[Solved]Help me delete data - XPERIA X10 Q&A, Help & Troubleshooting

Hey everybody,
I just got the x10 today and I've never hacked a Sony so I know nothing about it right now, so forgive my ignorance.
The phone was used and didn't come with a sim card. I've put 2 different sim cards in it that I know are good, but when I boot up it gives me a sim card error and only let's me make an emergency call.
I'm thinking that because his data is on it, it needs his sim card? I have always had cdma phones so sim cards are new to me also.
My question is... Is their a way to get into some kind of boot menu by a button combination at startup or something, where I can delete the phone data?
Any help is appreciated.
Edit... Phone is stock, not rooted, yet

Dude,it seems ur phone is sim locked and u can't use any sim card beside sim card ov network operator that locked ur phone.
Sent from my "z10i"

neoxx3m said:
Dude,it seems ur phone is sim locked and u can't use any sim card beside sim card ov network operator that locked ur phone.
Sent from my "z10i"
Click to expand...
Click to collapse
How would that happen? The phone is legit, no outstanding bill on that account and its not stolen. Are you saying I need his sim card to unlock it so I can use another?
Just to give you more info, when the lockscreen comes up, it says "sim card is faulty" but if I hold power and select airplane mode, then turn off airplane mode, it let's me past the lockscreen and then I get a toast box that says "sim is not provisioned mm2"
The phone was on at&t when it was used. I don't have an at&t acct. For now I just want to learn about it and root/mod it. Maybe ill call at&t.

Might be another issue :
Some anti-theft antivirus programs are able to lock your phone for your sim-card only (to prevent using another sims when phone is stolen).
If its set as device-manager, it also cant be disabled (requires some password).
So, try to boot up your phone without SIM card ant check this first. If device-manager is not set, then your phone is surely simlocked.

Thanks for the reply, I've tried booting up without a sim card and it gives me an error that no sim is installed and will only let me make an emergency call.
I called at&t last night and the rep asked me to hold the menu + return buttons while pressing power and I should get an option to hard reset the phone. That didn't work so she patched me to Sony. They had me download Sony pc companion and sent me instructions to "repair" it.
He said it was 1 of 2 problems. It's a "software glitch" or a broken sim port.
If the repair won't fix it, ill have to send it in and for $185 they'll fix it (yeah right). When I get home ill try the pc companion. This phone is in mint condition and was fully working before the guy that gave it to me went to an iPhone.

wikdNoob said:
Thanks for the reply, I've tried booting up without a sim card and it gives me an error that no sim is installed and will only let me make an emergency call.
I called at&t last night and the rep asked me to hold the menu + return buttons while pressing power and I should get an option to hard reset the phone. That didn't work so she patched me to Sony. They had me download Sony pc companion and sent me instructions to "repair" it.
He said it was 1 of 2 problems. It's a "software glitch" or a broken sim port.
If the repair won't fix it, ill have to send it in and for $185 they'll fix it (yeah right). When I get home ill try the pc companion. This phone is in mint condition and was fully working before the guy that gave it to me went to an iPhone.
Click to expand...
Click to collapse
Might be both - hardware malfunction or simple simlock. Personally expect simlock. My phone is not simlocked and when turned on it can run without sim card simply as PDA.
Try to flash your phone with generic WWE ROM and try again. Or before, check if phone doesnt have usb debugging on.
Afraid that no, but try to look with flashtool or adb (if yes, we can make full wipe within xrecovery)

