Develop Bugs

[Q] Sim Unlocked then Re-locked HELP!

gosh where do i start from.. ok my little brother brought this phone from
a friend and he used hes vodafone sim card which didnt work!
i then inserted my optus sim card which didnt work.. then i followed these steps..
http://forum.xda-developers.com/showthread.php?t=1034087
after my sim card was unlocked i was able to make calls.. 24 hours later it was locked again :S when i try to make a phone call a lady on the phone speaks and says.. "this handset is blocked my the optus network call this 1300 number etc etc"
ok so i been browsing the net for sim unlock tutorials and so on.. and these tut's show me that when a sim card is inserted the phone asks for a Sim network unlock code? the thing is i dont get that option.. my phone boots fine i can download browuse go on facebook flash my rom(which i already did)
but everytime i call out that lady speaks!
i have a SE xperia arc LT15I can anyone help me please?

You posted a link to the unlocking process of the bootloader which has nothing to do with a simlock...as i had some problems with a simlock message appering after installing FreeXperia on mit Xperia Pro i searched the Forums this is something lowlevel and you can't do anything about it aside from get an unlock code when you really have simlock...but since you can actually make a phone call and get a message from your provider i think you should contact them

Bootloader unlocking and SIM unlocking are two separate things.
If you phone was SIM/network unlocked, it is ONCE and PERMANENT. It will not relock.
Contact your carrier.

ok im not going to start other thread now im getting this error
"Your SIM card does not allow a connection to this network"
i tried other sim cards too. but i read here http://forum.xda-developers.com/showthread.php?t=1252019 at post #2
2. Write a Working TA backup from another phone (same model)
3. Restore Security Units.
Thats all, now your phone should boot well but is 90% possible that you dont get Signal so for fix that we need to unlocking.
If this last thing is needed you can refer to this thread:
http://forum.xda-developers.com/show....php?t=1232033
Click to expand...
Click to collapse
but the link he posted says "Invalid thread specified. If you followed a valid link, please notify the administrator" this is what happened my sony arc was bricked then i unbricked it then started to see the "Your SIM card does not allow a connection to this network" error thanks.

here is also a screenshot of my service info..
i43.tinypic.com/afai4o.png

Simlock

Just wondering how this happened cos it never came up before when I used flashtool.
18/037/2012 14:37:15 - WARN - This file is ignored : simlock.ta

X-Droidinary said:
Just wondering how this happened cos it never came up before when I used flashtool.
18/037/2012 14:37:15 - WARN - This file is ignored : simlock.ta
Click to expand...
Click to collapse
Really don't know exactly what it does, but generally you don't include this file when you bundle a rom with flashtool, so no harm.

X-Droidinary said:
Just wondering how this happened cos it never came up before when I used flashtool.
18/037/2012 14:37:15 - WARN - This file is ignored : simlock.ta
Click to expand...
Click to collapse
me also facing this problem,its make me cannot flash other kernel,can someone help pls

X-Droidinary said:
Just wondering how this happened cos it never came up before when I used flashtool.
18/037/2012 14:37:15 - WARN - This file is ignored : simlock.ta
Click to expand...
Click to collapse
LoveYou4ever said:
me also facing this problem,its make me cannot flash other kernel,can someone help pls
Click to expand...
Click to collapse
Have you guys got a sim locked device. .?

now.i.feel said:
Have you guys got a sim locked device. .?
Click to expand...
Click to collapse
Mine isn't supposed to be simlocked but now it says it is and I don't even know how it happened.
Sent from Noah's Arc using Tapatalk 2

X-Droidinary said:
Mine isn't supposed to be simlocked but now it says it is and I don't even know how it happened.
Sent from Noah's Arc using Tapatalk 2
Click to expand...
Click to collapse
Lol. Get it sim unlocked then you try again. It will work surely then.

now.i.feel said:
Lol. Get it sim unlocked then you try again. It will work surely then.
Click to expand...
Click to collapse
how do i unlock it? That's the whole point of me posting about this.

After i unlock my bootloader, i face this issue. but flashing finished successfully. Sometime it may be a DRM key related item.

Dont flash that file. its simlock data and if you flash it on a phone with different imei then you will kill the phone without any way other than sony service center to fix it.

