help to root sim unlocked arc s LT18i - Xperia Arc Q&A, Help & Troubleshooting

hiii developers
i m new to this community and want to ask u that i have purchased a Sim Unlocked Sony Erricson Arc S..
and after using stock rom for around two months now i want to root it and install custom roms like CM9...
so i just want to ask that after rooting and installing custom rom my SIM UNLOCK remains unlocked or will it get locked again...
and i have to follow these links to root my phone (as its sim unlocked) or i have to take some precautions...???
http://forum.xda-developers.com/showthread.php?t=1683957
thanx in advance

most probably your sim will remain unlocked...if not, you can re-unlock it again....
could you elaborate whether you have an unlocked bootloader....
if you have, you can directly flash a fxp120/130 kernel, boot into recovery and install cm9 directly without having to root your phone (only if your phone is already on 4.0.4)
hit thanks if i helped....

link-in said:
most probably your sim will remain unlocked...if not, you can re-unlock it again....
could you elaborate whether you have an unlocked bootloader....
if you have, you can directly flash a fxp120/130 kernel, boot into recovery and install cm9 directly without having to root your phone (only if your phone is already on 4.0.4)
hit thanks if i helped....
Click to expand...
Click to collapse
noo i dnt have unlocked bootloader... n my phone is on android 2.3...

Though you have SIM unlocked phone. you will need to unlock bootloader to install custom roms.
You can unlock the boot loader for free by following Sony walkthrough available on the web site just search unlock bootloader Sony phones in Google and follow guides very carefully.
Or you use jinx13 xda member who does this but it's a paid for service.
Sent from my LT15i using xda premium

go thru sony bootloader unlock website.it will help you in unlocking your bootloader......(if you do it via paid service [test point method] then you will not be able to relock it again)
later download 4.0.4 and flash it on your phone using flashtool...
then, download the cm9 rom and paste it in your sd card
then, download fxp120/130 kernel and flash it on your phone
then, boot into recovery and flash cm9 with the usual steps...
check this out it is a super thread...http://forum.xda-developers.com/showthread.php?t=1653188
hit thanks if i helped...

Related

PC companiom ICS upadate with unloked boot loader

im in stock GB with unloked bootloader
If i update my phone using pc companion....
will I have to re unlock my bootloader..????
U cant update with an unlocked bootloader. Some ppl said that it will kill ur phone. But, in my experienced, a pop up alert message show up at my pc screen saying "phone cant update coz a few stuff has been altered" or someting like that.
So...u need to relock ur bootloader, update, then unlock again
Sent from my LT18i using xda premium
Im having custom kernal and root...
Should I have to remove them aswell...
Thanx for replying.....
Geez people, you should research before this.
Here's a thread in the General section with How to install and root: http://forum.xda-developers.com/showthread.php?t=1683957
That's for Stock ROM and Kernel.
If you wish, you can flash the ROM, then use fastboot to install a custom Kernel from the development thread which most likely will have CWM that allows you to flash RootXperia.zip and that's about it.
Unlocked bootloader makes everything easier.
Kajendran said:
Im having custom kernal and root...
Should I have to remove them aswell...
Thanx for replying.....
Click to expand...
Click to collapse
I recomend u flash a stock GB firmware first, for example firmware .42, and then u relock the bootloder. After that, update, and the unlock the bootloader again
Sent from my LT18i using xda premium
If you have an unlocked bootloader, why not just flash the 4.0.4 ICS using Flashtool? There's no point in locking your bootloader, then updating and again unlocking it.
Just flashing the .ftf is much simpler and doesn't waste your time.

