Hey guys, my xperia play R800i wont boot. what happened was I was trying to flash original firmware through flash tool and then I get an error on flashtool and it says below "device disconnected" so im like what the heck. ill give it another go, right. but then when I go and plug it back into the computer while holding the back button the LED doesnt go green instead it flashes red, three times. and the computer shows it up as an unrecognized device. I cant to a repair through PC companion and I am not able to flash through flash tool, any ideas?
ps. it is locked boot loader and it says :bootloader unlock allowed: no
if that is any help.
Put your device on charge or wait a while. A suggestion that may work
Sent from my ASUS Transformer Pad TF300T using xda app-developers app
I left it on charge for eight hours straight and still the same result
Have you tried taking battery out for a few seconds then putting it back and try to turn it back on charger.
R800x-unlocked/ Aokp-m6/ 4.0.4
Lordomn said:
Have you tried taking battery out for a few seconds then putting it back and try to turn it back on charger.
R800x-unlocked/ Aokp-m6/ 4.0.4
Click to expand...
Click to collapse
Yes, still no luck. I have tried everything. I am waiting to get a reply back from someone who can do it. I get my HTC Incredible S back in 2 weeks anyway, it just means that I dont have a phone.
NevErSn0w said:
Yes, still no luck. I have tried everything. I am waiting to get a reply back from someone who can do it. I get my HTC Incredible S back in 2 weeks anyway, it just means that I dont have a phone.
Click to expand...
Click to collapse
Is it booting upto se logo???
Sent from my R800i using xda premium
sorry but mine doesnt show the logo,when you press the on button it just blinks,3 times
i need assistance ASAP
It means insufficient charge you will need a different phone capable of charging it and charge it to 100% i know cuz it happened to me
Sent from my GBTweaked v7.1 r800x using Tapatalk 2
Try pressing the power button along with some other button to switch it on. Weird, but worked for me once on my x10 mini. in that phone, power + home worked for me twice
NevErSn0w said:
Hey guys, my xperia play R800i wont boot. what happened was I was trying to flash original firmware through flash tool and then I get an error on flashtool and it says below "device disconnected" so im like what the heck. ill give it another go, right. but then when I go and plug it back into the computer while holding the back button the LED doesnt go green instead it flashes red, three times. and the computer shows it up as an unrecognized device. I cant to a repair through PC companion and I am not able to flash through flash tool, any ideas?
ps. it is locked boot loader and it says :bootloader unlock allowed: no
if that is any help.
Click to expand...
Click to collapse
just simply charge the phone then after a minute, slide the d-pad and I don't understand why it will turn on and it will work just fine..
Help asap please!!
Hi,
I am in the same situation here. I tried to flash my xperia play using flashtool with a "ftf'" for the r800a. Because it was initally flashed to r800i. The flash ended fine, but the phone wont start, it is not allowing me to flash it agai because for my pc the device is disconnected and it is not charging. I am really desesperated. Any ideas?!? I had already installed the drivers for the ZEUS flash and for my phone!
Thanks
[Q]R800i wont turn on! red light blinking 3 times.
My Xperia play(R800i) wont turn on after i update. I change from 2.3.4 to 2.3.3 to root my phone. After rooting, i update the software. It turns off by itself. I dont know what to do. When i pressed the on button it will blink red light 3 times. When i charged my phone, the light turns green. Green light means battery fully charged right? but why i still cant turn on my phone?
Bootloader: unlock
Root: Yes
Please help! its my new phone. Thank you!
you should not have updated your phone that way... looks like you semi bricked it... get in touch with Alejandrissimo whether it be on here or on his site... he should be able to fix it.
freewzeme hawk said:
My Xperia play(R800i) wont turn on after i update. I change from 2.3.4 to 2.3.3 to root my phone. After rooting, i update the software. It turns off by itself. I dont know what to do. When i pressed the on button it will blink red light 3 times. When i charged my phone, the light turns green. Green light means battery fully charged right? but why i still cant turn on my phone?
Bootloader: unlock
Root: Yes
Please help! its my new phone. Thank you!
Click to expand...
Click to collapse
If you have updated phone using seus or pc companion then relock bootloader and flash ftf using flashtool then unlock bootloader Or if you used flashtool then you have broken .ta so contact alejandressimo
Sent from my R800i using xda premium
Change battery !!