HeliumX10 said:
Might be both - hardware malfunction or simple simlock. Personally expect simlock. My phone is not simlocked and when turned on it can run without sim card simply as PDA.
Try to flash your phone with generic WWE ROM and try again. Or before, check if phone doesnt have usb debugging on.
Afraid that no, but try to look with flashtool or adb (if yes, we can make full wipe within xrecovery)
Click to expand...
Click to collapse
If its sim locked then I'd think that I could use the previous owners sim to get into the system, right? Then how do I sim unlock?
I can't check for USB debugging because I can't get past the emergency call only screen.
I've got the pc companion downloaded on my working phone, when I get home I a couple of hours I'm gonna xfer it to the comp and run it, hopefully that'll fix it. If not, ill wait till Monday and get the previous owners sim and try that. If that doesn't work.... I'm gonna get the night vision goggles back that I traded for this phone, lol.
Running this phone without a sim is exactly what I want, just as a pda. How'd you do it, or better yet, what it called, sim unlocking? I can look for a guide, but I don't even know what its called. I feel really dumb about this phone, sorry bout that, if you came to the evo3d forum I could give you all the help you needed.

wikdNoob said:
Running this phone without a sim is exactly what I want, just as a pda. How'd you do it, or better yet, what it called, sim unlocking? I can look for a guide, but I don't even know what its called.
Click to expand...
Click to collapse
OK then If you want to use your phone as pda, without gsm or data connection, then the simpliest thing you can do is to flash stock generic ROM (you dont have to care about baseband and so on).
However you need to do a sim-unlock first because otherwise it will be still locked on the operator. Heart about many unlocking methods on websites, eg. this one (really expensive):
http://www.mobile-unlocker.com/sony-ericsson-xperia-x10/rs2wp9/
Never tried (always buying phone without sim-lock).
What operator is your phone locked?
YOu probably have to google about your exact operator locked version, hopefully you will find unlocking code or online service for it.

BAM! I got it, thanks for all your help. I used the pc companion and chose repair, I lost all data but that's ok, I was gonna erase data anyway. When I boot up it still gives me a notif that the sim is not provisioned but I can still get into the system.
Time to start hacking away at this thing, I've got a lot to learn I'm sure. I downloaded flashtool and it says it'll root so I'm gonna try that. I'm open to any more help you can give out, you probably think that some of the easy stuff is common knowledge but even the smallest stuff will help me get started. I'm gonna start reading in the sticky section, thanks again for the replies.
Also, after the repair, I have a different lockscreen, it looks like an iPhone lock kinda. Before, I had the lock that went up and right on a curve kinda, how do I get back to that one?

wikdNoob said:
Also, after the repair, I have a different lockscreen, it looks like an iPhone lock kinda. Before, I had the lock that went up and right on a curve kinda, how do I get back to that one?
Click to expand...
Click to collapse
Now i understand why you wasnt able to get into system without sim You were on old android 1.6 which was default OS when X10i was released. But there were two big software updates - 2.1 and last year our beloved 2.3.3.
Thats why you have different lockscreen. In 1.6 it was shaped like half-circle, in 2.3 its just a simple horizontal slide... But there is not any solution how to get this lockcreen back as I know. BTW.: Also liked the old one lockcreen
Everytime you will need a help, post and we will surely help you !!

HeliumX10 said:
Thats why you have different lockscreen. In 1.6 it was shaped like half-circle, in 2.3 its just a simple horizontal slide... But there is not any solution how to get this lockcreen back as I know. BTW.: Also liked the old one lockcreen
Click to expand...
Click to collapse
Ok, I'm starting to get it now... My system info says
Firmware version 2.1-update1
Baseband 2.1.65
Kernel 2.6.29
So far I've rooted, installed xrecovery and unlocked the bl. All the roms I've looked at say I need a higher baseband to use that rom. Can I use the pc companion to update to 2.3.3, and is it gonna cause an issue since I have a custom recovery and unlocked bl? The reason I ask is because on an LG I had, it would brick if you did an official update with a custom recovery.

