[SOLVED] Help to unlock Z5 Premium ?! - Xperia Z5 Premium Q&A, Help & Troubleshooting

Hi there guys! I've got Xperia Z5 Premium (as far as my PC recognize it as such).
It is probbably with locked bootloader, cuz in fastboot it gives me error : <remote:failed command not allowed>
BUT i do not have access to the menu. I found the phone in one mountain near a hut, so far i decidet to try flashing it, but it seems bootloader is locked. Phone is locked also with pin code.
The usual methods i found need IMEI, which i do not have. If i open it, is tehre IMEI number ?
Is there any way to flash it or get the IMEI?
PLS guys, don't bother ****talking about stolen device or such... If anyone recognize it, come and get it.
SOLUTION that worked for me : https://forum.xda-developers.com/z5-premium/general/how-to-tottaly-unlock-xperia-z5-premium-t3585640

if you have find that device in a hut. its probably better to return to authorities! the owner might have valuable data in it! atleast try tracking down the owner!
however you can still flash the device via FLASHTOOL using flashmode / original STOCKROM only and you can keep the data also alive by just excluding wipes in the flash firmware area.
once booted try to find the owner info and return the device!
i

Hi. I work in that hut, it is in ski resort, so you can imagine how many people are going thru there. 2 months, phone was ON and connected to WiFi. No sign that someone is looking for it.
There is no owner info on the lock screen, so.... And where i live, authorities are worst than thiefs, so, that is not an option. As there is no IMEI or other info on the phone itself, i think it is unable to find the owner! Also it is foreign sim card in it, but noone calls or text.
EDIT: I've used both flashtool and fastboot, but no success. In flashtool it says "Your phone bootloader cannot be officially unlocked" , in fastboot > Failed(remote:command not allowed)
So, is this a one nice BRICK with clock on it ?!
Isn't there any way to force flash or unlock screen or bootloader ?!

grosseader said:
Hi. I work in that hut, it is in ski resort, so you can imagine how many people are going thru there. 2 months, phone was ON and connected to WiFi. No sign that someone is looking for it.
There is no owner info on the lock screen, so.... And where i live, authorities are worst than thiefs, so, that is not an option. As there is no IMEI or other info on the phone itself, i think it is unable to find the owner! Also it is foreign sim card in it, but noone calls or text.
EDIT: I've used both flashtool and fastboot, but no success. In flashtool it says "Your phone bootloader cannot be officially unlocked" , in fastboot > Failed(remote:command not allowed)
So, is this a one nice BRICK with clock on it ?!
Isn't there any way to force flash or unlock screen or bootloader ?!
Click to expand...
Click to collapse
you cannot just simply unlock the bootloader like that. you have to request SONY to send you unique keys and these used as password in order to unlock you bootloader! ( i.e. if the device is NOT SIMLOCKED from the origin country)
-- unlocking bootloader means LOOSING your DRMKEY/TA BACKUPS ,
please make your self aware of all the circumstances!

I have key to unlock bootloader from SONY. May be option in phone menu is restricted so this stop apps from flashing :/
I know about all circumstances.
So far i've flashed OEM rom, but now it ask for google account that was previously used on that phone, which is annoyng. Sony is copying apple or what ? Wtf happen with our android devices

grosseader said:
I have key to unlock bootloader from SONY. May be option in phone menu is restricted so this stop apps from flashing :/
I know about all circumstances.
So far i've flashed OEM rom, but now it ask for google account that was previously used on that phone, which is annoyng. Sony is copying apple or what ? Wtf happen with our android devices
Click to expand...
Click to collapse
it will remain mystery to me that how did you manage to have imei number of the device while phone was locked---- anyways
while device is open , goto dialer and dial *#*#7378423#*# then goto service info >>> Configuration and check "BOOTLOADER UNLOCK ALLOWED:" if it says NO then sorry, this device cannot be BOOT UNLOCKED. better to return it!
the previous google account prompt is because the old user data is intact. perform CLEAN FLASH , wipe EVERYTHING. (just tick the boxes as shown in the image (FLASHTOOL FLASHMODE , FIRMWARE SELECTED)
and a Big NO to sony copying Apple. and nothing happend to android devices! you can have easy go devices like huawei/lenovo/alcatel/(even samsung) etc. their stockrom can easily be xploited and kingroot supports various of devices under those brands. however Kingroot removed SONY from their website after Android 5.1 since they could not bypass SonyRIC from Android 6

