[q] How to downgrade from ICS to gingerbread - Xperia Arc Q&A, Help & Troubleshooting

Hi,
I have looked around the forum and read a few threads about downgrading. I just need to make sure that my understandings are correct before I decide to flash it.
1- download flashtool, 6.x version because the 8.x version only works on ICS.
2- download ftf for gingerbread, im trying to downgrade to .42 for root, would there be any complications regarding the 0% battery issue?
Do note that im on stock ics with root now, what risks do I have with flashing now?
Also, if I bring the phone to a Sony store, would they be able to flash the .42 version? Or would they just flash the latest gingerbread version ?
Thank you for the advice
Sent from my LT18i using Tapatalk 2

Hy ! Your method is correct ! .42 not cause 0% (tested me too)
Downgarde from ics with root not have any risk! Pc companion use it to(like flashtool)
In the sony store very likely that they will give you ICS or the latest GB (not .42) .
I have done this many times and no harm(From rooted ICS to .42)
If j help you please hit thanx !!!

Any link for the ftf file? I downloaded one last night but since it wasnt from xda, I have reserves about it.
Edit: also, do I have to enable anything on flash tool? I read about no final verification check or something. What needs to be checked off on flash tool?
Also, after I flash gb, can I do a pc companionship repair ?
Sent from my LT18i using Tapatalk 2

Lusterboi said:
Any link for the ftf file? I downloaded one last night but since it wasnt from xda, I have reserves about it.
Sent from my LT18i using Tapatalk 2
Click to expand...
Click to collapse
J will upload for you !

Whois J? Or did you mean to type I ?
Sent from my LT18i using Tapatalk 2

Lusterboi said:
Whois J? Or did you mean to type I ?
Sent from my LT18i using Tapatalk 2
Click to expand...
Click to collapse
Yes sorry .. I will upload for you
It need some time my upload speed not the best ..
If it writes flash aborted during the flash ..start again and when you selcet the FTF file on the site put a check mark to no final verification..
And finally uploaded : http://www.mediafire.com/?b2lef7nu2z1br9z
Don't forget to hit thanks !!!!

Lusterboi said:
Any link for the ftf file? I downloaded one last night but since it wasnt from xda, I have reserves about it.
Click to expand...
Click to collapse
http://forum.xda-developers.com/forumdisplay.php?f=963

What about the wipe data and cache option? Do I have to enable that?
Sent from my LT18i using Tapatalk 2

