Develop Bugs

[Q]Xperia Play R800i flashing problems.

Hi. I tried last night to flash several .42 firmwares, including R800i_4.0.2.A.0.42_Generic_UK and R800i_4.0.2.A.0.58_Generic Hong Kong Trade, in order to get rooting access. But, after I connected the phone in flash mode and selected the firmware I wanted to flash it, I received an error: Flash canceled ; Device disconnected .
The usb debugging is on, I selected MSC. The program I used is Flashtool; What I'm doing wrong ? Thanks.
Code:
18/037/2012 00:37:57 - INFO - <- This level is successfully initialized
18/037/2012 00:37:57 - INFO - Flashtool Version 0.8.0.0 built on 2012-05-27 21:57:12
18/037/2012 00:37:57 - INFO - You can drag and drop ftf files here to start flashing them
18/038/2012 00:38:03 - INFO - Device disconnected
18/038/2012 00:38:16 - INFO - Selected R800i_4.0.2.A.0.42_Generic_UK.ftf
18/038/2012 00:38:16 - INFO - Flash canceled
18/052/2012 00:52:33 - INFO - Selected R800i_4.0.2.A.0.58_Generic Hong Kong Trade.ftf
18/052/2012 00:52:33 - INFO - Flash canceled
18/052/2012 00:52:40 - INFO - Device connected in flash mode
18/052/2012 00:52:51 - INFO - Selected R800i_4.0.2.A.0.42_Generic_UK.ftf
18/052/2012 00:52:51 - INFO - Flash canceled
18/052/2012 00:52:58 - INFO - Selected R800i_4.0.2.A.0.42_Generic_UK.ftf
18/052/2012 00:52:58 - INFO - Flash canceled
18/053/2012 00:53:02 - INFO - Device disconnected

Firstly, the current version of flashtool is 0.8.6.0 so grab the update and apply that. Secondly, in the flashtool directory is a subdirectory called drivers (from memory, I use linux and we have native drivers), install these making sure you select the Play driver and flash/fastboot support and try again.

nurofenplus said:
Firstly, the current version of flashtool is 0.8.6.0 so grab the update and apply that. Secondly, in the flashtool directory is a subdirectory called drivers (from memory, I use linux and we have native drivers), install these making sure you select the Play driver and flash/fastboot support and try again.
Click to expand...
Click to collapse
Okay, I updated the flashtool version to 0.8.6.0, I installed the drivers you said, but I receive the same error Flash canceled. My OS is Windows XP Professional. Maybe that could be a problem ?
Regards.
LE: I receive the same error even on Windows 7. Damn, what I can do ?

bogsplay said:
Hi. I tried last night to flash several .42 firmwares, including R800i_4.0.2.A.0.42_Generic_UK and R800i_4.0.2.A.0.58_Generic Hong Kong Trade, in order to get rooting access. But, after I connected the phone in flash mode and selected the firmware I wanted to flash it, I received an error: Flash canceled ; Device disconnected .
The usb debugging is on, I selected MSC. The program I used is Flashtool; What I'm doing wrong ? Thanks.
Code:
18/037/2012 00:37:57 - INFO - <- This level is successfully initialized
18/037/2012 00:37:57 - INFO - Flashtool Version 0.8.0.0 built on 2012-05-27 21:57:12
18/037/2012 00:37:57 - INFO - You can drag and drop ftf files here to start flashing them
18/038/2012 00:38:03 - INFO - Device disconnected
18/038/2012 00:38:16 - INFO - Selected R800i_4.0.2.A.0.42_Generic_UK.ftf
18/038/2012 00:38:16 - INFO - Flash canceled
18/052/2012 00:52:33 - INFO - Selected R800i_4.0.2.A.0.58_Generic Hong Kong Trade.ftf
18/052/2012 00:52:33 - INFO - Flash canceled
18/052/2012 00:52:40 - INFO - Device connected in flash mode
18/052/2012 00:52:51 - INFO - Selected R800i_4.0.2.A.0.42_Generic_UK.ftf
18/052/2012 00:52:51 - INFO - Flash canceled
18/052/2012 00:52:58 - INFO - Selected R800i_4.0.2.A.0.42_Generic_UK.ftf
18/052/2012 00:52:58 - INFO - Flash canceled
18/053/2012 00:53:02 - INFO - Device disconnected
Click to expand...
Click to collapse
this can b fixed by getting flashtool v0.6.9.1 i had the same problem

xperiaplayicsuser2013 said:
this can b fixed by getting flashtool v0.6.9.1 i had the same problem
Click to expand...
Click to collapse
Thanks a lot mate, I did it. I finally flashed the .42 firmware. Now I'm gonna root the phone. Thanks again.
@nurofenplus Thanks for your help.