Don't worry about that, i always get that warning and there was no problem.

coolbuy said:
Dont flash that file. its simlock data and if you flash it on a phone with different imei then you will kill the phone without any way other than sony service center to fix it.
Click to expand...
Click to collapse
I've read this 'simlock.ta' thread with some interest because I have a similar issue myself.. Might you have any suggestions?
In short, my Xperia (Ray) refuses to read my SIM card. In fact, it doesn't even ask me for my PIN number, it just boots as normal but I have no connection to any network. I've tried using the SIM card in another phone and it works fine, therefore the problem is with the phone itself.
I'd recently had my phone network & bootloader unlocked by wotanserver using the test point method - because of this I thought the DRM keys would be fine (e.g. TrackId & Timescape still worked). However, when I was updating from GB .42 to .62 OTA (to flash a GB ROM) my phone bricked! So, I ended up using s1tool to restore the locked bootloader. Then I used flashtool to flash a stock ICS ftf file. It seemed to work (the phone rebooted) but it was then I noticed that the SIM card wasn't being recognised. Also, in the Flashtool log I noticed that a blue line was there saying 'this file is ignored simlock.ta'.
Hard resets & updating with Sony Update Service isn't working and I'm really confused at this stage.
Is my phone screwed for good?

Same Problem with Xperia J
seamo123 said:
I've read this 'simlock.ta' thread with some interest because I have a similar issue myself.. Might you have any suggestions?
In short, my Xperia (Ray) refuses to read my SIM card. In fact, it doesn't even ask me for my PIN number, it just boots as normal but I have no connection to any network. I've tried using the SIM card in another phone and it works fine, therefore the problem is with the phone itself.
I'd recently had my phone network & bootloader unlocked by wotanserver using the test point method - because of this I thought the DRM keys would be fine (e.g. TrackId & Timescape still worked). However, when I was updating from GB .42 to .62 OTA (to flash a GB ROM) my phone bricked! So, I ended up using s1tool to restore the locked bootloader. Then I used flashtool to flash a stock ICS ftf file. It seemed to work (the phone rebooted) but it was then I noticed that the SIM card wasn't being recognised. Also, in the Flashtool log I noticed that a blue line was there saying 'this file is ignored simlock.ta'.
Hard resets & updating with Sony Update Service isn't working and I'm really confused at this stage.
Is my phone screwed for good?
Click to expand...
Click to collapse
Did you find a solution for your problem?
In reality, I have the same problem with an xperia j (ST26i) , with some differences:
Initial Problem:
- The mobile belongs to my cousin, she updated it with the sony update center to the latest version (JB 4.1.2) and there: problem with the wifi when the sim.
- I got the mobile, and downgrade to the 4.0.4 version, I've tried 4 different versions:
-> ST26i_11.0.A.3.18_Global
-> ST26i_11.0.A.7.5_CE
-> ST26i_11.0.A.3.28_WE
-> St26i_4.0.4_11.0.A.3.28_CE3
I had always the problem with the wifi when the sim plugged.
Finally I've tried also the UNOFFICIAL CM 10, with no success
- I found a solution with the apk wifix manager witch worked with the 28 WE version of the firmware.
But I've continued to search an other solution, and I've remarked that when I flash the rom I always get the Warn: "This file is ignored : simlock.ta "
After some research I get an advice by a member of XDA to rename the file as "preset.ta", AND THERE, it works no warning ... BUT the sim is blocked (not locked) and I have always the message (invalid card).
I've tried to reflash the firmware many times, to relock the bootloader (with appropriate ftf proposed in this forum ), Tried to use the sony update service .. But I have always the same problem (INVALID CARD)
I've also tried to format everything with CWM (system,card,cache) and made a sdcard partition, and NO way.
So, can any body help me with that please?!
Note : I'm in the middle east zone, some suggestions in the web talk about re-installing the official O2 rom, but I've searched this ROM with no success.

X-Droidinary said:
Just wondering how this happened cos it never came up before when I used flashtool.
18/037/2012 14:37:15 - WARN - This file is ignored : simlock.ta
Click to expand...
Click to collapse
I have this error on XPERIA SP C5303 trying to flash 12.0.A.1.284 on top of 12.0.A.1.257. But my phone is SIM Locked and I know it. And I thought that rewriting simlock.ta from unlocked firmware unlock the phone as well. But flashtool skipping that file. It's really annoying !!! Don't know what to do to unlock it now

pxnx said:
I have this error on XPERIA SP C5303 trying to flash 12.0.A.1.284 on top of 12.0.A.1.257. But my phone is SIM Locked and I know it. And I thought that rewriting simlock.ta from unlocked firmware unlock the phone as well. But flashtool skipping that file. It's really annoying !!! Don't know what to do to unlock it now
Click to expand...
Click to collapse
You should be happy it isn't flashing. FLASHING SOMEONE ELSE'S TA MAY HARD-BRICK YOUR DEVICE. In this state, I've heard even sony need to replace entire motherboard.

