Develop Bugs

[Q]{ARC S} How to get into Download Mode?

Hey @ all
i'm a new SE Arc S user and saw my friend using a custom rom on his galaxy s so i decided to give it a try myself ^^
reading the FAQ i got to the thread Read BEFORE flashing!!
it says before flashing i got to test if i can get into the download mode.
so i tried all three methods but i can't.
then i went through many other threads and saw that it actually works on an arc s.
so my question is how do i do it?
i already rooted my phone and i have installed the android sdk including platform-tools and the adb drivers.
additionally i tried to get into recovery mode using the button combination but it doesn't work as well.
Information to the phone:
Arc S (LT18i)
Android-Version: 2.3.4
Build: 4.0.2.A.0.42
Kernel-Version: 2.6.32.9-perf [email protected]#1
if there are any more questions just ask and i will try my best answering them ^^
hope someone can help me
stiil

You have to unlock your bootloader, push a kernel via adb, and install a custom ROM via CWM recovery.
Sent from my LT18i using XDA Premium App
EDIT:
Your guide is for the Samsung Captivate.
Start here.

Thx for your replay.
The guide you linked in your post is for an arc.
Does it work on my arc s too?

Of course, I own the Arc S too and about 95 % of the kernel/ROMs/MODs/themes/etc. works for our device too.

heey
i just unlocked my bootloader.
now i would like to back up everything so that i can switch back to the actual state of the phone.
but recovery is only described with changing the kernel.
is there a different option for a backup?

Flash this on stock kernel, go in recovery and take a backup.
Then you can push kernels, flash custom ROMs, etc.

that means if i make a backup using cwm i bavk up the kernel too?

No, you just push kernels via adb, but you can when ever you want push the stock kernel again.
Sent from my LT18i using xda premium

HELP HELP PLS I have arc s and i used some software to flash and then it reboted tel and now cant get into anything and it wont turn on help pls am desperate.....it isnt rooted....

HDmaniac said:
HELP HELP PLS I have arc s and i used some software to flash and then it reboted tel and now cant get into anything and it wont turn on help pls am desperate.....it isnt rooted....
Click to expand...
Click to collapse
Download Flashtool and ICS (4.1.B.0.587) or GB 4.0.2.A.0.62 Generic firmware, which is a FTF file, and flash it in. Will install fully stock firmware on your phone.

How can I root and flash a custom ROM?

My bootloader status says I can unlock it but my phone is on version 4.0.2.A.0.62 can someone give me a full guide on what I need to do please?
Thanks

cined said:
My bootloader status says I can unlock it but my phone is on version 4.0.2.A.0.62 can someone give me a full guide on what I need to do please?
Thanks
Click to expand...
Click to collapse
Unlock with normal method or testpoint (drm data keept)
Get root/cwm
Find your rom and fitting kernel
Flash.
If you just go first to general selection theres a lot fully made threads about unlocking and getting CWM. (on top, the pinned ones)
Then go to dev. selection so find your rom and follow the guide to flash
From my sexy LT15i

TheHaso said:
Unlock with normal method or testpoint (drm data keept)
Get root/cwm
Find your rom and fitting kernel
Flash.
If you just go first to general selection theres a lot fully made threads about unlocking and getting CWM. (on top, the pinned ones)
Then go to dev. selection so find your rom and follow the guide to flash
From my sexy LT15i
Click to expand...
Click to collapse
I'm struggling to find any guides. I only want to flash so I can get a ROM that has auto brightness turned off as on the stock ROM it's really annoying. Do I NEED to unlock my bootloader first?

Please could you break it down for me?
I'm so confused

You guys can't search? It's on stickies :/
Unlock bootloader:
http://forum.xda-developers.com/showthread.php?t=1551494
.42 downgrade .ftf img and then use zergrush exploit or pre-rooted ones
http://forum.xda-developers.com/showthread.php?t=1330314
Flash Custom Kernels and Roms:
http://forum.xda-developers.com/showthread.php?t=1508585

Here is a link where everything is explained:
http://www.theandroidsoul.com/how-to-root-xperia-arc/
If someone could verify that everything is correct, I'm French and I watch French tutorial
(Like this one: http://www.forummobiles.com/topic/241960-xperia-arc-arc-s-debrand-root-et-flash-de-baseband/)
EDIT : Retrosid is faster than me

no need to root dude if u want to install a custom ROM...just unlock the bootloader..flash a custom kernel and then flash the ROM..thats all..ROM will be pre-rooted..