I've got imei thru Flashtool, Emma, there it showed me Imei number.
This option with the code in dialer may be usefull with older android version, now it is unable to use it thru emergency call, since i do not have access to dialer itself.
I performed clean OEM flash thru Flashtool, wipe everything, but account lock is still there.
I do not know where to return it! It is foreign phone. I wait 2 months for someone to call or look for it. I work in ski resort and almost every day someone found lost phone. If i return it to police, they ouldn' do anything about it. Will sell it for 20euro probbably. I have friend in police department so i know what is going in there.
Sent from my GT-I9505 using Tapatalk

grosseader said:
I've got imei thru Flashtool, Emma, there it showed me Imei number.
This option with the code in dialer may be usefull with older android version, now it is unable to use it thru emergency call, since i do not have access to dialer itself.
I performed clean OEM flash thru Flashtool, wipe everything, but account lock is still there.
I do not know where to return it! It is foreign phone. I wait 2 months for someone to call or look for it. I work in ski resort and almost every day someone found lost phone. If i return it to police, they ouldn' do anything about it. Will sell it for 20euro probbably. I have friend in police department so i know what is going in there.
Sent from my GT-I9505 using Tapatalk
Click to expand...
Click to collapse
Please flash Again WIPING EVERYTHING. it is not possible that you still get old data back! since it wipes all the SIN and MISC TA

YasuHamed said:
Please flash Again WIPING EVERYTHING. it is not possible that you still get old data back! since it wipes all the SIN and MISC TA
Click to expand...
Click to collapse
I've flashed absolutely everything, wiped whole data, but Account lock is still there. I tried with older android, and the BUG that allows me to download app from internet is working , but i can't find way to install bypass app. As soon as i click on APK it send me to chrome screen. Any other ideas ?
Just finished with the bypass of FRP.
SOLUTION here: https://forum.xda-developers.com/z5-premium/general/how-to-tottaly-unlock-xperia-z5-premium-t3585640
Thanks to everyone!

grosseader said:
I've flashed absolutely everything, wiped whole data, but Account lock is still there. I tried with older android, and the BUG that allows me to download app from internet is working , but i can't find way to install bypass app. As soon as i click on APK it send me to chrome screen. Any other ideas ?
Just finished with the bypass of FRP.
SOLUTION here: https://forum.xda-developers.com/z5-premium/general/how-to-tottaly-unlock-xperia-z5-premium-t3585640
Thanks to everyone!
Click to expand...
Click to collapse
the startup screen first time always ask many questions about you in order to personalize your device. you can skip many of them including google account
but i am talking about fresh start. any other old user data will always ask you credentials

Related

I forgot the my nokia 5200 security code

Hey I forgot my nokia 5200 security code although my phone is not locked but I still need the code to reset my phone.Do anybody have a solutoin for my problem it would be helpful. Thankyou.
I know it's been a long time, but i was researching some info to unlock this old phone.
I thought that flashing stock firmware would unlock it, just like some "now a days" devices.
But it didn't unfortunately.
However, flashing it worked to restore lock code, so if you still want to revive it just flash it using "phoenix 2012", you can get the firm using "navifirm" indeed.
You could also try before flashing, read the phone code using "infinity box BEST", but you should manage to establish USB connection first, normal mode or flash mode, i don't know if this second method would work though.
Try and see what happens.

