Develop Bugs

Custom roms with locked bootloaders

Hello everyone last week i got pissed at my arc s because of its stockness.Stock,kernel,rom,widges,slow ui,locked bootloader,not rooted etc etc etc.The i decied to unlock my bootloader,after few hours of research i found out that the only way to unlock it is the paid method i got pissed.Then i decied to install a custom rom and heres what i did"
Since i coudnt instal nor get into cwm i found this https://play.google.com/store/apps/...251bGwsMSwxLDEsImNvbS5wdnkuQ1dNaW5zdGFsZXIiXQ..
i installed the program,rooted my phone with DoomLoards method(the one for ICS phones) and then downloaded to rom
What i did next is to download few rom and tested and here are the roms:
http://forum.xda-developers.com/showthread.php?t=1526717 , I did all of the steps with wiping data/cache atc when i installed all the roms,but just choosed the other archive file for the rom
http://forum.xda-developers.com/showthread.php?t=1565475 < which im using now
http://forum.xda-developers.com/showthread.php?t=1515148
Remmember that i cant get into cwm if i turn of the phone for some reason,so i run the xperia cwm program and got into it.After that just follow the steps given in the rom's topic "How to install" and thats it.
After 2 reboots my phone was running all of the listed rom which needed unlocked bootloader in order to be installed

I would love some1 else to test my method

To flash new kernal u need bootloder unlock so u cant change kernal in locked bootloader
Roms like
Cm7&9
N miui wont work
Ics base Rom may work

Well yes
im running them with stock kernel.Right now im using http://forum.xda-developers.com/showthread.php?t=1565475 MuIU and it runs perfectly much better then the stock ICS i had before every with 80 100 free ram

gogobaba said:
I would love some1 else to test my method
Click to expand...
Click to collapse
Hi I would like to try what you have mentioned. However, I am currently still on the GB ROM. I have rooted my phone. I presume I need to flash to ICS first before trying your method.
Is there anyway I can flash a stock ICS ROM with a locked bootloader using flashtools? Stock ICS is not released for my region yet so I can't do it by the usual PC Companion way I think.

I dont think that u need to install stock ICS before using this "method".Try installing this https://play.google.com/store/apps/...251bGwsMSwxLDEsImNvbS5wdnkuQ1dNaW5zdGFsZXIiXQ and then do the steps said in the rom u want to install.I would suggest u to read very carefuly the tutorial provided by the rom's developer so u wont srew your phone like i did the 1st time aka dele cavik cache/farcroty reset etc etc.U can use the instructions from this rom http://forum.xda-developers.com/showthread.php?t=1526717 .U can put any rom u want on the sd card but the steps before that got to be the same

So basically what you did was install a Stock Based ROM without install the kernel that ROM need right? And is working?
I have ROOT and ICS Stock, i already search and i was thinking to install a Stock Based ROM without ROM custom kernel but i was afraid
So seams you try it and work right?

Yes ive tried those 3 roms and they work with the stock kernel that my arc s comes with,they detect the phone as lt18i etc etc.Mind that if your bootloader is locked you probably wont be able to get into recovery vie the normal way aka press to volume keys up and down,thats why u need to install the xperia cwm program and reboot into recovery with it.If you do something wrong and your phone freezes at the xperia logo we can fix that(flashing the stick ICS with flashtool using flashmode (holding the back key)

MetaBolic0 said:
So basically what you did was install a Stock Based ROM without install the kernel that ROM need right? And is working?
I have ROOT and ICS Stock, i already search and i was thinking to install a Stock Based ROM without ROM custom kernel but i was afraid
So seams you try it and work right?
Click to expand...
Click to collapse
I think you should install ICS first because those roms require baseband 70, that comes with ICS.

I cant confirm that my methot will work with GB since i did not try it

hdplsa said:
I think you should install ICS first because those roms require baseband 70, that comes with ICS.
Click to expand...
Click to collapse
I already have ICS 4.0.3, Baseband 70 and Root so i only need to pick a custom stock based ROM

Did anyone try to install JJ Hybrid ROM with a locked bootloader?
http://forum.xda-developers.com/showthread.php?t=1537717
I feel that JJ's ROM has quite a lot of promise.