In my phone settings it says my phone is LT18i does this matter for anything?

no tats just model number for arc s...
follow the method..
unlock
flash custom kernel
flash ROM
u r done!

cined said:
In my phone settings it says my phone is LT18i does this matter for anything?
Click to expand...
Click to collapse
You can change it back by editing build.prop if I remember well. It's nothing
Sent from my Xperia Arc

Retrosid said:
You can change it back by editing build.prop if I remember well. It's nothing
Sent from my Xperia Arc
Click to expand...
Click to collapse
I was just looking how to ... thank you!

arpith.fbi said:
no tats just model number for arc s...
follow the method..
unlock
flash custom kernel
flash ROM
u r done!
Click to expand...
Click to collapse
So I don't need to downgrade anything??
In those steps where do I flash CWM?

nope not required..this is the best short cut and time saving + safe...try it and let us know..
CWM is in custom kernel..u dont need to flash it seperately...

Just flash a kernel & you can use CWM to flash a rom

Thanks,
Do I just follow the steps in this link
http://unlockbootloader.sonymobile.com/
To unlock the bootloader?

yea..follow that..
All the best

I have now unlocked the bootloader
I now want to flash a custom ICS ROM, I now need to find a kernal to flash?
Thanks

yea...either stock ICS kernel or doom kernel for ICS beta..

arpith.fbi said:
yea...either stock ICS kernel or doom kernel for ICS beta..
Click to expand...
Click to collapse
Which ICS ROM Would you suggest? I just downloaded the Doom Kernel + Modules.
Thanks

I'm trying to flash the doomKernels boot.img in fastboot, I have put the ARC-DooMKernel-ICS-BETA-v04-lower-boot.img file in the platform-tools folder, I'm using the command fastboot flash boot ARC-DooMKernel-ICS-BETA-v04-lower-boot and it's saying it cannot load.
Any help please?
actually it says
'[ requirements ]
stock SE ICS Beta FW* (i havent tested on other ROMs so i cannot guarantee that it will work on them!)'
so I need to install stock firmware first?

[Q] How to Backup stock Kernel + ROM ?

Hello Guys !
I wanna try some custom ROM so before doing that want to backup my Kernel & ROM. If anything gone wrong so I can revert back to original ROM.
My Cell details:
Xperia Arc S
LT18i
Android Version 2.3.4
Baseband Version -64
Build number
4.0.2.a.0.62
Locked bootloader
& unrooted.
Please someone guide me....
Thanks in advance...

If your bootloader's locked then you can't back up. You can only reload(repair)it from PC companion.
sinkster©

Thanks sinkster !
Ok done unlocked bootloader.
Then advice the further steps...

XPERIA CWM AUTO INSTALLER
download this app and install CWM recovery on ur phone...
Then reboot ur phone into recovery mode...
TO DO THIS, LONG PRESS BACK BUTTON WHILE THE PHONE RE-BOOTS
(OR)
KEEP TAPPING VOLUME DOWN BUTTON...
After it boots into recovery, go to BACKUP & RESTORE and Select Backup...
This will create a NANDROID BACKUP on your phone exactly as it is...including apps n contacts n all other data..
you can find it in SDCARD/Clockworkmod/Backup/
Good day...

If you wanted to take a backup without installing CWM you can use fastboot to boot (not flash) a kernel that has CWM built in.

thanks amulbaby
I will try and get back here with comment ...
EDIT:
I tried that steps but it will works only on rooted phone ..., can not enter in to recovery mode by pressing any key, it normally boots up and appear home ...

smartarse93 said:
If you wanted to take a backup without installing CWM you can use fastboot to boot (not flash) a kernel that has CWM built in.
Click to expand...
Click to collapse
How to do so... any guide links pls .. .

ShresthasR said:
thanks amulbaby
I will try and get back here with comment ...
EDIT:
I tried that steps but it will works only on rooted phone ..., can not enter in to recovery mode by pressing any key, it normally boots up and appear home ...
Click to expand...
Click to collapse
Why don't you root it with flashtool then?
But for that u wud have to downgrade to .42, with flashtool before rooting

Hey I am also wondering about this. I have lt15i flashed with Official .562, locked bootloader and CWM installed via flashtool.
Which ICS roms will work with official .562 and locked bootloader? I have been searching all morning but not a lot of updates regarding this since the official .562 release.