well i have sony tipo dual st21i2 android phone and i have same problem with device my phone is dual sim phone and both sim are work well some time ago but when itry to update firmware using flash tool and than i see the 2nd sim is working stopped suddenly and sim 1 is working good and if i put only sim 2 in the phone its also working good and if sim 1 ony present in phone its good working also ,,,,,,,but problem start when i put both sim inside the phone and than i try different type of firmwares but no success bootloder unlock and relocked also but no result but my doubt is there i try a secret code and if this code is cause the problem in my phone *#*#7378423#*#* so if any one have idea to solve my problem please share here

Unlock t889 issue - SOLVED

SOLVED:::::::::: Thanks to Pirobo_Colmbino
I recently was issued an official unlock code for my t889 from tmo. I tried to unlock the device using an ATT sim and got the "network unlock unsuccessful" message. Apparently, I'm a dunce and didn't read AND follow the instructions properly and entered the wrong code more than once. Now I am told that my device is PERMANENTLY LOCKED and cannot be unlocked. Is this correct? Is there a way to fix it? HELLLP

guardm said:
I recently was issued an official unlock code for my t889 from tmo. I tried to unlock the device using an ATT sim and got the "network unlock unsuccessful" message. Apparently, I'm a dunce and didn't read AND follow the instructions properly and entered the wrong code more than once. Now I am told that my device is PERMANENTLY LOCKED and cannot be unlocked. Is this correct? Is there a way to fix it? HELLLP
Click to expand...
Click to collapse
Hi, im not sure if this is gonna help, but the way I unlock mine was with the help of a simple youtube search. Im new her so i cant post a link.
Steps: dial *#197328640#
step 1: umts
step 2: debug screen
step 3: phone control
step 4 network lock
step 5: perso sha256 off ( wait 30 seconds than hit the menu key and hit back)
step 6: nw lock nv data initialliz (wait about 1 minute and exit.
reboot and that should be it.
Try that out and if it does not work "meaning you dont see all of the options" all you have to do is downgrade to an older version of Stock " yes you will have to root again but it gets the job done.
If it helps dont forget to hit thanks.

Pirobo_Colombino said:
Hi, im not sure if this is gonna help, but the way I unlock mine was with the help of a simple youtube search. Im new her so i cant post a link.
Steps: dial *#197328640#
step 1: umts
step 2: debug screen
step 3: phone control
step 4 network lock
step 5: perso sha256 off ( wait 30 seconds than hit the menu key and hit back)
step 6: nw lock nv data initialliz (wait about 1 minute and exit.
reboot and that should be it.
Try that out and if it does not work "meaning you dont see all of the options" all you have to do is downgrade to an older version of Stock " yes you will have to root again but it gets the job done.
If it helps dont forget to hit thanks.
Click to expand...
Click to collapse
Thanks for your reply. I tried this before and all the worked until it comes to step 5. When I go back, the item "nw lock nv initialliz" (in your step 6), isn't there to select. Perhaps downgrading is the answer?
The part I don't seem to understand is that TMO says because I entered the wrong code multiple times, I lost the ability to unlock. Does this method overwrite or fix the permanent lock they spoke of?

guardm said:
Thanks for your reply. I tried this before and all the worked until it comes to step 5. When I go back, the item "nw lock nv initialliz" (in your step 6), isn't there to select. Perhaps downgrading is the answer?
The part I don't seem to understand is that TMO says because I entered the wrong code multiple times, I lost the ability to unlock. Does this method overwrite or fix the permanent lock they spoke of?
Click to expand...
Click to collapse
Yeah if u dont see it you must downgrade.
and as far as the overwrite im not sure. sorry

Pirobo_Colombino said:
Yeah if u dont see it you must downgrade.
and as far as the overwrite im not sure. sorry
Click to expand...
Click to collapse
Thanks I will try it. Just gotta go find the downgrade rom.

