Ok. I have searched for hours and hours with no result. I have a Sony Ericsson X10a ATT labeled phone. i got it booting to the Xperia logo and no further. I was able to get the global generic x10i rom flashed to it so it would at least boot into android. it does not have a signal and says the sim will not work with att network. what ive done:
Flashed Global generic x10i 2.1a rom with flashtool 0.8 (the only stock firmware link that works)
Rooted with flashtool
s1tool reports NOT RECOGNIZED SIMLOCK CERTIFICATE
Ive tried to force SPCC to flash stock rom
Update service says its up to date
I can get it into flashmode no problem, it does boot normally into android, i can get into recovery with cwm5
it has no signal as of now.
Flashtool reports it as rooted.
I need to get this thing at least back to stock and working with a north american at&t sim card. if i can get a custom rom, great, if not ill deal with stock. if its SOL, its going thru the chipper
my hat is off to developers and programmers but I can do without the "you should of done this or that." i really appreciate any help. i just need to get it working thanks in advance
itstheburns said:
Ok. I have searched for hours and hours with no result. I have a Sony Ericsson X10a ATT labeled phone. i got it booting to the Xperia logo and no further. I was able to get the global generic x10i rom flashed to it so it would at least boot into android. it does not have a signal and says the sim will not work with att network. what ive done:
Flashed Global generic x10i 2.1a rom with flashtool 0.8 (the only stock firmware link that works)
Rooted with flashtool
s1tool reports NOT RECOGNIZED SIMLOCK CERTIFICATE
Ive tried to force SPCC to flash stock rom
Update service says its up to date
I can get it into flashmode no problem, it does boot normally into android, i can get into recovery with cwm5
it has no signal as of now.
Flashtool reports it as rooted.
I need to get this thing at least back to stock and working with a north american at&t sim card. if i can get a custom rom, great, if not ill deal with stock. if its SOL, its going thru the chipper
my hat is off to developers and programmers but I can do without the "you should of done this or that." i really appreciate any help. i just need to get it working thanks in advance
Click to expand...
Click to collapse
did you try to unlock your bootloader ??
itstheburns said:
Ok. I have searched for hours and hours with no result. I have a Sony Ericsson X10a ATT labeled phone. i got it booting to the Xperia logo and no further. I was able to get the global generic x10i rom flashed to it so it would at least boot into android. it does not have a signal and says the sim will not work with att network. what ive done:
Flashed Global generic x10i 2.1a rom with flashtool 0.8 (the only stock firmware link that works)
Rooted with flashtool
s1tool reports NOT RECOGNIZED SIMLOCK CERTIFICATE
Ive tried to force SPCC to flash stock rom
Update service says its up to date
I can get it into flashmode no problem, it does boot normally into android, i can get into recovery with cwm5
it has no signal as of now.
Flashtool reports it as rooted.
I need to get this thing at least back to stock and working with a north american at&t sim card. if i can get a custom rom, great, if not ill deal with stock. if its SOL, its going thru the chipper
my hat is off to developers and programmers but I can do without the "you should of done this or that." i really appreciate any help. i just need to get it working thanks in advance
Click to expand...
Click to collapse
i think u should reinstall the stock firmware using the repair option in SEUS and then proceed with a proper tutorial
thinkDHRUVIL said:
i think u should reinstall the stock firmware using the repair option in SEUS and then proceed with a proper tutorial
Click to expand...
Click to collapse
I have tried with the same result, no software found for your device. i dont have an option to repair the phone with seus. i even tried spcc.
Yes, i used x10 bootloader unlock tool, says it was successful.
itstheburns said:
I have tried with the same result, no software found for your device. i dont have an option to repair the phone with seus. i even tried spcc.
Yes, i used x10 bootloader unlock tool, says it was successful.
Click to expand...
Click to collapse
Did you have a network locked phone? I mean locked to a specific network operator?
Sent from my X10i
THeLogiC said:
Did you have a network locked phone? I mean locked to a specific network operator?
Sent from my X10i
Click to expand...
Click to collapse
its an att phone, i want to use it on att network. i was able to flash a rom, but i cannot follow where to find a radio or baseband or whatever it is i need to get it to communicate with the network. i dont know if this was ever modded before i got it or unlocked or whatever was done to it
itstheburns said:
its an att phone, i want to use it on att network. i was able to flash a rom, but i cannot follow where to find a radio or baseband or whatever it is i need to get it to communicate with the network. i dont know if this was ever modded before i got it or unlocked or whatever was done to it
Click to expand...