I've had this problem, I think I ended up either just doing it again(installing the drivers) or maybe even installing the x10 driver set??? Think I read somewhere long ago they work? Might be wrong...he'll maybe I installed em all! It was a few flashes ago... In any case u should have to select "install anyway" on a few unsigned drivers, And remember, back button whilst plugging in USB for flash(green light) search button whilst plugging in for fastboot(blue light) it will certainly be a driver issue on pc, mtp and debugging are irrelevant in flasmode(I think ), it's not a good idea to use a USB hub or even front panel ports if you suspect they are a bit dodgy(ie, part of a combination card reader etc, it also doesn't hurt to always run flastool ad administrator. Hope this helps.
Sent from my R800i using xda app-developers app

@xplayed Yeah, I know, I installed & reinstalled the Xperia Play drivers several times, but it didn't work it. The problem was probably with the program version I used, because after I used flashtool v0.6.9.1 it worked like a charm.
Okay, after I flashed and rooted my XPlay, I tried to install a custom rom ([ROM + THEME] [GSM] [2.3.4] Gin2JellyBean [v1.8.1] |Fast|Smooth|Stable|Eye Candy|), but I reached step 6 and I don't know what to do. How do I flash that custom rom on my phone ? May someone point me a tutorial or be kind and explain me what to do ? Regards.

I had this problem and what I did is just flashed my stock kernel in fastboot but it sure is a program error and not our fault.
Sent from my R800i using xda app-developers app

[Q] XPERIA S... Its life Jim but not as we know it (HELP!)