Pirobo_Colombino said:
Yeah if u dont see it you must downgrade.
and as far as the overwrite im not sure. sorry
Click to expand...
Click to collapse
You, sir are correct. I was able to downgrade via Odin, but I lost some functions (which didn't matter since it was only temporary). I performed the steps you provided and tested with an ATT sim. It worked. Then I updated to current stock ROM and rooted. Tested again with ATT sim and my device is still unlocked. Thanks for your help. I hope anyone else who runs into this issue, can find this post and learn like I did.

guardm said:
You, sir are correct. I was able to downgrade via Odin, but I lost some functions (which didn't matter since it was only temporary). I performed the steps you provided and tested with an ATT sim. It worked. Then I updated to current stock ROM and rooted. Tested again with ATT sim and my device is still unlocked. Thanks for your help. I hope anyone else who runs into this issue, can find this post and learn like I did.
Click to expand...
Click to collapse
What Version were you on when you could not unlock it. And what version did you flash?

guardm said:
You, sir are correct. I was able to downgrade via Odin, but I lost some functions (which didn't matter since it was only temporary). I performed the steps you provided and tested with an ATT sim. It worked. Then I updated to current stock ROM and rooted. Tested again with ATT sim and my device is still unlocked. Thanks for your help. I hope anyone else who runs into this issue, can find this post and learn like I did.
Click to expand...
Click to collapse
Im glad i could help. :good:

gedster314 said:
What Version were you on when you could not unlock it. And what version did you flash?
Click to expand...
Click to collapse
I'm not so sure it had much to do with the version, although I am no expert dev. Mind you, this happened in a short period of time.
TIMELINE:
I was on The stock (shipped) rom when I first bought my GN2. I got it new and broke the seal on the box. Upon opening and starting the device, I got an OTA update (don't remember the build but not the LL4 ota). I started doing some reading on XDA, since like most, I like tinkering and tweaking. Not long after that (Mid Jan 2013) I got the OTA from TMO that had "minor fixes and security changes". This is when I read somewhere on XDA that it is not recommended that we accept the OTA update. But it was too late; I had already done it. I came across the unlock instructions posted earlier in this thread but I couldn't get pass all the steps. A few days later I rooted via ROOT66_TMO_UVALL4 rom, which gave me access to SuperUser. [I have this ZIP saved if anyone wants it and wants to show me how share it.] Then I got an official unlock code from TMO.
I followed these instructions that TMO sent me with the unlock code
Thank you for taking the time to contact T-Mobile. Below you will see the Instructions for unlocking your Samsung device.
Please be advised a non T-Mobile SIM card MUST be used to unlock this device.
1. Insert a NON T-Mobile SIM & turn Device on
2. The Device will automatically prompt you to enter code into an empty field.
3. Click/Tap in the empty field above the "Unlock & Dismiss" options (this will display a key pad on the screen).
4. Using the key pad input the Unlock Code provided by T-Mobile.
5. Press the Back button to remove the keyboard from screen.
6. Click/Tap the "Unlock" option; handset should display "Network Unlock Successful".
Please note that if you are unlocking a flip device please use steps 1, 2, 3 and 6.
Click to expand...
Click to collapse
In my haste, I didn't follow the instruction EXACTLY as written. Somehow I managed to enter the unlock code while using my TMO sim and not the "NON TMO sim". When I did this, I got the message in step 6. I thought I was good from here. I tried an ATT sim a few days later to verify but it asked me again for the sim unlock code but the operation was unsuccessful. I tried entering the donor phone's screen unlock code a few times as well as zeros and 1234 and again failed. I tried again with another donor phone with the same result. TMO sent me a second unlock code which also failed. I did tell them that I had done the OTA update and the rep told me it shouldn't matter. I did not tell them I was rooted stock though. The rep told me that due to entering the wrong code multiple times, the device went into "security lockout" and could not be unlocked. I read into several threads and posts and could not find the answer, Thus my original post. I down graded my Rom to T889UVALJ1, successfully performed the unlock procedure posted above (NOT TMO official), and re-installed the ROOT66 rom. Everything is now working perfectly. I put in the ATT sim and it pops right up as ATT.
The real question now is, does the OTA issued by TMO block the unlock exploit and is that what they refer to when they mention "security features"?
Thank for Solving this issue goes to user Pirobo_Colombino see post 2

