I just bought an sony xperia x10 and i am new to moddig and flashing i had an htc hero and i rooted it and everything with no problem now i want to go from 1.6 to 2.1 on my experia x10 can comeone please help!!!!
waymon31 said:
I just bought an sony xperia x10 and i am new to moddig and flashing i had an htc hero and i rooted it and everything with no problem now i want to go from 1.6 to 2.1 on my experia x10 can comeone please help!!!!
Click to expand...
Click to collapse
This is the Easy stuff, you dont need root to go from 1.6 to 2.1
First go to the Sony Ericsson website and download two programs called Pc companion and Sony Ericsson Update Service (SEUS), located in support for X10
Then just install those two and follow instructions, you should now already installed the drivers for your x10 by going into flash mode
Now your Pc companion will alert you that there is an update for the x10. Click on that and just follow every step.
To Get 2.2 and over:
1) need to root - download either flashtool from Q&A thread or you can download SuperOneClick
2) Use either to root device - once rooted, reboot phone
3) Download busybox from the market and install
4) Once installed, your device is basically rooted and has xrecovery installed
5) you can reboot into xrecovery by tapping the back button several times when the sony ericsson logo has appeared
6) just install any of these custom roms available on this site and PLEASE READ THE INSTRUCTIONS FOR EACH ROM
7) you may have to flash different basebands for different roms- i will not explain every single step because you can find out by searching and reading these forums
8) just install any rom and reboot DONE!!!
thanks for the help im just stuck on 1 little step i cant seem to get the semc driver installed. any suggestions im using windows vista
waymon31 said:
thanks for the help im just stuck on 1 little step i cant seem to get the semc driver installed. any suggestions im using windows vista
Click to expand...
Click to collapse
It should just try to autoinstall when you plug your phone into usb and connect the first time if your on stock ROM.
Sent From My *Super Fly X10*
If I (or anyone for that matter!) help you, dont be afraid to press THANKS!
hey if you cant get the computer to read it, turn off your phone, unplug usb from phone, hold the BACK button WHILE plugging the usb into your computer. Keep hold of the back button until the computer has recognised it
xperiax10mods said:
This is the Easy stuff, you dont need root to go from 1.6 to 2.1
First go to the Sony Ericsson website and download two programs called Pc companion and Sony Ericsson Update Service (SEUS), located in support for X10
Then just install those two and follow instructions, you should now already installed the drivers for your x10 by going into flash mode
Now your Pc companion will alert you that there is an update for the x10. Click on that and just follow every step.
To Get 2.2 and over:
1) need to root - download either flashtool from Q&A thread or you can download SuperOneClick
2) Use either to root device - once rooted, reboot phone
3) Download busybox from the market and install
4) Once installed, your device is basically rooted and has xrecovery installed
5) you can reboot into xrecovery by tapping the back button several times when the sony ericsson logo has appeared
6) just install any of these custom roms available on this site and PLEASE READ THE INSTRUCTIONS FOR EACH ROM
7) you may have to flash different basebands for different roms- i will not explain every single step because you can find out by searching and reading these forums
8) just install any rom and reboot DONE!!!
Click to expand...
Click to collapse
thanks for your easy to follow tutorial it worked like a charm!!!!! i am so happy with my new phone its runs very fast!!!!!!!!!!!!!!!!! the pic quility is fantastic!!!!!!! thank again
Related
Im having some issues with my x10i that i put Nordic 2.1 on a few weeks ago.
Some apps fail to open every now and then, and the stock android alarm doesnt work (the app seems fine, but when the alarm goes off there is no noise, yes ive tried volume etc, yes ive tried downloading a 3rd party alarm)
So id like to put a fresh 2.1 rom on, ive tried these:
http://forum.xda-developers.com/showthread.php?t=825675
http://forum.xda-developers.com/showthread.php?t=827065
But i cant get them to work, the .bat files of the flasher fail at the connection stage (2nd step after selecting windows vr)
Im having a lot of problems,, main one is that i cant install the driver for the x10 in flash mode, windows cant find the driver.
If anyone could kindly tell me exactly what i have to do, starting from connecting the x10 to a virgin win xp (no drivers installed for the x10), id be happy to donate $20USD into your paypal account
Ok let me see if I can help you a title here....
1. Root your device using this http://forum.xda-developers.com/attachment.php?attachmentid=453551&d=1291188836 its really simple and fast...