Related
Hi guys,
I did something very stupid and it seems I've bricked my arc for good
My Arc had unlocked bootloader and was on rooted 2.3.2. When the phone found firmware OTA update, I chose to download it, then the phone rebooted and started installing new firmware. After a minute or so, it turned off and that was the end, it's not possible to turn it on any more. The led won't even lit up. Is there anything I can do to revive it ?
Arrrgh, this exact same thing happened to me, I woke up and it said there was software update available (I have unlocked bootloader and rooted 2.3.2)
I blame still being mostly asleep on hitting ok. Now I have a brick!
Some more info.
I've tried pulling the battery and putting it back in, It still won't power on.
I've tried holding down menu and plugging it into USB to reflash it and the blue light doesn't come on.
Sorry to hear that, and many people have this problem: http://forum.xda-developers.com/showthread.php?t=1106250
Can't update firmaware through OTA after unlocking bootloader
Sorry to hear about your phone
I always turn of the "auto check for updates" thingy on android. Learned the hard way on my Desire when it got updated to Froyo over OTA and had to wait a while for root lol.
Anyway,SE provided the info to unlock the bootloader and that an OTA coming from them bricks the phone is kinda silly. Far as i know u can't update through SEUS (might be wrong) when it's unlocked and it would be a nice idea maybe to not be able to install the OTA update either.
Mano1982 said:
Sorry to hear that, and many people have this problem: http://forum.xda-developers.com/showthread.php?t=1106250
Can't update firmaware through OTA after unlocking bootloader
Click to expand...
Click to collapse
Jerpelea has posted an unbrick (softbrick) package, can anyone test if this can unbrick the device?
http://forum.xda-developers.com/showthread.php?t=1116970
magnumhex said:
Jerpelea has posted an unbrick (softbrick) package, can anyone test if this can unbrick the device?
http://forum.xda-developers.com/showthread.php?t=1116970
Click to expand...
Click to collapse
won't work if you can't get it into flash mode.
Can't you get it into Fastboot mode (give it a few hours charge..) then pull the battery for 30 seconds...
then hold the menu button while plugging the usb cable in... should (in theory) go into fastboot mode - then you can fastboot flash a fresh system.img
im_iceman said:
Can't you get it into Fastboot mode (give it a few hours charge..) then pull the battery for 30 seconds...
then hold the menu button while plugging the usb cable in... should (in theory) go into fastboot mode - then you can fastboot flash a fresh system.img
Click to expand...
Click to collapse
Tried - no help though. Any other ideas? Or just to go and buy a new one?
By the way, did the same thing: my Arc LT15i has/had unlocked bootloader, rooted 2.3.2 (first firmware) and is/was 3.0.A.2.181. While preparing to try to lock bootloader in order to use SEUS and upgrade firmware, I've connected the phone which asked me to check for the updates and found T-mobile update (approx. 40Mb). Asked to dowloand and an idiot pressed "OK". And now, everything is black - just as the mask of the phone is.
The green light just blinks when the "power on" button is pressed, or charger is plugged in.
Can't it be unbricked with flashtool?
Sent from my LT15i using Tapatalk
[UPDATE] to my previous post:
Steps I have done:
1. Charged the battery for 4-5 hours
2. Flashed my Arc using the manual for flashing by @Step666
3. The progress went well and at the end there was a message:
"INFO - Now unplug the device and power it on
INFO - Then go to application settings
INFO - turn on Unknown Sources and Debugging"
I have tried to turn on the phone. There was a small vibration as when you're turning on the phone (note: before flashing there was not even this vibration when pressing power on button), but the screen remains black.
Any ideas for next step(s)? Thanks for trying to help!
spngbby said:
[UPDATE] to my previous post:
Steps I have done:
1. Charged the battery for 4-5 hours
2. Flashed my Arc using the manual for flashing by @Step666
3. The progress went well and at the end there was a message:
"INFO - Now unplug the device and power it on
INFO - Then go to application settings
INFO - turn on Unknown Sources and Debugging"
I have tried to turn on the phone. There was a small vibration as when you're turning on the phone (note: before flashing there was not even this vibration when pressing power on button), but the screen remains black.
Any ideas for next step(s)? Thanks for trying to help!
Click to expand...
Click to collapse
Anyone found any solution??
Thanks
Try to repair it with pc companion. I had the same pb and this manip fix it.
Solved
lenathou972 said:
Try to repair it with pc companion. I had the same pb and this manip fix it.
Click to expand...
Click to collapse
This solved my bricked arc
sorry for spaces b/w link
talk. sonyericsson .com /thread/ 24813
How can you repair a bricked phone with pc companion? Dont u need the phone to be booted and running?
