you can still access CWM Recovery you can try to restore a backup of your old system. Otherwise you will have to flash an FTF using Flashtools.
(You can find the FTF that belongs to your phone here: http://forum.xda-developers.com/forumdisplay.php?f=2094).
If it is your first time using Flashtools you can search here in xda for guides, there are many that explain how to flash a FTF
And, as I said in another post before, every rom that needs to flash a Kernel (CM10.1, PAC, ReVolt, etc) you must have an unlocked bootloader unless it's tagged as a stock based rom.

xkeita said:
If you can still access CWM Recovery you can try to restore a backup of your old system. Otherwise you will have to flash an FTF using Flashtools.
(You can find the FTF that belongs to your phone here: http://forum.xda-developers.com/forumdisplay.php?f=2094).
If it is your first time using Flashtools you can search here in xda for guides, there are many that explain how to flash a FTF
And, as I said in another post before, every rom that needs to flash a Kernel (CM10.1, PAC, ReVolt, etc) you must have an unlocked bootloader unless it's tagged as a stock based rom.
Click to expand...
Click to collapse
I love you so much man, thanks a lot. I'm going to try out a couple of methods to at least restore the phone to 4.1.2. Do you have any advice on how to unlock the bootloader or any roms that doesn't require an unlocked bootloader?
Edit: By the way, I can't access CWM I wish I could, but I tried pressing the hard OFF button on the back of the phone and I tried pressing every button as well, it doesn't connect to my laptop or computer at all. Any way I can connect it to reset it?

alainmona said:
I love you so much man, thanks a lot. I'm going to try out a couple of methods to at least restore the phone to 4.1.2. Do you have any advice on how to unlock the bootloader or any roms that doesn't require an unlocked bootloader?
Click to expand...
Click to collapse
Actually all Stock Roms (Found here: http://forum.xda-developers.com/forumdisplay.php?f=2094) don't require an unlocked bootloader, but if you want to unlock it so you can install Custom Roms (Found here: http://forum.xda-developers.com/forumdisplay.php?f=2095) that are not Stock based here is a very nice Tutorial about how to do the Unlock Bootloader procedure: http://forum.xda-developers.com/showthread.php?t=2153261
alainmona said:
Edit: By the way, I can't access CWM I wish I could, but I tried pressing the hard OFF button on the back of the phone and I tried pressing every button as well, it doesn't connect to my laptop or computer at all. Any way I can connect it to reset it?
Click to expand...
Click to collapse
It doesn't matter, Flashtool will work with the phone in any condition

xkeita said:
Actually all Stock Roms (Found here: http://forum.xda-developers.com/forumdisplay.php?f=2094) don't require an unlocked bootloader, but if you want to unlock it so you can install Custom Roms (Found here: http://forum.xda-developers.com/forumdisplay.php?f=2095) that are not Stock based here is a very nice Tutorial about how to do the Unlock Bootloader procedure: http://forum.xda-developers.com/showthread.php?t=2153261
It doesn't matter, Flashtool will work with the phone in any condition
Click to expand...
Click to collapse
You are the boss man, thanks a bunch I was so worried about my phone. I just got it and was about to unlock it for a company that's super cheaper than all the other phone companies. I'm currently flashbooting it so I can restore it. I will take a peak at the bootloader unlocking procedure and I'm going to thank you again for your help.
Edit: My phone is being recognized in Flashmode only and randomly disconnects and reconnects. I hope I can flash it when the .zip is done downloading. I'll keep you posted.
Edit 2: I'm stuck on FlashTools "Reading Device Information" :\ now I'm stuck at 7% of Flashing Data and it hasn't moved

alainmona said:
You are the boss man, thanks a bunch I was so worried about my phone. I just got it and was about to unlock it for a company that's super cheaper than all the other phone companies. I'm currently flashbooting it so I can restore it. I will take a peak at the bootloader unlocking procedure and I'm going to thank you again for your help.
Edit: My phone is being recognized in Flashmode only and randomly disconnects and reconnects. I hope I can flash it when the .zip is done downloading. I'll keep you posted.
Edit 2: I'm stuck on FlashTools "Reading Device Information" :\ now I'm stuck at 7% of Flashing Data and it hasn't moved
Click to expand...
Click to collapse
Are you flashing a whole .FTF? (The one for my model is about 700+MB)

xkeita said:
Are you flashing a whole .FTF? (The one for my model is about 700+MB)
Click to expand...
Click to collapse
I have the Xperia ZL C6506 I'm using this method(http://forum.xda-developers.com/showthread.php?t=2299092) for my model and it keeps getting stuck at 7% instantly, I don't understand cause I follow his procedure and it won't flash properly still.

