Database Develop

Unlocking + custom ROM's?

I'm on Openswift 2.2.1 and I'm thinking of unlocking my phone, I think I'll have to go back to 2.1 to put in the code using a USSD code, but when I flash various custom ROM's, will I lose my unlock?

again no lol

Bootloader!

Hi, this is my first post on xda so plz take it easy on me, I need people to answer some important questions before I unlock my bootloader. I checked my phone's manufacture date and its good to go.
Please answer all questions.
1) What is the best and easiest way of unlocking the bootloader?
2) After unlocking my bootloader, how do I switch ROMs, Is it like normal or do I need to go back to 2.1 first AND GO BACK TO STOCK KERNEL?
3) Do I need to be on stock ROM to unlock my boorloader?
4) What is the best kernel and ROM combination for you? - PLEASE ANSWER THE POLL ABOVE.
5) Can I Sim Unlock my phone later after unlocking the bootloader?
6) How do I return back to stock kernel?
7) If I go back to stock ROM will my bootloader be locked again?
8) If my phone gets accidentally bricked during bootloader unlock process, can I unbrick it?
Please answer all my questions. And please explain everything as I am a total noob. Thanks.

TheUnknownCopy said:
Hi, this is my first post on xda so plz take it easy on me, I need people to answer some important questions before I unlock my bootloader. I checked my phone's manufacture date and its good to go.
Please answer all questions.
1) What is the best and easiest way of unlocking the bootloader?
2) After unlocking my bootloader, how do I switch ROMs, Is it like normal or do I need to go back to 2.1 first AND GO BACK TO STOCK KERNEL?
3) Do I need to be on stock ROM to unlock my boorloader?
4) What is the best kernel and ROM combination for you? - PLEASE ANSWER THE POLL ABOVE.
5) Can I Sim Unlock my phone later after unlocking the bootloader?
6) How do I return back to stock kernel?
7) If I go back to stock ROM will my bootloader be locked again?
8) If my phone gets accidentally bricked during bootloader unlock process, can I unbrick it?
Please answer all my questions. And please explain everything as I am a total noob. Thanks.
Click to expand...
Click to collapse
YEAH...what the proper prepaired????
this my answer..
1) look on my signature (easiest guide unlocking bootloader)
2) flash custom kernel and flash rom (no need back to 2.1 or stock)
3) Yes Unlocking with stock rom
4) It depend on U (for me i wanna the rom with the nice and beauty colour one)
I use "TIM3 v1" + "nAa v8b" ( I mean where u wanna go with fast speed?)
5) YES
6) Use flash tool and download stock kernel (search it on XDA)
7) NO -u can unlock by easiest guide (on my signature there)
8) U can't DIY...(if your phone still under warranty send to them)
for me i got 4 times hardbricked and they repair for me without fee
BUT PLEASE MAKE SURE YOUR DEVICE IS 11W28 BELOW
(see on phone..PULL OUT YOUR BATTERY AND YOU CAN FIND THERE
hope this help

1.The easiest way to unlock bootloader is with s1 tool. Just connect your phone with usb debugging on and open s1tool and unlock bootloader.( It might brick your phone, I dont recommend you to unlock bootloader)
2.Unlocking bootloader does not change your rom, If you are on 2.1 then it will not affect it. Switching between roms is very easy, just use recovery.For kernel use flashtool
3.You dont need to be on stock rom to unlock bootloader, it can be done through custom roms also
4.From my opinion alfs v6+gingierdx is great. It is very fast for daily use but not very good for hd games.
5.Dont know
6.You can always return back to stock kernel using flashtool and stock kernel ftf
7.Your bootloader will not be lock if you go back to stock rom
8.You cant unbrick your phone if it is bricked during unlocking bootloader, you have to send it to sony ericsson for repair

Thanks very much guys, but I am scared if I brick my device as I can't unbrick it then

I told u...check the MFC date (pull out your battery)
see the **W** (date of manufactoring)
If '11W28' = 2011 week 28
bellow 11W28 is safe..
Above 11W29 is risky..
but nobody force u to unlocking it..
but (also) some nice and beauty rom need custom rom
it totally can't run on stock rom...that why i got my 4th bricked yesterday..
and got a new X8 today with 11W23....
release my tension because can't unlocking bootloader

TheUnknownCopy said:
Thanks very much guys, but I am scared if I brick my device as I can't unbrick it then
Click to expand...
Click to collapse
if u have doubts then better not go for it,der are lot of roms which runs well on stock kernel too

you always find solution i hawe bricked phon and now its fine again xda will help you if something go wrong

luki2411 said:
you always find solution i hawe bricked phon and now its fine again xda will help you if something go wrong
Click to expand...
Click to collapse
NO.. not for a hardbrick....
check out some newest threads here which hard brick because of bootloader unlock.. almost all of them not solved and go to SE center..

Ya unlocking bootloader is a bit risky!
Be Careful if your planning to unlock it.

