I've been trying to buy a Sony Xperia Ion (LT28AT) for use on T-Mobile USA where the bootloader is allowed to be unlocked. So far, all the devices I've looked at all say No.
I know I can still root an LT28AT where the bootloader unlock allowed = No, but I can't install custom ROMs and kernels, right?
But from reading threads here it seems some people can still install custom ROMs and kernels where the answer is No. Can anyone please clear this up for me?
Thanks!
With a locked bootloader you can use roms that are stock-based.
With an unlocked bootloader you can use roms that need another kernel, just like miui, cm 10 etc
w3nZ said:
With a locked bootloader you can use roms that are stock-based.
Click to expand...
Click to collapse
Does that include CyanogenMod ROMs like CM10, CM11 etc?
Also, with a locked bootloader can anyone tell me if I can install any kernels that will overclock?
THANKS!
CyanogenMod Roms need their own kernel, and to flash this kernel, you need an unlocked bootloader.
You cant flash any custom kernel on a locked bootloader.
You must unlocked bootloader before flash another kernel.
w3nZ said:
With a locked bootloader you can use roms that are stock-based.
Click to expand...
Click to collapse
So what ROMs are stock-based that are available on XDA?
U can actually flash cm 10 on u a locked boot loader... A developer @mrgeez is working on making cm10 rom for locked bootloaders... Some roms work on locked boot loader and some don't... But ideally don't buy a cell with locked bootloader.. Causes to many problems..
Sent from my lt28h running kitkat ??
Hit thanks if I helped.. ??
Sent from my Xperia ion using XDA Premium 4 mobile app
parthv21 said:
U can actually flash cm 10 on u a locked boot loader... A developer @mrgeez is working on making cm10 rom ...
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Click to collapse
That's not me sadly, you're probably thinking of someone else with a similar name...
Ya... I was talking about @MrGezz...
Sent from my Xperia ion using XDA Premium 4 mobile app
mrgeez said:
That's not me sadly, you're probably thinking of someone else with a similar name...
Click to expand...
Click to collapse
parthv21 said:
Ya... I was talking about @MrGezz...
Sent from my Xperia ion using XDA Premium 4 mobile app
Click to expand...
Click to collapse
that kinda funny , hahaha, but anyone who own xperia ion that want to test cm10 for LB can found it here
Sorry, @parthv21, your info is inaccurate. See below link:
[ROM][UNOFFICIAL][4.1.2] CyanogenMod 10 for LOCKED bootloaders(For Xperia Ion)
EEngineer said:
Sorry, @parthv21, your info is inaccurate. See below link:
[ROM][UNOFFICIAL][4.1.2] CyanogenMod 10 for LOCKED bootloaders(For Xperia Ion)
Click to expand...
Click to collapse
What's inaccurate about it? This is an exception because they managed to get CM10 working with a stock kernel. You can't get any higher versions though because those require an appropriate kernel that isn't stock anymore. There have been a lot of kernel changes between Android 4.1 and 4.2. So on locked bootloader you can install stockbased ROMs (like eXistenZ) and one particular version of CM10. Impossible to flash a custom kernel.
Unlocking the bootloader also has downsides though. Beyond Android 4.0, the Mobile Bravia Engine stops working on an unlocked bootloader. Without that, the colours are a bit more washed out, and the screen already isn't the most vibrant around (the Xperia S screen anyway, but the Xperia Ion screen isn't that different).
Redstarr1 said:
What's inaccurate about it?
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Click to collapse
EEngineer said:
I know I can still root an LT28AT where the bootloader unlock allowed = No, but I can't install custom ROMs and kernels, right?
But from reading threads here it seems some people can still install custom ROMs and kernels where the answer is No. Can anyone please clear this up for me?
Click to expand...
Click to collapse
Redstarr1 said:
This is an exception because they managed to get CM10 working with a stock kernel. You can't get any higher versions though because those require an appropriate kernel that isn't stock anymore. There have been a lot of kernel changes between Android 4.1 and 4.2. So on locked bootloader you can install stockbased ROMs (like eXistenZ) and one particular version of CM10. Impossible to flash a custom kernel.
Click to expand...
Click to collapse
So really a locked bootloader means I can't install any kernels, And I can only install ROMs compatible with my existing stock kernel.
Redstarr1 said:
Unlocking the bootloader also has downsides though. Beyond Android 4.0, the Mobile Bravia Engine stops working on an unlocked bootloader. Without that, the colours are a bit more washed out, and the screen already isn't the most vibrant around (the Xperia S screen anyway, but the Xperia Ion screen isn't that different).
Click to expand...