alainmona said:
I have the Xperia ZL C6506 I'm using this method(http://forum.xda-developers.com/showthread.php?t=2299092) for my model and it keeps getting stuck at 7% instantly, I don't understand cause I follow his procedure and it won't flash properly still.
Click to expand...
Click to collapse
I would recommend you to flash this FTF first because you need to recover your android system first so you can move files in and out, install recoveries, etc. After doing so you can continue with that rom

xkeita said:
I would recommend you to flash this FTF first because you need to recover your android system first so you can move files in and out, install recoveries, etc. After doing so you can continue with that rom
Click to expand...
Click to collapse
Thank you so much man, I appreciate your help man! I'm going to try this then repost in a bit.
Edit: I ended up finishing the download, now when I try flashing my phone, it just disconnects randomly as well it started flashing but it's stuck at 0% :\ I'll give it some time but if it doesn't move I don't know what else to do

alainmona said:
Thank you so much man, I appreciate your help man! I'm going to try this then repost in a bit.
Edit: I ended up finishing the download, now when I try flashing my phone, it just disconnects randomly as well it started flashing but it's stuck at 0% :\ I'll give it some time but if it doesn't move I don't know what else to do
Click to expand...
Click to collapse
Do a hard reset on it (using the button on the back), don't turn it on and follow the Flashtools flashing process
1.- Open Flashtools
2.- Flash mode > Flashmode > Select the FTF you just downloaded (The one of 700+MB) > Flash
3.- Connect your Phone if Flash mode (It will start flashing).
4.- Boot your phone and you're ready to go.
When selecting the FTF just select it and leave everything as it is and make sure that you have installed the drivers for flashing (
They are where found you installed Flashtools
In a folder called Drivers, open the .exe and Install these:
- Fastboot drivers
- Flashmode drivers
- Xperia Z and SO-02E drivers
If stills doesn't works I can't help any far as that, but I would suggest you that If you are able try to flash it on another computer (It might sound silly but It could actually work ), also make sure that you're running the latest Flashtool which is v0.9.11.0 and can be found here: http://androxyde.github.io/

xkeita said:
Do a hard reset on it (using the button on the back), don't turn it on and follow the Flashtools flashing process
1.- Open Flashtools
2.- Flash mode > Flashmode > Select the FTF you just downloaded (The one of 700+MB) > Flash
3.- Connect your Phone if Flash mode (It will start flashing).
4.- Boot your phone and you're ready to go.
When selecting the FTF just select it and leave everything as it is and make sure that you have installed the drivers for flashing (
They are where found you installed Flashtools
In a folder called Drivers, open the .exe and Install these:
- Fastboot drivers
- Flashmode drivers
- Xperia Z and SO-02E drivers
If stills doesn't works I can't help any far as that, but I would suggest you that If you are able try to flash it on another computer (It might sound silly but It could actually work ), also make sure that you're running the latest Flashtool which is v0.9.11.0 and can be found here: http://androxyde.github.io/
Click to expand...
Click to collapse
Alright perfect, thanks again for all the help! I'm going to try the flash and I'll be back to hopefully say it worked !
I finished flashing it, once I did it told me to unplug my phone and turn it on. It still hasn't turned on but the light has started actually flashing and staying on now compared to before. Hmmmm...
Edit: Nevermind I got it, thank you so much!!! I'm so happy!

close please mods :3

alainmona said:
Alright perfect, thanks again for all the help! I'm going to try the flash and I'll be back to hopefully say it worked !
I finished flashing it, once I did it told me to unplug my phone and turn it on. It still hasn't turned on but the light has started actually flashing and staying on now compared to before. Hmmmm...
Edit: Nevermind I got it, thank you so much!!! I'm so happy!
Click to expand...
Click to collapse
No problem! Keep that .FTF if something like that happens again It might be a life savior.
Thread Solved, mod please close.