No, but it will need flash mode. Hold back button while plugging in usb to pc. If not recognized, use Wotan server.
Sent from my LT15a using xda premium
tenca1 said:
Anyone found any solution??
Thanks
Click to expand...
Click to collapse
Did you find a solution to this i got the exact same thing
djc
djc151084 said:
Did you find a solution to this i got the exact same thing
djc
Click to expand...
Click to collapse
Found the problem myself, after sliding up the little black test point cover, it interfered with the screen, so holding the top left corner tight enabled the screen, so shook the phone a bit and it's fine now, must have been wedged somewhere it shouldn't have been.
Djc
Sent from my CM9 ICS MB525
Ok after my sony ericsson xperia play did the software upgrade while on the charger, it will not boot back up!!
Not sure what happend, but when you press the power button, it only vibrates once but will not boot back up!
It just shows a black screen!!!!
I have sent it in to the shop and we are stuck as to how to get it on.
You can not even get into the boot loader screen!
Its been a week, and i don't know what the hell to do!!!
Some one please help!!!!
Does the power button light up green when you hold down the search button while plugging into a computer? If so, use flashtool to flash back to the stock firmware
Yes it dose, the tech guy and me have tried to do so, however the computer sees the device but dose not know what it is, however even when the files are finished it sitll dose not boot up!
jacklebott said:
Does the power button light up green when you hold down the search button while plugging into a computer? If so, use flashtool to flash back to the stock firmware
Click to expand...
Click to collapse
If it lights up green then you cant get into fastboot, it should light up blue, if im not mistaken!
Is your phone Rooted, with BL Unlocked, and do you have CWM Recovery? You said you can not get into Bootload screen? Did you mean Recovery? Try pushing volume down repeatedly while pressing the power button, continue hitting volume down till you see the recovery screen. If you can get into recovery just do a nandroid recovery/restore, provided you did a back up prior to your issue.
It dose not light up blue, but it dose not go into the recovery screen at all, in fact when you press the power button, gives a small vibrate and the screen is still black!
Also when you put it on the charger the LED light is green, really frustrated.
However, I am new at this, like I said only had the device for a day, and this happened after I did a software update, so I am not sure what a CWM means, kindly clarify, think of giving instructions not just to a newbie, but to some one that has no clue what is going on! LOL sorry man I really am new to all of this, I just want it to work, so kindly provide me with step by step instructions that you would give to a five year old child.
Hmm... that's interesting. A CWM is a custom recovery. Green light when plugged in means its charging. It sounds almost like your phones LCD is not receiving a signal anymore, if that's the case, seeing as you wouldn't see anything on the screen in order to even do a recovery, I don't see a lot of options here. If its brand new, then its under warranty, take it back and exchange it.
Sent from my R800x using XDA App
This has nothing to do with your LCD =|.
It's sony's stupid software bricking the xperia play for no valid reason ; happened to me as well.
Only fix is to download Sony Ericsson Update Service and keep on retrying the software update after it fails ; This is not the Sony Ericsson Pc Suite ; Also try removing the battery for 30 seconds after 6-8 retries on SEUS - happened to me a few times after the original occurence since i was trying to get back to complete stock.
Thanks for the input, I was lost on how to help out on this one! I thought it was only bricking the rooted unlocked phones.
XperianceIT
sent from my Xplay R800X, using XDA App!
Thanks, so I need to use the update app from Sony Ericsson?
I will try it, however would it work after I flashed it ?
I did a few times and it took the flash files, yet still wont boot up.
XperianceIT said:
If it lights up green then you cant get into fastboot, it should light up blue, if im not mistaken!
Is your phone Rooted, with BL Unlocked, and do you have CWM Recovery? You said you can not get into Bootload screen? Did you mean Recovery? Try pushing volume down repeatedly while pressing the power button, continue hitting volume down till you see the recovery screen. If you can get into recovery just do a nandroid recovery/restore, provided you did a back up prior to your issue.
Click to expand...
Click to collapse
I wasn't trying to get him to use fastboot (blue light), I was saying to go into flash mode (green light)
Its still not booting up and the pc is now saying it dose not recognise my device!!
What to do????