Click to collapse
Good to know!
Related
Hi, I am new to Android and rooting and had a couple questions. I will be getting the Xperia Play R800x soon. If you get the bootloader unlocked from SE, do you still need to root the device? I have been trying to get everything ready for when I get the phone. I have Android SDK and Flashtool installed. If I want to get the NXT Light Edition Rom, do I need a custom kernel as well? Thanks.
tbrooks9 said:
Hi, I am new to Android and rooting and had a couple questions. I will be getting the Xperia Play R800x soon. If you get the bootloader unlocked from SE, do you still need to root the device? I have been trying to get everything ready for when I get the phone. I have Android SDK and Flashtool installed. If I want to get the NXT Light Edition Rom, do I need a custom kernel as well? Thanks.
Click to expand...
Click to collapse
If you get your bootloader unlocked and flash a custom kernel/ROM no you dont need to root as nearly all, if not all come with root. Seen as you have flashtool and everything else use a custom kernel. If you want to return to stock then just reflash a ftf file for r800x , make sure you dont flash a ftf for r800i though. I dont have the link handy but there is a thread here with all ftf files. Just search in XdA
Sent from my GT-I9300 On Official JB
tbrooks9 said:
Hi, I am new to Android and rooting and had a couple questions. I will be getting the Xperia Play R800x soon. If you get the bootloader unlocked from SE, do you still need to root the device? I have been trying to get everything ready for when I get the phone. I have Android SDK and Flashtool installed. If I want to get the NXT Light Edition Rom, do I need a custom kernel as well? Thanks.
Click to expand...
Click to collapse
Just a heads up.... The NXT light rom is gsm... It won't work on the r800x
Sent from my R800x
Thank you Wedgess and Lordomn. Since the NXT light is for the GSM version, would you recommend the COLA rom, or maybe SlimBean or CM9?
tbrooks9 said:
Thank you Wedgess and Lordomn. Since the NXT light is for the GSM version, would you recommend the COLA rom, or maybe SlimBean or CM9?
Click to expand...
Click to collapse
Think CosmicDans MIUI for ICS is for cdma. Id say its probably one of the best performance wise for ICS. You could also check out my PACMan ROM gor JB i uploaded a cdma version which works fine touchpads are also supported, camera/video ect works. Also instead of saying thanks click the thanks button instead
Sent from my GT-I9300 On Official JB
slim bean performs very well also.
Yesterday I flashed on my Xperia S GB 6.0.A.3.76 FW. after testing a lot of roms like CM9.1/CM10/KA Xperia/Stock ICS and much more ,I understood that the perfomance with GB FW is the best ever... Everything works like charm ,camera is really great ,especially with "[MOD][CAM]GBXperia S|Video 1080p >20mb Bitrate|720p >15mb Bitrate|>100% Image quality".
Gaming perfomance is so smooth... no lags at all ,GTA VC works and it really great. Also Mobile Bravia Engine is a very huge advantage to me!
Waiting now for the official JB release from Sony ,till then I'm staying with GingerBread FW.
:good:
I thought bravia engine is not working to those who already unlocked bootloader even if you relocked it..yup I agree very smooth when you in gb because I try to reflashed it to recover the drm keys but im failed..music download info is not working also bravia engine..try stock based rom, try xtx7 so smooth also for me it is the best stock based rom and I modify it gx home preferences and tab&grid, all this mod and rom was created by niaboc..see attached
Sent from my LT26i using xda premium
jemju_xps-user said:
I thought bravia engine is not working to those who already unlocked bootloader even if you relocked it..yup I agree very smooth when you in gb because I try to reflashed it to recover the drm keys but im failed..music download info is not working also bravia engine..try stock based rom, try xtx7 so smooth also for me it is the best stock based rom and I modify it gx home preferences and tab&grid, all this mod and rom was created by niaboc..see attached
Sent from my LT26i using xda premium
Click to expand...
Click to collapse
My BL is unlocked and I didn't relocked it. BE works well on GB FW ,but not on ICS. Also tried XTX7 ,but the perfomance was to much sluggish ,games worked on a very low FPS.
One question: If I relock bootloader I can use PCC to update my phone without bricking it right?
brahweiz said:
One question: If I relock bootloader I can use PCC to update my phone without bricking it right?
Click to expand...
Click to collapse
Yes.
Can you give me the link to the fw? Xdafileserver doesn't have that fw anymore
brahweiz said:
Can you give me the link to the fw? Xdafileserver doesn't have that fw anymore
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Click to collapse
http://www.xdafileserver.nl/Files/S... (LT26i)/STOCK ROMS/GB/LT26_6.0.A.3.76_TW.zip
I'm looking for .73 Generic Singapore but thanks anyway
I have unlocked bootloader on custom ics rom and my MBE is not working, does relocking bootloader and switching back to gingerbread will make MBE to work again ?