Xperia arc S Ultimate HD 3.0.1 HARD BRICK WON'T BOOT WON'T CONNECT

Hello everyone. I know that before I should create a thread I should search the site more to see if there are similar threads. I have but unfortunately I've only found a few with no solutions.
This is about my phone which I flashed Ultimate HD 3.0.2 last June(mid). Everything was going well. I didn't have to restart my phone as much as when I had cyanogenmod. Last Sunday while trying to take a photo my phone died because of low battery. When I got home I charged it but would only get stuck at the Sony logo. To sum it up.
- When turned on/charged, the arc s would only get stuck at the Sony logo(no red LED light). The screen would get brighter, then dimmer, then blank, then go back to the Sony logo. I 'd gladly boot to CWM but nothing happens no matter what button I press. (Maybe I'm doing it wrong? No one clearly knows how to boot into bloody CWM. Almost everyone seems to say, errrr keep pressing back/menu/volume down/power after the Sony logo appears. If someone could clear it up on how to really boot into CWM, that would be great thanks)
- Tried Flashtool, PC companion, SEUS, but the phone also seems to have connectivity problems with the pc. It would slightly detect it then disconnect again. I try to flash a different kernel using Flashtool, the phone's LED turns blue(clearly indicating that it's in fastboot mode), but when I select a kernel, flashtool claims that I have to be in fastboot mode even when my phone's LED is blue.
I can't use any of the 3 tools(SEUS, PC, Flashtool) because it can't even be detected by the pc.(BTW I've fully charged the battery using an independent charger)
I fear this is a hardware problem but I hope it can be fixed. I'd really appreciate help. I've missed college to fix my phone just like I have before but this one won't budge. Thanks.

Flash the stock firmware manually

nrupareliya said:
Flash the stock firmware manually
Click to expand...
Click to collapse
How would he do that, if he clearly said
I can't use any of the 3 tools(SEUS, PC, Flashtool) because it can't even be detected by the pc.(BTW I've fully charged the battery using an independent charger)
Click to expand...
Click to collapse
To OP: Does the phone go into flashmode or fastboot mode? Do you have the drivers installed properly?

bryangld27 said:
Almost everyone seems to say, errrr keep pressing back/menu/volume down/power after the Sony logo appears. If someone could clear it up on how to really boot into CWM, that would be great thanks
Click to expand...
Click to collapse
From my experience, if you install CWM on a rooted phone but with a locked bootloader it uninstalls as soon as you flash a new ROM and you have to reinstall CWM over again every time you do so.

skaveelicious said:
From my experience, if you install CWM on a rooted phone but with a locked bootloader it uninstalls as soon as you flash a new ROM and you have to reinstall CWM over again every time you do so.
Click to expand...
Click to collapse
Not exactly uninstall, the CWM for locked bootloader is installed on /system partition. This partition is wiped every time a new ROM is flashed, therefore removing CWM from your phone.
僕のLT18iから送られてきた

skaveelicious said:
From my experience, if you install CWM on a rooted phone but with a locked bootloader it uninstalls as soon as you flash a new ROM and you have to reinstall CWM over again every time you do so.
Click to expand...
Click to collapse
popthosegaskets said:
Not exactly uninstall, the CWM for locked bootloader is installed on /system partition. This partition is wiped every time a new ROM is flashed, therefore removing CWM from your phone.
僕のLT18iから送られてきた
Click to expand...
Click to collapse
Some (if not most) ROMs, which are available for locked bootloaders, also include recovery already on the /system partition. At least I have seen custom recovery files listed in AROMA installation files for locked bootloader options.
I have not tested it myself (the freedom of unlocked bootloader ), so I am not sure though

New to Xperia M - how hard... or soft, did I brick the little (//&&%/$??