Related

[Q] lost wireless capability after unlocking arc

First of all, excuse me for my ****ty english...
So here we go, i've got 2 arc's wright... unlocked the first one, flashed the 1.86ghz kernel and lost wifi and bluetooth... flashed some firmwares, doomlords kernel so lost track on where I lost my wifi...
sick of the laggy performance, sick of the lack of normal memory capacity, so unlocked the other arc and only flashed the 1,86ghz kernel, hoping it wouldnt lose wifi and bluetooth... #bummer...
So, what to do next, how do I get my wifi and bluetooth working again?
Someone got an idea bout what to do?
just flash stock rom, then pre-rooted img. and start again. may be a corrupted file.
Sent from my LT15i using XDA App
sinkster said:
just flash stock rom, then pre-rooted img. and start again. may be a corrupted file.
Sent from my LT15i using XDA App
Click to expand...
Click to collapse
Thanks for your reply, could you do that again...? but then imagen your writing it for an 4-year old... ;p seriously...
(I used tut's and files from androidsoul)
Do you have 2.3.4 and doomlord kernel v10??
Sent from my MT15i using Tapatalk
taaviu said:
Do you have 2.3.4 and doomlord kernel v10??
Sent from my MT15i using Tapatalk
Click to expand...
Click to collapse
Yes I do..
tw1tterik said:
Yes I do..
Click to expand...
Click to collapse
Then ofcourse you dont have wifi. Read kernel thread and you see. Alsi vibrat dont work. For 2.3.4 not relased new kernel jet.
Sent from my MT15i using Tapatalk
taaviu said:
Then ofcourse you dont have wifi. Read kernel thread and you see. Alsi vibrat dont work. For 2.3.4 not relased new kernel jet.
Sent from my MT15i using Tapatalk
Click to expand...
Click to collapse
so, I just have to wait I guess... Damnit! But thanks..
Yes. I flashed back to 2.3.3 because i cant live without doomlord kernel
taaviu said:
Yes. I flashed back to 2.3.3 because i cant live without doomlord kernel
Click to expand...
Click to collapse
any idea when there will be a fix for 2.3.4? I'm just done costumizing my arc, what takes me about 6 hours...
I'll try flashing back to 2.3.3 on my other Arc soon, just so I know that rlly is the problem... Wanted to do that previously but couldnt find 2.3.3 img
Thanks for your replies, now where the he** do I find that #thanks button?
tw1tterik said:
any idea when there will be a fix for 2.3.4? I'm just done costumizing my arc, what takes me about 6 hours...
I'll try flashing back to 2.3.3 on my other Arc soon, just so I know that rlly is the problem... Wanted to do that previously but couldnt find 2.3.3 img
Thanks for your replies, now where the he** do I find that #thanks button?
Click to expand...
Click to collapse
When SE relases new kernel source code, then we have fix for that!
And look agen, here is a thread with xxxxxxxxx.img link.
Regards!
Taavi