I encountered the same problem couple weeks ago. The problem is not caused by the TMO firmware update but rather the fact that you tried to unlock the phone using the hack you found on the internet. Per instruction on the free unlock hack online, you selected "PERSO SHA256 OFF", this step is what prevented the phone from being successfully unlocked with TMo unlock code. In order for the TMO unlock code to work, you have to select "PERSO SHA256 ON", then follow the instruction steps to unlock using TMO code. That is what I did and it worked for me. Hope this helps anyone who will run into this problem in the future. Cheers :good:

akdnj88 said:
I encountered the same problem couple weeks ago. The problem is not caused by the TMO firmware update but rather the fact that you tried to unlock the phone using the hack you found on the internet. Per instruction on the free unlock hack online, you selected "PERSO SHA256 OFF", this step is what prevented the phone from being successfully unlocked with TMo unlock code. In order for the TMO unlock code to work, you have to select "PERSO SHA256 ON", then follow the instruction steps to unlock using TMO code. That is what I did and it worked for me. Hope this helps anyone who will run into this problem in the future. Cheers :good:
Click to expand...
Click to collapse
Interesting....... This is the first I've heard of this. Not to say this info is not out there; I just never came across it. I do hope that this reaches the poster of those links (there are quite a few) as a cautionary note. Perhaps someone will post a how-to compiled with all these tidbits included.

After the sim unlock, sim card in HK still also can use it?

Yat_Fung said:
After the sim unlock, sim card in HK still also can use it?
Click to expand...
Click to collapse
I cannot say it will work with HK sim since I have NO experience with that card or even overseas. However, I can say that ATT&T sim works every time I put it in the phone. Have you ever used a HK sim in another phone? If you did and it worked, I don't see why it wouldn't work in this one.

Provide link?
Pirobo_Colombino said:
Hi, im not sure if this is gonna help, but the way I unlock mine was with the help of a simple youtube search. Im new her so i cant post a link.
Steps: dial *#197328640#
step 1: umts
step 2: debug screen
step 3: phone control
step 4 network lock
step 5: perso sha256 off ( wait 30 seconds than hit the menu key and hit back)
step 6: nw lock nv data initialliz (wait about 1 minute and exit.
reboot and that should be it.
Try that out and if it does not work "meaning you dont see all of the options" all you have to do is downgrade to an older version of Stock " yes you will have to root again but it gets the job done.
If it helps dont forget to hit thanks.
Click to expand...
Click to collapse
Could you provide the links to old versions of stock because Ive been having some trouble rooting back to a baseband before vall4

Spartan2x7 said:
Could you provide the links to old versions of stock because Ive been having some trouble rooting back to a baseband before vall4
Click to expand...
Click to collapse
A quick forums search shows this
http://forum.xda-developers.com/showthread.php?t=2102380
You should find what you need here. If it helps hit the thanks button.

akdnj88 said:
I encountered the same problem couple weeks ago. The problem is not caused by the TMO firmware update but rather the fact that you tried to unlock the phone using the hack you found on the internet. Per instruction on the free unlock hack online, you selected "PERSO SHA256 OFF", this step is what prevented the phone from being successfully unlocked with TMo unlock code. In order for the TMO unlock code to work, you have to select "PERSO SHA256 ON", then follow the instruction steps to unlock using TMO code. That is what I did and it worked for me. Hope this helps anyone who will run into this problem in the future. Cheers :good:
Click to expand...
Click to collapse
Thank you so much!! Tmobile sent me the code and I was having problems unlocking my note ll till I read this info.

Samsung Tmobile
handrade773 said:
Thank you so much!! Tmobile sent me the code and I was having problems unlocking my note ll till I read this info.
Click to expand...
Click to collapse
Need help Bad.
Have a tmobile sgh-t889. Tmobile sent me an network unlock pin and entered it. Says network unlock successfull. but still no signal. restarted the device and it again asked for a network pin. did the step again and stil the same..
What could be wrong? BTW its a 4.1.1.
Pls help.

junedar said:
Need help Bad.
Have a tmobile sgh-t889. Tmobile sent me an network unlock pin and entered it. Says network unlock successfull. but still no signal. restarted the device and it again asked for a network pin. did the step again and stil the same..
What could be wrong? BTW its a 4.1.1.
Pls help.
Click to expand...
Click to collapse
Latest OTA is 4.1.2
I'm not sure how you are trying to do your unlock. In order to use the unlock method detailed in post #2, I needed to downgrade my firmware. The method in post 2 WILL NOT work after the OTA update.
If you are using the instructions from your carrier, follow the instructions they emailed you EXACTLY. If you have issues with the carrier instructions, contact them; It's up to them to give you proper tech support on THEIR product.
As I understand, the "hack" method is for mostly intended those who have modded/altered/rooted/other-than-stock devices. Whichever method you use, be aware, YOU RUN THE RISK OF BRICKING YOUR DEVICE. That being said, research your steps BEFORE you end up with a dead device.
I AM NOT a developer nor claim to be an expert at any of these methods. However I have been modding my devices for years by reading and researching XDA. I have had success and failures and so will you. The best advice I can offer is to continue reading the posts CAREFULLY and be patient.
I hope this helps