wikdNoob said:
My system info says
Firmware version 2.1-update1
Baseband 2.1.65
Kernel 2.6.29
Click to expand...
Click to collapse
Ohh, branded phones are really loosers It seems that your version wasnt updated to 2.3.3, on which are based all roms for X10i and X10a.
wikdNoob said:
So far I've rooted, installed xrecovery and unlocked the bl. All the roms I've looked at say I need a higher baseband to use that rom. Can I use the pc companion to update to 2.3.3, and is it gonna cause an issue since I have a custom recovery and unlocked bl? The reason I ask is because on an LG I had, it would brick if you did an official update with a custom recovery.
Click to expand...
Click to collapse
I recommend you to use Flashtool intead There are problems to get the ftf file with generic ROM, which also includes .71 baseband which is surely needed for any custom ROM. But I think this is simplier solution. If you want active link to FTF bundle I will post it (also with guide, already wrote it for another users).
You can also use PC Companion, and it surely dont affect your phone in any way. If you rooted it and installed xrecovery its surely not problem (I performed this once on my device). Dont know about unlocked bootloader (dont have it and dont want to have it ), but think thats also not problem.
You can brick X10i only if you flash kernel and something unexpected happens (cable unplug etc...).
Wow, 200th post - will celebrate my anniversary

HeliumX10 said:
Ohh, branded phones are really loosers It seems that your version wasnt updated to 2.3.3, on which are based all roms for X10i and X10a.
I recommend you to use Flashtool intead There are problems to get the ftf file with generic ROM, which also includes .71 baseband which is surely needed for any custom ROM. But I think this is simplier solution. If you want active link to FTF bundle I will post it (also with guide, already wrote it for another users).
You can also use PC Companion, and it surely dont affect your phone in any way. If you rooted it and installed xrecovery its surely not problem (I performed this once on my device). Dont know about unlocked bootloader (dont have it and dont want to have it ), but think thats also not problem.
You can brick X10i only if you flash kernel and something unexpected happens (cable unplug etc...).
Wow, 200th post - will celebrate my anniversary
Click to expand...
Click to collapse
Got it, I installed DiXpreia 7 'avenger' using xrec for Rom and flashtool for the ftf file. wow, what a difference in graphics, this is cool.
I appreciate all the time you've spent on me. Congrats on the 200th, I'm helping you stack up some thanks' too
One last thing, what's the benifit of an unlocked bl? And would it benifit me to unbrand since I have a custom Rom?

wikdNoob said:
I appreciate all the time you've spent on me. Congrats on the 200th, I'm helping you stack up some thanks' too
Click to expand...
Click to collapse
Haha, thanks bro !
wikdNoob said:
One last thing, what's the benifit of an unlocked bl? And would it benifit me to unbrand since I have a custom Rom?
Click to expand...
Click to collapse
For unlocked bootloader there is only one main benefit. You can flash any custom kernel directly. On locked bootloader you can also use custom kernel, but it uses "bypass" method - once stock kernel is loaded, special init script gives the control to custom kernel and then custom kernel is loaded. This is 100% safe for noobs and also devs (I was doing some kernelt tweaks, thats why I am on locked - if I do unloadable kernel and flash it on unlocked device... It will be bricked ). But it takes about 2x time to load the system on reboot, because you need to load two kernels instead just one. If you unlock your bootloader, you can overwrite stock kernel with custom one. And when device it powered on, custom kernel is loaded directly and loads faster then by "bypass" method. Another "benefit" is that all of CyanogenMod ROMs requires unlocked bootloader
Unlocked bootloader doesnt affect your "brand", it wont remove it. As wrote before, you need some service which offers unlocking codes or I saw saome tutorials on youtube (give a search ).
But think this is a little nonsense if you want to use your phone as PDA. "Branding" affects only gsm network and 3G data, so you cant use these features without SIM.

Thanks for the info on the locked/unlocked bl.
Now for another question. Let's say I install a Rom and kernel combo that aren't compatible, you said it'll brick. Will that be a hard/permanent brick or could I just use the pc companion and repair it.