Sony Xperia ION LT28at (rooted & Locked)

Hey guys, big time reader, not so much of a poster, since I read a TON. I will start with background...
Galaky S2 custom kernel Cyg/nightly rom/rooted
Galaky S2 Skyrocket rooted
Acer Iconia A500 32gb rooted/custom kernel/rom
Samsung Galaxy Tab 2 10 rooted
So I know my way around. My questions are all relted to my Xperia AT&T ION LT28at (already rooted)
after reading many MANY pages on unlocking the bootloader, I am lost.
I went to the official Sony site and input mu Mime code minus the last digit, and I got an unlock code via email.
Here is my problems, i do not have an off brand sim card and when I try to use other guides with the ericson flasher program, i follow the steps.
1. Power down phone
2. Hold down volume - button while plugging in usb to pc
3. Hold down the fastboot button while plugging in usb to pc....this is the problem....
step3 wont work. the sony code site says the fastboot button is volume +, other sites say its volume + AND Power. No matter what I try, its not working at all. once it connected for a split second and showed the window with the mime (sp?) number greyed out with nothing there and a row below for my unlock key, but the phone disconnected.
So here are my questions....
1. What is the exact procedure to enter fast boot mode on Sony Xperia Ion LT28at as soon as I am done with step 2? Buttons to press, power down etc.
2. I really just want Cynogen (sp) mod rom, do I absolutely NEED an unlocked boot loader for this?
3. I want to enable "Portable WiFi Hotspot" so I can surf with my tablet. Is an unlocked bootloader REQUIRED for this?
4. I am lov9ng that the cynogen mod allows me to add more rows of icons to the home screen, which is one of my main reason for wanting a new rom, I guess this is part of question 2. Is an unlocked bootloader required?
5. Can anyone link me to a nice tutorial for these two things? Installing roms/list of roms on a locked bootloader xperia ion lt28at? As well as one for if I get this thing unlocked.
6. Finally I could really use a good explaination, be it video or baby step by baby step to get this phone into fastboot.
And while I am here, instead of making 4 more threads in 4 areas....
Is there an official (or unofficial) version of Jellybean for....
Galaxy S2 i777
Galaxy S2 Skyrocket i797 (i think)
Acer Iconia a500 32gb
Samsung Galaxy Note 2 10.1?
thanks in advance and I am very sorry for the dumb questions, I guess we all get stumpped sometimes. Afterall I did root 2 other phones and tablets with new roms and kernels.
thank you!
You have a LT28at.....you can not enter fastboot as the LT28at does not allow unlocked bootloader. You don't need another brand sim that is only for sim unlocking not bootloader unlocking.
to answer your questions:
1. you can't since it does not allow unlocked bootloader
2. yes cyanogen requires a custom kernel which you can only flash if you have an unlocked bootloader.
3. Flash the LT28i generic firmware and you can use tethering/wifi hotspot without issue. (just manually put in your apns)
4. See #2 or use a different launcher such as ADW or one of the many others.
5. Just look for the locked bootloader supported rom you want - instructions for installing it "should" be in its first post
6. See #1
Spectre51 said:
You have a LT28at.....you can not enter fastboot as the LT28at does not allow unlocked bootloader. You don't need another brand sim that is only for sim unlocking not bootloader unlocking.
to answer your questions:
1. you can't since it does not allow unlocked bootloader
2. yes cyanogen requires a custom kernel which you can only flash if you have an unlocked bootloader.
3. Flash the LT28i generic firmware and you can use tethering/wifi hotspot without issue. (just manually put in your apns)
4. See #2 or use a different launcher such as ADW or one of the many others.
5. Just look for the locked bootloader supported rom you want - instructions for installing it "should" be in its first post
6. See #1
Click to expand...
Click to collapse
In your opinion, do you think that this bootloader would get unlocked? I wanna know before I buy. the same was said about the x10 by Sony but it was unlocked soon after.
brenty108 said:
In your opinion, do you think that this bootloader would get unlocked? I wanna know before I buy. the same was said about the x10 by Sony but it was unlocked soon after.
Click to expand...
Click to collapse
No idea.
Sent from my Sony Xperia™ TL
This help me out also , my bootloader is also lock and cant be unlock , so i hope some day it will be able to get jelly bean .
stupid question
Spectre51 said:
You have a LT28at.....you can not enter fastboot as the LT28at does not allow unlocked bootloader. You don't need another brand sim that is only for sim unlocking not bootloader unlocking.
to answer your questions:
1. you can't since it does not allow unlocked bootloader
2. yes cyanogen requires a custom kernel which you can only flash if you have an unlocked bootloader.
3. Flash the LT28i generic firmware and you can use tethering/wifi hotspot without issue. (just manually put in your apns)