2. Once you've root your device use this application http://www.mediafire.com/?ewf9e41ybw2eazz
to install the Xrecovery menu on your phone... It's very simple as well....
3. Download this file http://hotfile.com/dl/87564842/7e80127/SE_update-shipped-full.zip.html
and save it to your SD Card into any folder you want, I recommend you to do it in a new one with any name you want, that will make easier the next step...
4. Reboot your phone and right after the white letters with Sony Ericsson logo appear press the back key a few times , if the Xrecovery menu has been installed correctly you will see a weird image of and Android with troll face lol... and a bunch of options like reboot, install update zip etc....
5. Choose Install Custom Zip and then go to the folder you created with the downloaded zip file... from step 3... Then select it and click in yes... Wait for a few minutes and when the phone tells you done click on reboot and wait for the firmware to load...
6. Enjoy the SE 2.1 firmware with JIT enabled.
7. Read your inbox...
Jimmy
Sent from my AOSP on Xperia (Guatemala)
Siddy1200 said:
If anyone could kindly tell me exactly what i have to do, starting from connecting the x10 to a virgin win xp (no drivers installed for the x10)
Click to expand...
Click to collapse
Put XP in safemode, run seus, put phone in flashmode when prompted so it installs the drivers, try the flashtool again, while in safemode on XP.
Or if you'd rather go for something simpler.. try rooting (if you haven't already) then follow this - http://forum.xda-developers.com/showthread.php?t=828163 to flash to global generic.
i cant even get the phone to tunr on atm, but if i get it to work ill send $20 ur way jimbo, thanks everyone
jimbo, actually your links are broken so i cant follow your guide cause u just say "use this application" - but link is down
ok, i found a new link for that one, but i cant install it cause when i connect my phone to the pc, it just starts charging, it wont mount the sd??
"If anyone could kindly tell me exactly what i have to do, starting from connecting the x10 to a virgin win xp..."
ok i put xrecovery on the sd card through a pc, installed the app and ran the app, clicked Install Xrevovery, error
already have root access, xreovery was granted superuser, but doesnt work
tried the new root app just in case, it just switched off my phone... none of this works
does anyone live in Sydney and can do it for me????
Have you installed BusyBox too?
i rooted my phone with cyangon gingerbread v 5 then i download the x-recovery 0.3 release from here http://forum.xda-developers.com/showthread.php?t=974392
now my phone wont start or enter the x-recovery...when i switch it on it just stays at the sony ericsson
plz help!!!
tarekdibis said:
i rooted my phone with cyangon gingerbread v 5 then i download the x-recovery 0.3 release from here http://forum.xda-developers.com/showthread.php?t=974392
now my phone wont start or enter the x-recovery...when i switch it on it just stays at the sony ericsson
plz help!!!
Click to expand...
Click to collapse
download with this forum SuperOneClick
Run it and klick to RootShell (only in this session) after
connect to you device with adb in root
adb shell
su
then remove files and try reboot, and install this app with auto mode
adb install xrecovery.apk
thats all.
p.s. why are you add post before read the forum? jnly 2 post down i answer for you theme !
http://forum.xda-developers.com/showthread.php?t=1001960
tried this way and it didn't work nor Sony Ericsson PC Companion the phone wont connect to pc but after a lot of search i found the solution by "update service" program from Sony Ericsson it reinstalled the software.
thanks for your help.
tarekdibis said:
tried this way and it didn't work nor Sony Ericsson PC Companion the phone wont connect to pc but after a lot of search i found the solution by "update service" program from Sony Ericsson it reinstalled the software.
thanks for your help.
Click to expand...
Click to collapse
no mutch!
the are many people asked this question on this forum, but any body whant use option "find"
You wellcome!
please help mee.. i got trouble with my x10 mini pro.. i tried to install cyanogen mod .. but when i reboot ..... my phone boot looping... what should i do
cempe said:
please help mee.. i got trouble with my x10 mini pro.. i tried to install cyanogen mod .. but when i reboot ..... my phone boot looping... what should i do
Click to expand...
Click to collapse
when you see the sony ericsson boot up enter xrec and reinstall... if can't connect your phone to pc and reflash using SEUS or SE PC companion...
Well, this is the mini forum, not the mini pro. So if you took a rom from this section it's probably not compatible with your phone.
Also, use the search function. It's there for a reason.