Thanks guys for your help, I really apreciate it. For me the date is not a problem. However is there a possibility of getting bricked during unlocking the bootloader? Well atleaset has anyone bricked their device by unlocking the bootloader and fix it without sending the phone?
nelikp said:
I told u...check the MFC date (pull out your battery)
see the **W** (date of manufactoring)
If '11W28' = 2011 week 28
bellow 11W28 is safe..
Above 11W29 is risky..
but nobody force u to unlocking it..
but (also) some nice and beauty rom need custom rom
it totally can't run on stock rom...that why i got my 4th bricked yesterday..
and got a new X8 today with 11W23....
release my tension because can't unlocking bootloader
Click to expand...
Click to collapse
U mean if we go back to stock 2.1 with unlocked bootloader, we get bricked?

1) What is the best and easiest way of unlocking the bootloader? From 2nd reply.
2) After unlocking my bootloader, how do I switch ROMs, Is it like normal or do I need to go back to 2.1 first AND GO BACK TO STOCK KERNEL?
You don't need to go back to stock. The unlock won't do a thing with the rom.
3) Do I need to be on stock ROM to unlock my boorloader?
I could only unlock my bootloader from stock 2.1 (tried under GingerDX), but from stock it was easy.
4) What is the best kernel and ROM combination for you? - PLEASE ANSWER THE POLL ABOVE.
For me it's FroyoPro 2.3 ans Alfs
5) Can I Sim Unlock my phone later after unlocking the bootloader?
Can't say... mine was simfree out of the box. (If your phone is not simfree be aware! not all can be unlocked and could cause hard brick)
6) How do I return back to stock kernel?
Just flash back stock kernel file.
7) If I go back to stock ROM will my bootloader be locked again?
No, the bootloader cannot be locked again.
8) If my phone gets accidentally bricked during bootloader unlock process, can I unbrick it?[/B]
At home it is really unlikeley. There are special cables that can do the trick, but they need an expertised technician and a lot of money (for the cable)
Hope it helped for you
My phone is a 11W23 white one with cypress and is unlocked. For You what is the best? What You want? Speed, stability, low battery drainage, cool 3D games etc... For me it was little battery use and high speed with a tad of cool UI.. for this FroyoPro 2.3 and Alfs (Alfs is not needed for froyo pro! so no need to unlock only for that)

Ok thanks guys for answering all my questions about unlocking bootloader. All my doubts are clear

[Q] Buying Xperia Z need some questions answerd

Hey there!
I'm about to buy a Xperia Z but I do have a few questions first:
1. Whats the difference between locked and unlocked bootloaders. I mean if I root my Z with locked bootloaders will I be able to flash every Custom Rom or are there Roms which will only be working with unlocked bootloaders?
2. What exactly can the Flashtool do? Is it a bit like ODIN for Galaxy Devices? Does the Z have a Download mode like the Galaxy S3 so I can flash a Stock firmware anytime I want?
Thanks for ur answers.

1- custom roms for locked bootloader are few and limited.
You need unlocked BL to flash custom.kernels,cm,aopk roms....
2-Yes flashtool is same as odin but with many more features,like rooting,unlocking the BL,flashing stock roms.....
Sent from my C6603 using xda premium

zoecker said:
Hey there!
I'm about to buy a Xperia Z but I do have a few questions first:
1. Whats the difference between locked and unlocked bootloaders. I mean if I root my Z with locked bootloaders will I be able to flash every Custom Rom or are there Roms which will only be working with unlocked bootloaders?
2. What exactly can the Flashtool do? Is it a bit like ODIN for Galaxy Devices? Does the Z have a Download mode like the Galaxy S3 so I can flash a Stock firmware anytime I want?
Thanks for ur answers.
Click to expand...
Click to collapse
Locked BL you can still root but cannot flash custom ROMs (but I'm not 100% sure on that see post above by gm007)
Unlocking the BL you lose DRM keys FOREVER and BE2 won't work anymore (some claim they can still make BE2 work)
FlashtTool can easily flash STOCK ROMs without rooting or unlocking BL.

shadowboy23 said:
Locked BL you can still root but cannot flash custom ROMs (but I'm not 100% sure on that see post above by gm007)
Unlocking the BL you lose DRM keys FOREVER and BE2 won't work anymore (some claim they can still make BE2 work)
FlashtTool can easily flash STOCK ROMs without rooting or unlocking BL.
Click to expand...
Click to collapse
Before yesterday I had a locked BL and I had a custom rom, you just can't install a custom Kernel when your BootLoader is locked.
Unlocking your BL will cause your drm keys to be lost that's true, but you can save the partition your keys are stored on and you can re-flash the partition to restore the DRM keys. (Did that yesterday) It can be tricky though, Gm007 knows everything about it
http://forum.xda-developers.com/showthread.php?t=2234627

Thanks for the link Dsteppa!

kernel effects charging time?