My MBE was working perfectly on ICS before unlocking my phone's bootloader.
Sent from my Xperia S using xda premium
Xocus said:
I have unlocked bootloader on custom ics rom and my MBE is not working, does relocking bootloader and switching back to gingerbread will make MBE to work again ?
My MBE was working perfectly on ICS before unlocking my phone's bootloader.
Sent from my Xperia S using xda premium
Click to expand...
Click to collapse
It should work. I also had Locked BL with ICS .452 FW and MBE worked great... After unlocking BL ,MBE never worked for me on ICS ,even on .452 FW. Now I'm on GB and unlocked BL.
Never actually tried GB on my S, as soon as I bought it I updated to ICS. I'll give GB a shot and see how it is
Hi, do I install this using recovery? or do I need to use Flash Tool? The one that was posted for the stock GB firmware. Thanks!
http://www.xdafileserver.nl/Files/So....A.3.76_TW.zip
:silly:
jfdsmabalot said:
Hi, do I install this using recovery? or do I need to use Flash Tool? The one that was posted for the stock GB firmware. Thanks!
http://www.xdafileserver.nl/Files/So....A.3.76_TW.zip
Click to expand...
Click to collapse
You use flashtool
davidbar93 said:
http://www.xdafileserver.nl/Files/S... (LT26i)/STOCK ROMS/GB/LT26_6.0.A.3.76_TW.zip
Click to expand...
Click to collapse
Ok, so I need to download the zip file then extract the ftf file and put it inside the flashtool firmware folders then flash through flash tool. After that I can also use fast boot to flash Doom Kernel for root. Ok, Got it. Thanks!
davidbar93 said:
It should work. I also had Locked BL with ICS .452 FW and MBE worked great... After unlocking BL ,MBE never worked for me on ICS ,even on .452 FW. Now I'm on GB and unlocked BL.
Click to expand...
Click to collapse
I successfully downgraded my xperia s and MBE is also working,my bootloader is also unlocked.
What if I relock my bootloader and flashed ICS 6.1.a.2.45, will MBE work?
Xocus said:
I successfully downgraded my xperia s and MBE is also working,my bootloader is also unlocked.
What if I relock my bootloader and flashed ICS 6.1.a.2.45, will MBE work?
Click to expand...
Click to collapse
No
I flashed Doomkernel v4, but install zip from SD card wasn't working. Weird. As soon as I selected the option something got broken, I could not select any zip.
neizel said:
No
Click to expand...
Click to collapse
or update it OTA?
is there root for 2.3.7? I was thinking of switching back to Gb too before but not sure if it can be rooted thats why im with ICS for now.
tried rooting gingerbread but kept bootlooping, one more try and it looks like it might have to be going back to ICS.
hi i have a xperia play r800x and i see that the trueancestor rom is compatible with my phone and everything works good except the video recording, every time i stop recording it forces closing how i can fix that?
sorry for my english xD
Fiti_99 said:
hi i have a xperia play r800x and i see that the trueancestor rom is compatible with my phone and everything works good except the video recording, every time i stop recording it forces closing how i can fix that?
sorry for my english xD
Click to expand...
Click to collapse
what kernel are you using? if you are using stock lupus gb/ics 720 p version you might be using a 420 p setting of recording. it is a known issue
hi i have the stock kernel because my bootloader is not unlocked
sorry for my english xD
Fiti_99 said:
hi i have the stock kernel because my bootloader is not unlocked
sorry for my english xD
Click to expand...
Click to collapse
Well since you have a r800x I suggest you unlock your boot loader and flash a new kernel
sent from my Sony Ericsson Xperia Play™(r800x) Running Slimbean 3.0 using Tapatalk 2™
ok what is the best kernel for r800x and is there any good ics rom?
Fiti_99 said:
ok what is the best kernel for r800x and is there any good ics rom?
Click to expand...
Click to collapse
on my personal opinion True Ancestor Rom by Jjkkyu its my daily driver and everything is working fine and battery life is good and i use it together with Lupus ICS_v12
ok that rom you mentioned is compatible with r800x??? how i unlock my bootloader?? and if i unlock my bootloader and i downgrade with flashtool my bootloader is still unlocked??
Fiti_99 said:
ok that rom you mentioned is compatible with r800x??? how i unlock my bootloader?? and if i unlock my bootloader and i downgrade with flashtool my bootloader is still unlocked??