guardm said:
Latest OTA is 4.1.2
I'm not sure how you are trying to do your unlock. In order to use the unlock method detailed in post #2, I needed to downgrade my firmware. The method in post 2 WILL NOT work after the OTA update.
If you are using the instructions from your carrier, follow the instructions they emailed you EXACTLY. If you have issues with the carrier instructions, contact them; It's up to them to give you proper tech support on THEIR product.
As I understand, the "hack" method is for mostly intended those who have modded/altered/rooted/other-than-stock devices. Whichever method you use, be aware, YOU RUN THE RISK OF BRICKING YOUR DEVICE. That being said, research your steps BEFORE you end up with a dead device.
I AM NOT a developer nor claim to be an expert at any of these methods. However I have been modding my devices for years by reading and researching XDA. I have had success and failures and so will you. The best advice I can offer is to continue reading the posts CAREFULLY and be patient.
I hope this helps
Click to expand...
Click to collapse
Yep I did in detail what has been said in post #2. ( By default my device is 4.1.1. )
When it didnt worked, I asked tmobile for the network pin. I also followed their instruction thoroughly, after i entered the pin they gave, it gave the message network unlock successfull. I noticed that there still was no signal so i restarted my device. However it still keep asking me for a network pin. When I asked them about this, they just said that they dont really know why.
I also did a factory reset.
Wonder what could be the issue. Any thoughts?

junedar said:
Yep I did in detail what has been said in post #2. ( By default my device is 4.1.1. )
When it didnt worked, I asked tmobile for the network pin. I also followed their instruction thoroughly, after i entered the pin they gave, it gave the message network unlock successfull. I noticed that there still was no signal so i restarted my device. However it still keep asking me for a network pin. When I asked them about this, they just said that they dont really know why.
I also did a factory reset.
Wonder what could be the issue. Any thoughts?
Click to expand...
Click to collapse
I would call Tmobile again and talk to someone else. Maybe ask for tier 2 support. Many times, the first person you get is a low level customer support person that only knows what the computer screen shows them unfortunately.

Not recognizing SIM card, no IMEI.

I have an unlocked Xperia Play AT&T branded, R800a originally, now reads as R800i. It does not seem to want to read SIM cards and no IMEI number shows up while trying to display it. Some threads have suggested flashing modems or something on it, but all linked threads had files that were no longer available. I was wondering how and if I could fix this.

Default Not recognizing SIM card, no IMEI.
I know this is a couple of day's old thread but have you tried flashing back to Xperia Play AT&T R800a ftf there is a link to one on this thread that is working (Tested Link is working) http://forum.xda-developers.com/showthread.php?t=1589399.Also when you said it now read's R800i what did you do if anything for it to start reading this?(it looks like you have flashed the wrong ftf:crying: correct me if i'm wrong.

tallman43 said:
looks like you have flashed the wrong ftf:crying: correct me if i'm wrong.
Click to expand...
Click to collapse
Probably, I remember trying just about everything originally just to get the bootloader unlocked. I'll try some from that link you posted.

I also have an r800a, but I unlocked boatloader though alejandrissimo's testpoint method, since it is the only one that worked with it, but it was a paid method (I don't know if it's still paid), and the IMEI method through Sony webpage doesn't work with our r800a.
Maybe you screwed up the TA by a bad unlock try and need an IMEI replace/fix. Both are also offered as a free (I think) service, just head up to this page http://unlock-bootloader.com/
Hope this helped. If you have doubts just search alejandrissimo in XDA to find he is a well known member here.
Sent from my R800a using xda app-developers app

[Q] Xperia Play R800i No Service

Hello, i have an xperia play which is R800i, it's bootloader unlocked, and should be network unlocked, if i go in that option with brackets like [] Network etc they are all with empty brackets and 0, according to some pages its fully unlocked, but still, i cannot get it to work, i've made several baseband changes, roms, etc,
what could be the problem of the phone? i bought it from someone that i usually buy stuff off, so i "shuld" be sure its not imei locked, but then, even if it was imei locked, would i be able to set a PINfor the SIM card? is there a way to check if there's a SIM card inserted in the phone from android? because i feel like it doesn't read my sim at all.
Please suggestions are welcome i tried everything, thank you