Click to collapse
1) can you post your baseband and firmware you are using right now??
2) try relocking bootloader using flashtool and see if you get your signal back
THeLogiC said:
1) can you post your baseband and firmware you are using right now??
2) try relocking bootloader using flashtool and see if you get your signal back
Click to expand...
Click to collapse
ok baseband is 2.1.54 and i dont see a specific firmware version listed. i have kernal ver 2.6.29-fxp [email protected] #1
Sorry, im used to htc modding, so much easier
ill try relocking the bootloader now
itstheburns said:
ok baseband is 2.1.54 and i dont see a specific firmware version listed. i have kernal ver 2.6.29-fxp [email protected] #1
Sorry, im used to htc modding, so much easier
ill try relocking the baseband now
Click to expand...
Click to collapse
I guess you are on 2.1 firmware. So the baseband is right.
The only option is relocking bootloader via flashtool.
THeLogiC said:
I guess you are on 2.1 firmware. So the baseband is right.
The only option is relocking bootloader via flashtool.
Click to expand...
Click to collapse
yeah 2.1 update1 and again no luck. this is really irritating. i dont understand why this isnt connecting to the network. if i could get my hands on a stock rom that is exactly for this phone and carrier it should work but all the links are dead for the files i want
itstheburns said:
yeah 2.1 update1 and again no luck. this is really irritating. i dont understand why this isnt connecting to the network. if i could get my hands on a stock rom that is exactly for this phone and carrier it should work but all the links are dead for the files i want
Click to expand...
Click to collapse
the problem isnt the stock firmware.
I the problem is you tried to unlock bootloader for a sim locked phone and because of that it has messed up.
AS you have got NOT RECOGNIZED SIMLOCK CERTIFICATE in s1tool you shouldnt have tried to unlock bootloader,
I am sorry I have no other ideas for it.
I advise to contact in this thread.
http://forum.xda-developers.com/showthread.php?t=1322827&page=2
THeLogiC said:
the problem isnt the stock firmware.
I the problem is you tried to unlock bootloader for a sim locked phone and because of that it has messed up.
AS you have got NOT RECOGNIZED SIMLOCK CERTIFICATE in s1tool you shouldnt have tried to unlock bootloader,
I am sorry I have no other ideas for it.
I advise to contact in this thread.
http://forum.xda-developers.com/showthread.php?t=1322827&page=2
Click to expand...
Click to collapse
Thanks. I will try that. I was not aware of the sim certificate issue. when i got the phone, it didnt get service so i flashed it back to stock thinking it was an issue with the rom or radio. thanks for all of ur time and help!
itstheburns said:
Thanks. I will try that. I was not aware of the sim certificate issue. when i got the phone, it didnt get service so i flashed it back to stock thinking it was an issue with the rom or radio. thanks for all of ur time and help!
Click to expand...
Click to collapse
No problem.
If you have NOT RECOGNIZED SIMLOCK CERTIFICATE in s1tool then you shouldnt unlock bootloader. If u do so you lose your signal which cannot be recovered by usual flashing methods like going to stock.
Related
Hi all.
I need/want to bootloader unlock my friends X10 that is (currently) running the latest stock firmware. It is currently running 3.0.1.G.0.75 Orange UK branded firmware, but by the time Im done with ready for flashing kernels and ROMs, it will be running 3.0.1.G.0.75 generic UK (either by editing the build.prop or flashing it with flashtool should multiupload.com suddenly become online again - but thats minor details as far as I can tell)
Unfortunately when my friend brought the phone, it was SIM locked (to orange as far as Im aware (its a white one and "supposed" to be "orange exclusive")) so I have unlocked it using Omnius as my friend uses O2.
After discovering how much nicer my X10 Mini Pro is with a custom ROM on it, he too has decided to take to the custom ROM route.
However, most of the ROMs now appear to rely on a custom kernel or an unlocked bootloader for obvious reasons.
I have installed the latest flashtool (Flashtool version 0.6.7.0), and noticed about the "plugins>unlock bootloader" . Even more curious, I decided to open the folder where it is installed, and noticed in the custom\features\UnlockBL\files\qsd8250 directory, there is a file called qsd8250bootwrite_omniusSL (along with setool's and SEMC's ones obviously) and what appears to be various scripts, which I assume checks for the type of certificate, then flashes what it needs to the phone.