wikdNoob said:
Thanks for the info on the locked/unlocked bl.
Now for another question. Let's say I install a Rom and kernel combo that aren't compatible, you said it'll brick. Will that be a hard/permanent brick or could I just use the pc companion and repair it.
Click to expand...
Click to collapse
On locked bl you can everytime use Flashtool or PC Companion to reapir your phone.
On unlocked mostly too. BUT, as told you. Only if you flash loader or kernel badly (bad cable, unexpected power shutdown etc.) you cant repair your phone with any software. Or, to be perfectionist You can unbrick it, using the "JTAG" connector with some "JIG" box. These hardware are hard to buy, its highly specialized devices and costs about 200€ or even more... With these tools you can unbrick any device everytime, even with damaged system ROM, or unloadable kernel. It will simply overwrite the whole NAND adress by adress, byte by byte with standart system image.
You can also use some high-level services which are equipped with this hw and could do it for you. But its also expensive.BTW. thats why I am thinking about to buy JIG box perosnally

Related

unlocked bootloader and now no radio, quick question bout unlocker

few questions about using the unlocker, whilst using the qsd8250 _semc and qsd8250_setool2,
does the phone have to be in flash mode or just connected to pc via usb with usb debugging enabled??
also im gettin adb server is out of date killing...
*daemon started successfully*
getting that every second line or so, is that normal, also it completes the process up until the part where it reboots the phone, then on the pc it saying getting root rights and nothing happens from there???
any help greatly appreciated
follow the unlock instructions fully, if it worked you should lose the "sony" test that happens just after you power on. If not, look for the BL tool in dev section, this will make life easier.
And close flashtool when you do.
[email protected] said:
follow the unlock instructions fully, if it worked you should lose the "sony" test that happens just after you power on. If not, look for the BL tool in dev section, this will make life easier.
Click to expand...
Click to collapse
i was told the sony ericsson logo would only dissappear if i flashed a new ernel, so i did, now i have no signal, and ive tried to reset through seus done everything i can think of
[email protected] said:
i was told the sony ericsson logo would only dissappear if i flashed a new ernel, so i did, now i have no signal, and ive tried to reset through seus done everything i can think of
Click to expand...
Click to collapse
Did you unlock your phone by chance? A in sim unlock to use it on another network? If you did, then you will lose radio signal if it wasn't done with SETOOL.
Dark Nightmare said:
Did you unlock your phone by chance? A in sim unlock to use it on another network? If you did, then you will lose radio signal if it wasn't done with SETOOL.
Click to expand...
Click to collapse
i ran the test to mae sure i had semc certificate, which i did, so i proceeded with unlock
[email protected] said:
i ran the test to mae sure i had semc certificate, which i did, so i proceeded with unlock
Click to expand...
Click to collapse
After unlocking, you need to flash DoomLord's special custom kernel or sony's very own via flashtool. Could be that or simply flash backs stock and retry unlocking. Possibly failed.
well ive managed to get radio working again, had to go bac to 2.1, then a custom 2.2 rom so i could crash system server, then unlock bootloader again, so all is working now, but now i cant root for some reason
mods please close this thread now problem is solved

[Q] strange brick after unsimlock, any solution to fully reinstall stock rom?