As long as you can get into flash mode(green light, when you connect to pc) you're ok, wel re trying on seus and eventually it will work
Edit- it can take around 10 retries in my experience
Sent from my R800i using XDA App
Nabeel_Nabs said:
As long as you can get into flash mode(green light, when you connect to pc) you're ok, wel re trying on seus and eventually it will work
Edit- it can take around 10 retries in my experience
Sent from my R800i using XDA App
Click to expand...
Click to collapse
What do you mean by flash mode????
How do I connect my device to the PC since the PC is saying that the USB device connected is not recognised?
djskittel said:
What do you mean by flash mode????
How do I connect my device to the PC since the PC is saying that the USB device connected is not recognised?
Click to expand...
Click to collapse
Connect it to your PC with USB, Then go to support Zone in Pc Companion then select Phone software update and click Repair and follow the instructions, it worked for me when pc companion decided to brick me...
EDIT: Or you could always Flash 2.3.4, tut here: http://forum.xda-developers.com/showthread.php?p=20151540 just follow the first two posts, I believe it will work if Flashmode is still working (The tut will tell you how to get into there)
correct me if I have said anything wrong, was in a rush.
djskittel said:
What do you mean by flash mode????
How do I connect my device to the PC since the PC is saying that the USB device connected is not recognised?
Click to expand...
Click to collapse
When you connect the phone to the pc does the led stay green, if it does that's called flash mode , keep.on tryimg seus to flash the phine, this is not included in pc companion and is separate software
Sent from my R800i using XDA App
This happened to me to, so you are saying I should use SEUS to update over and over until it works?
---------- Post added at 09:32 PM ---------- Previous post was at 09:27 PM ----------
Nabeel_Nabs said:
As long as you can get into flash mode(green light, when you connect to pc) you're ok, wel re trying on seus and eventually it will work
Edit- it can take around 10 retries in my experience
Sent from my R800i using XDA App
Click to expand...
Click to collapse
Should I do an update or the reset and update option in SEUS?
Dear users, I have a big problem with my phone xperia play r800i 2.3.4.I tried to flash cyanogenmod but i did something wrong.After that my phone is dead. I cant turn it on,when i am going to do this an orange light lights up on the turn on button.It goes on black screen and then nothing.No logos are appeared. I tried to flash the default kernel from android gadgematics but i couldnt. The last time i did this i kept tapping the search button until it lights the blue led light on the turn on button, i tried to flash the kernel but it didnt happen anything. If you have any other questions write me to make it easier to help me for my problem. My phone has unlocked bootloader but it isnt root.Can you help me please :crying::crying::crying:
TheVeteran said:
Dear users, I have a big problem with my phone xperia play r800i 2.3.4.I tried to flash cyanogenmod but i did something wrong.After that my phone is dead. I cant turn it on,when i am going to do this an orange light lights up on the turn on button.It goes on black screen and then nothing.No logos are appeared. I tried to flash the default kernel from android gadgematics but i couldnt. The last time i did this i kept tapping the search button until it lights the blue led light on the turn on button, i tried to flash the kernel but it didnt happen anything. If you have any other questions write me to make it easier to help me for my problem. My phone has unlocked bootloader but it isnt root.Can you help me please :crying::crying::crying:
Click to expand...
Click to collapse
can u boot ur phone to flashmode?
Flash a stock firmware.
And please use a good heading the next time.
Sry for my bad English
Rom: Xperia NXT GB 2 r1
Kernel: Lupus GB v9 720p
Thanks to all developers/devs for their hard work. Xperia play is alive.
Sent with R800i using Tapatalk
raminta said:
can u boot ur phone to flashmode?
Click to expand...
Click to collapse
Yes,sometimes
TheVeteran said:
Yes,sometimes
Click to expand...
Click to collapse
So do what hansi said,download on of the firmwares from here :http://forum.xda-developers.com/showthread.php?t=2184897
And flash it using flashtools
Sent from my R800i using xda premium
What the [email protected]!!ck!
raminta said:
can u boot ur phone to flashmode?
Click to expand...
Click to collapse
From yesterday i am trying to connect the phone with pc,but it doesnt connect anymore.A week later it connected four times but i didnt know what to do so... i dont understand what is happening.Now my phone is not recognised by pc
TheVeteran said:
From yesterday i am trying to connect the phone with pc,but it doesnt connect anymore.A week later it connected four times but i didnt know what to do so... i dont understand what is happening.Now my phone is not recognised by pc
Click to expand...
Click to collapse
dose ur power button led turns to green when u connect ur phone to computer???
raminta said:
dose ur power button led turns to green when u connect ur phone to computer???
Click to expand...