i can pay for a solution if its 100% working

hi
KActat1992 said:
Hello, i have an xperia play which is R800i, it's bootloader unlocked, and should be network unlocked, if i go in that option with brackets like [] Network etc they are all with empty brackets and 0, according to some pages its fully unlocked, but still, i cannot get it to work, i've made several baseband changes, roms, etc,
what could be the problem of the phone? i bought it from someone that i usually buy stuff off, so i "shuld" be sure its not imei locked, but then, even if it was imei locked, would i be able to set a PINfor the SIM card? is there a way to check if there's a SIM card inserted in the phone from android? because i feel like it doesn't read my sim at all.
Please suggestions are welcome i tried everything, thank you
Click to expand...
Click to collapse
i can try to fix it ..... contact me on gtalk [email protected]

kks111 said:
i can try to fix it ..... contact me on gtalk [email protected]
Click to expand...
Click to collapse
He couldn't fix it because he said its after some week date etc, but really is there nothing to try?
Also what may be the reason after i flash a kernel it stays black screen? could kernel help resolve sim issues?

hi,replying cause i have same problem..i unlocked the bootloader with sony offcial method the second i had it in my hands and flashed a custom rom(everything working fine before the flashing..)..oddly i could use data(browser youtube facebook ecc working) but no calls or text..so i relocked bootloader and flashed with seus but nothing to do,same problem data working but no calls or text..then i unlocked again tried some roms,then decided to relock and give a try again with seus..now it won't recognise the sim at all,and NO FASTBOOT,it was working fine before the 2nd flash with seus,and i know for sure it's not an hardware issue...flashed many simlock.ta(changing the name to preset.ta) with flashtools..bot nothing.now i can only flash stock tft,since fastboot is no longer working(so i can't unlock the bootloader for the 3rd time), everytime after first boot it ask to insert sim and reboot, even if it ask for pin if i set it..so it IS reading the sim...the radio is bricked,been searching for 2 weeks now, and no solution found. i contacted alejandrissimo, he said he coul fix broken trim area for 20$, but it isn't answering to my messages anymore..sorry bro it looks like our play it's gone forever as a phone, so far..

plese help.....
my xplay not working edge network but 3g working good....
many much frmwre i try...but not sucses....
im using xperia play r800i gb 2.3.4

I have the same issue in xperia play R800i too, network 2g not working anymore I tried several sim cards, not worked , my bootloader unlocked as my battery is drain in 5 hours too even I tried everything rooms kernels basebands , apps closing google play service all solutions in the net,with no hope :s , hardware problem ? it' snot because i heard someone found some new formation that it's an problem in baseband and it's happened to his Sk18i and Sony fixed it by ICS update , it's has the same problem no 2g and battery drain in 12 hours and after he updated the battery fixed it's goes for 48 ours with normal use and the 2g worked , and the problem is there is no official Ics update in our device
any one can help ?? or find solution ,, I'm sure that there are many many people who are suffering with this horrible problem

xkiasfansuryx said:
plese help.....
my xplay not working edge network but 3g working good....
many much frmwre i try...but not sucses....
im using xperia play r800i gb 2.3.4
Click to expand...
Click to collapse
Check your APNs, from my experience they get reset if you flash a generic FTF
---------- Post added at 10:09 AM ---------- Previous post was at 10:07 AM ----------
inaroom said:
hi,replying cause i have same problem..i unlocked the bootloader with sony offcial method the second i had it in my hands and flashed a custom rom(everything working fine before the flashing..)..oddly i could use data(browser youtube facebook ecc working) but no calls or text..so i relocked bootloader and flashed with seus but nothing to do,same problem data working but no calls or text..then i unlocked again tried some roms,then decided to relock and give a try again with seus..now it won't recognise the sim at all,and NO FASTBOOT,it was working fine before the 2nd flash with seus,and i know for sure it's not an hardware issue...flashed many simlock.ta(changing the name to preset.ta) with flashtools..bot nothing.now i can only flash stock tft,since fastboot is no longer working(so i can't unlock the bootloader for the 3rd time), everytime after first boot it ask to insert sim and reboot, even if it ask for pin if i set it..so it IS reading the sim...the radio is bricked,been searching for 2 weeks now, and no solution found. i contacted alejandrissimo, he said he coul fix broken trim area for 20$, but it isn't answering to my messages anymore..sorry bro it looks like our play it's gone forever as a phone, so far..
Click to expand...
Click to collapse
I'm 100% sure having a locked boot loader makes accessing fast boot impossible? If you can still flash FTF find one for an ICS Rom and see if that fixes it