Ok so Im travelling around Colombia and need a smart phone to keep in touch with my folks back home as I'm out here for a year. All hail to the Xperia S, perfect for my needs and I have loved it since the 30th of Dec from whence I bought it. Turns out the phone is an import from the UK my homeland so ironically 1000s of miles from valid Sony care, but hey what can go wrong?
Well actually few things, as the camera went faulty on Sunday. I read many forums and followed all the advice up and to the last option,which was to reinstall the already upto date software. So I did via SUS. The update seem to go fine until I turned back on the device and reached the twinkling Xperia logo. Unfortunately thats how it stayed and after 30 mins, I hard reset the phone... DOH! I think maybe I should have left it longer in hindsight? Anyway I tried the reinstall again only this time left it alone. 5 hours later still no change, in fact in the end it ran out of battery with no changes, just Xperia Logo. FECKY DOODLES.
So I spent a day yesterday reading through all your related forums like a good little boy and trying various fixes. Initially via SUS then PC companion and then via Rootfix using stock roms (this gave me boot loop)
Log as follows
09/053/2013 09:53:38 - INFO - Device disconnected
09/053/2013 09:53:59 - INFO - Selected LT26i_6.1.A.0.453_UK Generic.ftf
09/053/2013 09:53:59 - INFO - Preparing files for flashing
09/054/2013 09:54:02 - INFO - Please connect your device into flashmode.
09/054/2013 09:54:09 - INFO - Device connected in flash mode
09/054/2013 09:54:09 - INFO - Opening device for R/W
09/054/2013 09:54:10 - INFO - Reading device information
09/054/2013 09:54:10 - INFO - Phone ready for flashmode operations.
09/054/2013 09:54:10 - INFO - Current device : LT26i - BX903CE5FD - 1257-3921_R6G - 1252-0023_6.1.A.2.45 - WORLD_6.1.A.2.45
09/054/2013 09:54:10 - INFO - Start Flashing
09/054/2013 09:54:10 - INFO - Processing loader
09/054/2013 09:54:10 - INFO - Checking header
09/054/2013 09:54:10 - INFO - Flashing data
09/054/2013 09:54:12 - INFO - Loader : S1_Root_de72 - Version : R5C004 / Bootloader status : ROOTABLE
09/054/2013 09:54:12 - INFO - Disabling final data verification check
09/054/2013 09:54:14 - INFO - Processing partition-image.sin
09/054/2013 09:54:15 - INFO - Checking header
09/054/2013 09:54:15 - INFO - Flashing data
09/054/2013 09:54:18 - INFO - Processing kernel.sin
09/054/2013 09:54:18 - INFO - Checking header
09/054/2013 09:54:18 - INFO - Flashing data
09/054/2013 09:54:19 - INFO - Ending flash session
09/054/2013 09:54:19 - ERROR -
09/054/2013 09:54:19 - ERROR - Error flashing. Aborted
09/054/2013 09:54:19 - INFO - Device connected in flash mode
09/054/2013 09:54:21 - INFO - Device disconnected
09/054/2013 09:54:22 - INFO - Device connected in flash mode
09/053/2013 09:53:38 - INFO - Device disconnected
09/053/2013 09:53:59 - INFO - Selected LT26i_6.1.A.0.453_UK Generic.ftf
09/053/2013 09:53:59 - INFO - Preparing files for flashing
09/054/2013 09:54:02 - INFO - Please connect your device into flashmode.
09/054/2013 09:54:09 - INFO - Device connected in flash mode
09/054/2013 09:54:09 - INFO - Opening device for R/W
09/054/2013 09:54:10 - INFO - Reading device information
09/054/2013 09:54:10 - INFO - Phone ready for flashmode operations.
09/054/2013 09:54:10 - INFO - Current device : LT26i - BX903CE5FD - 1257-3921_R6G - 1252-0023_6.1.A.2.45 - WORLD_6.1.A.2.45
09/054/2013 09:54:10 - INFO - Start Flashing
09/054/2013 09:54:10 - INFO - Processing loader
09/054/2013 09:54:10 - INFO - Checking header
09/054/2013 09:54:10 - INFO - Flashing data
09/054/2013 09:54:12 - INFO - Loader : S1_Root_de72 - Version : R5C004 / Bootloader status : ROOTABLE
09/054/2013 09:54:12 - INFO - Disabling final data verification check
09/054/2013 09:54:14 - INFO - Processing partition-image.sin
09/054/2013 09:54:15 - INFO - Checking header
09/054/2013 09:54:15 - INFO - Flashing data
09/054/2013 09:54:18 - INFO - Processing kernel.sin
09/054/2013 09:54:18 - INFO - Checking header
09/054/2013 09:54:18 - INFO - Flashing data
09/054/2013 09:54:19 - INFO - Ending flash session
09/054/2013 09:54:19 - ERROR -
09/054/2013 09:54:19 - ERROR - Error flashing. Aborted
09/054/2013 09:54:19 - INFO - Device connected in flash mode
09/054/2013 09:54:21 - INFO - Device disconnected
09/054/2013 09:54:22 - INFO - Device connected in flash mode
* Please note I had previously rooted the phone via BIN4RYs S root, could this be why I cant update via SUS and Pc companion? I was under the impression that using these would give me back root status.
I'm at a loss now and feel I've exhausted all possibilities, I have since used the SUS update again and managed to bring the beast out of its boot loop state.
Is there a way I could unroot the phone via Rootfix and then try again the SUS update?
Why did I get error flashing using rootfix ?
Might there be a hardware issue, Ive read quite a few motherboard failures and is there a way to test this?
I would be wholly appreciative if any of you fine fellows could lend me your doctoring skills and bring this illusive creature back to a life worthy of living.
Kindest regards
JIM

Download flashtool and the relevant ftf file for what firmware you need and flash it
Everything found here -
http://www.xdafileserver.nl/index.php?dir=Sony+(Ericsson)/SE+Xperia+S+(LT26i)/
Sent from my Jellybean Xperia S

Thanks but I have already used a more recent update to flashtool coupled with the uk ftf rom, but alas got the error flashing aborted within log?

beggz said:
Thanks but I have already used a more recent update to flashtool coupled with the uk ftf rom, but alas got the error flashing aborted within log?
Click to expand...
Click to collapse
did you cheked "no final verification" in flashtool ?