4. See #2 or use a different launcher such as ADW or one of the many others.
5. Just look for the locked bootloader supported rom you want - instructions for installing it "should" be in its first post
6. See #1
Click to expand...
Click to collapse
______________________________________________________________________________________________________________
how do you flash the LT28i firmware onto the LT28at? I have been looking for a post or thread with the instructions, but so far I have been unable to find anything... please help. I am rooted and was able to install a recovery program on my ion but I have yet to use it and I want to know if I can flash the generic LT28i firmware from there...
luwaldo said:
______________________________________________________________________________________________________________
how do you flash the LT28i firmware onto the LT28at? I have been looking for a post or thread with the instructions, but so far I have been unable to find anything... please help. I am rooted and was able to install a recovery program on my ion but I have yet to use it and I want to know if I can flash the generic LT28i firmware from there...
Click to expand...
Click to collapse
Look at the stock firmware downloads thread. It has a guide for using flashtool which is what you use to flash the firmware. Or since you installed a recovery (cwm I presume) you can use one of the prerooted stock firmware. That thread is in the dev section.
Sent from my Sony Xperia™ Z
Spectre51 said:
Look at the stock firmware downloads thread. It has a guide for using flashtool which is what you use to flash the firmware. Or since you installed a recovery (cwm I presume) you can use one of the prerooted stock firmware. That thread is in the dev section.
Sent from my Sony Xperia™ Z
Click to expand...
Click to collapse
after i flash that would i be able to unlock bootloader, or does that depend on something else? i would like to install the PA rom that ganeshbiyer posted in an other post.
luwaldo said:
after i flash that would i be able to unlock bootloader, or does that depend on something else? i would like to install the PA rom that ganeshbiyer posted in an other post.
Click to expand...
Click to collapse
You can't unlock the bootloader of the LT28at at all.
Sent from my Sony Xperia™ Z
Yea sucks about the boot loader deal. I am thinking about selling mine and find a Red H model of the Ion. PA on a Ion would be great and may still be kind of possible. I was recently running The Nexus rom for locked boot which was very smooth. In that thread it talks about per app dpi being possible with the xtheme that is installed. I have not tried it so cant say how well it would work. Xtheme also allows cm themes to be ported as well. Sure it would not be PA but it seems you could close with a bit of work.
Spectre51 said:
Look at the stock firmware downloads thread. It has a guide for using flashtool which is what you use to flash the firmware. Or since you installed a recovery (cwm I presume) you can use one of the prerooted stock firmware. That thread is in the dev section.
Sent from my Sony Xperia™ Z
Click to expand...
Click to collapse
hello there sorry to bother you with this question can we flash a diferent series rom like lt28h lt28i on our lt28 at? locked bootloader since we never get jb i want o update but this treats make me dizzi theres no info at all how to flash on lt28at locked bootloader been looking for a tutorial how to flash but no luck do we have to flash a kernel after flashing different roms or do somenthing else can you help me explainig how to flash please?
nabelar82 said:
hello there sorry to bother you with this question can we flash a diferent series rom like lt28h lt28i on our lt28 at? locked bootloader since we never get jb i want o update but this treats make me dizzi theres no info at all how to flash on lt28at locked bootloader been looking for a tutorial how to flash but no luck do we have to flash a kernel after flashing different roms or do somenthing else can you help me explainig how to flash please?
Click to expand...
Click to collapse
You use flash tool to flash any of the stock firmwares. Or you can root and I stall a recovery to flash a tom based off stock kernel.
Sent from my Xperia Z2
Spectre51 said:
You use flash tool to flash any of the stock firmwares. Or you can root and I stall a recovery to flash a tom based off stock kernel.
Sent from my Xperia Z2
Click to expand...
Click to collapse
hey thank you for reply fast now I know what to do any rom that you can recommend me?
Sorry been out of the ion ROM loop for a while so I don't know what to suggest. I used stock anyway when I had the ion.
Sent from my Xperia Z2
LT28at
I am aware of that LT28at's boot loader cannot be unlocked
still from reading some threads i came to know that still i can install miui3
also i can also update it to jelly bean mine on is ics - pardon me if my information is wrong
except this 2 is there any possibility with locked boot loader ?
after such long time is there any discovery of unlocking bootloader or other methods to flash rom ?
thank you