Lots of people have problems with bootloops, just browse the forum for a while and you will most likely find detailed help for your problem.
boot in xrecovery go to advanced options -> wipe dalvik cache
1. Replace your battery or press both power button and home button
2. switch on phone
3. if see SE logo, press back button 1000x until xrecovery window show up
4. restore your back up or try factory reset
5. reboot
if cant boot to xrecovery then your phone is totally brick...
repair it using SEUS... and start all over again
Yeah, here's the Mini Forum, not Mini *PRO*.
Use the ROMs from here
Repair a phone isn't a hard thing. If you've made a backup before install the rom just restore. You can use SEUS (aka Sony Ericsson Update Service) to restore the phone. Try to reinstall the ROM. Make sure you followed all the steps during the ROM instalation.
Sorry for bad english.
boot looping problem
the same problem is with me also .... the phone is continuosly boot loooping..... i didnt take a backup also using xrecovery ...i cannot connect my phone to sony ericsson pc suite companion also to reinstall the software ....plz plz give me some idea to get off this problem.....
karthickpoy said:
the same problem is with me also .... the phone is continuosly boot loooping..... i didnt take a backup also using xrecovery ...i cannot connect my phone to sony ericsson pc suite companion also to reinstall the software ....plz plz give me some idea to get off this problem.....
Click to expand...
Click to collapse
Don't use PC companion, download SEUS (Sony Ericsson Update Service), install it and follow the instructions.
thanks all .. that help full advice.. im sorry if i use this room.. because i was really confuse yesterday....
cempe said:
thanks all .. that help full advice.. im sorry if i use this room.. because i was really confuse yesterday....
Click to expand...
Click to collapse
No problem, it's normal for first time. Just pay more attention next time. What did you do to fix?
Hi chaps,
After trying a gingerbread rom and finding it too slow, I see most other roms require a custom kernel for best performance (and being able to use most other roms!)
Anyway, I'm running through the tutorials in the stickied Guide in this forum and during the unlocking the bootloader instructions it keeps telling me to switch my phone off.
Now it doesn't mention having the phone plugged into the PC at any point in that section but I assume you have to for the SE Tweaker tool to work .
My problem is that in the first couple of steps I'm told to turn my phone off yet as it's connected to the PC, it keeps switching back on to charge ie. it's not staying off.
So naturally me being afraid of bricking my phone and it being a first time for me, I haven't progressed past this part. Any help or guidance would be much appreciated.
Thanks
LostHH said:
Hi chaps,
After trying a gingerbread rom and finding it too slow, I see most other roms require a custom kernel for best performance (and being able to use most other roms!)
Anyway, I'm running through the tutorials in the stickied Guide in this forum and during the unlocking the bootloader instructions it keeps telling me to switch my phone off.
Now it doesn't mention having the phone plugged into the PC at any point in that section but I assume you have to for the SE Tweaker tool to work .
My problem is that in the first couple of steps I'm told to turn my phone off yet as it's connected to the PC, it keeps switching back on to charge ie. it's not staying off.
So naturally me being afraid of bricking my phone and it being a first time for me, I haven't progressed past this part. Any help or guidance would be much appreciated.
Thanks
Click to expand...
Click to collapse
Turn your phone off and leave it disconnected from your PC
When the unlock procedure asks you to plug in your phone, press the back-button while you connect the usb-cable to your phone.
This way you enter flash-mode, which is what the tools require.
SmG67 said:
Turn your phone off and leave it disconnected from your PC
When the unlock procedure asks you to plug in your phone, press the back-button while you connect the usb-cable to your phone.
This way you enter flash-mode, which is what the tools require.
Click to expand...
Click to collapse
I can't seem to enter flash mode :/
I hold the back button and connect the phone to the pc. Initially it installed some flash driver onto the pc and then booted up as normal.
Now it just boots up as normal no matter how long I hold the back button (throughout the whole process so far)
Does having xrecovery have anything to do with this?
Thanks
Edit - my antivirus was quarantining s1tool.exe! derp.
Edit 2 - Success! Thanks chaps. You're all pretty cool in my books
please i need help to enable network on my phone
i went through the process of intalling minicm7.2 on my xperia x10 mini pro.
After unlocking my bootloader and intalling the rom, i cannot gain access to my network provider.
Please i need help to get the network back on my xperia x10 mini pro.
I ve relock the bootloader and restored the stock rom 2.1.1.a.0.6 but i still dont get access to my network.
