[Q] Downgrade from Jellybean to ICS - Sony Xperia S, Acro S, Ion

Hi guys, so I flashed the PAC rom but don't really like the feel behind it and miss my old ROM.
I'm just trying to downgrade, but I found that flashing my old ICS ROMs in recovery won't work. I really don't want to use the flashtool, but if I have to, I will. Flashtool has just given me problems before and I don't want to brick my S.
Any ideas on how to downgrade from PAC (Jellybean) to ICS again using recovery mode?
P.S. Tried searching, not much came up related to the Xperia S so I wanted to ask.

Sv: [Q] Downgrade from Jellybean to ICS
Recovery... As of you have a backup? If not then flash ics kernel and install ics rom...
In this order..
Flash ics kernel
Wipe all.. System, data,cache, dalvik
Install ics rom
Reboot
Works for me
Sent from my Xperia S using xda app-developers app

DenmarkRootN00b said:
Recovery... As of you have a backup? If not then flash ics kernel and install ics rom...
In this order..
Flash ics kernel
Wipe all.. System, data,cache, dalvik
Install ics rom
Reboot
Works for me
Sent from my Xperia S using xda app-developers app
Click to expand...
Click to collapse
I do have a NANDroid backup (I think that's what they're called, anyway) but of course that gives me an error when flashing (something about the boot image.)
But I skipped the first step that you mentioned when flashing the ICS ROMs, which is to Flash the ICS Kernel.
Thanks! Worked.

I agree. Flashtool just gives problems.

PeacefulCalamity said:
I do have a NANDroid backup (I think that's what they're called, anyway) but of course that gives me an error when flashing (something about the boot image.)
But I skipped the first step that you mentioned when flashing the ICS ROMs, which is to Flash the ICS Kernel.
Thanks! Worked.
Click to expand...
Click to collapse
Which backup you have cwm or twrp.?
U want to use ICS than try cm9.1.that's better.
Sent from my Xperia S using xda premium

Flashtool just works better on Linux... It will produce lots of redundant files on Windows. So if you only have Windows, try using a virtual machine. It works fine with VMware workstation.
Just use Flashtool to install official ICS first, and then install your custom ROM.

Related

A little ICS flashing help

A bit confused...
I'm on CM9 alpha 1 and want to get to alpha 2
The CM9 install page says to just use CWM5 to flash the ROM and I dont have to wipe anything...
But I see several things that seem to say flashing ICS stuff through CWM can brick the phone...
Some clarification please?
number 1 do not use rom manager!
number 2 it safe to flash using clockwork mod, upgrading ics roms. but to go back to gingerbread you need to use Odin.
at least that's what I understand. if I'm wrong someone please correct me
Sent from my SPH-D710 using Tapatalk
davidstjohn1 said:
number 1 do not use rom manager!
number 2 it safe to flash using clockwork mod, upgrading ics roms. but to go back to gingerbread you need to use Odin.
at least that's what I understand. if I'm wrong someone please correct me
Sent from my SPH-D710 using Tapatalk
Click to expand...
Click to collapse
Ok, that's sort of what I was thinking but I think I'll wait for at least another person to confirm... since you didn't sound real sure of it.. but thanks for the input
im on calks rom and to upgrade from 1.3 to 1.4 i only deleted the cache and dalkiv (sp?) cache and installed the rom and worked great.
blakjak220 said:
Ok, that's sort of what I was thinking but I think I'll wait for at least another person to confirm... since you didn't sound real sure of it.. but thanks for the input
Click to expand...
Click to collapse
It's not safe to do any thing with a ics kernel .even wiping data cache etc can brick a phone ..... Always use A GB kernel to flash anything until we get source and they can fix it.... U can use mobile Odin to flash the el26 cwm kernel and then flash the rom without wiping data .... Make sure to flash rom twice and then flash gapps and you are good ....
Sent from my SPH-D710 using Tapatalk 2 Beta-5
omargs7 said:
im on calks rom and to upgrade from 1.3 to 1.4 i only deleted the cache and dalkiv (sp?) cache and installed the rom and worked great.
Click to expand...
Click to collapse
AOSP roms are quite a bit different then TW roms . Also I don't recommend wiping on ICS unless you like shiny bricks
xST4T1K said:
AOSP roms are quite a bit different then TW roms . Also I don't recommend wiping on ICS unless you like shiny bricks
Click to expand...
Click to collapse
Are you saying dont wipe anything while you have an ICS ROM installed... or just don't try to wipe when you have the ICS recovery installed?.. Like if I have an ICS ROM installed and flash back to an EL29 kernel, I can wipe then right?
blakjak220 said:
Are you saying dont wipe anything while you have an ICS ROM installed... or just don't try to wipe when you have the ICS recovery installed?.. Like if I have an ICS ROM installed and flash back to an EL29 kernel, I can wipe then right?
Click to expand...
Click to collapse
yes in theory with a gb based kernel you should be able to wipe but I personally recommend odin'ing a full gb from and kernel then using recovery. I also recommend using calk's wipe zips because they seem to be much safer than CWM wiping directly.
Sent from my SPH-D710 using Tapatalk 2