[Q] Xperia S Unable to Install any Custom Rom

Hey Guys,
New of the forum here. For the past few days, I have been trying to install a custom rom on my Xperia S which I bought in Hong Kong about 2 years ago. I also had it updated to JB .96 version.
I read the forums as much as I could and firstly tried to root the phone. I couldn't determine if I had a locked or unlocked bootloader. I used this rooting guide:
http://forum.xda-developers.com/showthread.php?t=2417672
by doomlord
and then I moved on to installing a recovery which was also following doomlords guide :
http://forum.xda-developers.com/showthread.php?t=2308493&highlight=adb+server
After having done this, I wanted to install PureSlim KitKat on my Xperia S which I found here:
http://forum.xda-developers.com/showthread.php?t=2606528&highlight=flash
But once I got into the recovery of CWM and selected to install the zip file, after installation it says that it will reboot device but it doesn't. I tried to manually start the phone but it couldn't start up. I can only get it to go into flashmode and thus I ended up flashing a ftf which I found here:
http://forum.xda-developers.com/showthread.php?t=2422053
Afterwards, I am back to square one and I repeated the steps to reroot the device and then I installed recovery again and then tried another rom, this time I tried LeopardRom which also resulted in the same problem of not booting.
I also use Galaxy S2 and have custom rom on that but I didn't expect it to be that much different for xperia S. I am willing to follow steps to resolve the issue here.
-Jazi
you cant install that rom because is for unlocked bootloader and you have locked bootloader, you need unlock the bootloader and install a kitkat kernel. When you finish this you can install this rom
Not all of the bootloaders can be unlock. My bootloader can't be unlock so I use a rom that doesn't need unlocked bootloader. The rom is existenz v1.35
Sent from my LT26i using XDA Premium 4 mobile app
10962 3523294
optic-XPERIA said:
you cant install that rom because is for unlocked bootloader and you have locked bootloader, you need unlock the bootloader and install a kitkat kernel. When you finish this you can install this rom
Not all of the bootloaders can be unlock. My bootloader can't be unlock so I use a rom that doesn't need unlocked bootloader. The rom is existenz v1.35
Sent from my LT26i using XDA Premium 4 mobile app
Click to expand...
Click to collapse
i have the same problem, i have locked bootloader and i want flash kitkat, can you give me some advise or a link on how to do it? i`ve just bricked my phone twice...

[Q] [Newbie]Troubles reading ftf files

Hi,
I'm new to rooting and flashing custom ROMs, so any help will be greatly appreciated
I'm using an orange xperia lt15i, that I've decided to root and on which I want to run CyanogenMod 9.1
Here's what I've come up with :
flashing a generic ftf to debrand my phone, in orded to unlock the bootloader
install recovery
unlock boot loader
flash CM
The catch is, flashtool (0.9.16.1) can't read any of the ftf files I put in the firmware directory..any idea ?
Did I get the steps in the right order, is there any way to achieve this at all ?
Thanks
Deathtiny said:
Hi,
I'm new to rooting and flashing custom ROMs, so any help will be greatly appreciated
I'm using an orange xperia lt15i, that I've decided to root and on which I want to run CyanogenMod 9.1
Here's what I've come up with :
flashing a generic ftf to debrand my phone, in orded to unlock the bootloader
install recovery
unlock boot loader
flash CM
The catch is, flashtool (0.9.16.1) can't read any of the ftf files I put in the firmware directory..any idea ?
Did I get the steps in the right order, is there any way to achieve this at all ?
Thanks
Click to expand...
Click to collapse
maybe file is wrong download here a new one. this works 100% LINK
also use normal flashtool not 64bit.
install drives from flastool install dir/drivers for your phone
install android sdk (just leave all like it is & press install)
now to the process:
flashing a generic ftf to debrand my phone, in orded to unlock the bootloader i dont think this is need. on sony bl unlock site theres mentioned how to get in service menu & look if bootloader unlock allowed: yes or no. if yes just proceed. any way, CM requires flashng stock ics ftf b4 so do it after unlock...
install recovery no need if you flash CM's kernel later it was recovery built in (all custom)
unlock boot loader
flash cm kernel via fastboot
flash CM dont forget gapps! (google apps)
bejunk said:
maybe file is wrong download here a new one. this works 100%
also use normal flashtool not 64bit.
install drives from flastool install dir/drivers for your phone
install android sdk (just leave all like it is & press install)
now to the process:
flashing a generic ftf to debrand my phone, in orded to unlock the bootloader i dont think this is need. on sony bl unlock site theres mentioned how to get in service menu & look if bootloader unlock allowed: yes or no. if yes just proceed. any way, CM requires flashng stock ics ftf b4 so do it after unlock...
install recovery no need if you flash CM's kernel later it was recovery built in (all custom)
unlock boot loader
flash cm kernel via fastboot
flash CM dont forget gapps! (google apps)
Click to expand...
Click to collapse
Ok so I rechecked service info and status says no, eventhough I remenbered differently and got an unlocking code from sony..
Anyway, guess the best I can do is now limited to rooting...
Thanks
Deathtiny said:
Ok so I rechecked service info and status says no, eventhough I remenbered differently and got an unlocking code from sony..
Anyway, guess the best I can do is now limited to rooting...
Thanks
Click to expand...
Click to collapse
there are several methods of unlocking the bootloader such as testpoint...but its not that easy for newbe...
http://forum.xda-developers.com/showthread.php?t=2737846
look at this maybe it helps