PLEASE I NEED HELP.....
kingice85 said:
i went through the process of intalling minicm7.2 on my xperia x10 mini pro.
After unlocking my bootloader and intalling the rom, i cannot gain access to my network provider.
Please i need help to get the network back on my xperia x10 mini pro.
I ve relock the bootloader and restored the stock rom 2.1.1.a.0.6 but i still dont get access to my network.
PLEASE I NEED HELP.....
Click to expand...
Click to collapse
Did you relock the bootloader before you restored stock rom?
please help
SmG67 said:
Did you relock the bootloader before you restored stock rom?
Click to expand...
Click to collapse
yes i relocked the bootloader before i restored to the SE original stock rom...
I still cant get access to the sim network but can see the sim tool kits..pls help me
solotion
kingice85 said:
i went through the process of intalling minicm7.2 on my xperia x10 mini pro.
After unlocking my bootloader and intalling the rom, i cannot gain access to my network provider.
Please i need help to get the network back on my xperia x10 mini pro.
I ve relock the bootloader and restored the stock rom 2.1.1.a.0.6 but i still dont get access to my network.
PLEASE I NEED HELP.....
Click to expand...
Click to collapse
I have had problem like yours on x10i .
but about solotion:
just flash e15i nAa kernel file to your phone by flash tool before this phone must be rooted.100% worked for me .sorry about my english.:laugh:
Help
Hi,
i don't know if this comes under this section also,
i lost the post that i was using to update my x10 mini pro from 2.1 to 2.3 after my pc freezed and restarted.
So my SE finished the update but it's stuck on the Sony Ericsson text on boot up in faint brightness.
I used flshtool 0.9.0.0
rooted the phone and installed busy box.
restarted the phone with the blue screen menu a selected the NAa kernel from SD to load.
After that rebooted the phone then sony ericsson text came very bright then it starts to faint to minimum and nothing else happens.
If i connect flashtool i will get the following:
02/046/2012 14:46:55 - INFO - Device disconnected
02/047/2012 14:47:16 - INFO - Device connected with USB debugging off
02/047/2012 14:47:16 - INFO - For 2011 devices line, be sure you are not in MTP mode
02/047/2012 14:47:24 - INFO - Device disconnected
02/047/2012 14:47:26 - INFO - Device connected with USB debugging on
02/047/2012 14:47:27 - INFO - Connected device : U20
02/047/2012 14:47:27 - INFO - Installed version of busybox : BusyBox v1.19.4-cm7 bionic (2012-02-04 22:27 +0100) multi-call binary.
02/047/2012 14:47:27 - INFO - Android version : 2.3.7 / kernel version : 2.6.29
i even tried SEUS but nothing happens it would ask to reboot in flashmode and the device will enter flashmode and nothing happens.
also tried to restart with the blue screen menu by pressing power and the back button multiple times and back with volume + and - nothing occurs.
I downloaded ver 0.9.1.0
and tried the force root and here is the log:
Any solution ?
Thanks in advance.
nabilaj said:
Hi,
i don't know if this comes under this section also,
...
Any solution ?
Thanks in advance.
Click to expand...
Click to collapse
You have to flash the kernel from flashtool:
Put the kernel zipfile in the /firmwares folder where you installed flashtool
Choose the flash-button
Choose the kernel
Connect your phone in flashmode and it will be done (if your bootloader is unlocked)
You can not install a kernel from the sd-card using the CWM (blue screen) menu
The reason your phone doesn't boot up is because your ROM and Stock kernel are not compatible
If you're succesful in flashing the kernel, you should be fine.
There is no need to root your phone before you flash the kernel, and the ROM is pre-rooted.
stuck on text sony erricson nothing else can be done
Thank you for your reply,
i'm not able to flash anything on the device.
getting Error Flashing. Aborted.
please see the logfile of flashtool 0.9.1.0
and i'm trying to load U20_nAa-14_2.6.29.6-nAa-14.ftf
if i'm doing wrong tell me !
Please have a look at the log file.
Why i'm getting permission denied
and FTError
Thank you in advance.
SmG67 said:
You have to flash the kernel from flashtool:
Put the kernel zipfile in the /firmwares folder where you installed flashtool
Choose the flash-button
Choose the kernel
Connect your phone in flashmode and it will be done (if your bootloader is unlocked)
You can not install a kernel from the sd-card using the CWM (blue screen) menu
The reason your phone doesn't boot up is because your ROM and Stock kernel are not compatible
If you're succesful in flashing the kernel, you should be fine.
