[Q] Difference Between Unlocked and SIM Unlock - Android Q&A, Help & Troubleshooting

Hi,
I have a noob question. When you unlock bootloader, that's mean is SIM Unlock or it's completly different ? I know SIM unlock is to go with any phone company.
Thank you.

Completely different things. With the bootloader unlocked, you're able to install custom kernels, but the SIM Lock will remains (if you have it).

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[Q] Does having SPL and a flashed rom (miri's rom) mean my phone is unlocked aswell?

Just wondering if this means that my HD2 is unlocked. Also, is there anyway to check to see if it is without trying another sim card? Thanks
SPL & a Custom ROM will not SIM unlock your phone...if you bought the phone from from the carrier call them to get the unlock code or buy one online if you need SIM unlock.

Can i do the sim unlock via davinci after i've unlocked my bootloader? - Yes(ish)

I unlocked my X10 bootloader when it was released, since then i've realised I still had credits in my davinci account, so I thought I'd have a crack at sim unlocking it.
The question I have is, will this brick my device if flash the 2.1 software back, perform the unlock and then flash back to cm7?
Maybe no-one has tried it yet, but I'm looking for a sensible answer with some evidence to back it up.
Cheers ppl
Stu
OK, So yes I can sim unlock it with davinci, But now I'm back to having a locked bootloader which is probably because it rewrote s1_boot in doing the sim unlock.
Soooo, now I can use another network sim which is my main priority as i just switched contracts.
But I'd like to have an unlocked bootloader so i'm not crippled and can go back to FXP and not SE GB.
I know I could unlock the bootloader and not have network access but that defeats the object of having it sim unlocked.
Looking back, There are a few things that would make this a lot easier....
Hi!
I had the same problem.
I was able to unlock bootloader and running Linuxdx+GingerDX.
Then i wanted to unlock my phone, did it with davinci app and worked all just fine, but after trying unlock my bootloader again the sime network crashes.
I have tried both choices on my phone both semc unlock and seetool unlock.
The same problem.
Only way to rescue my bricked phone is to make a "new" unlock again.
Now i have paid a unlock a couple of times so i dont dare to try unlock bootloader again.
Well i really like LinuxDX+GingerDX.
I beleuve that i am stock with STOCK kernel and GingerDX until a solution is here...
Kind reegards
Eddie
eddiejohansen said:
Hi!
I had the same problem.
I was able to unlock bootloader and running Linuxdx+GingerDX.
Then i wanted to unlock my phone, did it with davinci app and worked all just fine, but after trying unlock my bootloader again the sime network crashes.
I have tried both choices on my phone both semc unlock and seetool unlock.
The same problem.
Only way to rescue my bricked phone is to make a "new" unlock again.
Now i have paid a unlock a couple of times so i dont dare to try unlock bootloader again.
Well i really like LinuxDX+GingerDX.
I beleuve that i am stock with STOCK kernel and GingerDX until a solution is here...
Kind reegards
Eddie
Click to expand...
Click to collapse
thanks for info.