My main questions are:
1 If I unlock using flashtool, would the radio signals stop working?
2 Will this affect the unlock status of the phone? Example: http://forum.xda-developers.com/showpost.php?p=19322815&postcount=224
I have tried searching for just about anything to do with omnius and bootloader unlocking, but only to find that Ive gotten lost in so many threads saying different things, Im not sure what to believe any more
I know this is for a different chipset (well, its a different phone) but just a taste of what I have found out:
http://www.gsmcure.com/forum/showthread.php?t=2505
http://forum.xda-developers.com/showthread.php?t=1254225
http://forum.xda-developers.com/showthread.php?t=1401010
http://forum.xda-developers.com/showthread.php?p=19685019
http://forum.xda-developers.com/showthread.php?t=1254087
hey i have the same problem..unlocked using omnius but when i do run the unlockBL it just says the warn: something something unidentified aborting process. and aborts
I also have this question
SilverMindPL said:
I also have this question
Click to expand...
Click to collapse
http://forum.xda-developers.com/showpost.php?p=19685019&postcount=7
check this post
download s1tool and check whether you can unlock your bootloader or not
cchaos said:
I need/want to bootloader unlock my friends X10 that is (currently) running the latest stock firmware.
Click to expand...
Click to collapse
Almost a year later, and the phone now being mine (and Ive got plenty of spare phones), I decided to take a "risk" on the above phone using Flashtool version 0.9.10.1:
cchaos said:
1 If I unlock using flashtool, would the radio signals stop working?
2 Will this affect the unlock status of the phone? Example: http://forum.xda-developers.com/showpost.php?p=19322815&postcount=224
I have tried searching for just about anything to do with omnius and bootloader unlocking, but only to find that Ive gotten lost in so many threads saying different things, Im not sure what to believe any more
Click to expand...
Click to collapse
1 Its unlocked the bootloader fine as far as I can tell; I havent actually installed a custom kernel (or a custom ROM for that matter) yet as I have yet to choose one - and yes I know theres a custom kernel already in flashtool. I dont seem to have any problems with signal on the phone using the stock firmware.
2 Phone seems to have kept unlocked. However at the moment I dont have another SIM to test it with, but the service menu certainly suggests that it hasnt lost its unlock.
Hope this helps someone else!
I'd like to confirm that if you SIM unlock with Omnius, you should definitely BLU with the latest Flashtool since it is compatible with Omnius. If you try any other BLU method (SEMC, Setool2), you WILL lose radio and the only way to get radio back is to SIM unlock with Omnius again.
Since then, I have been able to flash stock and custom ROMs/kernels successfully, while maintaining a working radio.
HI guys, i need some helps here,
After i unlocked x10mini, cant connect to sim card, showing "No service"
What i should to do, Need to relock and update via PC Companion?
Speederoff said:
HI guys, i need some helps here,
After i unlocked x10mini, cant connect to sim card, showing "No service"
What i should to do, Need to relock and update via PC Companion?
Click to expand...
Click to collapse
Do it the ohter way round please if you've already flashed a custom kernel, go back to stock first through PC Companion and then relock the bootloader.
SmG67 said:
Do it the ohter way round please if you've already flashed a custom kernel, go back to stock first through PC Companion and then relock the bootloader.
Click to expand...
Click to collapse
Thanks for replying, safely back to Original firmware, Now i need to Unlock and able to flash Custom ROM? It will disable my connection again ? just wondering =.=".
Thx for helping me.
Speederoff said:
Thanks for replying, safely back to Original firmware, Now i need to Unlock and able to flash Custom ROM? It will disable my connection again ? just wondering =.=".
Thx for helping me.
Click to expand...
Click to collapse
I'm guessing relocking the bootloader helped then?
Do you have S1Tool? I'm curious about the output of the identify-button
Chances are unlocking your bootloader will disable your network again.
SmG67 said:
I'm guessing relocking the bootloader helped then?
Do you have S1Tool? I'm curious about the output of the identify-button
Chances are unlocking your bootloader will disable your network again.
Click to expand...
Click to collapse
Grrrrrrrrrr, so hate
How do you did Unlocking bootloader ? .. Using S1tool or some other stuff?
