My friend has a Xperia Z1 C6903, his phone is locked to "Three" in UK. I read that flashing a custom rom will not unlock his phone, only flashing a unlocked modem will. I haven't find a way to download and flash modem. I found this thread. Should I try all these steps or is there any way to flash an unlock modem like ftf files?
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Just a quick question, I am using the leaked 4.3 firmware with unlocked bootloader.
Will I be able to flash the upcoming official 4.3 firmware via flashtool? will the bootloader become locked again?
Sorry for the noob question.
Yes you can flash the ftf with no problems - bootloader will not be re-locked. I excluded flashing of the kernel and unticked wipe data in flashtool so that I retained the leaked kernel (with Cwm) and all of my user data. Have had no issues so far.
so after flashing the stock rom, I will still have my bootloader unlocked.
thanks for your answer. :good:
Hello.
I searched some but i could not find the answers so hopefully i can get them in this post.
Well what i was wondering about is: I have unlocked my bootloader the official way. Let´s say i wanna relock it again, flashing a stock kernel.sin and using flashtool to relock it.
What method is then used to Unlock it again if you would wanna do that ? And i dont want guesses here i want solid facts of what works and not.
/Jonas740
I just use FlashTool to unlock and relock after officially unlocking it the Sony way. I haven't experienced anything odd or harmful doing it this way. Seems to be nice and safe. Currently my Z1 is rooted, stock kernel, dual recovery installed and bootloader locked and it's working great!
dual `?
GR00VY GH0ULIE said:
I just use FlashTool to unlock and relock after officially unlocking it the Sony way. I haven't experienced anything odd or harmful doing it this way. Seems to be nice and safe. Currently my Z1 is rooted, stock kernel, dual recovery installed and bootloader locked and it's working great!
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Dual installer recovery ?
Im kinda newb but wont root go away if you apply stock kernel ? what kernel are you using. had a hard time finding stock ones. Unless you mean to just extract from a ftf file.
Jonas740 said:
Dual installer recovery ?
Im kinda newb but wont root go away if you apply stock kernel ? what kernel are you using. had a hard time finding stock ones. Unless you mean to just extract from a ftf file.
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On Locked Bootloader you can use Custom Roms with Stock Kernels as it is the only one kernel what you can use on Locked Bootlader.
Ye
eclyptos said:
On Locked Bootloader you can use Custom Roms with Stock Kernels as it is the only one kernel what you can use on Locked Bootlader.
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Ye but do you extract stock kernels from the ftf´s available or will it just wipe the kernel if you flash a ftf from the big ftf list ?
Before flashing JUST the kernel from the Global Generic FTF posted here I flashed (in recovery from ADV Stock Kernel) NUT's dual recovery for Z1 from here: http://nut.xperia-files.com/
Then after stock kernel flashed I relocked bootloader in FlashTool and still have access to recovery if I need it (say I lose root) and can always reflash Update SuperSU from recovery and booyah!! Root restored though I never lost root but if I do I can get it back super easy!!
Jonas740 said:
Ye but do you extract stock kernels from the ftf´s available or will it just wipe the kernel if you flash a ftf from the big ftf list ?
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I don't know what exactly you mean. If you want to keep your kernel you can flash any Stock FTF and exclude Kernel in Flashtool, that will wipe the system but the kernel will remain the one you have, it's called Dirty Installation.
If you have Custom Rom with Custom Kernel and you want, for example, relock your bootloader then with Flashtool flash the Stock Kernel only, how? Just use any Stock FTF, put it in Flashtool folder, select the FTF and exclude everything and leave just kernel clicked, it will flash just the Stock Kernel from the whole Stock FTF.
Done.
I want to return to stock 12.0.A.2.254 firmware from an unlock XSP with cm10.1 and i have an ftf file (I downloaded from the inernet) as well as the flashtool to do so but I heard that flashing a stock ftf will relock the bootloader.Therefore I have three questions:
1) Will any ftf file work? Do I need a specific one for my phone? Will a Generic ftf from any country work?