[Q] Problem about bootloader of SK17

Good day !
I have come across a situation of unknown bootloader of SK17 .
I found some shop in Hong Kong is selling some cheap SK17 (not sure if it is the same as SK17i) . I asked the shop keeper and they said that the bootloader is locked , but without SIM lock .
So , will someone confirm me if this situation is possible ? As I read some post in this form it indicate that locked bootloader is usually because it is branded , i.e. SIM locked . If it is SIM free version does it mean I can make the bootloader unlock ?
And , what if the system shows "Bootloader unlockable ? No" ? Is there any way to work around this issue to make the bootloader unlock ?
Thanks so much !
Rgds,
Kurz
Hi!
A simlock is something totally different to the bootloader´s lock.
No Simlock means that you can use any sim of any provider you like and who´s band is supported by phone´s hardware.
The bootloader ist locked by sony basically to prevent people from removing the sony Firmware even if it is not branded. A second issue is probably to prevent people from unlocking and playing with the firmware who do not know what they do.
Before the lock of the bootloader it was easy for everyone with one-click-tools or similar to root the phone. This could have led to many RMA procedures at Sony
But there must be a possibility to unlock it due to the terms of open source software.
So there is no need for you to unlock the bootloader as it takes any simcard anyway.
What the issue about sk17i sk17 and sk17a is, I do not know yet. But I´m curious about it
hi... how to know that your xperia mini pro unlock already in bootloader?
my rooting status is,
Bootloader unlock allowed: YES
is it already unlock in bootloader?? or not
It meens that it is be allowed to unlock your bootloader. It means not that your bootloader *is* unlocked.
Hi Poedel ,
Yes I understand SIM locked and Bootloader locked is different . But I wish to install 3rd party roms (CM7 rulez) , so I still wish to know how to unlock the bootloader .
So maybe I change a little bit about my question .
1) a sim unlocked device with locked bootloader (bootloader unlock allowed : no) cannot unlock due to the SIM lock . Then will it allow to unlock if the device change to SIM unlocked ?
2) Any method to work around the locked bootloader (bootloader unlock allowed : no)
3) Any way to unlock the bootloader if IMEI code cannot be used to extract the unlock code ? As I know some of the shop will use flash rom writer to wipe with another device firmware and IMEI will changes (it happens last time when I buy a X01HT) .
Thanks a lot !
Rgds,
Kurz
Sent from my Milestone using XDA App
mkmonkey said:
Hi Poedel ,
Yes I understand SIM locked and Bootloader locked is different . But I wish to install 3rd party roms (CM7 rulez) , so I still wish to know how to unlock the bootloader .
So maybe I change a little bit about my question .
1) a sim unlocked device with locked bootloader (bootloader unlock allowed : no) cannot unlock due to the SIM lock . Then will it allow to unlock if the device change to SIM unlocked ?
this is still confusing The simlock does not take care at all if there is a bootloader-lock or not. I never ask someone if I am allowed, definetly not mr. simlock
2) Any method to work around the locked bootloader (bootloader unlock allowed : no)
3) Any way to unlock the bootloader if IMEI code cannot be used to extract the unlock code ? As I know some of the shop will use flash rom writer to wipe with another device firmware and IMEI will changes (it happens last time when I buy a X01HT) .
Click to expand...
Click to collapse
okay, usually you'll go to the sony's dev site bootloaderunlockl.sonyericsson.com (don't know the correct sub, could be correct) and authenticated by your IMEI and email you'll get the unlock code. Without IMEI you won't be able to unlock. But even if you IMEI changed you can try the current IMEI. What I think is that Sony just saves the Email and IMEI into a mySQL Database to cope with the situation if your device enters RMA à la "you unlocked, your fault". It would be rather not the way that they look if your current IMEI really belongs to the device there. I would simply try it. BUT!
There is a post where a method is shown to root your ph0ne without unlocking the bootloader.
So here are both links:
rooting without unlocking not tested by me (even not yet read *covering*)
default way like I did it
Dear Poedel ,
Thanks , that's exactly what I wish to know .
So in worst case if bootloader is not going to unlock in normal way , I should use the test point function to bypass it and flash another room and firmware into it , and unlock the bootloader again ?
Thanks very much !
Regards,
Kurz
Sent from my Milestone using XDA App

[Q] simunlock after unlocking bootloader

My phone is currently sim locked to my carrier but I want to unlock my sim as I am planning on switching to a different carrier. I've been reading about unlocking the bootloader and it seems there are issues with using 3rd party simunlocks before unlocking the bootloader unless you are using an setool2 unlock.
setool2 is far to expesnive for me and I would rather use a cheaper 3rd party unlock code. My question is if i were to do the bootloader unlock first since my phone is still locked...and then after my bootloader has been unlocked apply a 3rd party sim unlock code, will this cause issues?
Everything i've been reading about is about people doing sim unlock FIRST and then doing bootloader unlock. But i want to do bootloader unlock first and then do simunlock AFTER.
smok3yjk said:
My phone is currently sim locked to my carrier but I want to unlock my sim as I am planning on switching to a different carrier. I've been reading about unlocking the bootloader and it seems there are issues with using 3rd party simunlocks before unlocking the bootloader unless you are using an setool2 unlock.
setool2 is far to expesnive for me and I would rather use a cheaper 3rd party unlock code. My question is if i were to do the bootloader unlock first since my phone is still locked...and then after my bootloader has been unlocked apply a 3rd party sim unlock code, will this cause issues?
Everything i've been reading about is about people doing sim unlock FIRST and then doing bootloader unlock. But i want to do bootloader unlock first and then do simunlock AFTER.
Click to expand...
Click to collapse
I wanted to know the Exact same thing... I just got an unlock code from cellunlocker. but when i put in a diff sim card it says sim is perso locked. that's besides the point. I read that by doing bootloader unlock the cell manufacturer drops the IMEI i believe from the update list. Idk if they do it for the unlock code list too. or just drops your IMEI all together. I want to figure this out before doing a bootloader unlock...

SIM unlock vs other stuff

i was wondering, if you can flash cyanogen mod onto your phone, do you need to bother with SIM unlocking, or does that completely unlock your phone at that point? or, if you root your phone and unlock your bootloader, does that have ANY THING to do with SIM unlocking - does it render it unecessary? if SIM unlock is COMPLETELY separate, and always required (for freedom), then can any one recommend a reputable and reliable place online to do it?
thanks.

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