Speederoff said:
Grrrrrrrrrr, so hate
How do you did Unlocking bootloader ? .. Using S1tool or some other stuff?
Click to expand...
Click to collapse
There are three safe circumstances in which you can unlock your bootloader:
1: You bought your phone sim-unlocked, in which case it's got a simlock-certificate by sony-ericsson
2: You sim-unlock your phone using an unlock code from your carrier (emma/imei-code), usually free after your initial contract-period
3: You sim-unlocked your phone using Omnius (or something similar)
I just bought mine without a contract, it wasn't that expensive, about a year after they came out, so i've got no carrier lock-in, which is a bonus. Apart from that, sim-unlocking your phone using a code from your provider is the safest way to do things.
Flashtool will unlock your bootloader, but s1tool will give you the information you need to know if it's safe.
Speederoff said:
HI guys, i need some helps here,
After i unlocked x10mini, cant connect to sim card, showing "No service"
What i should to do, Need to relock and update via PC Companion?
Click to expand...
Click to collapse
Same with me. After i unlocked x10 mini pro, and then upgraded to ARCMINI ICS 4 (for mini pro),
It's showing no network. What should I do now? I want android 4.0.4 for my x10 mini pro. lol
SmG67 said:
There are three safe circumstances in which you can unlock your bootloader:
1: You bought your phone sim-unlocked, in which case it's got a simlock-certificate by sony-ericsson
2: You sim-unlock your phone using an unlock code from your carrier (emma/imei-code), usually free after your initial contract-period
3: You sim-unlocked your phone using Omnius (or something similar)
I just bought mine without a contract, it wasn't that expensive, about a year after they came out, so i've got no carrier lock-in, which is a bonus. Apart from that, sim-unlocking your phone using a code from your provider is the safest way to do things.
Flashtool will unlock your bootloader, but s1tool will give you the information you need to know if it's safe.
Click to expand...
Click to collapse
Omnius doesn't allow bootloader unlock after using it to SIM unlock. My phone is factory locked to T-Mobile UK and I've never unlocked it and my bootloader unlock was fine
X10man
Sent from my Fender Stratocaster to your face via XDA Premium
Hi all,
I have followed this guide: http://forum.xda-developers.com/showthread.php?t=1837273
everything went good, I have successfully install kernel and CM10. I started phone without sim, wifi is okey and everything is perfect. But when I start phone with SIM card, enter pin, than nothing happens. I have tryed to manualy select carier, but phone just gave me pop up, that is unable to register within my carrier. Does anyone has same error? Could someone help me?
Best Regards,
skodik
skodiko said:
Hi all,
I have followed this guide: http://forum.xda-developers.com/showthread.php?t=1837273
everything went good, I have successfully install kernel and CM10. I started phone without sim, wifi is okey and everything is perfect. But when I start phone with SIM card, enter pin, than nothing happens. I have tryed to manualy select carier, but phone just gave me pop up, that is unable to register within my carrier. Does anyone has same error? Could someone help me?
Best Regards,
skodik
Click to expand...
Click to collapse
Did you unlock your bootloader in order to flash this, or did you already have that unlocked before?
SmG67 said:
Did you unlock your bootloader in order to flash this, or did you already have that unlocked before?
Click to expand...
Click to collapse
Yes, I have unlocked bootloader, according to guide which is in kernel thread...
I think I will try to lock bootloader, load stock kerner and stock rom and try it again ...
skodiko said:
Yes, I have unlocked bootloader, according to guide which is in kernel thread...
I think I will try to lock bootloader, load stock kerner and stock rom and try it again ...
Click to expand...
Click to collapse
first go back to stock kernel and rom and then relock the bootloader.. not the other way around. You'll run into all sorts of trouble if you lock the bootloader while on a custom kernel.
SmG67 said:
first go back to stock kernel and rom and then relock the bootloader.. not the other way around. You'll run into all sorts of trouble if you lock the bootloader while on a custom kernel.
Click to expand...
Click to collapse
Oukej, thanks for advice
Dont you know, if there is any guide where to find stock kernel and rom and how to do this rollback
thx
skodiko said:
Oukej, thanks for advice
Dont you know, if there is any guide where to find stock kernel and rom and how to do this rollback
thx
Click to expand...