Click to collapse
Sorry for my late answer, no the power button does not turns to green when I connect it with my pc,but it lights an orange light and it says that the device is unrecognised.
TheVeteran said:
Sorry for my late answer, no the power button does not turns to green when I connect it with my pc,but it lights an orange light and it says that the device is unrecognised.
Click to expand...
Click to collapse
Try another USB port or reinstall drivers
Sent from my R800i using xda premium
TheVeteran said:
Sorry for my late answer, no the power button does not turns to green when I connect it with my pc,but it lights an orange light and it says that the device is unrecognised.
Click to expand...
Click to collapse
Could also try QUSB Dload reboot I forget the buttons volume down or is it up?+home button. Also reinstall drivers ive had this problem before dont worry ure phone is not beyond repair just keep trying also when it's connect try adb reboots.also let the phone charge if it's not above 50% sometimes it wont go into flashmode.
Sent from my LT28i using xda app-developers app
I had just successfully rooted my xperia play r800i and was installing CWM. After the installation was successful, I unplugged the phone as Flashtools said but it won't start. Now it's not even being detected by Flashtools. It is being detected by my laptop only with the beep sound and nothing else.
Also my battery was around 20% while I was flashing so maybe that had something to do with it.
Waiting for help by a generous XDA member, again.
Thanks in advance!
AkifMehmood said:
I had just successfully rooted my xperia play r800i and was installing CWM. After the installation was successful, I unplugged the phone as Flashtools said but it won't start. Now it's not even being detected by Flashtools. It is being detected by my laptop only with the beep sound and nothing else.
Also my battery was around 20% while I was flashing so maybe that had something to do with it.
Waiting for help by a generous XDA member, again.
Thanks in advance!
Click to expand...
Click to collapse
Flash stock rom again
If ur phone doesn't have charge , charge it for one hour then flash stock rom
Sent from my R800i using xda premium
raminta said:
Flash stock rom again
If ur phone doesn't have charge , charge it for one hour then flash stock rom
Sent from my R800i using xda premium
Click to expand...
Click to collapse
I charged it for about 2 hours not flashtools wont detect it when I try to hold the back button while inserting the USB cable
AkifMehmood said:
I charged it for about 2 hours not flashtools wont detect it when I try to hold the back button while inserting the USB cable
Click to expand...
Click to collapse
if u have unlocked bootloader try to change ur kernel
and reinstall drives of ur phone maybe it can solve the problem that flashtools doesnt detect ur phone
raminta said:
if u have unlocked bootloader try to change ur kernel
and reinstall drives of ur phone maybe it can solve the problem that flashtools doesnt detect ur phone
Click to expand...
Click to collapse
But the screen is not even turning on. It's not responding to holding the back and power button
AkifMehmood said:
But the screen is not even turning on. It's not responding to holding the back and power button
Click to expand...
Click to collapse
Do you have working fastboot pull battery insert and then hold search key while plugin usb cable to computer if the led turns blue then you can flash another kernel !!
nakuk21 said:
Do you have working fastboot pull battery insert and then hold search key while plugin usb cable to computer if the led turns blue then you can flash another kernel !!
Click to expand...
Click to collapse
I tried but its not giving the blue led
OK....So here is my story and problem. About 2-3 months ago I was charging my phone and instead of charging it was losing the charge. I unplugged it from the charger and it would reboot itself. It showed low battery so I would connect it back to the charger and it would all of a sudden show full battery. After a while on the charger, I unplugged it, turned it off and then tried to turn back on but no response. I pressed power button with volume down button and nothing happened. So now I have been reading all kinds of threads of what I could possibly do and I have had no success. The phone was on the charger for about 2 days and the red light turned off. I finally downloaded Flash tool but it will not recognize my phone nor had it in the devices. I need help! I love my phone and can't send it for repair. If anyone can help, please let me know what I need to do. I also need help on drivers for Flash tool. Thank you!
If you can get your phone to boot
Let it fuly charge, then let it fully die untill it turns off then boot and fully charge
Your battey may have calibrated weird(xperias auto calibrate)
Also if that doesent work then try volume + power up, if your device is bricked this can take upto 45 mins untill it actualy forces off (3 buzzes in a row)
Try flashing then (and ensure the cable isnt plugged in when you do it)
Also ensure drivers are installed for your device (goolgle is your freind)
Sent from my LT26i using XDA Premium 4 mobile app
I have tried all of that stuff and I still don't get any response. The phone is currently on the charger. When I first plugged it in the red light was one and then started to blink and now is solid. I am unable to download ADB drivers cause my computer does not recognize my phone, not even thru pc companion.