djsneak1 said:
Hey I am also wondering about this. I have lt15i flashed with Official .562, locked bootloader and CWM installed via flashtool.
Which ICS roms will work with official .562 and locked bootloader? I have been searching all morning but not a lot of updates regarding this since the official .562 release.
Click to expand...
Click to collapse
PROBABLY THIS ..... NOT SURE ....
T.E.A.M. Stock Rom for 2011 Xperia devices

amulbaby said:
Why don't you root it with flashtool then?
But for that u wud have to downgrade to .42, with flashtool before rooting
Click to expand...
Click to collapse
Here is the point I was looking for these alternative . . .
I have STOCK ROM with 4.0.2.a.0.62, actually I want to backup these stuff, I read about that downgrading via flashtool and root, if I flashed via flashtool that STOCK ROM will wipe...
Anyway here what I did to make a copy of my stock firmware & upgraded to ICS firmware & rooted.
Repaired my phone using Sony update service to download and backup STOCK firmware
Flashed with flashtool official firmware LT18i 4.1.A.0.562 NCB Icecream Sandwich Official

First you need to download a kernel that has cwm built in, I would search for recoveryARC.IMG then you also need fastboot from the SDK.
All you would do is connect your phone I'm fastboot then run in a command prompt fastboot boot recoveryARC.IMG. Your phone would then boot using that kernel and you can enter cwm by pressing the vol down several times. This process wouldn't flash your kernel only load it temporarily.
I would try and find a guide about them but I'm on my phone.
Sorry just noticed you've already done it, congrats enjoy ics.
Sent from my LT18i using XDA

smartarse93 said:
First you need to download a kernel that has cwm built in, I would search for recoveryARC.IMG then you also need fastboot from the SDK.
All you would do is connect your phone I'm fastboot then run in a command prompt fastboot boot recoveryARC.IMG. Your phone would then boot using that kernel and you can enter cwm by pressing the vol down several times. This process wouldn't flash your kernel only load it temporarily.
I would try and find a guide about them but I'm on my phone.
Sorry just noticed you've already done it, congrats enjoy ics.
Sent from my LT18i using XDA
Click to expand...
Click to collapse
Thanks bro ...
I already upgraded, anyway I want to know the process, you mentioned here this process wouldn't flash kernel only load it temporarily, I am confused...
Could you describe in details .. ? Actual what happens if we flash recovery img...

Well you can use fastboot to install the kernel which overwrites the previous one, or you can use it boot the kernel which just sends the kernel to the phone which the boots and temporarily uses the kernel. However when the phone next shuts down it will return to normal use.
If you flash a kernel it writes the .IMG to the boot partition. So if I wanted to use a kernel that stayed between reboots I would use 'fastboot flash boot kernelname.IMG'
However if I was running stock I could use recoveryARC.IMG with cwm, and do fastboot boot recoveryARC.IMG then run update.zip as normal. Then all you have to do is reboot, you'll be back to stock but the update would still be installed.
Sorry if it's not cleat, the best I could do on my phone.
Sent from my LT18i using XDA

Please elaborate on backing up STOCK ROM
ShresthasR said:
Here is the point I was looking for these alternative . . .
I have STOCK ROM with 4.0.2.a.0.62, actually I want to backup these stuff, I read about that downgrading via flashtool and root, if I flashed via flashtool that STOCK ROM will wipe...
Anyway here what I did to make a copy of my stock firmware & upgraded to ICS firmware & rooted.
Repaired my phone using Sony update service to download and backup STOCK firmware
Flashed with flashtool official firmware LT18i 4.1.A.0.562 NCB Icecream Sandwich Official
Click to expand...
Click to collapse
Can you please give me details on you did this? It is precisely what I want to do (ie. Backup the stock carrier rom on my Xperia Arc before flashinging an old ROM in order to root it).
Did you use the "repair" option from "Sony PC Companion 2.1>Support Zone>Phone software update>repair phone"?
Or did you use the software from here: http: // w ww(dot)sonymobile(dot)com/gb/tools/update-service/
Can you please tell me the whole procedure on how you did the backup of the STOCK ROM? Thanks!