[Q] Issues unlocking bootloader Sony Xperia Arc S LT18i

Hello all,
I've got an Arc S that I've been trying to unlock the bootloader on using Sony's method, without success.
1. I have fastboot and adb installed on my machine (Linux Mint 14 32bit)
2. I've pulled the unlock code from Sony's website
3. I set my udev rules as laid out in this tutorial.
4. I have checked my bootloader to confirm that it can be unlocked (and currently is locked)
5. Fastboot is working (When I type in sudo fastboot devices, I get a hexadecimal string in response)
6. However, when I try to unlock, it always fails.
Initially, it gave me a "oem unlock failure code". After I rebooted thought, the code changed. Instead of something like this
Code:
oem unlock failed!
it gave me this
Code:
...
and did nothing. I let it sit for a few minutes and then forcibly shut down terminal, no damage done to the phone.
I'm quite confused at this point. From all my google searching I can't figure out why the booloader won't unlock. I'm pretty sure that I have the right unlock code.
A second and curious thing that may or may not be related is that the phone is rooted, but when I tried to transfer CWM via fastboot it threw an error, saying that the phone needed to be rooted first. However, it is rooted and apps such as Titanium Backup work just fine, verifying the root. Can anyone give me some direction on this?
I know there is a video on the how to unlock lt18i bootloader. It also has step by step process on fixing issues for unlocking bootloader. Lemme get.it for ya.
Sent from my LT18i using xda premium
May be a relatively simple thing. Is your phone simlocked? This may have some bearing on it.
sinkster said:
May be a relatively simple thing. Is your phone simlocked? This may have some bearing on it.
Click to expand...
Click to collapse
I don't believe that it is simlocked. I don't believe the phone was purchased through a carrier. For clarification, this is a friend's phone so I would need to ask them as to where they purchased it.
sinkster said:
May be a relatively simple thing. Is your phone simlocked? This may have some bearing on it.
Click to expand...
Click to collapse
No, it is not simlocked, else it would not show Bootloader Unlock Allowed: Yes
To OP: Write out the command you used to unlock the bootloader.
Someguyfromhell said:
No, it is not simlocked, else it would not show Bootloader Unlock Allowed: Yes
To OP: Write out the command you used to unlock the bootloader.
Click to expand...
Click to collapse
As taken from the Cyanogenmod Wiki page for Anzu devices:
Code:
fastboot -i 0x0fce oem unlock 0xKEY
where KEY was the bootloader unlock I received from Sony.
The dots indicate the software's not detecting your device. I had the same problem. Try reinstalling the drivers. If it still fails, maybe you can give the method outlined in the link below a go. It's for the relatively newer Sony devices, but maybe it'd work with the Arc. I haven't personally tried unlocking via Flashtool, but for me, the Fastboot command-based experience hasn't been all too good. I now use the Fastboot option in Flashtool, as opposed to standalone Fastboot, to flash every kernel that I use. Works like a charm each time, and what's more, it does away with the need to key in commands in the exact syntax.
http://forum.xda-developers.com/showthread.php?t=1971363
MarcSinger said:
The dots indicate the software's not detecting your device. I had the same problem. Try reinstalling the drivers. If it still fails, maybe you can give the method outlined in the link below a go. It's for the relatively newer Sony devices, but maybe it'd work with the Arc. I haven't personally tried unlocking via Flashtool, but for me, the Fastboot command-based experience hasn't been all too good. I now use the Fastboot option in Flashtool, as opposed to standalone Fastboot, to flash every kernel that I use. Works like a charm each time, and what's more, it does away with the need to key in commands in the exact syntax.
http://forum.xda-developers.com/showthread.php?t=1971363
Click to expand...
Click to collapse
I tried unlocking the bootloader via Flashtool and I got the same result of
Code:
oem unlock failed!
. So that means that something is wrong with my fastboot installation (not likely)my udev rules(possible) or for some crazy reason the phone is not reporting back correctly. A curious thing I noted is that when the phone is detected via adb it doesn't return the phone's IMEI. It does return a number, but it does not match the IMEI. Has anyone ever heard of that situation?
Guanfy said:
I tried unlocking the bootloader via Flashtool and I got the same result of
Code:
oem unlock failed!
. So that means that something is wrong with my fastboot installation (not likely)my udev rules(possible) or for some crazy reason the phone is not reporting back correctly. A curious thing I noted is that when the phone is detected via adb it doesn't return the phone's IMEI. It does return a number, but it does not match the IMEI. Has anyone ever heard of that situation?
Click to expand...
Click to collapse
I don't believe Fastboot returns the phone's IMEI. It's always looked to me like a random number that's generated to show successful connectivity between the device and the Fastboot program. But then again, I could be wrong.
Anways, despite the message you got, it's looking increasingly likely that your bootloader cannot be unlocked.
PS: You retired your SGS III, but kept your Arc? The decision really befuddles me.
MarcSinger said:
I don't believe Fastboot returns the phone's IMEI. It's always looked to me like a random number that's generated to show successful connectivity between the device and the Fastboot program. But then again, I could be wrong.
Anways, despite the message you got, it's looking increasingly likely that your bootloader cannot be unlocked.
PS: You retired your SGS III, but kept your Arc? The decision really befuddles me.
Click to expand...
Click to collapse
After much research I've found that when you get the "remote: oem unlock failed!" message it means you've enter an incorrect unlock code. Thing is, I know that I have entered the IMEI correctly on Sony's website, so I'm stumped there. I tried this setup in windows and got the same result, so I don't think it's fastboot or drivers anymore. It makes me wonder why I would be getting an incorrect unlock code...
To answer your PS, this phone belongs to a friend of my whom I'm doing a favor for. Note I don't have the Arc S in my sig. My retired SIII went to my wife, who was quite happy to have it.
Guanfy said:
After much research I've found that when you get the "remote: oem unlock failed!" message it means you've enter an incorrect unlock code. Thing is, I know that I have entered the IMEI correctly on Sony's website, so I'm stumped there. I tried this setup in windows and got the same result, so I don't think it's fastboot or drivers anymore. It makes me wonder why I would be getting an incorrect unlock code...
To answer your PS, this phone belongs to a friend of my whom I'm doing a favor for. Note I don't have the Arc S in my sig. My retired SIII went to my wife, who was quite happy to have it.
Click to expand...
Click to collapse
Are you sure that you left out the LAST number of the IMEI, when entering it on the website? You need to do that, else you get invalid code.
Someguyfromhell said:
Are you sure that you left out the LAST number of the IMEI, when entering it on the website? You need to do that, else you get invalid code.
Click to expand...
Click to collapse
Yup, that I have. I originally entered the 15 digit code and the website threw an error, so I deleted the last digit to get the unlock code that I tried.
same issue as LT26ii
Well I have exactly the same issue at my Xperia SL LT26ii, it just shows "oem unlock failed", do anyone know how to fix this ?
nkiy said:
Well I have exactly the same issue at my Xperia SL LT26ii, it just shows "oem unlock failed", do anyone know how to fix this ?
Click to expand...
Click to collapse
oem unlock failed
Problem solved!
Hey guys, I just unlocked my LT26ii after many times of "oem unlock failed". Here's my solution:
0. well first just remember your IMEI code, cause later it will changed.
1. Download a new firmware in ftf format.
2. Update firmware with Flashtool.
3. Turn on your phone and get you imei code. Now you should got a new one different from the previous one.
4. Use the NEW imei to unlock your phone.
Good Luck !
PS: dont guarantee that worked but if it does please let'me know.