No i havent tryed it

merlinlightstrike said:
Did anyone try to install JJ Hybrid ROM with a locked bootloader?
http://forum.xda-developers.com/showthread.php?t=1537717
I feel that JJ's ROM has quite a lot of promise.
Click to expand...
Click to collapse
ME too have the same question
@gogobaba can you please try your method with JJ Hybrid ROM

2) KERNELS
a) Sirkay's ICS Kernel HERE (For Overclocking )
b) Arc Knight Kernel by jimbo77 HERE (for Overclocking)
OR
b) Stock ICS Beta Kernel with CWM HERE (thanks cobrato)
OR
c) DoomLord ICS kernel with Wifi Modules .
Sorry guys but i cant try it i dont have the time to reinstall my phone again and i dont have wifi or mobile internet for my programs to be downloaded again.
I have my doubts that this rom will work because of the kernels.Check b) its says stock ICS beta kernel i dont know if this is the stock kernel of the arc or its some other kernel.Ask in the rom's topic if u can install this rom with the stock kernel.If u can they you should be albe to install it.
Mind that i cant be held responsive if something goes wrong with your phone.I can verefy only the roms from the 1st post

turnaround said:
ME too have the same question
@gogobaba can you please try your method with JJ Hybrid ROM
Click to expand...
Click to collapse
Hey, good news for everyone, JJ is intending to do his ROM specifically for locked bootloaders.
http://forum.xda-developers.com/showpost.php?p=26516244&postcount=1410

i tried installing arconium miui and didn't work.

Its working perfectly fineon my phone did u follow all the steps?1st time i installed it without deleting the date and it didnt work

does arconium miui has hebrew?

i did a factory reset and it still didn't work, and now i lost all my apps.

GB 2.3.3 to ICS

Greetings
I'm new to the Xperia play scene, i have one, version R800i and i acquire some help from anyone experienced in this.
I have been doing some research in rooting, unlocking and installing roms on this device and i have succesfully rooted and unlocked it.
After doing so i also installed the Recovery System using ClockWorkMod Recovery 5.0.2.7-nAa-r2 install batches, then i continued and tried to flash XperiaPlay Ice Cream Pureness ver.1 through Recovery, which, failed and soft bricked my phone... so i then used Flashtool to downgrade to a stock firmware that i randomly found on the forums.
So the firmware installed is GB 2.3.3 and i was on 2.3.4 previously. I thought i could update my phone to a higher firmware using the PC companion app but it fails saying that my device is modified somehow and cannot upgrade... ok, well, i thought maybe using a ROM anyways so i tried installing Recovery system again but X-parts now says that my phone is unsupported...
Basically i'm stuck on 2.3.3, and i'd like to use a ROM which unlocks its maximum potential.
Any help appreciated!

Spl1tz said:
Greetings
I'm new to the Xperia play scene, i have one, version R800i and i acquire some help from anyone experienced in this.
I have been doing some research in rooting, unlocking and installing roms on this device and i have succesfully rooted and unlocked it.
After doing so i also installed the Recovery System using ClockWorkMod Recovery 5.0.2.7-nAa-r2 install batches, then i continued and tried to flash XperiaPlay Ice Cream Pureness ver.1 through Recovery, which, failed and soft bricked my phone... so i then used Flashtool to downgrade to a stock firmware that i randomly found on the forums.
So the firmware installed is GB 2.3.3 and i was on 2.3.4 previously. I thought i could update my phone to a higher firmware using the PC companion app but it fails saying that my device is modified somehow and cannot upgrade... ok, well, i thought maybe using a ROM anyways so i tried installing Recovery system again but X-parts now says that my phone is unsupported...
Basically i'm stuck on 2.3.3, and i'd like to use a ROM which unlocks its maximum potential.
Any help appreciated!
Click to expand...
Click to collapse
Flash the .62 ftf via flashtool
http://www.mediafire.com/?lojlw6bffm7alv1
also don't forget to flash the kernel for custom roms via fastboot otherwise it Will soft brick
Sent from my R800i using Tapatalk 2