Click to collapse
Do a repair with SEUS ( or SUS, since Ericsson no longer takes part ) or PC Companion, and then relock the bootloader using the Repair-button in S1Tool.
SmG67 said:
Do a repair with SEUS ( or SUS, since Ericsson no longer takes part ) or PC Companion, and then relock the bootloader using the Repair-button in S1Tool.
Click to expand...
Click to collapse
Thank you, successfully restored, lets try it again.
Hi guys !
I think i have a problem with my xperia ray I`ve tried to flash a custom rom, but during that process there was an error and bricked my phone. I managed to bring it back to life, flashed stock 4.0.4 rom, but now i get "please insert SIM card and restart your phone"
The funny thing is that before i bricked it the bootloader unlock allowed was YES, and now it switched to NO.
Can someone help me ? Is there anything i can do ?
s0higher said:
Hi guys !
I think i have a problem with my xperia ray I`ve tried to flash a custom rom, but during that process there was an error and bricked my phone. I managed to bring it back to life, flashed stock 4.0.4 rom, but now i get "please insert SIM card and restart your phone"
The funny thing is that before i bricked it the bootloader unlock allowed was YES, and now it switched to NO.
Can someone help me ? Is there anything i can do ?
Click to expand...
Click to collapse
You must have flashed a carriers specific firmware for ray. Get this generic one and try - http://www.mediafire.com/?pp48w8v9z1adg59
And could you please tell us what the error was and how exactly you "bricked" it? Also, try going into fastboot mode and see if you can still flash a custom kernel.
Thank you for your answer ! bricking it was very easy ... I tried to flash CM 10, wipe - factory reset / cache, and during the new rom install it was an “Status 7″ Error in ClockworkMod Recovery. After this I used s1tool to bring it back to life and flashed a new rom, which I though was the right one (ST18i_4.1.B.0.587_CE_1252-3693). I`ll try to flash the rom you pointed and see what happens.
Nope, that rom didn`t helped, still the same problem.
The phone was bough form vodafone spain, had a vodafone custom rom, no SIM LOCK and bootloader unlock allowed : YES, but after i did that mess, and install a new rom i get bootloader unlock allowed: NO and "please insert SIM card and restart your phone", no mater if there is a SIM CARD inserted or not ...
s0higher said:
Thank you for your answer ! bricking it was very easy ... I tried to flash CM 10, wipe - factory reset / cache, and during the new rom install it was an “Status 7″ Error in ClockworkMod Recovery. After this I used s1tool to bring it back to life and flashed a new rom, which I though was the right one (ST18i_4.1.B.0.587_CE_1252-3693). I`ll try to flash the rom you pointed and see what happens.
Click to expand...
Click to collapse
s0higher said:
Nope, that rom didn`t helped, still the same problem.
The phone was bough form vodafone spain, had a vodafone custom rom, no SIM LOCK and bootloader unlock allowed : YES, but after i did that mess, and install a new rom i get bootloader unlock allowed: NO and "please insert SIM card and restart your phone", no mater if there is a SIM CARD inserted or not ...
Click to expand...
Click to collapse
Why did you use s1tool to "bring back to life"? Maybe you (re)locked your bootloader? What exactly did you with s1tool to bring your phone back to life?
Btw: The status7 error caused by updater-sricpt in cm10 rom zip.
If you searched this Q thread (or cm10 thread) there is a solution for that. (copy the updater-script from CM rom zip edit with notepat++ and delete first lines till mount. Copy back, overwrite old updater-script and the cm10 flash don't shows "status7 error")
Wechy77 said:
Why did you use s1tool to "bring back to life"? Maybe you (re)locked your bootloader? What exactly did you with s1tool to bring your phone back to life?
Click to expand...
Click to collapse
I used RESTORE in s1tool, obviously that was a bad call and relocked my bootloader... because i`m a noob, no question there. So is there anything i can do about it so i can have my phone back ? or what do you think i should do ?
s0higher said:
I used RESTORE in s1tool, obviously that was a bad call and relocked my bootloader... because i`m a noob, no question there. So is there anything i can do about it so i can have my phone back ? or what do you think i should do ?
Click to expand...
Click to collapse
I never used s1tool so I can't help you. Maybe other smarter xda user can help you, or search xda
Sent from my Xperia Ray using xda premium
no "other smarter xda user can help" ? :crying:
s0higher said:
no "other smarter xda user can help" ? :crying:
Click to expand...