[Q] How to be sure that Bootloader is Unlocked, still receiving OTA updates

Hi I am a newbie. I had rooted my phone using Towel-root method and am even using xposed framework and am running stock version. After this to Unlock my Bootloader I fallowed procedures as given by sony, but after i entered unlock command in cmd, my xpeira m went into bootloop.
I tried repaing usning pc companion it said that my mobile has been modified and cant repair, and hence using flashtool flashed stock xperia m rom and had to root again.
But the problem is that I still receive OTA updates from Sony for Walkman and album apps. If my booloader is unlocked I shouldn't be recieving those right ? How can I confirm for sure without flashing anything ?
Another question: Now If i flash CWM from here http://forum.xda-developers.com/xpe...ery-philz-touch-6-41-6-xm-dual-t2795778/page2 will that erase my rom ? I mean do I have to flash my stock rom and reroot after flashing CWM for my device to work ?
i think i have an answer
raghu18 said:
Hi I am a newbie. I had rooted my phone using Towel-root method and am even using xposed framework and am running stock version. After this to Unlock my Bootloader I fallowed procedures as given by sony, but after i entered unlock command in cmd, my xpeira m went into bootloop.
I tried repaing usning pc companion it said that my mobile has been modified and cant repair, and hence using flashtool flashed stock xperia m rom and had to root again.
But the problem is that I still receive OTA updates from Sony for Walkman and album apps. If my booloader is unlocked I shouldn't be recieving those right ? How can I confirm for sure without flashing anything ?
Another question: Now If i flash CWM from here http://forum.xda-developers.com/xpe...ery-philz-touch-6-41-6-xm-dual-t2795778/page2 will that erase my rom ? I mean do I have to flash my stock rom and reroot after flashing CWM for my device to work ?
Click to expand...
Click to collapse
Hi raghu,
see answer to ur first question, i dont think bootloader status will effect ur updates , because at first i tried to install CWM and went into bootloop , before that i unlocked my bootloader using flashtool, so i flashed .ftf file and went back to stock , when i tried to flash CWM i noticed that my bootloader was still unlocked , flashing .ftf didnt change it at all. i dont know whether this happened to me accidentally or it will really doesnt effect ur bootloader status but the answer is bootloader status will not effect ur updats ( as far as i knw).
answer to ur 2nd question is no it wont erase ( i am sure about it :good ur current ROM, if u flash it right. Dont worry i tried that recovery before, its gud and flash carefully, dont end up into bootloop once again ..safe flashing
thnx :good::good:
Your device's bootloader is absolutely locked if you are still receiving the OTA updates (and installing ). And I would suggest you to check the Bootloader status in Flashtool.
No flashing the CWM will not affect your current ROM
XDAOwner!! said:
Your device's bootloader is absolutely locked if you are still receiving the OTA updates (and installing ). And I would suggest you to check the Bootloader status in Flashtool.
No flashing the CWM will not affect your current ROM
Click to expand...
Click to collapse
Thnx mate really helped me.
If I flash cwm on Locked Bootloader
Thank you guys for explanation. Please describe how I can check if my bootloader is locked using flashtool ??? and what happens if cwm is flashed on locked bootloader ( Just in case )
raghu18 said:
Thank you guys for explanation. Please describe how I can check if my bootloader is locked using flashtool ??? and what happens if cwm is flashed on locked bootloader ( Just in case )