King of Procrastinators said:
Can you please give me details on you did this? It is precisely what I want to do (ie. Backup the stock carrier rom on my Xperia Arc before flashinging an old ROM in order to root it).
Did you use the "repair" option from "Sony PC Companion 2.1>Support Zone>Phone software update>repair phone"?
Or did you use the software from here: http: // w ww(dot)sonymobile(dot)com/gb/tools/update-service/
Can you please tell me the whole procedure on how you did the backup of the STOCK ROM? Thanks!
Click to expand...
Click to collapse
Actually what I did just followed this guide
http://forum.xda-developers.com/showthread.php?t=1304634
At this thread just follow the video tutorial under section
"How to backup your carrier firmware using Update Service"
Youtube link: http://youtu.be/bB77gWRUI_A
Thanks XperienceD for nice guide

just want to ask, does CWM backup also backups the kernel or firmware?
and how do i restore stock kernel with or without using ODIN?
how do i go on flashing custom firmware? i really do need explanation especially for the .img file that i have been seeing guys.
please help me out because i really want to learn more about software and stuff.
thank you very much and god bless you guys.

ROM backup OK; How to take backup of Kernel
I am using Sony Xperia Ray ST18i
used it for a year with stock kernel and ROM
rooted it long ago, but was afraid of custom ROMs
last month I unlocked bootloader, flashed ROM and custom ROM (beanstalk 4.3.075), enjoying it but obviously not so stable like stock
Now if I wish to move back to my stock kernel and ROM
what steps are required.
I suppose
1. flash the stock kernel
2. restore from backed up ROM (I do have nandroid backup of stock ROM)
but how to achieve the step 1, as I learnt nandroid backup doesn't backs up ROM.
My collegue is having same phone still on stock, Can I use his phone somehow to extract kernel. I searched and found a zip to be used through CWM which backs up kernel it was meant for some samsung phone I tried but failed.
Thanks in advance.
Do I need to supply some more information to get help?

Backup stock ROM
I used this backup guide, but dont know if it will work for you http://helpadude.com/how-to-backup-your-android-rom/
If it does plz give thanks

Help please xperia arc s , bricked,

Hello my Xperia ics arc with 4:03 s. rooted, I have installed in me bow down CWN Well, after I Clicked-thru these steps to install the forum 80.4 ics I Made cahe wipe, and then format date and system restarts and I have to reboot and now I only shows up on the screen and SONY ahi not pass.
Please as I can fix it?, I WOULD HELP
Sorry bad inglish
Thanks.

Arc or Arc S?
Locked or unlocked bootloader?
Try to flash ics with flashtool
http://forum.xda-developers.com/showthread.php?t=1330314
Sent from my LT18i using XDA

cullons said:
Hello my Xperia ics arc with 4:03 s. rooted, I have installed in me bow down CWN Well, after I Clicked-thru these steps to install the forum 80.4 ics I Made cahe wipe, and then format date and system restarts and I have to reboot and now I only shows up on the screen and SONY ahi not pass.
Please as I can fix it?, I WOULD HELP
Sorry bad inglish
Thanks.
Click to expand...
Click to collapse
You didnt flash the recommended kernel..
Don't forget to hit 'THANKS' if I helped..
Sent from my Xperia Pro using XDA

U can flash the original ICS .ftf file with flashtool and your phone should be ok.Dont forget to do it in flash mode !

would you like to sell
i would like to buy ur bricked one if its not working for you !!

okrasitna said:
Arc or Arc S?
Locked or unlocked bootloader?
Try to flash ics with flashtool
http://forum.xda-developers.com/showthread.php?t=1330314
Sent from my LT18i using XDA
Click to expand...
Click to collapse
Please Help me...im freaked...Newby.. I just installed a custom rom on my arc s... but i think i didnt folow the the instructions so good...so now after i installed the rom the boot gets stuck sony logo.the led light wont even light up..an i cant even restore it with cwm..My bad was that i forgot to flash the kernel...I think..But i said it doesnt have to if i have locked bootloader...i have been stuck with this 4 days already search everywhere for help..please help desperate call.phone is expensive in my country

It's never easy to really brick an arc than a galaxy tablet, had the mainboard replaced. flashtool really a very good tool to revive an arc.

Calm down then try this 1 by 1
Janto93 said:
Please Help me...im freaked...Newby.. I just installed a custom rom on my arc s... but i think i didnt folow the the instructions so good...so now after i installed the rom the boot gets stuck sony logo.the led light wont even light up..an i cant even restore it with cwm..My bad was that i forgot to flash the kernel...I think..But i said it doesnt have to if i have locked bootloader...i have been stuck with this 4 days already search everywhere for help..please help desperate call.phone is expensive in my country
Click to expand...
Click to collapse
Hi, Janto
For me, just flashing a custom rom it can't block u getting into cwm. It may stuck with the Kernel's logo/bootAnimation but should passes the CWM notification first.
If you could provide info(Name & version) of your kernel & rom, it would be better for us to help you bring your expensive device back to life:fingers-crossed:
My suggestion is:
1. Use Fastboot to flash a good kernel (Anyone from the development section), then CWM, thought you know how to do a flash again
2. If above step not works, download flashtool (The top thread in the development section) and a complete tft files, then do a flash using the flashtool, this should give you a brand new phone.
BTW: you r BL or not? search for X-parts if u r still locked.