fma965 said:
Flash the .62 ftf via flashtool
http://www.mediafire.com/?lojlw6bffm7alv1
also don't forget to flash the kernel for custom roms via fastboot otherwise it Will soft brick
Sent from my R800i using Tapatalk 2
Click to expand...
Click to collapse
Thanks for that!
Also is it a specific kernel for each ROM? or there a lot i can choose from?
Would help a lot if u could tell me what ROM is recommended for gaming.
I'm owner of a rooted SGSII with resurrection ROM. Modding a Play is harder xD

Spl1tz said:
Thanks for that!
Also is it a specific kernel for each ROM? or there a lot i can choose from?
Would help a lot if u could tell me what ROM is recommended for gaming.
I'm owner of a rooted SGSII with resurrection ROM. Modding a Play is harder xD
Click to expand...
Click to collapse
well the thing with a xperia play and all 2011 xperia devices is you can't flash the kernel via recovery like most phones,
Kernels are specific to each version and branch. AOSP,CM etc need a different kernel to SE. ICS and GB also have different kernels.
The rom i recommend for gaming is the one i am currently working on, based on TrueAncestor but need to get approval from here before releasing it.

same lol
Spl1tz said:
Greetings
I'm new to the Xperia play scene, i have one, version R800i and i acquire some help from anyone experienced in this.
I have been doing some research in rooting, unlocking and installing roms on this device and i have succesfully rooted and unlocked it.
After doing so i also installed the Recovery System using ClockWorkMod Recovery 5.0.2.7-nAa-r2 install batches, then i continued and tried to flash XperiaPlay Ice Cream Pureness ver.1 through Recovery, which, failed and soft bricked my phone... so i then used Flashtool to downgrade to a stock firmware that i randomly found on the forums.
So the firmware installed is GB 2.3.3 and i was on 2.3.4 previously. I thought i could update my phone to a higher firmware using the PC companion app but it fails saying that my device is modified somehow and cannot upgrade... ok, well, i thought maybe using a ROM anyways so i tried installing Recovery system again but X-parts now says that my phone is unsupported...
Basically i'm stuck on 2.3.3, and i'd like to use a ROM which unlocks its maximum potential.
Any help appreciated!
Click to expand...
Click to collapse
lol WTF the same thing happened to me half an hour ago, with the same rom!! i have been searching for a solution. i have a r800a if u find a solution pm me plz!

[Q] Trying to install Xperia Play Z final version, very confused. (r800a)

Hey guys, as the post title says, I'm trying to install the xperia play z rom, and I'm hitting a lot of road blocks. First one is, I don't even know if my phone's bootloader is unlocked! I'm pretty sure it is, because I thought all r800a's came with an unlocked bootloader, and I also used the flashtool, unlock bootloader tool, and it said it was already unlocked.
So, naturally what I do, is I flash the firmware in the guide (located here - http://www.android-hilfe.de/root-cu...a-play/417392-rom-xperia-play-z-v1-1-0-a.html), and after that I want to root it so I can install a recovery. But when I try to root it, it always fails on part 1. So I tried to install cyanogenmod recovery without it. But after the apk is installed, i'm not able to install the actual recovery because it is not rooted.
My main problem with the guide is that it says to just boot into clockworkmod recovery, but I don't know how to. I turn on the phone and press the up button, but without installing the CWM/X-parts recovery, there's no way I can expect it to come up.
Any help please? I'm totally lost here. I know how to get roms that are based on gingerbread, but for some reason, Ics/Jellybean roms don't work at all, and I don't know if it is whether because my phones bootloader isn't unlocked (even though it says it is), or it's something else, like me missing a tutorial specifically for ics/jellybean roms.
Thanks in advance.

