downgrade XSP from 4.3 to 4.1

headache59 · Feb 22, 2014

azhar.munshi said:
i am stuck on boot screen
again & again sony, xperia logo & boot screen is coming but phone is not getting boot

i had downgrade my phone from 4.3 to 4.1.2
please help urgently

Azhar

---------- Post added at 09:57 AM ---------- Previous post was at 09:00 AM ----------

please someone reply how to i shutdown my phone

if i am making downgrade from 4.3 to 4.1.2
which option should i select for flash tool

system , kernel, baseband, uncategorised , fota, partition, ta

please reply urgently

Azhar

I tried a couple of times (downgrade to 257 "kernel" only) and always getting into a bootloop at startup (sony logo repeating) - the flash seems successful.
Each time I managed to power off and re-flash with the 266 kernel to recover.

Edit: my mistake. when I had flashed the 257 kernel, I was supposed to reboot the device in debugging mode (press vol-up while connecting the USB cable - instead I mistakenly tried to reboot XSP normally] - still when it came to using the exploit v18, the program hang ('device not connected')

L3oRaid3n · Feb 23, 2014

Can you give me the link for C5302 plss...

mrjraider · Feb 23, 2014

Check this thread: http://xdaforums.com/showthread.php?t=2311964

Cheers

L3oRaid3n · Feb 23, 2014

mrjraider said:
Check this thread: http://xdaforums.com/showthread.php?t=2311964

Cheers

Thanks bro...I will try this

sxp25 · Feb 23, 2014

how to solve "No loader found for this device" error in flashtool?
Actually,i flashed 4.3 a week ago but now i want to switch back to 4.1
but while flashing 4.1, this error shows up
help plz

Naique27 · Feb 25, 2014

sxp25 said:
how to solve "No loader found for this device" error in flashtool?
Actually,i flashed 4.3 a week ago but now i want to switch back to 4.1
but while flashing 4.1, this error shows up
help plz

Download latest flashtool from here http://www.flashtool.net/download.php and try again..

sxp25 · Feb 25, 2014

I've been trying to download it from the last 4 days.
but everytime an error shows up.
But wait,now it started downloading..
Thanx bro

Naique27 · Feb 25, 2014

Welcome buddy... :thumbup:

XSP <3

M7mdA7md7sein · Mar 8, 2014

donk165 said:
No, you just need flashtool and the FTF file of 4.1 for your region, I have my Generic UK .254 FTF uploading to google drive now, ill post the link once its uploaded.

Sorry but what would happen If I downgraded from 4.3 Middle East to 4.1.2 Central Europe ?

Thanks

masesaco · Mar 30, 2014

antkalaitzakis96 said:
is your phone C5303 or C5302/C5306?

Mine is C5306, is it necessary a particular download?

antkalaitzakis96 · Mar 30, 2014

masesaco said:
Mine is C5306, is it necessary a particular download?

yes, C5306 works on different bands than C5303 and that means that you will have to find a suitable ftf to flash, do you want the 4.1 ftf?

masesaco · Mar 31, 2014

antkalaitzakis96 said:
yes, C5306 works on different bands than C5303 and that means that you will have to find a suitable ftf to flash, do you want the 4.1 ftf?

Yes, because this new 4.3 upgrade is terrible.... to play a game i must charge the phone at same time, and even so, the battery drains faster than charges.
If you can provide a 4.1 link, i appreciate.

And a step by step would be great, as I'm a rookie on these matters

My phone has a locked bootloader (and can't be unlocked)

Thanks in advance

dipal_roy · Apr 6, 2014

Wnat to downgrade my Xperia SP C5302 from 4.3 to 4.1.2

I have a xperia sp c5302. After i upgraded it to 4.3 its lagging too much, working like crap. I want to downgrade it to 4.1.2 as i had it since purchase and i want to do it in such a way so that warranty dont go void. Guys please help me.

Thanks in advance
Dipal

---------- Post added at 08:39 PM ---------- Previous post was at 08:11 PM ----------

Need Stock ftf for SONY Xperia sp c5302 4.1.2 India to flash my phone. I found all previous links dead...Someone please share.

Tkanks in advance

saeid.hariri · Apr 6, 2014

dipal_roy said:
I have a xperia sp c5302. After i upgraded it to 4.3 its lagging too much, working like crap. I want to downgrade it to 4.1.2 as i had it since purchase and i want to do it in such a way so that warranty dont go void. Guys please help me.