Unlocking Bootloader Trouble

Hello,
I bought a Sony Xperia Acro S off eBay and the seller must have forgotten to mention that it's a Chinese version phone.
Navigating settings and switch the language to English was simple enough, but then I realize it's bloated with Chinese apps and lacks 'Play Store' and has something called 'PlayNow' in its place -- which is the real problem.
After searching a while I decided my best bet would be to unlock the bootloader so that I could install something different using Sony's flashing tool.
This, of course, requires me to first unlock the bootloader.
I attempted to follow the directions at the Sony 'unlock boot loader' sire in order to do this, but unfortunately at step 15 things don't go well for me and when I enter the command prompt fastboot.exe -i 0x0fce getvar version , instead of getting a version return I get a list of command (attachment) options and I have yet to find anywhere after 8 hours of forum searching to tell me what to do. All I see is, "You should get..." yeah, well... I should... but I don't.
My next move was to try and use flashtool in order to unlock the bootloader. So I downloaded it, installed it, then installed the accompanying driver program with all boxes checked.
I clicked the BLU button and set it to flashmode as it told me, then switched to fastboot mode as it told me, then it when it gets to the unlocking part o the process it shows my IMEI number and asked for the bootloader key that Sony sent me.
I'm feeling pretty good at this point and enter the key and then what do I see? FAILED (remote: oem unlock failed!)
I really don't know what my next move is. I'm just hoping someone her has my missing information.
If anyone has any ideas I'd appreciate it. Thanks.
Try Again, make sure you entered the right IMEI Key (i acidently typed the wrong one a couple of times)
also make sure Fastboot, ADB are installled, (ALSO make sure that the drivers for the Device are installed)
if you need anything just ask or google it, im sure someone else can help you more than i can aswell
If all fails your boot-loader may be non UNLOCKABLE
Envious_Data said:
Try Again, make sure you entered the right IMEI Key (i acidently typed the wrong one a couple of times)
also make sure Fastboot, ADB are installled, (ALSO make sure that the drivers for the Device are installed)
if you need anything just ask or google it, im sure someone else can help you more than i can aswell
If all fails your boot-loader may be non UNLOCKABLE
Click to expand...
Click to collapse
It is unlockable... that's one of the first steps. Don't forget that Sony even sent me the unlock key.
The IMEI is automatically detected by flashtool and it is uneditable. It's correct nonetheless.
Unlock Code sending by Sony
kcorrie4 said:
It is unlockable... that's one of the first steps. Don't forget that Sony even sent me the unlock key.
The IMEI is automatically detected by flashtool and it is uneditable. It's correct nonetheless.
Click to expand...
Click to collapse
Hi, I have an unlock code given from official Sony Developer website, but i can't go into flashboot mode ( unlock alowed: no ). There is any way to impact the unlock code given?
Thanks
[Xperia Acro HD, rooted, cwm, unlock allowed: no]

Unlocking bootloader killed my C1905, help please!...

Hi everyone
I wanted to try going from the stock Android 4.3 to cm12.1.
My phone was bootloader locked but unlocking was allowed.
So I followed the process on the sony website and got the unlock code and entered it.
Phone then refused to restart, stuck on booting screen.
Eventually using Flashtool, I found a stock rom and reflashed that, still wouldn't boot. Then I relocked the bootloader and now it boots again.
However, it now says sim card is invalid and refuses to let me join the phone network (I'm in Malta, using the Go network).
Also, I'm now unable to reunlock the bootloader as it says failed when I try doing so using fastboot and says it cannot be officially unlocked when using flashtool. Worryingly for me, in settings it now says "no" for unlock allowed (it used to say "Yes").
So now, I've got a phone that otherwise works normally again except that it doesn't actually work as a mobile phone! Please help me someone as Sony have already refused to do anything to help, their customer (dis)service people simply point out that once you unlock the bootloader - even if that itself causes the problem - they will no longer help you. Cheers, thanks Sony, no way will I ever buy any product from you ever again!
What a crap day...
andrewh1973 said:
Hi everyone
I wanted to try going from the stock Android 4.3 to cm12.1.
My phone was bootloader locked but unlocking was allowed.
So I followed the process on the sony website and got the unlock code and entered it.
Phone then refused to restart, stuck on booting screen.
Eventually using Flashtool, I found a stock rom and reflashed that, still wouldn't boot. Then I relocked the bootloader and now it boots again.
However, it now says sim card is invalid and refuses to let me join the phone network (I'm in Malta, using the Go network).
Also, I'm now unable to reunlock the bootloader as it says failed when I try doing so using fastboot and says it cannot be officially unlocked when using flashtool. Worryingly for me, in settings it now says "no" for unlock allowed (it used to say "Yes").
So now, I've got a phone that otherwise works normally again except that it doesn't actually work as a mobile phone! Please help me someone as Sony have already refused to do anything to help, their customer (dis)service people simply point out that once you unlock the bootloader - even if that itself causes the problem - they will no longer help you. Cheers, thanks Sony, no way will I ever buy any product from you ever again!
What a crap day...
Click to expand...
Click to collapse
i think you have missing something after unlock bootloader, and you can't give any wrong or false to sony. because you're do this with your vault and you're is vault your warranty. and sony have give you a warn sign before do this, and you accepted because you do it.
so no any vendor problem if you fail or your device is bricked.
after unlock bootloader, you need to reflash your stock rom again and do a full wipe data and cache from flashtool before flash any rom. after wipe and flash you can check your device is boot up perfectly without any problem. you only missed that. try to reunlock if still can, but try to unlock your bootloader using flashtool too.
Nicklas Van Dam said:
i think you have missing something after unlock bootloader, and you can't give any wrong or false to sony. because you're do this with your vault and you're is vault your warranty. and sony have give you a warn sign before do this, and you accepted because you do it.
so no any vendor problem if you fail or your device is bricked.
after unlock bootloader, you need to reflash your stock rom again and do a full wipe data and cache from flashtool before flash any rom. after wipe and flash you can check your device is boot up perfectly without any problem. you only missed that. try to reunlock if still can, but try to unlock your bootloader using flashtool too.
Click to expand...
Click to collapse
Well on Sony's site it also says that any repair will be chargeable once you do unlock, so I would have expected them to have done something at a charge not to totally refuse to help at all. I accept what you say but I DID follow the instructions exactly, I unlocked the bootloader and rebooted it as instructed and from there it went wrong - refused to boot.
Anyway, I have tried several stock roms including even using the Sony tools and letting it do a "repair" reflash, all to no avail. "Sim Invalid" is what I'm left with and what I have noticed when flashing every stock rom with flashtool, what is missing from the "Wipe" list is cache, the only option there is "USERDATA". Is there something wrong with the flashtool perhaps?
Even when I relock the bootloader using flashtool (which I seem to need to do every time even after flashing a stock rom) it still seems to regard the phone as unlocked, or at least when you go the "BLU" screen it shows only the option to relock each time. Something has definitely screwed up here.
I got a UK stock rom via Xperifirm and used Flashtool to create the TFT from that. Still no joy. I'm assuming something is wrong with the sim lock, somehow, but how to fix this? I'm realising that reflashing stock roms doesn't totally return the phone to factory condition, so what am I missing here please? Is the phone totally stuffed now or is there still some way to repair it?
Ok so further to this, I just gone into service menu -> Sim lock and I see this:
[x] Network 0
[x] Network subset 0
[x] Service provider 0
[x] Corporate 0
[x] SIM 0
So is the phone locked or not? What does the x mean? The phone was previously fully sim unlocked as I bought it without a contract from Amazon. Is there a way to fix this please?
help me please
i have xperia m, after unlocking bootloader it stuck on bootlooping, i have not enable usb debugging...any way to fix it?