Hey people, got this cute little phone from my wife, was delighted initially because it seemed like custom rom haven and it really is cute little piece of functional white plastic (I meant, it was), but didn't last a day in my "new to Xperia" overconfident hands.
Anyway, I couldn't find any page that was foolproof and really explaining all the details step by step, so it kindaaa seeeems that I forgot the "unlock bootloader" part. I did several unsuccessful attempts at flashing official last version TWRP via terminal emulator and recommended app (can't remember name) - both seemed to do the work but couldn't boot into recovery, just regular reset. Then I tried Rushr app and flashed that TWRP image I had on SD card. I ran Reboot to recovery option - the thing just turned off. Now, what happens is that it vibrates for a second if I hold power button, but no go from there. If I connect it to PC blue light is on and PC says something like SP1FastBoot device connected or something like that.
So the big question is, is this soft or hard brick? What should poor bastard do in any case?
EDIT: Now I realized I get blue indicator light ONLY if I hold volume up before connecting to pc. If not, nothing lights. If I hold volume DOWN, I initially got "SEMC flash device connected", something like that.

your phone is completely alright, just install flashtool,its drives unlock the bootloader(there will be an option) and install recovery, after that flash a rom or stock backup

Thanks a lot, that's great news So in order to minimize risk of such noob mistakes I made (although still not sure what went wrong), I can use Flashtool for all my custom rom needs? Also, where can I download it, the links I found on XDA are dead, and googling brings out Sony's flashtool Emma. I really have no idea if it's the same thing or not, but from description it sounds like a tool for flashing stock roms, not customs. I need to be sure this time
EDIT: On XDA page dealing with TWRP installation: http://forum.xda-developers.com/xperia-m/orig-development/recovery-twrp-xpe it is specifically mentioned NOT to use Flashtool for flashing TWRP. Now it all gets confusing What does it mean, better chose CWM recovery or what?

ojas12345 said:
your phone is completely alright, just install flashtool,its drives unlock the bootloader(there will be an option) and install recovery, after that flash a rom or stock backup
Click to expand...
Click to collapse
Would you by any chance have some specific recommendations regarding recovery and rom combination? I prefer CM, but for instance, they say new CM 13 is for specific version of firmware (4.x, not sure which), and since my device is bricked, I have no way of checking what I have. Is there some combination of recovery/rom that's basically fool/brick proof? I found Flashtool, but I have to put roms in its folder, it doesn't come with or doesn't download firmwares from server or anything right?
I'm running in circles here, I'm stuck with Flashtool, and flashing Fota TWRP via Flashtool isn't recommended so... you see my problem

EDIT: I tried to unlock bootloader via Flashtool, I got middle finger: 08/042/2016 21:42:25 - INFO - Your phone bootloader cannot be officially unlocked
What does it mean? Am I doomed with stock firmware (even if I knew how to recover it) with "no custom roms" diet forever, or is there some "unofficial" solution?

C64Ever said:
EDIT: I tried to unlock bootloader via Flashtool, I got middle finger: 08/042/2016 21:42:25 - INFO - Your phone bootloader cannot be officially unlocked
What does it mean? Am I doomed with stock firmware (even if I knew how to recover it) with "no custom roms" diet forever, or is there some "unofficial" solution?
Click to expand...
Click to collapse
I have tried it with my device and i unlocked my bootloader successfully , just bootloop once , donno why is this happening with you maybe flashtool cannot recognise properly so try reinstalling the drivers from the flashtool folder!

ojas12345 said:
I have tried it with my device and i unlocked my bootloader successfully , just bootloop once , donno why is this happening with you maybe flashtool cannot recognise properly so try reinstalling the drivers from the flashtool folder!
Click to expand...
Click to collapse
There's nothing in .flashtool folder or subfolders, just a basic empty tree Seems Flashtool is a no go in my case, I think I'll try Sony's PC Companion, I think it's intended to recover stuck rom. And it requires 5 gigs of space on hard disk, so I guess it comes with everything already in the package

Fixed! Sony's Xperia tool is nothing short of miracle. Did the whole job, completely recovered device. Good job, Sony!