4.0.2.a.0.62 arc s root

hi i gust wanted to know about 4.0.2.a.0.62 arc s root
is there any way to root 4.0.2.a.0.62 devises ?
their is just unlock ur bootloader then ! im satisfied .58 il wait for ICS to come
or you can downgrade to .42, and root. I did the same thing, and removed few built in apps that I don't use, and every morning I get 200MB of free RAM, and in normal usage I get 170MB free RAM + the phone got a lot faster than it was on .62
But I dont want to unlock bootloader and lose the warranty and OTA update
Sent from my LT18i using XDA App
Downgrade to .42 build and root.
There are some root methods for .62, but idk. Just look and search.
Sent from my LT18i using xda premium
did, you get the over the air update, or did you use flashtool or wotan, i'm still on .42 and it won't give me the update
dp94 said:
Downgrade to .42 build and root.
There are some root methods for .62, but idk. Just look and search.
Sent from my LT18i using xda premium
Click to expand...
Click to collapse
But downgrade needs an unlocked bootloader right ?
Sent from my LT18i using XDA App
AwesomeAHlee said:
did, you get the over the air update, or did you use flashtool or wotan, i'm still on .42 and it won't give me the update
Click to expand...
Click to collapse
I don't know my device was pre upgrade to .62
I'm waiting for ICS OTA update
I recommend u not to update to.62
Due the root issue
Sent from my LT18i using XDA App
AwesomeAHlee said:
did, you get the over the air update, or did you use flashtool or wotan, i'm still on .42 and it won't give me the update
Click to expand...
Click to collapse
use "Sony Ericsson PC Companion 2.0"..hit thanks button if this help u..
ghayath ameer said:
But downgrade needs an unlocked bootloader right ?
Sent from my LT18i using XDA App
Click to expand...
Click to collapse
I downgraded using Flashtools and didn't have to unlock my boot loader, just flash the system file, and the kernel file. and you will be fine
DeepUnknown said:
I downgraded using Flashtools and didn't have to unlock my boot loader, just flash the system file, and the kernel file. and you will be fine
Click to expand...
Click to collapse
Aha .. Can u mention the way u did to downgrade
Sent from my LT18i using XDA App
ghayath ameer said:
Aha .. Can u mention the way u did to downgrade
Sent from my LT18i using XDA App
Click to expand...
Click to collapse
I did it just few minutes ago and no need unlock BL
1. Flash to 42 or 58 firmware by flashtool. I download from below linkhttp://forum.xda-developers.com/showthread.php?t=1357841
2. Root ur phone by flashtool again.
U can change the CDA before use US or PCC then back to orginal 62 FW.
Cheers
PS.sorry my poor english
Solved
1. Unlock the Bootloader
2. Install Doomlord Stock Kernel 1.6 ( Pre rooted)
3. Install .62 stock Kernel from .ftf file (Root remains from Doomlord Stock Plus Kernel 1.6 even after installing .62 Rom kernel agian)
4. Re-lock the bootloader with the help of Flashtool.
5. You have Stock ROM rooted and with locked bootloader.
....Worked like Charm for me on my Arc s (LT18i, .62 ROM)
Hi,
I have a question.
Can I flash lt15i(arc) roms to lt18i(arc s)?If I flash lt15i roms may I expose oneself a problem?Can It(arc roms) work on my arc s?
And,I can not found arc s rom(.42 or .62).I had to flash old verison of rom.It is 4.0.1.A.268.
I want to upgrade to new version(.42)or better version.
Can anyone help me?
Excuse me (for my englhesh(englesh) ) ok english(I know it was bad joke )
BehnanBalaban said:
Hi,
I have a question.
Can I flash lt15i(arc) roms to lt18i(arc s)?If I flash lt15i roms may I expose oneself a problem?Can It(arc roms) work on my arc s?
And,I can not found arc s rom(.42 or .62).I had to flash old verison of rom.It is 4.0.1.A.268.
I want to upgrade to new version(.42)or better version.
Can anyone help me?
Excuse me (for my englhesh(englesh) ) ok english(I know it was bad joke )
Click to expand...
Click to collapse
Download Arc S LT18i (4.0.2.a.0.62 Offical ROM) : http://www.mediafire.com/?6fs6iry9spv78mb
You can install Arc Rom on ARC S by some tweaks but it makes your ARC S slow as the default CPU speed in ARC is 1 Ghz and our ARC S is 1.4 ghz by default.
Download the .ftf file from the above link and install it through Flash Tool.
@jaipurwasi80 Thank for answer and help.
I think the problem(arc s as arc(cpu)) can fix with overlock and upgrade 1,6 or 2,0 ghz,cant it?
BehnanBalaban said:
@jaipurwasi80 Thank for answer and help.
I think the problem(arc s as arc(cpu)) can fix with overlock and upgrade 1,6 or 2,0 ghz,cant it?
Click to expand...
Click to collapse
Yes you can Overclock and set the CPU speed at 1.4 ghz or more......If you like my comment please press Thanks button.
jaipurwasi80 said:
Yes you can Overclock and set the CPU speed at 1.4 ghz or more......If you like my comment please press Thanks button.
Click to expand...
Click to collapse
Sorry but this file hasn't been worked and did error,my phone could brick,something has gone wrong,I think you should fix something or you can damage to some devices...
BehnanBalaban said:
Sorry but this file hasn't been worked and did error,my phone could brick,something has gone wrong,I think you should fix something or you can damage to some devices...
Click to expand...
Click to collapse
I have used the same file for my Arc S( LT18i) and its worked fine for me along with the Latest Flash tool. I hope you are using the .ftf file in Flashtool and your phone in flashboot mode.
OR
Go to www.wotanserver.com and download its client on your PC to Install any Offical Sony Ericsson ROM. You need to make a free account on the site and while installing you can choose to install 4.0.2.a.0.62 offical ROM.
---------- Post added at 11:56 PM ---------- Previous post was at 11:52 PM ----------
jaipurwasi80 said:
I have used the same file for my Arc S( LT18i) and its worked fine for me along with the Latest Flash tool. I hope you are using the .ftf file in Flashtool and your phone in flashboot mode.
OR
Go to www.wotanserver.com and download its client on your PC to Install any Offical Sony Ericsson ROM. You need to make a free account on the site and while installing you can choose to install 4.0.2.a.0.62 offical ROM.
Click to expand...
Click to collapse
BehnanBalaban said:
Sorry but this file hasn't been worked and did error,my phone could brick,something has gone wrong,I think you should fix something or you can damage to some devices...
Click to expand...
Click to collapse
See this video to understand how Wotanserver work : www.youtube.com/watch?v=ZQIw608rZfI

New Arc S firmware [4.1.L.0.8]?