fishvtt said:
Hey guys, as the post title says, I'm trying to install the xperia play z rom, and I'm hitting a lot of road blocks. First one is, I don't even know if my phone's bootloader is unlocked! I'm pretty sure it is, because I thought all r800a's came with an unlocked bootloader, and I also used the flashtool, unlock bootloader tool, and it said it was already unlocked.
So, naturally what I do, is I flash the firmware in the guide (located here - http://www.android-hilfe.de/root-cu...a-play/417392-rom-xperia-play-z-v1-1-0-a.html), and after that I want to root it so I can install a recovery. But when I try to root it, it always fails on part 1. So I tried to install cyanogenmod recovery without it. But after the apk is installed, i'm not able to install the actual recovery because it is not rooted.
My main problem with the guide is that it says to just boot into clockworkmod recovery, but I don't know how to. I turn on the phone and press the up button, but without installing the CWM/X-parts recovery, there's no way I can expect it to come up.
Any help please? I'm totally lost here. I know how to get roms that are based on gingerbread, but for some reason, Ics/Jellybean roms don't work at all, and I don't know if it is whether because my phones bootloader isn't unlocked (even though it says it is), or it's something else, like me missing a tutorial specifically for ics/jellybean roms.
Thanks in advance.
Click to expand...
Click to collapse
Well you have to flash an ICS kernel first and it will already have a cwm recovery in it. Then you can just boot to recovery and flash the rom
Sent from my Xperia Play (r800x)

abdel12345 said:
Well you have to flash an ICS kernel first and it will already have a cwm recovery in it. Then you can just boot to recovery and flash the rom
Sent from my Xperia Play (r800x)
Click to expand...
Click to collapse
OHHHHHHHHH. Thank you so much. But how am I supposed to flash the boot.img for the modified doomkernel v3, which it says it includes in the guide? Am I supposed to extract it from the rom zip or something? Thanks again.

fishvtt said:
OHHHHHHHHH. Thank you so much. But how am I supposed to flash the boot.img for the modified doomkernel v3, which it says it includes in the guide? Am I supposed to extract it from the rom zip or something? Thanks again.
Click to expand...
Click to collapse
yes, boot.img is inside the zip. Unpack just that file and flash it with flashtool (in fastboot mode). But you must have unlocked bootloader to be able to flash any custom kernel

Bakisha said:
yes, boot.img is inside the zip. Unpack just that file and flash it with flashtool (in fastboot mode). But you must have unlocked bootloader to be able to flash any custom kernel
Click to expand...
Click to collapse
Alright. Thank you so much. So that's what I was missing.

Bakisha said:
yes, boot.img is inside the zip. Unpack just that file and flash it with flashtool (in fastboot mode). But you must have unlocked bootloader to be able to flash any custom kernel
Click to expand...
Click to collapse
Sorry, another question. What happens is that when I try to flash an ics kernel, it goes into an infinite bootloop, but when I flash a gingerbread kernel, it works fine. Is this a sign of a locked bootloader? Cause I thought you wouldn't be able to install any kernels if it was locked.

fishvtt said:
Sorry, another question. What happens is that when I try to flash an ics kernel, it goes into an infinite bootloop, but when I flash a gingerbread kernel, it works fine. Is this a sign of a locked bootloader? Cause I thought you wouldn't be able to install any kernels if it was locked.
Click to expand...
Click to collapse
If you flash ics kernel, you won't be able to boot your old gb rom. Ics kernel only boot into ics rom.
When you flash ics kernel, go to recovery and install ics rom.
Sent from my R800i using xda app-developers app

Bakisha said:
If you flash ics kernel, you won't be able to boot your old gb rom. Ics kernel only boot into ics rom.
When you flash ics kernel, go to recovery and install ics rom.
Sent from my R800i using xda app-developers app
Click to expand...
Click to collapse
Thank you so much. Worked like a charm.
For future readers -
a. The r800a indeed does come with bootloader unlocked
b. It is normal for the phone to bootloop, Just go into recovery like normal and install the rom .zip. (It's usually tapping back while starting the phone, but if that doesn't work, try up volume or down volume)

[Q] Can i keep going on r800x Bootloader Unlock?