Touchscreen not working on stable CM9 FXP133

I installed the stable cm9..flashed the fxp133 kernel..the installation went smooth but my screen touch function is lost..Any ideas??
Eventually restoring to the stock kernel with JJ hybrid..and yeah the touch is working with this one. So is the problem cos of the kernel or the ROM??
I ll tell the sequence which i followed..let me know where i went wrong..i downloaded the ROM, extracted the boot.img, copied the original cm9 zip into the root of SD..used fastboot mode of flashtools to flash the kernel boot.img..then went into CWM..wiped out SD data..then cache..and then dalvik..and then proceeded to install zip from sd..it installed fine..and then i rebooted..it showed d FXP kernel logo and then CM9 bootscreen and then it loaded like it should..BUT the touchscreen isnt working at all..the hardware keys-power and back i checked were working but not the touchscreen..
Where did I go wrong..i am on baseband -72..bootloader unlocked..
You've installed correctly. Possibly a corrupt download, try re-downloading the zip.
sinkster said:
You've installed correctly. Possibly a corrupt download, try re-downloading the zip.
Click to expand...
Click to collapse
I downloaded both official stable CM9 as well as the FXP one on uploaded.to...tried with each of them but with the same result..both cant be corrupt n it wouldnt have extracted if it was a corrupt download anyways..m still wondering whats wrong..
Also I flashed doomkernel and tried installing..again the same..touchscreen still doesnt work..aarghh..
Flash the kernel, wipe data, system, cache, dalvik, battery stats and flash cm9.
It should work...
Sent from my Arc S using xda premium
I did all that but the stupid touch screen issue still persists..wait..i didn't clear battery stats..but do u think that actually might create such an issue?
Sent from my LT18i using xda app-developers app
Braayhaan said:
Flash the kernel, wipe data, system, cache, dalvik, battery stats and flash cm9.
It should work...
Sent from my Arc S using xda premium
Click to expand...
Click to collapse
iwarind said:
I did all that but the stupid touch screen issue still persists..wait..i didn't clear battery stats..but do u think that actually might create such an issue?
Sent from my LT18i using xda app-developers app
Click to expand...
Click to collapse
Wiping battery stats does nothing to your phone. It doesn't change anything, it doesn't affect anything. It cannot be the problem.
Then what do u think the problem is..infact the installation works fine so i think i m not messing up anything on that front..
Sent from my LT18i using xda app-developers app
Probably best to use flashtool to flash stock ics rom and kernel, then cm9 kernel/rom.
I would try another Kernel ... do you have an Arc or Arc S ... does someone know if it makes a difference ?
freakin.ro said:
I would try another Kernel ... do you have an Arc or Arc S ... does someone know if it makes a difference ?
Click to expand...
Click to collapse
I have Arc S..n i did try wid doomkernel as well..same result..
sinkster said:
Probably best to use flashtool to flash stock ics rom and kernel, then cm9 kernel/rom.
Click to expand...
Click to collapse
I had stock ics rom only when i started..n again have gone back to the same now..i tried it a no of times..but the problem persists..