Apparently, a new firmware was just certified in PTCRB.
Does anyone have any info on this?
Wow, more updates!
Does anyone know what is the update for?
Sent from my LT18i using xda premium
hope this one will be as smooth as GB.
hmmm looking forward to see what new features fixes does it have. hopefully it is not a regional framework only.
looks like it is a carrier/region specific update..btw one update for arc s is on its way..
It,s the same 4.0.4 but for a carrier in the UK
I'm not have update ?
I believe it's the 4.0.4 ICS UK update for 3.
At least that's what was reported by one of our other members.
Sorry if that dashed your hopes. LOL!
How will this work as I am on 3 and my Phone has officially updated to 4.0.4
Sent from my LT18i using Tapatalk 2
arpith.fbi said:
looks like it is a carrier/region specific update..btw one update for arc s is on its way..
Click to expand...
Click to collapse
Where did you hear that ? Awesome.
i have this firmware really simple to root just flash .431 kernal then root then update kernal
the 431 kernal i thought this was just another regional/ branded 4.0.4 fw
deanage1983 said:
i have this firmware really simple to root just flash .431 kernal then root then update kernal
Click to expand...
Click to collapse
The .431 kernel is not root-able. I think you meant the the 4.0.3 kernel
Sent from my LT18i using xda premium
am i smelling udpate........?
xtacy! said:
I believe it's the 4.0.4 ICS UK update for 3.
At least that's what was reported by one of our other members.
Sorry if that dashed your hopes. LOL!
Click to expand...
Click to collapse
My phone is branded to `3` and to concur with xtacy above , it recently updated to this firmware .
Hmm. Does this only occur on unrooted? I am on 3 and it just says I have the latest software if I check in PC Companion?
did u flash an ftf to update ur phone or get it through update official ?
buzzinkeegs said:
did u flash an ftf to update ur phone or get it through update official ?
Click to expand...
Click to collapse
I used PC Companion to flash then ran Doomlord root bat file. I take it I won't get any official update unless I remove root (probably have to do repair to do that though right?).
I have a notification saying FW 4.1.B.0.431 Is now available. Anyone know what it is? Don't want to update if it's just a few fixes for 4.0.3.
Sent from my LT18i using xda premium
Jessie-James said:
I have a notification saying FW 4.1.B.0.431 Is now available. Anyone know what it is? Don't want to update if it's just a few fixes for 4.0.3.
Click to expand...
Click to collapse
It's 4.0.4.
Go through posts on this section to get info what has been changed.

[Q] arc s

hi every one
im trying 2 root my arc s on ICS 4.0.4
and after i flash my phone i opend the runme.exe file
and while it's rooting it says he can't install busy box and ui coz it's not located in my system file on my phone plz
if there any one can help me
tell me what can i do?
semsem295 said:
hi every one
im trying 2 root my arc s on ICS 4.0.4
and after i flash my phone i opend the runme.exe file
and while it's rooting it says he can't install busy box and ui coz it's not located in my system file on my phone plz
if there any one can help me
tell me what can i do?
Click to expand...
Click to collapse
If im not mistaken, arc s android 4.0.4 is not rootable unless you flash the kernel from version 4.0.3/build 562. Try looking around, there are tons of thread about rooting the android 4.0.4
Sent from my LT18i using xda premium
hi
maliceomalice said:
If im not mistaken, arc s android 4.0.4 is not rootable unless you flash the kernel from version 4.0.3/build 562. Try looking around, there are tons of thread about rooting the android 4.0.4
Sent from my LT18i using xda premium
Click to expand...
Click to collapse
thnx 4 ur reply
but this is not the answer that im waiting 4
i want 2 install the busybox and ui in runme.exe
semsem295 said:
thnx 4 ur reply
but this is not the answer that im waiting 4
i want 2 install the busybox and ui in runme.exe
Click to expand...
Click to collapse
Sorry but that's the reply you've got. Your 4.0.4 is not rootable
Sent from my LT18i using Tapatalk 2
What they said was right. That file will help you root your phone by exploiting a loophole in the .562 kernel.
So flash the kernel and you're good to go.
Swyped from my SE Xperia arc (LT15i) using Tapatalk 2
Questions go in the Q&A section