2) If the bootloader is relocked,Will it be unlocked the same way as it was before? will the same codes (unlock key/IMEI) be used as when I unlocked the phone for the first time?
3) Is there a way to flash stock ftf without the bootloader getting relocked? If so then can someone give me detailed instructions?
I don't mind losing root access as long as the booloader is unlocked therefore I personally wanna go with the third method but I have got no Idea on how to go about it.Some help would be EXTREMELY appreciated.
Also I want to apologize if something like this has been asked before but I was not able to find a similar topic or a topic that could answer my questions.
Thanks.
P.S
I just found a "loader.sin" file in the ftf that I have.I don't know if it has anything to ddo with the bootloader or not.So will including that in the flashing sequence relock the bootloader? Does "loader.sin" have anything to do with the booatloader? Should I exclude it while flashing the ftf and will that result in a faulty flash?
Help would be appreciated.
It won't re-lock your phone's bootloader.
Any ftf will do but advisable to use back the one with same customization version that your phone came with originally.
Tapatalked from my Xperia
Rycon33 said:
It won't re-lock your phone's bootloader.
Any ftf will do but advisable to use back the one with same customization version that your phone came with originally.
Tapatalked from my Xperia
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I dont know my customization number.I mever checked for it neither did i back it up.Is there anyway to find it in cm or is it lost forever?
Then just flash any generic ftf for your phone model C5303 and it will also be fine. It will also be fine.
Tapatalked from my Xperia
delete please
Please delete this thread
I flashed the wrong firmware on my xperia c6606 and now it is softbricked. I was looking the official firmware for the c6606. The firmware I had was the 10.4.C.0.814, and I cant find it in any of the forums on xda unless its in a zip format.
Use my guide to download it yourself using Flashtool - How to package and flash stock roms in FTF format
Sent from my C6603
Ive read alot through all the forums(mostlyclooking for locked boots ader Roms) and I have the flash tool. I didn't know you could directly download ftf's from here. When I get back to my PC I'll let you know about my results. Also I have another question can I only flash c6606 ftfs or can I flashan ftf for a c6602/03 as well??
Ive read alot through all the forums(mostlyclooking for locked boots ader Roms) and I have the flash tool. I didn't know you could directly download ftf's from here. When I get back to my PC I'll let you know about my results. Also I have another question can I only flash c6606 ftfs or can I flashan ftf for a c6602/03 as well??
Update: saw a video on youtube. Forgot that I could download the official firmware from the flashtool directly. Everything is back in working order no problems whatsoever.
Got my Z1 the other day and flashed some firmware on it(cant remember which one) then rooted it, unlocked bootloader and flashed dual recovery to it and then flashed my rom. Rom worked fine etc but sim card was not detected because IMEI is 0.
I read up about this and followed a guide which involved flashing .290, then .257 and then after that to root the z1 and then flash .534 and then install recovery and then install my rom. This was supposed to 'fix' the imei problem but i've just finished flashing DU 5.1.1 and my IMEI is STILL missing and now I have no idea what to do next.
I want to run a custom rom but still be able to have simcard etc.
Any help would be greatly appreciated.
Thanks
hippopig said:
Got my Z1 the other day and flashed some firmware on it(cant remember which one) then rooted it, unlocked bootloader and flashed dual recovery to it and then flashed my rom. Rom worked fine etc but sim card was not detected because IMEI is 0.
I read up about this and followed a guide which involved flashing .290, then .257 and then after that to root the z1 and then flash .534 and then install recovery and then install my rom. This was supposed to 'fix' the imei problem but i've just finished flashing DU 5.1.1 and my IMEI is STILL missing and now I have no idea what to do next.
I want to run a custom rom but still be able to have simcard etc.
Any help would be greatly appreciated.
Thanks
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If you have C6902, then you have to flash the corresponding fix, which is in Z1 threads. Search for it. If you have C6903, then either reflash your original ftf firmware with flashtool or flash C6903 baseband only from the same ftf (also with flashtool). If you can't find original firmware, just flash baseband for your type (C69XX). And next time, read about the firmware/rom you are flashing (and write it down) or you may brick your phone...