Click to expand...
Click to collapse
heres the link for the rom http://forum.xda-developers.com/showthread.php?t=2210559&page=2
you can also find in the android dev section how to unlock your bootloader
ok but is compatible with r800x, games camera etc and how do i downgrade without relocking my bootloader
edit: i also saw the xdark rom and looks good what rom is the best that it will give full xperia 2011 ics experience with completely funcionality
edit2: ok i have Bootloader unlock allowed missing so how i can unlock my bootloader
sorry for my english
That's not compatible with r800x. Its only for gsm. It'll boot but it wont give you service and if you want camera and game pads you cant install on locked bootloader. Also download an ftf and flash with flashtool to downgrade without unlocking. Check out fma965s guides. They are very helpful and explain how to do everything very well
Sent from my r800x using xda developers app
ok i know, i dont care about service, i only want a ics rom with funcionaly at 100%
with camera and touchpads and how i UNLOCK MY BOOTLOADER WITH Bootloader unlock allowed missing
and i ask of how to downgrade without RELOCKING bootloader, no UNLOCKING
edit: ok i dont care if it is an ics or, jb or gb rom I ONLY WANT A FIX FOR CAMERA ON DIXPERIA 2 OR XPERIA NXT ROM OR TA GB ROM WITH A LOCKED BOOTLOADER
edit2k i have unlocked my bootloader so can someone please give a tutorial of how to install the xdark ics rom, i have r800x with 2.3.3
Do not install ANY GSM GB roms they are incompatable to the R800x you will get a black screen instead of a home screen. You can only install ics and jb roms. but that requires a unlocked bootloader. If you dont have your bootloader unlocked your stuck with what you have.
chery2k said:
Do not install ANY GSM GB roms they are incompatable to the R800x you will get a black screen instead of a home screen. You can only install ics and jb roms. but that requires a unlocked bootloader. If you dont have your bootloader unlocked your stuck with what you have.
Click to expand...
Click to collapse
Actually you can install gsm gb roms and flash xdarkmarios patch right afterwards and it'll boot fine but no service ofcourse
Sent from my R800x using xda app-developers app
yes i flashed several gsm roms with darkmario pathc and all works excpt the video recording in high or youtube high (it works in the other modes)
ok i cant find any fix to video recording or any good roms (due to that all the roms for r800x are themed stock roms and my bootloader is locked) so i will stay in stock rom with my own adds
sorry for my english
I have a rooted Z1C with an unlockable bootloader. I've browsed through the development sections but couldn't see any custom ROM available.
Are we stuck with original firmware or is there something I've missed?
I would like all the tweaks and customisations which after-market ROM flashing gives but many seem to require unlocked BL.
http://forum.xda-developers.com/sony-xperia-z1-compact/development
There are few roms for locked bootloader... The ones with [LB] in title...
Sent from my D5503 using Tapatalk 2
Risingson said:
I've browsed through the development sections but couldn't see any custom ROM available.
Click to expand...
Click to collapse
This is why I'm less active these days.
Sent from the app on my Z1C...
Well ok thanks, not many with a range of custom mods and some in the installation instructions for locked bootloader say first thing is to unlock it!
Hopefully more to come soon.
So as the thread says, this is a single question: I've been a Cyanogenmod user for many years, and now that I have an Xperia ZL with locked bootloader, I want to know what options I have for custom roms. I've tried MIUI but haven't found other roms to try.
sorry ignore. wrong post
Also wondering this. Every time I try to flash omni or cm with twrp or philz for locked bootloaders my phone bricks and I need to recover it with xperia tools.
you need unlocked bootloader to install custom roms/kernels.
supaflyx3 said:
Also wondering this. Every time I try to flash omni or cm with twrp or philz for locked bootloaders my phone bricks and I need to recover it with xperia tools.
Click to expand...
Click to collapse
Locked bootloaders cannot flash ROMs which depend on a different kernel (such as Cyanogenmod). Bad luck for us, bro.
foomanjackel said:
you need unlocked bootloader to install custom roms/kernels.
Click to expand...
Click to collapse
Yes, but which ROMs are there available for us, unfortunate locked bootloader users?
Aoi v1 said:
Yes, but which ROMs are there available for us, unfortunate locked bootloader users?
Click to expand...
Click to collapse
eXistenZ is nice. try looking in the "Xperia ZL Android Development" section. look at the titles of each thread. look for ones that start something like this:
[ROM][LB][UB]
simply put, it means its a rom ([ROM]) for locked bootloaders ([LB]} and unlocked bootloaders ([UB])
those are the ones you can use.
Thanks mate, I'll take a look