[Q] Arc S stuck at sony logo... System reset without a software in SD card

Hi im new here. i need an expert opinion. Using xda forum i've recently rooted my friends arc s. everything went well and the phone was successfully rooted. plan was to upgrade it to ice bean. I performed system reset but accidently didnt load the new software zip.
now all i see is sony logo. Is the phone now bricked?? Is there any solution to restore the phone. i would really appreciate some help for this problem...
thanks
Hasan
Just flash any 4.0.4 fw via flashtools!
Sent from my LT18i using Tapatalk 2
FAdrums said:
Just flash any 4.0.4 fw via flashtools!
Sent from my LT18i using Tapatalk 2
Click to expand...
Click to collapse
Correct!..use newest flashtool...
Tips: doing nandroid backup before doing anything
Sent from my Xperia Arc using xda premium
That's the standard operating procedure to safeguard your android and that's what I like my xperia arc s over my galaxy tab.
Sent from my GT-P6800 using xda app-developers app
Thanks
Many thanks to all ov you... Does anybody has link to the newest flash tool? where can i find it?
Thanks!
hasan
http://forum.xda-developers.com/showthread.php?p=12223467
There you go!
Sent from my LT18i using Tapatalk 2
FAdrums said:
Just flash any 4.0.4 fw via flashtools!
Sent from my LT18i using Tapatalk 2
Click to expand...
Click to collapse
FAdrums said:
http://forum.xda-developers.com/showthread.php?p=12223467
There you go!
Sent from my LT18i using Tapatalk 2
Click to expand...
Click to collapse
one more thing. could you tell me how to flash 4.0.4 firmware ? just need an example.. and if possible kindly provide me with any firmware file to start with. this forum is just full of high tech stuff and im unable to find anything at this beginner stage... :silly:
Thanks a bunch!!!
muhammad.hasan said:
one more thing. could you tell me how to flash 4.0.4 firmware ? just need an example.. and if possible kindly provide me with any firmware file to start with. this forum is just full of high tech stuff and im unable to find anything at this beginner stage... :silly:
Thanks a bunch!!!
Click to expand...
Click to collapse
here you go dude(the method same with GB) !! http://www.youtube.com/watch?v=JmmThXTWu74
problem still not solved !!!
ok ive flashed with the new flash tool. it has its built in new fm for arc s.
i still see sony logo. nothing happened. please suggest what shud i do????? :crying:
muhammad.hasan said:
ok ive flashed with the new flash tool. it has its built in new fm for arc s.
i still see sony logo. nothing happened. please suggest what shud i do????? :crying:
Click to expand...
Click to collapse
Just wait..first boot may take a more time...
By the way what is your bootloader status..is it locked or unlock..?
Sent from my Xperia Arc using xda premium
dont know about boot loader status.... how do i find that out?
if i dont know the bootloader status then probably its locked ! any solution with a locked BL?
its been more than 10 minutes since the sony logo is displayed.
muhammad.hasan said:
if i dont know the bootloader status then probably its locked ! any solution with a locked BL?
its been more than 10 minutes since the sony logo is displayed.
Click to expand...
Click to collapse
Its simple, have you unlocked it??
if yet...and you want to do this with all risk try to do this
Press dial phone
*#*#7378423#*#*....when it said Bootloader unlock : yes
Its mean u can unlock your bootloader..then go to this tutorial,remember you will avoid your guarante,but after that you can flash any amazing custom ROM...
http://forum.xda-developers.com/showthread.php?p=12873655