There is no need to root your phone before you flash the kernel, and the ROM is pre-rooted.
Click to expand...
Click to collapse
nabilaj said:
Thank you for your reply,
i'm not able to flash anything on the device.
getting Error Flashing. Aborted.
please see the logfile of flashtool 0.9.1.0
and i'm trying to load U20_nAa-14_2.6.29.6-nAa-14.ftf
if i'm doing wrong tell me !
Please have a look at the log file.
Why i'm getting permission denied
and FTError
Thank you in advance.
Click to expand...
Click to collapse
In your original post you said you tried to install the kernel from sd-card using the CWM menu, which is impossible
I suppose you have to unlock the bootloader first, in flashtool it's under the plugins-section.
But you first have to make sure it is safe or you can brick your device doing that
Go find the post where you got the kernel from, it will have a link to the bootloader unlock tutorial.
Use that to get instructions on how to know if your device is safe to unlock.
Then use the bootloader-unlock in flashtool's plugin-menu to unlock the bootloader.
Then flash the kernel.
stuck on text sony erricson nothing else can be done
Yes i did the root and unlocked the bootloader.
and loaded the kernel from SD card using CWM menu.
It was asking to load the kernel from SD card,
i wish i could boot with CWM to give you the exact steps.
The device was i guess able to work but i read somewhere in forum to try rooting again using force psneuter
and that was when things changed on the device cause i used to see in Clean Root icon in flashtool lot of apps and commands in red now only ls: in red is there!!
Regards
SmG67 said:
In your original post you said you tried to install the kernel from sd-card using the CWM menu, which is impossible
I suppose you have to unlock the bootloader first, in flashtool it's under the plugins-section.
But you first have to make sure it is safe or you can brick your device doing that
Go find the post where you got the kernel from, it will have a link to the bootloader unlock tutorial.
Use that to get instructions on how to know if your device is safe to unlock.
Then use the bootloader-unlock in flashtool's plugin-menu to unlock the bootloader.
Then flash the kernel.
Click to expand...
Click to collapse
nabilaj said:
Yes i did the root and unlocked the bootloader.
and loaded the kernel from SD card using CWM menu.
It was asking to load the kernel from SD card,
i wish i could boot with CWM to give you the exact steps.
The device was i guess able to work but i read somewhere in forum to try rooting again using force psneuter
and that was when things changed on the device cause i used to see in Clean Root icon in flashtool lot of apps and commands in red now only ls: in red is there!!
Regards
Click to expand...
Click to collapse
You can NOT flash the kernel from the sd-card
Only from your PC, and your phone does not need to be rooted for that, you only need an unlocked bootloader.
stuck on text sony erricson nothing else can be done
Ok I understood that part.
My question is how to fix my device if possible, i made a mistake somewhere there and don't recall cause i gave up after i looded the rom i think from SD card.
it's over 2 weeks and now i have some free time to try to fix it with the hope of getting someone here on in the forum to help me out.
Thanks
SmG67 said:
You can NOT flash the kernel from the sd-card
Only from your PC, and your phone does not need to be rooted for that, you only need an unlocked bootloader.
Click to expand...
Click to collapse
nabilaj said:
Ok I understood that part.
My question is how to fix my device if possible, i made a mistake somewhere there and don't recall cause i gave up after i looded the rom i think from SD card.
it's over 2 weeks and now i have some free time to try to fix it with the hope of getting someone here on in the forum to help me out.
Thanks
Click to expand...
Click to collapse
Try to do a repair with SEUS or PC Companion
Then flash the kernel
Boot into the CWM menu (included in the custom kernel)
Then flash the ROM you want
stuck on text sony erricson nothing else can be done
I tried,
start SEUS
1-Support Zone
2-Start
3-Phone software update, Start
will get a message could not find phone (repair phone)
will press on repair phone.
4-Phone software update, continue
5-Personal data will be lost tick the box ( i understand that my personal ....) next
6-Please select your phone ( will select U20i) next
7-it will ask to put the phone in flashmode ( will put my phone in flash mode and wait ) NOTHING happens
My phone will boot normally after waiting but stuck on the Sony Ericsson text.
What next ?
once i plug it's pluged it will ask to mount USB card
SmG67 said:
Try to do a repair with SEUS or PC Companion
Then flash the kernel
Boot into the CWM menu (included in the custom kernel)
Then flash the ROM you want
Click to expand...