You dont need your phone to install adb try googleing some (you may find installable Adb drivers for windows)
Well red LED? Anyway if it shows a red led when you plug in,
Try pluggin in while holding volume down, if you get a green Light that is good, search up a stock FTF for xperia ion and use flashtool to flash in flashmode (green led while plugged in after holding volume down (may be blue than thats bootloader mode try volume up)
If your ion still doesent boot then they may be a physical problem
Sent from my LT26i using XDA Premium 4 mobile app
Thank you for your help, i really appreciate you taking time to answer all my questions and helping me find things i could do for my phone. I tried holding the volume down button and plugging it into the wall charger and got no response. I also tried plugging into the computer with volume down button and still nothing. I will go and search for the drivers and stock ftf. Thank you
Same thing happened to my phone too while I was using a non stock charger. Things turned back to normal when I connected my phone back to my stock charger.
Sent from my Sony Xperia LT28at using xda app-developers app
Shortie71 said:
Thank you for your help, i really appreciate you taking time to answer all my questions and helping me find things i could do for my phone. I tried holding the volume down button and plugging it into the wall charger and got no response. I also tried plugging into the computer with volume down button and still nothing. I will go and search for the drivers and stock ftf. Thank you
Click to expand...
Click to collapse
flash a firmware ftf file through flashtool.......and are u using window 8 in ur pc???
I have windows vista. I tried downloading a stock ftf but it tells me that I have to sign up on some web page with a credit card and won't let me download. Very frustrating!!
mohit378 said:
flash a firmware ftf file through flashtool.......and are u using window 8 in ur pc???
Click to expand...
Click to collapse
I have windows vista. I tried downloading the stock ftf but it wanted me to register on some website with a credit card and it wouldn't let me download without. I'm Very FRUSTRATED!! Do you have any suggestions? My phone has been plugged into wall charger for over 24 hrs. and the red light has turned off. I don't know what to do now.
Shortie71 said:
I have windows vista. I tried downloading the stock ftf but it wanted me to register on some website with a credit card and it wouldn't let me download without. I'm Very FRUSTRATED!! Do you have any suggestions? My phone has been plugged into wall charger for over 24 hrs. and the red light has turned off. I don't know what to do now.
Click to expand...
Click to collapse
no not emma flashtool
search up xda fileserver
everyrhing you need is on there
Sent from my LT26i using XDA Premium 4 mobile app
Envious_Data said:
no not emma flashtool
search up xda fileserver
everyrhing you need is on there
Sent from my LT26i using XDA Premium 4 mobile app
Click to expand...
Click to collapse
I searched xda fileserver and I found a link for download and when I clicked on it it told me that the page could not be found. Any suggestions????
try this....http://forum.xda-developers.com/showthread.php?t=2338367.....hope this helps...
Shortie71 said:
I searched xda fileserver and I found a link for download and when I clicked on it it told me that the page could not be found. Any suggestions????
Click to expand...
Click to collapse
Okay I will try to help you here. I have had to do this a few times now and yes it sucks. When the light goes off you need to let it continue to charge. Eventually the device will start trying to boot the charging screen. Once it does this you need to hold the power and volume + just long enough for the screen to go off. It will look like it is bleeding out. As soon as it does this let go and do not let it buzz or you will have to start all over. Once you get the device to shut off you can try holding volume down while plugging the device into the computer and it should give you flash mode. Let it load drivers if it needs to and then try to set up your flash with flash tool.
Another option is to take the back off and disconnect the battery cable. Once you leave it off for a few seconds plug it back up and reassemble the device. It should now boot back up. At the least it will let you flash a ftf again.
Here is the link to all the stock ftf files. Checked the links and they are still good.
http://forum.xda-developers.com/showthread.php?t=1752345 :good:
I'd recommend unplugging the battery if you have access to the tools to do it. I have the at&t model as well. Once you get the flash mode on I'd recommend flashing the international lt28h version excluding the baseband. You'll keep your LTE support and get rid of at&t bloatware, later you can mess with build.prop to get it to say LT28i or LT28at if you prefer.
Thank you everyone for the help in trying to revive my xperia. I think I am going to give up for now being that I am not able to download what I need and my phone just stays on the charger with no progress. Even with the red led light out and on the charger for days on end, there is nothing. Again, Thank you and God Bless