// It seem that i posted on the wrong section (had alot of tabs opened, sorry for my mistake, if any admin can move the post, will be AWZUM!)
Hello! im pretty new to unlocking bootloaders and stuff, and i wanted to know, i search here on XDA some tutorials and i found this one:
http://forum.xda-developers.com/showthread.php?t=1961298
How ever that tutorial covers 2.3.3, and im running 2.3.2 Stock Rom, also when going to sonymobile and following the steps to unlock the bootloader, itsays to dial *#*#7378423#*#* and check for rooting status, my device dosnt have that displayed ( as a side note, i rooted my deviced almost 2 years ago).
However, I Continued with the sony steps and when dialing *#06# , the cellphone does give me my MEID, i continued with the tutorial, and so far, i got in my mail, my key to unlock my bootloader.
My question is, can i proceed with unlocking my bootloader? i would like to install a custom kernel so i can overclock it, to play games a little more fluid, my current room its a Stock Rom, however ALL the bloatware apps are gone now, my phone just have about 12 apps, and its using 80 megas out of the 300 the xperia has. is this good or i can go better with a custom kernel and a smaller rom?also im from mexico, when doing this im gonna need to reactivate my cellphone or something on the company?
Cellphone: R800x (Custom Build.prop To Be Identified in the market as a R800i)
Status: Rooted
Rom: Stock Rom 2.3.2
Want To: Play games more fluid, try to overclock TO A SAFE SPEED. i dunno maybe 1.6? 1.5?
Thank you! C:

Update to 2.3.4 then it will show in service menu if you can unlock bootloader and if you want root then root through flashtool with 2.3.4
Sent from my LT30p using xda app-developers app

ScarletDreamz said:
// It seem that i posted on the wrong section (had alot of tabs opened, sorry for my mistake, if any admin can move the post, will be AWZUM!)
Hello! im pretty new to unlocking bootloaders and stuff, and i wanted to know, i search here on XDA some tutorials and i found this one:
http://forum.xda-developers.com/showthread.php?t=1961298
How ever that tutorial covers 2.3.3, and im running 2.3.2 Stock Rom, also when going to sonymobile and following the steps to unlock the bootloader, itsays to dial *#*#7378423#*#* and check for rooting status, my device dosnt have that displayed ( as a side note, i rooted my deviced almost 2 years ago).
However, I Continued with the sony steps and when dialing *#06# , the cellphone does give me my MEID, i continued with the tutorial, and so far, i got in my mail, my key to unlock my bootloader.
My question is, can i proceed with unlocking my bootloader? i would like to install a custom kernel so i can overclock it, to play games a little more fluid, my current room its a Stock Rom, however ALL the bloatware apps are gone now, my phone just have about 12 apps, and its using 80 megas out of the 300 the xperia has. is this good or i can go better with a custom kernel and a smaller rom?also im from mexico, when doing this im gonna need to reactivate my cellphone or something on the company?
Cellphone: R800x (Custom Build.prop To Be Identified in the market as a R800i)
Status: Rooted
Rom: Stock Rom 2.3.2
Want To: Play games more fluid, try to overclock TO A SAFE SPEED. i dunno maybe 1.6? 1.5?
Thank you! C:
Click to expand...
Click to collapse
You can unlock your bootloader with flashtool. Doublecheck your unlock code you got from Sony. Make sure you have correct drivers installed. Verizon kept the root status in service menu hidden... But it will work.