grgana said:
did you cheked "no final verification" in flashtool ?
Click to expand...
Click to collapse
Yeah installed the drivers too , goddamn thing just comes up as error :crying:

tried factory reset, or hold in the same time volume rocker up and power button for 15 sec.. phone vibrate 3 times! - its hard reset and then if wont boot flash again??
i didnt know that you can upgrade via seus or pcc if phone is yust rooted no BL-lock is it true??
tried unroot option in binary4root tool?

grgana said:
tried factory reset, or hold in the same time volume rocker up and power button for 15 sec.. phone vibrate 3 times! - its hard reset and then if wont boot flash again??
i didnt know that you can upgrade via seus or pcc if phone is yust rooted no BL-lock is it true??
tried unroot option in binary4root tool?
Click to expand...
Click to collapse
Yes I hard reset via power button and volume up for 10 secs and get the triple vibrate but I always get the flash error. BL is locked as I have never unlocked it.
Also I tried the unroot option in binary4root but it say device not found, I guess becuase I cannot access the device properly anymore

This is the log if it helps
10/052/2013 02:52:24 - INFO - <- This level is successfully initialized
10/052/2013 02:52:24 - INFO - Flashtool Version 0.9.10.0 built on 2013-01-06 22:22:43
10/052/2013 02:52:24 - INFO - You can drag and drop ftf files here to start flashing them
10/052/2013 02:52:29 - INFO - Device disconnected
10/053/2013 02:53:38 - INFO - Selected LT26i_6.1.A.2.55_SG_Generic_(1257-6921).ftf
10/053/2013 02:53:38 - INFO - Preparing files for flashing
10/053/2013 02:53:44 - INFO - Please connect your device into flashmode.
10/053/2013 02:53:53 - INFO - Device connected in fastboot mode
10/053/2013 02:53:54 - INFO - Device disconnected
10/054/2013 02:54:04 - INFO - Device connected in flash mode
10/054/2013 02:54:05 - INFO - Opening device for R/W
10/054/2013 02:54:05 - INFO - Reading device information
10/054/2013 02:54:05 - INFO - Phone ready for flashmode operations.
10/054/2013 02:54:05 - INFO - Current device : LT26i - BX903CE5FD - 1257-3921_R6G - 1252-0023_6.1.A.2.45 - WORLD_6.1.A.2.45
10/054/2013 02:54:05 - INFO - Start Flashing
10/054/2013 02:54:05 - INFO - Processing loader
10/054/2013 02:54:05 - INFO - Checking header
10/054/2013 02:54:05 - INFO - Flashing data
10/054/2013 02:54:07 - INFO - Loader : S1_Root_de72 - Version : R5C004 / Bootloader status : ROOTABLE
10/054/2013 02:54:07 - INFO - Disabling final data verification check
10/054/2013 02:54:09 - INFO - Processing partition-image.sin
10/054/2013 02:54:10 - INFO - Checking header
10/054/2013 02:54:11 - INFO - Flashing data
10/054/2013 02:54:13 - WARN - This file is ignored : simlock.ta
10/054/2013 02:54:13 - INFO - Processing kernel.sin
10/054/2013 02:54:13 - INFO - Checking header
10/054/2013 02:54:13 - INFO - Flashing data
10/054/2013 02:54:14 - INFO - Ending flash session
10/054/2013 02:54:15 - ERROR -
10/054/2013 02:54:15 - ERROR - Error flashing. Aborted
10/054/2013 02:54:15 - INFO - Device connected in flash mode

sorry mate no idea then

Ok so quick update
I downgraded flash tool version from 0.9.10 version to 0.9.5 version and guess what, The flash was successful with no errors
but now Im back at the Xperia screen exactly the same as with SUS update.
How long should the phone take to boot after the update?

for me, after reflash, it takes 3-5 minutes...

mmm273 said:
for me, after reflash, it takes 3-5 minutes...
Click to expand...
Click to collapse
OK thanks so basically whatever I use to reflash I always end up stuck at the Xperia logo screen.
This is very disheartening.
If the problem is that it is rooted, how do I unroot the phone if I cant actually get past the logo screen??

you stuck on SONY screen or Xperia screen ?