Or if just want to keep on stock..I suggest you to reflash the stock rom/firmware..follow the instruction carefully..
EDIT : sorry..just forgot that u get bootloop
So just doing last step : reflash the firmware...
Sent from my Xperia Arc using xda premium
AndriyeZ said:
Its simple, have you unlocked it??
if yet...and you want to do this with all risk try to do this
Press dial phone
*#*#7378423#*#*....when it said Bootloader unlock : yes
Its mean u can unlock your bootloader..then go to this tutorial,remember you will avoid your guarante,but after that you can flash any amazing custom ROM...
http://forum.xda-developers.com/showthread.php?p=12873655
Or if just want to keep on stock..I suggest you to reflash the stock rom/firmware..follow the instruction carefully..
EDIT : sorry..just forgot that u get bootloop
So just doing last step : reflash the firmware...
Sent from my Xperia Arc using xda premium
Click to expand...
Click to collapse
the problem is that the phone is stuck at sony logo. so i wont be able to unlock the bootloader as it needs the dial pad...
I have been flashing this phone with LT18i_4.1.B.0.587_Kernel.ftf but no progress is seen.
i dont have much info about bootloop and bootloader?
what instructions do i need to follow. could you guide me stepwise.
thanks a lot for the help you've been providing so far !
Try to flash ROM 4.0.4 which is compare with the kernel..looks like u just flash the kernel..
Sent from my Xperia Arc using xda premium
AndriyeZ said:
Try to flash ROM 4.0.4 which is compare with the kernel..looks like u just flash the kernel..
Sent from my Xperia Arc using xda premium
Click to expand...
Click to collapse
if my phone is stuck at sony logo, can i still flash a ROM? how will i enter into recovery mode?
muhammad.hasan said:
if my phone is stuck at sony logo, can i still flash a ROM? how will i enter into recovery mode?
Click to expand...
Click to collapse
Absolutely...
I think thats why flashtool so usefull...its 100 % work...
Sent from my Xperia Arc
AndriyeZ said:
Absolutely...
I think thats why flashtool so usefull...its 100 % work...
Sent from my Xperia Arc
Click to expand...
Click to collapse
ok that sounds great... how do i do it? because whenever i select ROM for flash, the flashtool says that only ftf is acceptable. Kindly suggest ho do i do it. thanks
muhammad.hasan said:
ok that sounds great... how do i do it? because whenever i select ROM for flash, the flashtool says that only ftf is acceptable. Kindly suggest ho do i do it. thanks
Click to expand...
Click to collapse
The stock ROM usually .tft file...so now try to search download stock ROM for 4.0.4 or 4.03 include those kernel...it is a tons this forum..try to use search engine...I can help u with the link but, can give u now..I have work...so be pation...search thread which give u download link..goodluck mate..
EDIT : I was using from this thread for my Arc S last time...read carefully the steps...
http://forum.xda-developers.com/showthread.php?t=1683957
Sent from my Xperia Arc
Thanks !
AndriyeZ said:
The stock ROM usually .tft file...so now try to search download stock ROM for 4.0.4 or 4.03 include those kernel...it is a tons this forum..try to use search engine...I can help u with the link but, can give u now..I have work...so be pation...search thread which give u download link..goodluck mate..
EDIT : I was using from this thread for my Arc S last time...read carefully the steps...
http://forum.xda-developers.com/showthread.php?t=1683957
Sent from my Xperia Arc
Click to expand...
Click to collapse
hi there i wanted to thank you for you help. i have successfully flashed my phone with the stock ROM... Thanks a lot!

Categories

Resources