Yes it will work but as lordomn said check and make sure all your drivers are good then do it and you should be fine
sent from my Sony Ericsson xperia play ™ (r800x) using Tapatalk 4

Thank you guys! so far, i got my Xperia Play atm very clean, i got it whitout ANY bloatware, i think almost same as the "Cola Rom", it only have like 10 apps, as a base, and it uses 70 megas from the 300 that it has, so my question would be, if there are any GREAT benefits from unlocking the bootloader, on the "Gaming" side of this, like what can i do after unlocking the bootloader that will pump a little my device on the gaming way? O:

Well you can flash a new kernel and over clock your device
sent from my Sony Ericsson xperia play ™ (r800x) using Tapatalk 4

crazymonkey05 said:
Well you can flash a new kernel and over clock your device
sent from my Sony Ericsson xperia play ™ (r800x) using Tapatalk 4
Click to expand...
Click to collapse
Yeah, thats easy saying lo, but im particulari new to this.. theres alot of stuff involved, for example, im on 2.3.2 stock rom, i made a revocery image using CWM, and saved it somewhere safe, so here are the questions in order, ( if you can answer them in order would be great ):
1.- im on 2.3.2 stock rom, and i saw a kernel named 2.3.3 stock kernel with overclock, can i flash this with my stock rom and keep my stock rom, or i would need to flash first a 2.3.3 stock rom?
2.- when i want to test a new rom, do i need to flash the kernel first, or the rom?
3.- am i totaly safe with CWM and a nandroid backup?
4.- testing kernel is something safe? i mean can i go back?
5.- if something goes REALLY WRONG, can i flash the stock rom/kernel using flashtool?
6.- i found this http://forum.xda-developers.com/showthread.php?t=1605631 wich is the stock kernel 2.3.3 overclocked, but im on 2.3.2, can i flash it and stay on 2.3.2 or i need to flash the kernel and then the room, or first the rom and then the kernel?
7.- can i install CWM recovery on all the roms? i pretty much want to be safe, in case something goes wrong, or can i just use FLASHTOOL, to flash the stock firmware / kernel 2.3.2 and start over again?
8.- unlocking bootloader makes the xperia play able to use the flashtool, right? like, whitout unlocked bootloader, how does people flash roms for locked bootladers? using CWM recovery menu, the update .zip function? im pretty confussed right here, like, i unlocked my bootloader, so, i can use flashtool right, thats what unlocking the bootloader its for?

ScarletDreamz said:
Yeah, thats easy saying lo, but im particulari new to this.. theres alot of stuff involved, for example, im on 2.3.2 stock rom, i made a revocery image using CWM, and saved it somewhere safe, so here are the questions in order, ( if you can answer them in order would be great ):
1.- im on 2.3.2 stock rom, and i saw a kernel named 2.3.3 stock kernel with overclock, can i flash this with my stock rom and keep my stock rom, or i would need to flash first a 2.3.3 stock rom?
2.- when i want to test a new rom, do i need to flash the kernel first, or the rom?
3.- am i totaly safe with CWM and a nandroid backup?
4.- testing kernel is something safe? i mean can i go back?
5.- if something goes REALLY WRONG, can i flash the stock rom/kernel using flashtool?
6.- i found this http://forum.xda-developers.com/showthread.php?t=1605631 wich is the stock kernel 2.3.3 overclocked, but im on 2.3.2, can i flash it and stay on 2.3.2 or i need to flash the kernel and then the room, or first the rom and then the kernel?
7.- can i install CWM recovery on all the roms? i pretty much want to be safe, in case something goes wrong, or can i just use FLASHTOOL, to flash the stock firmware / kernel 2.3.2 and start over again?
8.- unlocking bootloader makes the xperia play able to use the flashtool, right? like, whitout unlocked bootloader, how does people flash roms for locked bootladers? using CWM recovery menu, the update .zip function? im pretty confussed right here, like, i unlocked my bootloader, so, i can use flashtool right, thats what unlocking the bootloader its for?
Click to expand...
Click to collapse
i think you can find the answer to alot of your questions here at FMA's thread it has a very good Q&A.... but anyhow ill answer them to the best of my ability.
1. im not sure as i never messed around with GB but i believe that 2.3.3 kernel will work on 2.3.2, but why would you want to stay on 2.3.2 when 2.3.3 has better performance?
2. Yes always flash the kernel first then the rom.
3. A Nandroid backup does not back-up the kernel as the partion its on CWM cant see... so if you get a faulty kernel flash or you flash a wrong kernel just use flashtool to get a working one.
4.yes you can always go back from flashing a kernel and yes its pretty much safe.
5. yes you can always flash with flashtool unless for whatever reason you damage the bootloader or the Trim Area then you have to seek for more advanced methods to recover the phone, dont worry tho if you dont accept an official update after unlocking the bootloader you will be fine.
6.i would be safe and upgrade to 2.3.3 using a .ftf so that you dont have any headaches.
7. yes you can flash CWM on all roms, however CWM is not part of the rom but the kernel and almost every costom kernel already has a recovery.
8.no everyone can use flashtool, unlocked or not except r800at models, no thats not what flashtool is for, flashtool is built to flash .ftf files to Sony Ericsson phones, it also has other functions like unlocking a bootloader and other things
if you have other questions just ask and i will do my best to answer them...