beggz said:
Ok so quick update
I downgraded flash tool version from 0.9.10 version to 0.9.5 version and guess what, The flash was successful with no errors
but now Im back at the Xperia screen exactly the same as with SUS update.
How long should the phone take to boot after the update?
Click to expand...
Click to collapse
if all went fine it shouldnt last more aprox.. 5 minutes more or less
does the phone vibate in bootnig process usualy its a sign that it will bot all the way...
have you tried PM some senior member or developer who had simmilar
problem ?
it shouldnt bee rooted if you flashed firmware again you suposed to loose root that way
since yor bootloader is locked and phone is able to conect i dont think its total brick
---------- Post added at 09:21 PM ---------- Previous post was at 09:11 PM ----------
if you still have root and can pass the sony logo you should bee able to go in to CWM by tapping the logo or volume -
have you tried?

grgana said:
if all went fine it shouldnt last more aprox.. 5 minutes more or less
does the phone vibate in bootnig process usualy its a sign that it will bot all the way...
have you tried PM some senior member or developer who had simmilar
problem ?
it shouldnt bee rooted if you flashed firmware again you suposed to loose root that way
since yor bootloader is locked and phone is able to conect i dont think its total brick
---------- Post added at 09:21 PM ---------- Previous post was at 09:11 PM ----------
if you still have root and can pass the sony logo you should bee able to go in to CWM by tapping the logo or volume -
have you tried?
Click to expand...
Click to collapse
Thanks for reply
No vibration within booting process
It Stays at Xperia screen logo
Regarding CWM , Im sorry I dont know what that is. Do i install it via rootfix?
Ps I have looked for others with same problem everywhere but cant find anyone that I can address

You didnt running any custom roms or mods? CWM is a clockwork mod recovery, so yu can flash mods and custom roms after root, so if you didnd install it you cant enter it. All abut root and CWM is in development section of xperia S in this case
Sorry man, i was thinkig if you have it maybe you could restore backup but if you didnt i dont know what next
Wish you luck and hope youll find solution!

grgana said:
You didnt running any custom roms or mods? CWM is a clockwork mod recovery, so yu can flash mods and custom roms after root, so if you didnd install it you cant enter it. All abut root and CWM is in development section of xperia S in this case
Sorry man, i was thinkig if you have it maybe you could restore backup but if you didnt i dont know what next
Wish you luck and hope youll find solution!
Click to expand...
Click to collapse
Hey big THANKS for al your suggestions!!
I was keeping away from Cutom roms and mods and stuck to the official updates, Ironically to prevent anything like this happening but it turns out that ever since an official SUS update my phone has been bricked.
If anybody else knows of anyone in or have had similar situation please get in touch.

http://forum.xda-developers.com/showthread.php?t=1849170
I fint know if it gonna help but it wort to look, if you havent yet

grgana said:
http://forum.xda-developers.com/showthread.php?t=1849170
I fint know if it gonna help but it wort to look, if you havent yet
Click to expand...
Click to collapse
Thanks Man I think I cracked it and for anyone else that finds themselves in a similar position, I finally gained access via a GB rom namely this one http://www.xdafileserver.nl/Files/S... (LT26i)/STOCK ROMS/GB/LT26_6.0.A.3.76_TW.zip
I flashed rom via Flashtool and GB loaded up fine.
I am now using native SUS to upgrade to available ICS 6.1.a.45
Its upgrading at the moment and starting applications but seems to be going fine.
Fingers crossed.

[Q] Xperia play stuck on SOny Ericcson screen needs to be flashed with stock rom.