Click to collapse
nabilaj said:
I tried,
start SEUS
1-Support Zone
2-Start
3-Phone software update, Start
will get a message could not find phone (repair phone)
will press on repair phone.
4-Phone software update, continue
5-Personal data will be lost tick the box ( i understand that my personal ....) next
6-Please select your phone ( will select U20i) next
7-it will ask to put the phone in flashmode ( will put my phone in flash mode and wait ) NOTHING happens
My phone will boot normally after waiting but stuck on the Sony Ericsson text.
What next ?
once i plug it's pluged it will ask to mount USB card
Click to expand...
Click to collapse
hmm, weird, normally the only problem there is that SEUS says there's no firmware available Keep pressing the back-button till it actually starts flashing.
stuck on text sony erricson nothing else can be done
i tried can't feel anymore with my figure of over using it
SmG67 said:
hmm, weird, normally the only problem there is that SEUS says there's no firmware available Keep pressing the back-button till it actually starts flashing.
Click to expand...
Click to collapse
hi guys, I am a new user from Italy.
I would like to download and reistall the original firmware (android 2.3.3) on my xperia x10i.
I am sorry but I am not an expert, thus I need a guide to follow step by step (idiot proof ).
Again I am sorry if this thread already exists somewhere but I am not able to find it or to understand that it could be useful for me.
Many thanks
enzmni said:
hi guys, I am a new user from Italy.
I would like to download and reistall the original firmware (android 2.3.3) on my xperia x10i.
I am sorry but I am not an expert, thus I need a guide to follow step by step (idiot proof ).
Again I am sorry if this thread already exists somewhere but I am not able to find it or to understand that it could be useful for me.
Many thanks
Click to expand...
Click to collapse
-Download frameware 2,3,3 (it's in ftf extension,if not so rename it!)
-Download flash tools pc app (Linux, windows) then install
-Put frimware.ftf to frimware folder of flashtools(it installs by default at drive c:/flashtools)
-turn off your phone
-run flashtools then press lightning button, & choose flash-mode
-select the frimware & press next
-you'll be asked to attaching your phone ,so hold back button then pull USB cable in the phone
-flashtools will do the rest of flashing automatically
Then you can turn it on
#drivers should be installed
#wrong frimware = hard brick
(If this is hard you can use pcc to repair & update your phone to the lates frimware)
Sent for xda via tapatalk
# always wear your seat belt as it saved my life yesterday :beer:
enzmni said:
hi guys, I am a new user from Italy.
I would like to download and reistall the original firmware (android 2.3.3) on my xperia x10i.
I am sorry but I am not an expert, thus I need a guide to follow step by step (idiot proof ).
Again I am sorry if this thread already exists somewhere but I am not able to find it or to understand that it could be useful for me.
Many thanks
Click to expand...
Click to collapse
In pc companion when you'll connect your phone it will check for updates and if not available(which probably won't be if you use gb based rom) click repair and then you can follow instructions on pc companion
Sent from my X10i using xda app-developers app
download generic firmware here : forum.xda-developers.com/showpost.php?p=28235376&postcount=2 choose your region then use flashtool, guide here : forum.xda-developers.com/showthread.php?t=928343
enzmni said:
hi guys, I am a new user from Italy.
I would like to download and reistall the original firmware (android 2.3.3) on my xperia x10i.
I am sorry but I am not an expert, thus I need a guide to follow step by step (idiot proof ).
Again I am sorry if this thread already exists somewhere but I am not able to find it or to understand that it could be useful for me.
Many thanks
Click to expand...
Click to collapse
Hi and welcome to xda!
If you wish to revert back to the stock GB firmware this is the easiest way if you to do so:
1. Turn your device off. If you for some reason can't turn your phone off properly then pull the battery out and wait 10 seconds.
2. If you took your battery out then put it back in. Do not turn your phone on and open SEUS (Sony PC Companion) on your PC (you can download it from the Sony website or simply google it).
3. Click on Support Zone > Phone / Tablet Software Update > repair my phone / tablet > follow instructions and connect the phone in flashmode when asked for (it will tell you how to do that).
4. Wait till SEUS does it thing and tells you that everything is successfully done. DO NOT DISCONNECT THE PHONE FROM YOUR PC WHILE MAKING A SOFTWARE REPAIR!
5. You should be able to use your phone with the stock GB ROM installed.