getting rid of aokp rom

i flashed the aokp rom and didnt like it. i tried restoring to factory and said m5 mismatch. then tried to use a jellybean rom and the installation just aborts. what do i need to flash for a jellybean or ics rom. i tried flashing the highonandroid kernal and rom and it was all succesful but the phone wouldnt turn so i restored the aokp and it works. just want something diffrent than this aokp
ritzcrakers said:
i flashed the aokp rom and didnt like it. i tried restoring to factory and said m5 mismatch. then tried to use a jellybean rom and the installation just aborts. what do i need to flash for a jellybean or ics rom. i tried flashing the highonandroid kernal and rom and it was all succesful but the phone wouldnt turn so i restored the aokp and it works. just want something diffrent than this aokp
Click to expand...
Click to collapse
Try the q&a forum. Have a mod move this
Sent from my SGH-T999 using xda app-developers app
ritzcrakers said:
i flashed the aokp rom and didnt like it. i tried restoring to factory and said m5 mismatch. then tried to use a jellybean rom and the installation just aborts. what do i need to flash for a jellybean or ics rom. i tried flashing the highonandroid kernal and rom and it was all succesful but the phone wouldnt turn so i restored the aokp and it works. just want something diffrent than this aokp
Click to expand...
Click to collapse
Transfer a ROM and COMPATIBLE kernel to your phone or sdcard. Do a FULL wipe (factory reset, cache and dcache). Install the ROM and kernel.
If that still doesn't work, use an ODIN image and flash via Odin. That'll solve the problem for sure.
Sent from my SGH-T999 using xda premium
Please read forum rules before posting
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i tried flashing the highonandroid kernel and the rom and when i turned on the phone it would say galaxy s 3 then just have a black screen. do i need to flash touchwiz or something sorry for posting in the wrong section hard to navigate the forums
ritzcrakers said:
i tried flashing the highonandroid kernel and the rom and when i turned on the phone it would say galaxy s 3 then just have a black screen. do i need to flash touchwiz or something sorry for posting in the wrong section hard to navigate the forums
Click to expand...
Click to collapse
Are you sure that kernel is for the sgh t999??
Sent from my SGH-T999V using xda premium
pretty sure. do u have any suggestion or mayb a link on where to get a basic jb kernel and rom that is know to work. just so sick of the aokp the camera sux
There might be a box that you need to uncheck "md5"
Here. DL the jb stock kernel here. There is a cwm package zip so you don't have to flash the whole ROM. http://forum.xda-developers.com/showthread.php?t=1892297
Sent from my SGH-T999 using xda app-developers app
wipe data and partition system....then install the rom
so i tried flashing the jb after wiping and factory reset then installing a rom through cwm. i can flash roms? when i try to install the rom through the cwm i get error 7 installation aborted. and ideas
ritzcrakers said:
so i tried flashing the jb after wiping and factory reset then installing a rom through cwm. i can flash roms? when i try to install the rom through the cwm i get error 7 installation aborted. and ideas
Click to expand...
Click to collapse
Installation 7 usually means it was a bad download. Have you tried just restoring a backup or flashing Odin stock.
Sent from my SGH-T999 using xda app-developers app

Can you flash a higher base rom if you have an older base?