Well it begins as always.... with a borded guy inside his house on a weekend tinkering with his old phone. So i decided to root my phone since i would be replacing it in 2/3 months any way, and i managed to succesfully zergrush it, and it was unlocked. So being as happy as i was i got greedy and decided to flash it with 4.0.3 beta for xperia play. In retrospect that was not my smartest move yet. So i got clockworkmod and the zip file which was
DooMLoRD-PLAY-GSM-ICS-4.0.3-ROM-LEAKED-v01
I than proceeded to flash it which was also succesfully (using the clockwork recovery menu flash from zip file). BUt than after restarting my phone it just stays at Sony Ericsson and does nothing else (left on for 10 hours) while sleeping last night.
So when i woke up i decided to give it a shot at fixing it and installed FLASHTOOL. I downloaded the stock kernel.R800i_4.0.2.A.0.42_Generic. And tried to flash it. Now first of all Flashtool would keep telling me to install the drivers. I somehow managed to finally get them installed at which point it would continue to flash except it would reach a point giving me an error. CASE IN POINT bellow.
10/041/2013 09:41:52 - INFO - Device connected in flash mode
10/042/2013 09:42:03 - INFO - Selected R800i_4.0.2.A.0.42_Generic.ftf
10/042/2013 09:42:03 - INFO - Preparing files for flashing
10/042/2013 09:42:03 - INFO - Please connect your device into flashmode.
10/042/2013 09:42:04 - INFO - Opening device for R/W
10/042/2013 09:42:04 - INFO - Reading device information
10/042/2013 09:42:04 - INFO - Phone ready for flashmode operations.
10/042/2013 09:42:04 - INFO - Start Flashing
10/042/2013 09:42:04 - INFO - Processing loader
10/042/2013 09:42:04 - INFO - Checking header
10/042/2013 09:42:04 - INFO - Ending flash session
10/042/2013 09:42:04 - ERROR - ERR_SEVERITY="MAJOR";ERR_CLASS="SECURITY_CLASS";ERR_DYNAMIC="SIN header verification failed"
AFterwhich nothing happens.
Also tried to reflash it using fastboot boot command which keeps giving me (waiting on device message)
Sony Ericsson Xperia Play R800I
Had: 4.0.2.A.0.42
CLockworkmod 5 i believe
FLashtool 0.9.7.0
So now can anyone help me with getting this phone working again. Assume i don't have USB debugging in which case give me an idea on how to flash it without the usb debugging. Thank you all in advance for the wonderfull gift of knowlidge.
Best Regards.
Noobmist

disable verification in flashtool
Sent from my R800i using Tapatalk 2

Indeed
Indeed you are wise to suggest such action. It appears as if that was my problem. However i am able to get 4.0.2 a 0.58 Enchanted on my play but i cannot get the stock 0.42 version to run. Interestingly however the doomlord root works on 58 even though it should only work on 42. And for the life of me i cannot figure out why i can't get the ICS to work on my phone. I am thinking perhaps the kernel is not flashing with it since i keep hanging on boot :S At any rate my phone is useable again but not with ICS
fma965 said:
disable verification in flashtool
Sent from my R800i using Tapatalk 2
Click to expand...
Click to collapse

[Q] Unknow device driver error, mid flashtool firmware, Flashing Red

Hello, and thank you in advance for any and all help you can give me here. I am going to attempt to give you all the info I can to the best of my ability.
r800at GSM 12W05 - purchased unbranded / sim unlocked about 1 year ago Locked Bootloader
I almost immediately flashed new firmware and rom Gin2JellyBean -
i dont recall for sure specifics but I am pretty sure it was 2.3.4 version running on the 4.0.2.A.0.42
I had no issues with this install and everything went flawlessly. I do know that in my phone info after this it was recorded as a r800i.
This worked well and I liked it quite a lot until recently most of the new games would lag/ freeze/ crash.
After a great deal of reading I found [Rom][PLAY][PORT][MULTIBOOT] AtoMic GB 7.0 [ The Ultimate Dual Core Experience ]
http://forum.xda-developers.com/showthread.php?t=2219154
and thought it may help with some of my issues.
So yesterday I downloaded -
- Flashtool Windows Edition - v0.9.10.1
- CWM Recovery Installer v.5
- Firmware 4.0.2.A.0.58 Enhanced
I installed the flashtool, fastboot and xperia play drivers from the install folder of flashtool, and installed the USB Flash Driver(Gordons Gate)
I activated debugging mass storage and followed the tutorial 100%. I am running win7 64 on my pc
Upon launching Flashtool I selected the firmware for flash and proceeded to connect my phone while holding back. Everything seemed to be fine, the flashtool began doing its thing and progressed to 40% completion before freezing up and my phone disconnecting from the pc. Windows reported Unknown Device, driver error.
Now a little info on my recollection of the flashtool info, i wish I had taken a screen shot but at the time I didnt know I would need it. So what I recall from the info was that it had progressed to a system file install of some sort, it had completed about 6-10 files and that I found it interesting that the phone info it reported seemed to show a 4.0.2.A.0.62 firmware. That is if I was reading it correctly.
I tried uninstalling and reinstalling Flashtool, drivers, pc companion, I tried older versions of flashtool, but nothing seems to be correcting the unknown device problem. I did multiple restarts/ reboots of both the phone and pc in the process, literally trying everything I could to get it to re connect properly. To no avail.
Now the phone itself, when i try to power it on i get a flashing LED, I am color blind unfortunately But I am 90% sure its a flashing red light.
If I attempt to plug it in my pc installs the SEMC Flash Device driver and I get a green steady charging light. After approximately 30 seconds my phone displays its logo for a few seconds followed by what appears to be a picture of a phone with a triangle warning sign with an exclamation mark in it. That displays for maybe 10 seconds and my pc errors flashing an unknown device - driver issue and the phone led goes back to flashing red.
If there is any other info you need please feel free to ask, ill do my best. And again, thank you so much for the help.