Thanks in advance
Dipal

---------- Post added at 08:39 PM ---------- Previous post was at 08:11 PM ----------

Need Stock ftf for SONY Xperia sp c5302 4.1.2 India to flash my phone. I found all previous links dead...Someone please share.

Tkanks in advance

if you using 0.266 firmware try to upgrade it to 1.201 it might solve ur issue but if u didn't satisfied with what u get
u have to download a 4.1.2 .ftf file and flash it with flash tools (there are instructions to how to use it)
remember to get 5302 rom
warranty won't void unless u unlock ur bootloader ot give them ur device rooted and none of them needed for ur case

india 2.254 : http://d-h.st/hCj

antkalaitzakis96 · Apr 6, 2014

masesaco said:
Yes, because this new 4.3 upgrade is terrible.... to play a game i must charge the phone at same time, and even so, the battery drains faster than charges.
If you can provide a 4.1 link, i appreciate.

And a step by step would be great, as I'm a rookie on these matters

My phone has a locked bootloader (and can't be unlocked)

Thanks in advance

sorry for the delay, I don't know if you figured out on your own. Anyway.
here is the link of the ftf you will need http://xdaforums.com/showpost.php?p=48889300&postcount=65
download it and follow my guide http://xdaforums.com/showpost.php?p=50356952&postcount=8

masesaco · Apr 6, 2014

antkalaitzakis96 said:
sorry for the delay, I don't know if you figured out on your own. Anyway.
here is the link of the ftf you will need http://xdaforums.com/showpost.php?p=48889300&postcount=65
download it and follow my guide http://xdaforums.com/showpost.php?p=50356952&postcount=8

1) download this ftf https://docs.google.com/file/d/0B986...hIMmJnWW8/edit ( thanks to @CorePrideX8 )
2) download the flashtool from here http://www.flashtool.net/download.php or https://unrestrict.li/flashtool
3) install the flashtool and navigate to the folder where flashtool was installed
3)open "drivers" folder and install the last 2(flashmode and fastboot)
4)transfer the downloaded ftf to the folder "firmwares"
5)open flashtool and press the thunder button..then choose flashmode
6)you will see the firmware on the left, choose it and press the flash button..wait until a message pop up saying to connect your phone
7)turn the phone off and while pressing the volume down button connect the usb(the illumination bar will light green)

On your guide,the part 3 is a little confuse for me.
That means to install what?
On step 3, there's nothing like that on the "last 2" items that look like flash mode or flash tool...
Also , on that tab, doesn't appear the option for Xperia SP

antkalaitzakis96 · Apr 6, 2014

masesaco said:
1) download this ftf https://docs.google.com/file/d/0B986...hIMmJnWW8/edit ( thanks to @CorePrideX8 )
2) download the flashtool from here http://www.flashtool.net/download.php or https://unrestrict.li/flashtool
3) install the flashtool and navigate to the folder where flashtool was installed
3)open "drivers" folder and install the last 2(flashmode and fastboot)
4)transfer the downloaded ftf to the folder "firmwares"
5)open flashtool and press the thunder button..then choose flashmode
6)you will see the firmware on the left, choose it and press the flash button..wait until a message pop up saying to connect your phone
7)turn the phone off and while pressing the volume down button connect the usb(the illumination bar will light green)

On your guide,the part 3 is a little confuse for me.
That means to install what?
On step 3, there's nothing like that on the "last 2" items that look like flash mode or flash tool...
Also , on that tab, doesn't appear the option for Xperia SP

View attachment 2672282

I think you can go a bit lower..what are the last 2 options?

masesaco · Apr 7, 2014

antkalaitzakis96 said:
I think you can go a bit lower..what are the last 2 options?

Just the ones on the picture i added

http://dl.xda-developers.com/attach...dba4b1c0/5341e1a2/2/6/7/2/2/8/2/flashtool.png

dipal_roy · Apr 8, 2014

I've done

Thanks. I got the 4.1.2 IN version firmware, And now my work is done. Thanks

. I will share that file in my google drive...

antkalaitzakis96 · Apr 8, 2014

masesaco said:
Just the ones on the picture i added

http://dl.xda-developers.com/attach...dba4b1c0/5341e1a2/2/6/7/2/2/8/2/flashtool.png

Skip the first steps and go to the 4th one

EDIT: oops, the drivers we want are the first two, not the last two

downgrade XSP from 4.3 to 4.1

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