SubjectSigma said:
Check your APNs, from my experience they get reset if you flash a generic FTF
---------- Post added at 10:09 AM ---------- Previous post was at 10:07 AM ----------
I'm 100% sure having a locked boot loader makes accessing fast boot impossible? If you can still flash FTF find one for an ICS Rom and see if that fixes it
Click to expand...
Click to collapse
thanks for replying, i reflashed with wotan and now i have unlocked bootloader, and can flash but the problem on 3g stiil exist. i'm on superjellybean8, and sometimes it will lose the signal on 3g(but data fully working) i get emergency call only,i can browse and other data task like facebook etc, but no call or text, so i turn airplane mode on off until it gets the signal(wich sometimes is very very painful and slow..). i usually get no problem on 2g..so may i start thinking it could be hardware problem on the 3g antenna or something? i've been using it for a couple month now,if i could get rid of the 3g problem it would be great..it makes me miss some important calls you know..

inaroom said:
thanks for replying, i reflashed with wotan and now i have unlocked bootloader, and can flash but the problem on 3g stiil exist. i'm on superjellybean8, and sometimes it will lose the signal on 3g(but data fully working) i get emergency call only,i can browse and other data task like facebook etc, but no call or text, so i turn airplane mode on off until it gets the signal(wich sometimes is very very painful and slow..). i usually get no problem on 2g..so may i start thinking it could be hardware problem on the 3g antenna or something? i've been using it for a couple month now,if i could get rid of the 3g problem it would be great..it makes me miss some important calls you know..
Click to expand...
Click to collapse
I'm pretty sure the GSM attenna is on the top left on the opposite of side of the power button, have you dropped it recently?
Just occurred to me now, call your service provider and see if the 3G tower in your area is undergoing maintenance

SubjectSigma said:
I'm pretty sure the GSM attenna is on the top left on the opposite of side of the power button, have you dropped it recently?
Just occurred to me now, call your service provider and see if the 3G tower in your area is undergoing maintenance
Click to expand...
Click to collapse
that's what happens.. it get the net but then give the emergency calls only message..

inaroom said:
that's what happens.. it get the net but then give the emergency calls only message..
Click to expand...
Click to collapse
I wouldn't post your IMEI on the internet

SubjectSigma said:
I wouldn't post your IMEI on the internet
Click to expand...
Click to collapse
thanks for the advice didn't think about it..

inaroom said:
that's what happens.. it get the net but then give the emergency calls only message..
Click to expand...
Click to collapse
no one knows?

Won't you mind if I join this thread?
I've got r800i unlocked from aliexpress which was working fine but had non-working touch-sticks.
So I tried to flash newer firmware (.79) and end up with 'no service' problem.
Like OP I have "[] Network 0" so it's definitley not become locked but it doesn't see my provider.
The funny thing is that it does see one of the local providers but only one of three.
Tried different ftf's, currently on R800i_4.0.2.A.0.84_Vodafone DE_(1247-8566).
The only thing I know from the original firmware (from flashtool) is:
Current device : R800i - CB5A1D6HYX - 1247-6268_R8D - 1245-8821_4.0.2.A.0.42 - WORLD-1-8_4.0.2.A.0.42
As I understand this one had Meteor IE baseband.
Is this problem has something with firmware or could it be antenna/hardware problem?

gvma said:
Won't you mind if I join this thread?
I've got r800i unlocked from aliexpress which was working fine but had non-working touch-sticks.
So I tried to flash newer firmware (.79) and end up with 'no service' problem.
Like OP I have "[] Network 0" so it's definitley not become locked but it doesn't see my provider.
The funny thing is that it does see one of the local providers but only one of three.
Tried different ftf's, currently on R800i_4.0.2.A.0.84_Vodafone DE_(1247-8566).
The only thing I know from the original firmware (from flashtool) is:
Current device : R800i - CB5A1D6HYX - 1247-6268_R8D - 1245-8821_4.0.2.A.0.42 - WORLD-1-8_4.0.2.A.0.42
As I understand this one had Meteor IE baseband.
Is this problem has something with firmware or could it be antenna/hardware problem?
Click to expand...
Click to collapse
I had problem with "no service" after flash FTF, so the idea its baseband related, I try flash another one, and with R800i_-80_Baseband_GSM.ftf I have success, i have carrier again. maybe help someone

mikrom.cz said:
I had problem with "no service" after flash FTF, so the idea its baseband related, I try flash another one, and with R800i_-80_Baseband_GSM.ftf I have success, i have carrier again. maybe help someone
Click to expand...
Click to collapse
Thanks bro, but I sent the faulty device back to China. That's was the first idea - to change basebands, but that didn't help either in my case.