Just figured I would add that I would like to get the bootlader unlocked as well. So if there is any way to incorporate fixing my issue with getting the bootloader unlocked that would be fantastic.
Also I found this from another persons post and made some edits to it so it is as close to what mine said as possible! Besides date time stamp that is.
11/059/2012 15:59:13 - INFO - <- This level is successfully initialized
11/059/2012 15:59:15 - INFO - Flashtool Version 0.9.10.1
11/059/2012 15:59:15 - INFO - You can drag and drop ftf files here to start flashing them
11/059/2012 15:59:25 - INFO - Device disconnected
11/059/2012 15:59:45 - INFO - Selected R800i_4.0.2.A.0.62
11/059/2012 15:59:45 - INFO - Preparing files for flashing
11/000/2012 16:00:27 - INFO - Please connect your device into flashmode.
11/000/2012 16:00:50 - INFO - Device connected in flash mode
11/000/2012 16:00:50 - INFO - Opening device for R/W
11/000/2012 16:00:50 - INFO - Reading device information
11/000/2012 16:00:50 - INFO - Phone ready for flashmode operations.
11/000/2012 16:00:50 - INFO - Start Flashing
11/000/2012 16:00:50 - INFO - Flashing loader
*** 11/000/2012 16:00:53 - INFO - Loader : S1_Loader_Root_773f - Version : R4A066 / Bootloader status : Not Rootable ***** this line im unsure of besides the not rootable part
11/000/2012 16:00:53 - WARN - This file is ignored : simlock.ta
11/000/2012 16:00:53 - INFO - Flashing kernel.sin
11/000/2012 16:00:55 - INFO - Flashing fota1.sin
11/000/2012 16:00:56 - INFO - Flashing fota0.sin
11/000/2012 16:00:57 - INFO - Flashing adsp.sin
11/001/2012 16:01:00 - INFO - Flashing amss_fs.sin
11/001/2012 16:01:00 - INFO - Flashing amss.sin
11/001/2012 16:01:11 - INFO - Flashing system.sin
*** This would be where my progress stopped do to the driver malfunction - 40%
Also I had found this thread before I posted but the information included is extremely vague. I PM the OP in hopes for some help as well.
http://forum.xda-developers.com/showthread.php?t=1252038

Ok so I picked up my phone and tried hitting the power button and I got a different result now.
For some reason, after letting it sit untouched for almost 24 hours the power button now causes a small vibration and logo screen very briefly, but then flashes that phone and exclamation sign symbol and goes dark again.
To be honest im rather scared to try and do anything with it without guidance at this point now.
I really dont want to brick this phone permanently. And am too inexperienced to feel comfortable just randomly trying to reflash.
Is this normal for it to just stop showing red led and seemingly sort of fixing itself?

Any thoughts? Ideas? I just need some guidance so I dont brick this thing for good.. I miss my phone!!