I'm tired trying to root SONY XPERIA S with JB ROM .200. It's possible or not? HOW!!!

Well, if there is someone who rooted their SONY XPERIA S with JB ROM .200 please let me know, and how you did it, without downloading some heavy MB tools. Thanks. I have locked bootloader but it can be unlocked.

Try using DoomLord's script in Development Forum. I rooted my Xperia using that script and everything went fine.

I've tried, it says at some point that my phone is not supported, the model with ROM .200 only with .211

AlinTheron said:
I've tried, it says at some point that my phone is not supported, the model with ROM .200 only with .211
Click to expand...
Click to collapse
It might be a .200 bug. Why don't you try to upgrade to .211?? It may fix that problem...

In PC Companion is not yet . So any other way to do it, I Don't know.

Same problem
I have the same problem, I used to root using Bin4ry's method, but that no longer works, and I can't upgrade to .211 as it's not available in the UK.

This ROM .200 is full of bugs, but for me the most annoying is that the 2G is not working well when connecting to the internet.

I'm waiting for the official .211 if I cannot root it.

Maybe you can try this http://forum.xda-developers.com/showthread.php?t=2304994
Sent from my LT26w using xda premium

Thanks but not working. I don't know what else to do.

Last choice, upgrade to .211
Sent from my LT26w using xda premium

AlinTheron said:
Well, if there is someone who rooted their SONY XPERIA S with JB ROM .200 please let me know, and how you did it, without downloading some heavy MB tools. Thanks. I have locked bootloader but it can be unlocked.
Click to expand...
Click to collapse
Dude, you sure tried everything ?
Did u try this ??

Yep,my ROM is .200 and that post is for ROM .211
SONY XPERIA S

At some point says that my phone is not supported,due to .200 ROM and that the supported ROM is .211
SONY XPERIA S

mcv92 said:
It might be a .200 bug. Why don't you try to upgrade to .211?? It may fix that problem...
Click to expand...
Click to collapse
Hello ....
I had the same problem, mine was also *200 built Jelly Bean, I tried every exploit to root I could, spent all day messing with it, I did not succeed, I couldn't even get into fastboot or any method to enable me to flash this pre rooted ROM as it's zip format not ftf.
I eventually managed to soft brick my Xperia S, then I down graded to ICS, and rooted that very easy indeed, so I'm staying on ICS for the time being, didn't notice any vast improvements with Jelly Bean update anyway, and the phone works great now, I know with the version how to flash if I want too.
Hope this helps? .............................

AlinTheron said:
Well, if there is someone who rooted their SONY XPERIA S with JB ROM .200 please let me know, and how you did it, without downloading some heavy MB tools. Thanks. I have locked bootloader but it can be unlocked.
Click to expand...
Click to collapse
I suggest you to first unlock your bootloader via the easy tool described at here http://forum.xda-developers.com/showthread.php?t=1560613
then flash the Doomkernel with the flashtool booting at fastboot mode. Before doing that never forget to install the necessary drivers.
The kernel is preloaded with custom recovery CWM and TWRP. While booting when you see doom logo pressing at 'vol +' you'll get CWM and pressing at camera button you'll get TWRP.
And flash the su and busybox package via recovery (CWM or TWRP)
for flashtool http://androxyde.github.io/
for kernel and su & busybox package: http://forum.xda-developers.com/showthread.php?t=2305591
& then enjoy Rooted jelly bean
ALL THE BEST !

I'll try. 'hope it works.
SONY XPERIA S

Nope. Not working. It's best to leave the phone as it is.
SONY XPERIA S

Well I managed to unlock my bootloader. Now i'm stuck on how to root it. any ideas?

First of all check your bootloader status.
*#*#7278423#*#* and then service info>configuration. If your bootloader is unlocked, it says 'bootloader unlocked = yes
And be sure that after installing the drivers you successfully connected the phone at fastboot mode. Long press volume + while connecting usb cable to PC. Flashing tool must detect your device.
After unlocking your bootloader rooting will never be problem.
And do it properly, this method definately works but you must be sure your bootloader is unlockable and unlocked also.
Sent from my LT26ii using xda app-developers app