Click to expand...
Click to collapse
hey there,
open flashtool and look at the figure below
https://www.dropbox.com/s/ncyza0776myusll/Capture.PNG?dl=0
connect ur phone in flashmode and click on the BLU icon , then it will automatically get the code for ur IMEI and all u need to do is click Unlock and if u flash CWM on locked bootloader it wont work and u may end up in bootloop ( nt sure abt that coz never tried till nw )
hit thanks if this helps.:good::good::good:
hope this helps ,
As far as I am aware only the OTA firmware updates no longer work when you unlock your bootloader, the OTA application updates should work as intended.
For installing the kernel, all you have to do is put your device into fastboot mode, select the kernel with flashtool and then let flashtool work its magic. It won't wipe your ROM as it doesn't touch the /system partition.
You don't even need flashtool to check your bootloader unlock status either. Type in *#*#7378423#*#*, tap Service info, tap Configuration. You will see a section what says rooting status. Underneath rooting status you will find your bootloader status, it will read one of three things;
1) Bootloader unlock allowed: No (meaning you cannot unlock your bootloader, you shouldn't see this as you have unlocked yours by the sounds of the first post)
2) Bootloader unlock allowed: Yes (meaning you can unlock your bootloader, if it says this and you plan on unlocking the bootloader I hope you make backups of your TA partition cause you have no way of locking your bootloader again else. This goes for anybody reading this)
2) Bootloader unlock: Yes (meaning your bootloader is unlocked).
gamer649 said:
You don't even need flashtool to check your bootloader unlock status either. Type in *#*#7378423#*#*, tap Service info, tap Configuration. You will see a section what says rooting status. Underneath rooting status you will find your bootloader status, it will read one of three things;
1) Bootloader unlock allowed: No (meaning you cannot unlock your bootloader, you shouldn't see this as you have unlocked yours by the sounds of the first post)
2) Bootloader unlock allowed: Yes (meaning you can unlock your bootloader, if it says this and you plan on unlocking the bootloader I hope you make backups of your TA partition cause you have no way of locking your bootloader again else. This goes for anybody reading this)
2) Bootloader unlock: Yes (meaning your bootloader is unlocked).
Click to expand...
Click to collapse
Thanks a ton man, You cleared all my doubts. Mine says "Boot Unloacked: Yes" , so I will proceed to flashing cwm. and ya I had taken TA backup.
Thank again
Hi my bro @gamer649 how can I backup my TA partition?
Thanx for ur help
kh34d said:
Hi my bro @gamer649 how can I backup my TA partition?
Thanx for ur help
Click to expand...
Click to collapse
May be you can find in here http://forum.xda-developers.com/showthread.php?t=2484622&page=1
Try this ok
Hi my bro @Nicklas Van Dam.... U r my hero man
u helped me every time
I see u Unlocked ur Bootloader and use ROM with CyanogenMod 12 Alpha Unofficial build 20141121
i want to do like you
plz tell me about ur experience is this rom good?? if u want by message or here
many Thanx for helping me
kh34d said:
Hi my bro @Nicklas Van Dam.... U r my hero man
u helped me every time
I see u Unlocked ur Bootloader and use ROM with CyanogenMod 12 Alpha Unofficial build 20141121
i want to do like you
plz tell me about ur experience is this rom good?? if u want by message or here
many Thanx for helping me
Click to expand...
Click to collapse
hi my friend @kh34d i've been send my experience about my rom that i used, just check out on your inbox, and want you be my friend?

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