Please HELP to unlock BootLoader - nothing works, looking for unofficial method

Hello there,
I've searched through all the googles and i can't seem to be able to unlock my mi 5S
Bought a half dead phone, glitchy screen and bad battery. Purchased new parts and had them installed.
Phone came with unlocked BL and lineage OS, but i f-ed it up by flashing a miui rom that locked the BL.
Then I found out the phone was actually bound to an existing MI account, so I cannot unlock it with the official tool.
Phone is in edl mode, i tried searching for an unlocked emmc_appsboot.mbn but no luck.
Can anyone please advise how to unofficialy unlock the bootloader?
I'm about to sell it for parts as I've been trying to fix it for the past week ... :crying:
Not sure if there is a way, because that way could also be used for a stolen device...
My suggestion is that you contact your seller and ask him for his Xiaomi account or that he deletes the phone from his account.
Weird thing though, the phone does not get locked if you just flash an official ROM. You specifically have to choose "flash + lock" in the official flashing application to have it locked again.
patoberli said:
Not sure if there is a way, because that way could also be used for a stolen device...
My suggestion is that you contact your seller and ask him for his Xiaomi account or that he deletes the phone from his account.
Weird thing though, the phone does not get locked if you just flash an official ROM. You specifically have to choose "flash + lock" in the official flashing application to have it locked again.
Click to expand...
Click to collapse
I've been emailing with xiaomi support, gave them all the details. Maybe I can convince them to remove the account.
Before flashing i was checking online on how to do it with miflash tool but i missed the radio buttons and default was clean and lock ..
After a few documents submitted through [email protected] they have removed the unknown mi account.
To conclude, I have not found any way of unlocking the bootloader except for the official way.
Also, be careful when flashing with miflash, don't lock your phone by mistake.
Ah great that it worked!

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