I'm just wondering if you have an older base like 4.0.4 and you want to flash an 4.1.1 rom is that possible or should i upgrade to 4.1.1 then flash?
It's totally possible.
However, this is a good time for a clean install. ie data wipe.
I hardly ever recommend one. But, this is one of the times.
I didn't, however. Last time was ice cream to jelly bean
Sent from my SGH-T999 using xda premium
Thank you
also do you know if flashing back to stock and then upgrading thourgh the kies to 4.1.1 and then flashing a custom rom be safer?
Fewer steps = better.
qwerty123z said:
Thank you
also do you know if flashing back to stock and then upgrading thourgh the kies to 4.1.1 and then flashing a custom rom be safer?
Click to expand...
Click to collapse
You sound like my brother in law. He does that every time he flashes a new ROM, makes no sense to me. When I flash a new ROM, I wipe data/cache and /system, then flash the ROM and restore my Titanium Backup.
Thetenthdr said:
You sound like my brother in law. He does that every time he flashes a new ROM, makes no sense to me. When I flash a new ROM, I wipe data/cache and /system, then flash the ROM and restore my Titanium Backup.
Click to expand...
Click to collapse
Same here... I never did an official update from ICS to Jellybean and so far so good. I know that it's best to install the latest drivers/partitions, but I was too lazy. Lol
Sent from my SGH-T999 using xda premium

[Q] On stock OTA 4.1.2- Flash EL26 kernel still?

My girlfriend is finally fed up with the garbage stock Sprint JB ROM that is a poor excuse for an update...So she's on stock 4.1.2 GB27. I'm going to one click root it, then either one click or with mobile odin flash the Gingerbread kernel EL26 with CWM...which shouldn't be used with the rom but just to get into CWM to flash a new JB rom? Does that sound right? I see people saying to run something to clear the data partition and all that, but why can't you just wipe data in CWM? I've done similar stuff with the i777 GS2 but its been 7 months probably since I rooted and did all the other stuff.
tl;dr from official sprint OTA 4.1.2 gb27 Jelly Bean:
1. one click root
2. flash gingerbread EL26 kernel with cwm
3.wipe data
4. flash rom (with packed-in kernel I assume) of choice through CWM
5. profit
does this sound right?
ARPwizard said:
My girlfriend is finally fed up with the garbage stock Sprint JB ROM that is a poor excuse for an update...So she's on stock 4.1.2 GB27. I'm going to one click root it, then either one click or with mobile odin flash the Gingerbread kernel EL26 with CWM...which shouldn't be used with the rom but just to get into CWM to flash a new JB rom? Does that sound right? I see people saying to run something to clear the data partition and all that, but why can't you just wipe data in CWM? I've done similar stuff with the i777 GS2 but its been 7 months probably since I rooted and did all the other stuff.
tl;dr from official sprint OTA 4.1.2 gb27 Jelly Bean:
1. one click root
2. flash gingerbread EL26 kernel with cwm
3.wipe data
4. flash rom (with packed-in kernel I assume) of choice through CWM
5. profit
does this sound right?
Click to expand...
Click to collapse
Those are the correct steps.
The reason we recommened the JB wipe all 2x is because it deletes the preload folder as well.
Some ROM updater-scripts don't delete everything. My ROM updater-scripts wipe everything but data. But it is still recommened to flash the wipe all script before flashing a custom ROM.
Sent from my SPH-D710 using xda premium
Ok cool thanks. I wanted to have someone confirm that I was doing it right and that flashing the GB kernel for cwm was right on jelly bean... Its one thing if I brick my phone, another thing if I brick my girlfriend's. But I know what I'm doing, haha.
Does that wipe script wipe internal storage like music and photos? I thought I read a thread saying to wipe everything if not on JB, but I am.
Either way, thanks again
Sent from my SGH-I777 using xda app-developers app
ARPwizard said:
Ok cool thanks. I wanted to have someone confirm that I was doing it right and that flashing the GB kernel for cwm was right on jelly bean... Its one thing if I brick my phone, another thing if I brick my girlfriend's. But I know what I'm doing, haha.
Does that wipe script wipe internal storage like music and photos? I thought I read a thread saying to wipe everything if not on JB, but I am.
Either way, thanks again
Sent from my SGH-I777 using xda app-developers app
Click to expand...
Click to collapse
No it doesn't delete your internal drive. And since you are on Jb already, your partitioning should be good to go. No need to wipe internal, just jb format x2. Good luck.
Sent from my SPH-D710VMUB using xda premium

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