[Q] xperia ion TWRP install

Could someone kindly point me in the right direction to TWRP installation for the LT28h ion with locked bootloader?

There isnt one avaliable at all, i dont think its posible
Sent from my LT26i using XDA Premium 4 mobile app

dunno if it works on locked but try goomanager
Sent from my AOSP 4.3 Xperia S via Tapatalk

Envious_Data said:
There isnt one avaliable at all, i dont think its posible
Sent from my LT26i using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Okay thanks.

dad2dj said:
Could someone kindly point me in the right direction to TWRP installation for the LT28h ion with locked bootloader?
Click to expand...
Click to collapse
don't know if I should start a new topic or not since this is a few months old thread but I'm looking for a guide to install TWRP on Xperia ION with locked bootloader as well...
I know this is possible because I have a locked bootloader and TWRP on my Xperia ION right now...
I got the TWRP when I install CM10 for locked bootloaders by @MrGezz
I am on Slimbean rom now and I noticed that I retained TWRP even though I flashed a new rom... don't know if TWRP is baked on that rom or TWRP doesn't get erased even when flashing a new rom...
Anyway I want a guide to install TWRP because I want to try and compare the camera quality on an official stock rom and CM based rom, because I noticed that pictures taken from my camera started to get a little blurry and out of focus ever since I flashed a CM based rom.
And I think installing an official stock rom will remove TWRP on my phone...

dad2dj said:
Could someone kindly point me in the right direction to TWRP installation for the LT28h ion with locked bootloader?
Click to expand...
Click to collapse
You can install TWRP by Unlocking the Boot loader. But if you dont want to Unlock the Boot loader then you cannot install TWRP alone in a Locked Boot loader, But
There is another way. You can install Both CWM and TWRP together.
Try this CWM-TWRP Xperia ION Dual Recovery for locked/unlocked bootloaders
Follow the Instructions.

intoxic8 said:
don't know if I should start a new topic or not since this is a few months old thread but I'm looking for a guide to install TWRP on Xperia ION with locked bootloader as well...
I know this is possible because I have a locked bootloader and TWRP on my Xperia ION right now...
I got the TWRP when I install CM10 for locked bootloaders by @MrGezz
I am on Slimbean rom now and I noticed that I retained TWRP even though I flashed a new rom... don't know if TWRP is baked on that rom or TWRP doesn't get erased even when flashing a new rom...
Anyway I want a guide to install TWRP because I want to try and compare the camera quality on an official stock rom and CM based rom, because I noticed that pictures taken from my camera started to get a little blurry and out of focus ever since I flashed a CM based rom.
And I think installing an official stock rom will remove TWRP on my phone...
Click to expand...
Click to collapse
Captain Droid said:
You can install TWRP by Unlocking the Boot loader. But if you dont want to Unlock the Boot loader then you cannot install TWRP alone in a Locked Boot loader, But
There is another way. You can install Both CWM and TWRP together.
Try this CWM-TWRP Xperia ION Dual Recovery for locked/unlocked bootloaders
Follow the Instructions.
Click to expand...
Click to collapse
Yes, you will have TWRP and CWM on your locked bootloader Xperia ION. Just as Captain Droid said, follow the instructions.