Click to collapse
now your phone is on locked bootloader and sim locked too?
It says: bootloader unlock allowed: no?
Before you unlocked it was simfree? You wrote, that the phone is voda/Spain you have voda simcard?
Have you tried other ftf? (not for Centar Europe - CE)
Edit:
- Have you cheched your baseband? see post
Yes the phone was both locked on bootloader (bootloader unlocked alowed: NO ) and SIM LOCK ( not sure about this, since i don`t have the Voda/Spain sim anymore, but all the other ones where useless)
Anyway, i took the easy way and used WotanServer to solve my problem. Now the bootloared changed back to "bootloader unlocked alowed: YES" and i can use any SIM card.
I think my mistake was using s1tool after the Status 7 Error in ClockworkMod Recovery. I guess s1tool changed my bootloader status... if i had used just flashtool and do just a stock rom flash... But we learn as long as we live :silly:
Thank you all for you`re answers !
s0higher said:
Yes the phone was both locked on bootloader (bootloader unlocked alowed: NO ) and SIM LOCK ( not sure about this, since i don`t have the Voda/Spain sim anymore, but all the other ones where useless)
Anyway, i took the easy way and used WotanServer to solve my problem. Now the bootloared changed back to "bootloader unlocked alowed: YES" and i can use any SIM card.
I think my mistake was using s1tool after the Status 7 Error in ClockworkMod Recovery. I guess s1tool changed my bootloader status... if i had used just flashtool and do just a stock rom flash... But we learn as long as we live :silly:
Thank you all for you`re answers !
Click to expand...
Click to collapse
I'm happy you solved it. My last idea was to unlock it again but you was faster...
Sent from my Xperia Ray using xda premium
Just got an E10a off eBay and PC Companion would only update it to 2.0.1.A.0.47. I think I need 2.1.1 and a specific baseband to flash CM, but I can't use a E10i 2.1.1 FTF or I will lose the 3G connection.
I just wanted to verify, from my reading here, that if I wanted to flash miniCM10 I should flash chavito's E10a rom with the appropriate baseband (http://forum.xda-developers.com/showthread.php?t=1294579) then unlock the bootloader and flash after that?
trowakage said:
Just got an E10a off eBay and PC Companion would only update it to 2.0.1.A.0.47. I think I need 2.1.1 and a specific baseband to flash CM, but I can't use a E10i 2.1.1 FTF or I will lose the 3G connection.
I just wanted to verify, from my reading here, that if I wanted to flash miniCM10 I should flash chavito's E10a rom with the appropriate baseband (http://forum.xda-developers.com/showthread.php?t=1294579) then unlock the bootloader and flash after that?
Click to expand...
Click to collapse
Yes, and make sure your phone isn't locked to a provider, the bootloader unlock may disable the entire radiochip (2G/3G). You can unlock the bootloader, boot into the ROM and see if you get signal, if you don't you have to lock the bootloader again.
(If you play with flashtool, DELETE the10blrelock.ftf from the flashtool/firmware folder, it will hardbrick your phone if flashed accidentally)
Thanks for the quick reply! Carrier unlocking is the other question I have. I've tried a couple of places to get the IMEI-based unlock code, but none of them can find it. So I'm thinking of getting a USB unlock from this place:
https://www.fastgsm.com/en/sonyericsson/xperia-x10-mini-e10i/unlock-network/flashing-debrand
It says that it will carrier unlock AND unlock the bootloader as well. So I should use that unlock service after I flash chavito's ROM but before I flash miniCM10?
trowakage said:
Thanks for the quick reply! Carrier unlocking is the other question I have. I've tried a couple of places to get the IMEI-based unlock code, but none of them can find it. So I'm thinking of getting a USB unlock from this place:
https://www.fastgsm.com/en/sonyericsson/xperia-x10-mini-e10i/unlock-network/flashing-debrand
It says that it will carrier unlock AND unlock the bootloader as well. So I should use that unlock service after I flash chavito's ROM but before I flash miniCM10?
Click to expand...
Click to collapse
I don't know if your phone is locked to a provider, or which one if it is. The site you refer to says it can only do it for a limited number of countries and providers, but it don't list which ones up front, so be careful with that. If sim-cards from different providers work on your phone, just skip that and unlock the bootloader using flashtool. But yes, you should first flash that latest firmware before you unlock the bootloader.