Does kernel effect the total charging time of the device? I am facing issues after flashing a custom rom and kernel and I have no idea what could be the possible cause of this

If you face a longer charging after flashing a custom rom with custom kernel then yes, it can be.

phantom4u said:
Does kernel effect the total charging time of the device? I am facing issues after flashing a custom rom and kernel and I have no idea what could be the possible cause of this
Click to expand...
Click to collapse
Yes
kernel means how hardware works.
search for a kernel that its developer mentioned fast charging or something related to power.
and good choice for xperia devices is DoomLord Kernel;
DoomLord Kernel
:good:

Great! so either I have to unlock bootloader or move back to stock as the current kernel isn't working well for me

phantom4u said:
I have to unlock bootloader or move back to stock as the current kernel isn't working well for me
Click to expand...
Click to collapse
For DoomLord kernel you have to have Unlocked Bootlader and do not Relock your Bootlader on any Custom kernel because you will brick your phone. Try DoomLord and then if you will not be satisfied go back to Stock.

eclyptos said:
For DoomLord kernel you have to have Unlocked Bootlader and do not Relock your Bootlader on any Custom kernel because you will brick your phone. Try DoomLord and then if you will not be satisfied go back to Stock.
Click to expand...
Click to collapse
Unlocked and now going for DoomLord... let's see

Downgraded, rooted, now want to install.... quick question.

Hi, thanks for reading,
Ok so my 6903 z1, i've downgraded it to .534, rooted it, installed dualrecovery and am sitting here wondering where to go next.
I wouldn't mind unlocking the bootloader so that I could install other kernels such as pimped kernel. But reading the dualrecovery thread it seems that it is only if you are using the original kernel. So my main question is, what should i do next?
use recovery to flash a zip of a new rom then unlock bootloader then flash a supported recovery?
or should i unlock bootloader now and then new rom etc? (was concerned about the camera issue unlocking the bootloader on <4.3 roms.... will it be "fixed" if i was running on a newer "flashed via recovery" ROM?)
any help is appreciated as I don't want to bugger up the phone like i somehow managed to last time i tried all this (had the IMEI disappearing issue)

If you want to unlock the boot, there is was no need to downgrade to root
Just backup your TA, unlock the boot, flash a custom kernel of your choice then flash away

oh ok. well i've done it now. although I've just checked my service menu
First, you should confirm that it is possible to unlock the boot loader of your phone by checking the service menu. In your phone, open the dialler and enter *#*#7378423#*#* to access the service menu.
In your phone, tap Service info > Configuration > Rooting Status. If Bootloader unlock allowed says Yes, then you can continue with the next step. If it says No, or if the status is missing, your device cannot be unlocked.
Click to expand...
Click to collapse
and it says bootloader unlock allowed: No
So i'm guessing I randomly cannot unlock it anyway? (any reason why if that is the case?)

thefunkygibbon said:
oh ok. well i've done it now. although I've just checked my service menu
and it says bootloader unlock allowed: No
So i'm guessing I randomly cannot unlock it anyway? (any reason why if that is the case?)
Click to expand...
Click to collapse
If that it saying then no way around to unlock your bootloader. BTW, stock kernel isn't that bad and with root you will be able to customize your room and get some tweeks.

eclyptos said:
If that it saying then no way around to unlock your bootloader. BTW, stock kernel isn't that bad and with root you will be able to customize your room and get some tweeks.
Click to expand...
Click to collapse
so if i cannot unlock bootloader, does that mean i wont be able to use custom roms like Paranoid android etc which run off of CM and presumably a CM kernel?

and is it worth trying to unlock the bootloader in flashtool anyway just to see?
What options/next steps do i have then if i cant flash a custom rom due to not being able to use a different kernel?
Guess i can flash a modified stock rom and thats about it?

thefunkygibbon said:
so if i cannot unlock bootloader, does that mean i wont be able to use custom roms like Paranoid android etc which run off of CM and presumably a CM kernel?
Click to expand...
Click to collapse
Unfortunately No, anything based on Custom Kernels you cannot install. Everything based on Stock Kernel you can Install, even Custom Roms.

oh bloody hell. ok so i'm now stuck in a sony logo boot loop after installing romaur v8 and installing the kernel (561) which it told me to.
any ideas what to do? guessing i'm going to have to flash the old 4.2.2 rom from scratch again

ok so now i'm back to .534 [nut] and rooted. any tips on where to go next so that i dont get stuck in another bootloop???

thefunkygibbon said:
ok so now i'm back to .534 [nut] and rooted. any tips on where to go next so that i dont get stuck in another bootloop???
Click to expand...
Click to collapse
Just any Rom based on Stock Kernel.

eclyptos said:
Just any Rom based on Stock Kernel.
Click to expand...
Click to collapse
I thought the romaur rom Was based on stock. Ho hum. Installed the pure stock one and it was OK thanks.

In Android developement thread all roms are based on stock - in original Android developement they are based on pure android.
Bootlooping is mostly caused when flashing wrong bootbundle/kernel.
Sent from my C6903 using XDA Premium 4 mobile app

@punkt, nice your avatar, that is what I call HD..lol..