[ArcS] Processing of loader.sin finished with errors

I know, there are plenty of topics for this error, but I didn't found a solution.
I tried the following...
- repair option in PC Companion --> error 2003 (even if I could repair the unlocked phone few weeks ago)
- FlashTool (newest version) stops with this error:
31/053/2015 22:53:56 - INFO - Device connected in flash mode
31/053/2015 22:53:57 - INFO - Opening device for R/W
31/053/2015 22:53:57 - INFO - Reading device information
31/053/2015 22:53:57 - INFO - Phone ready for flashmode operations.
31/053/2015 22:53:57 - INFO - Opening TA partition 2
31/053/2015 22:53:57 - INFO - Current device : LT18i - BX902LM8AB - 1254-2716_R1I - 1246-7916_4.1.B.0.431 - WORLD-i_4.1.B.0.587
31/053/2015 22:53:57 - INFO - Closing TA partition
31/053/2015 22:53:57 - INFO - Start Flashing
31/053/2015 22:53:57 - INFO - Processing loader.sin
31/053/2015 22:53:57 - INFO - Checking header
31/053/2015 22:53:57 - ERROR - Processing of loader.sin finished with errors.
31/053/2015 22:53:57 - INFO - Ending flash session
31/054/2015 22:54:04 - ERROR -
31/054/2015 22:54:04 - ERROR - Error flashing. Aborted
31/054/2015 22:54:04 - INFO - Device disconnected
Click to expand...
Click to collapse
I can flash new kernels (Lupus & CM12.1 kernel), but if I want to go back to the .587 ROM, I can't flash them through FlashTool. Any idea? Bricked?
I always connected the phone after the popup which told me to do so. I also installed all the drivers - the phone is recognized in flash & fastboot mode (using Windows 7).

i have the same ****
try to install an older version http://www.mediafire.com/download/2ut97v5aszylr4w/flashtool-0.9.18.1-windows.exe

Daniel D. said:
I know, there are plenty of topics for this error, but I didn't found a solution.
I tried the following...
- repair option in PC Companion --> error 2003 (even if I could repair the unlocked phone few weeks ago)
- FlashTool (newest version) stops with this error:
I can flash new kernels (Lupus & CM12.1 kernel), but if I want to go back to the .587 ROM, I can't flash them through FlashTool. Any idea? Bricked?
I always connected the phone after the popup which told me to do so. I also installed all the drivers - the phone is recognized in flash & fastboot mode (using Windows 7).
Click to expand...
Click to collapse
You got an error because of latest version of flashtool.
Use only flashtool
18.5 - https://drive.google.com/file/d/0B8q4pCAugmPgZWk0ZkFSTHk4a0E/view
or
18.6 - https://drive.google.com/file/d/0BzVQf67OZ9NtSnlHZEtWTnZ1LWc/view
or
8.0 - http://www.mediafire.com/download/ucczmw37815j2gv/flashtool-0.9.8.0-windows.exe

It worked! Note that Avast thinks that these versions of Flashtool are infected with some malware. Avoid that somehow

I can confirm this worked for me too. I was in the same situation.
My buddy in Canada mailed me his 2011 Xperia Arc as he wanted me to gain root on it. I did that, then unlocked the bootloader (this was carrier branded to Rogers). I had to go the long route for the BL unlocking (the whole "install this program, buy these credits, touch terminals under a panel with a paperclip, etc"). Then I installed CWM Recovery, then installed CyanogenMod 10, Android 4.1.2, but it was buggy as hell and was randomly rebooting. So I decided to try some new ROMs, hopefully more stable. BUT all the ones I wanted required I flash build 4.1.B.0.587 first. So I got the FTF build file needed, got Flash Tool 0.9.19.8, but kept getting the exact same error message, "ERROR - Processing of loader.sin finished with errors." So I tried Sony's Flash Tool, Emma. Then that told me the phone had a locked BL! WTF! I double checked, and that was not true. So then I tried Sony's PC Companion, and their server went down RIGHT after I started getting somewhere... FFUUUUUU!!! So then I found this thread... Got Flash Tool 0.9.18.6, got it all prepped to go (FTF file, drivers, etc), and fired it off... FAILED again. Tried again, this time with phone plugged in from the GET GO and NOT from when Flash Tool tells me to. And guess what, I was able to flash this stock ROM WITHOUT the phone actually being in Flashmode. LOL! What I mean is, when Flash Tool prompted me to hold Back and then plug in the phone, the phone was already plugged in... then BAM, it started working!
Either way, I'm now happy cos I can try out some more stable ROMs.
I hope anyone else in that situation finds this and gets some joy too.

Thanks for all the answers. I ended up installing Legacy Xperia CM 12.1. The only system beside .587 which has an acceptable speed on my Arc S - and up to date!