Hello guys,
after looking here a lot for improving my x10 (successfully, I love fxp ), I have my first problem, and it is a strange one.
I live in France, and a new carrier made very cool prices, so I decided to change carrier. But my previous carrier provider made its possible to not unsimlock my x10, so, when I went in holidays in Tunisia, I went to a shop where they are known to unlock phones, and they unsimlocked it, but they put an official 2.1 rom, but I couldn't go from cyanogen to stock 2.1... So I decided to install fxp.
I rooted the phone with flashtool, and tried to flash the phone, but it was stuck on se logo, so I used pc companion to install stock gingerbread, it installed. But when I power it on, it's not 2.3, it's still 2.1 ! I don't know what these tunisian did, but they ****ed up my phone T_T
when I start it with my sim, I can enter my pin code, and I only have the blue wallpaper of 2.1 and the top bar. I can't access to anything, the three buttons do not work (except when I put the usb cable, I can use the return button to quit the "charge or connect" menu and minimize the bar when it is fullscreen).
When I don't put the sim, I have the configuration menu, but when I press proceed, it says me to insert a sim card and reset, I can't do anything at this state.
Did anyone have the problem ?
celuiquichaussedu48 said:
Hello guys,
after looking here a lot for improving my x10 (successfully, I love fxp ), I have my first problem, and it is a strange one.
I live in France, and a new carrier made very cool prices, so I decided to change carrier. But my previous carrier provider made its possible to not unsimlock my x10, so, when I went in holidays in Tunisia, I went to a shop where they are known to unlock phones, and they unsimlocked it, but they put an official 2.1 rom, but I couldn't go from cyanogen to stock 2.1... So I decided to install fxp.
I rooted the phone with flashtool, and tried to flash the phone, but it was stuck on se logo, so I used pc companion to install stock gingerbread, it installed. But when I power it on, it's not 2.3, it's still 2.1 ! I don't know what these tunisian did, but they ****ed up my phone T_T
when I start it with my sim, I can enter my pin code, and I only have the blue wallpaper of 2.1 and the top bar. I can't access to anything, the three buttons do not work (except when I put the usb cable, I can use the return button to quit the "charge or connect" menu and minimize the bar when it is fullscreen).
When I don't put the sim, I have the configuration menu, but when I press proceed, it says me to insert a sim card and reset, I can't do anything at this state.
Did anyone have the problem ?
Click to expand...
Click to collapse
If those Tunisians know something, they are probably here on xda-developers forum ..
You have a thread for sim unlocking, and I think that there is a way to check if your phone is unlocked properly via s1tool or is it possible to unlock it..Go HERE
Thanks, for the simlock soft.
But how can I make it to boot properly (ie having acces to menus, icons and all)
Well, I tried s1tool, and it says that it is still locked, but I don't understand, I was able before trying the update to call with the new carrier oO
PS : is there a way to root/flash without enabling debugging ?
I do not know if I can post this, but I managed to do here.
Debranding a knife around 1.6 android and use the ITS to upgrade
http://www.portalandroid.org/comunidade/viewtopic.php?f=55&t=5399
celuiquichaussedu48 said:
Well, I tried s1tool, and it says that it is still locked, but I don't understand, I was able before trying the update to call with the new carrier oO
PS : is there a way to root/flash without enabling debugging ?
Click to expand...
Click to collapse
Well, HERE you can find everything you want for unlocking, downgrading, rooting..(a lot of links)..
Just take it easy and don't rush..It's a simple process, you just have to understand and follow everything they say..
Cheers
Well, I tried again to backup the stock rom with pc copanion, and it worked, and now it is unsimlocked xD

"No service" after installation of miniCM7 on X10 mini Pro

Hi all,
I installed MiniCm7 on my X10 mini pro using these instructions :
http://forum.xda-developers.com/showthread.php?t=1415026
And for unlock the bootloader these instructions :
http://forum.xda-developers.com/showthread.php?t=1254225
No problems during this steps, when I reboot my phones MiniCM worked perfectly but there was no service and I couldn't connect the phone on the network.
So, I tried to reinstall the stock version of Android with SEUS but the problem is still here....
If somenon knows the origin of this problem, this could really help me!
yes, relock the bootloader
SmG67 said:
yes, relock the bootloader
Click to expand...
Click to collapse
Sorry, the same problem here, but I don't understand why can relocking solve the network issue?
Sent from my Galaxy Nexus using xda premium
krex said:
Sorry, the same problem here, but I don't understand why can relocking solve the network issue?
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
The reason for manufacturers to ship their phones with locked bootloaders in the first place is to guarantee that carriers don't get burdened with users messing up their phones, and allowing the carriers to run their own proprietary software (which they say gives them added value over the competition).
So, in order to allow users to mess with their phones, some very clever people hacked the security-mechanism of the bootloader.
Unfortunately, that hack for the Xperia X-devices is not perfect, and can disable the radio-capability of your phone (resulting in loss of network-access/unrecognised sim-cards) if the simlock-certificate on your phone is non-standard.
If that happens, the only way to hopefully get it back is to relock your bootloader so it looks original again.
(I'm not sure if you read the thread on unlocking the bootloader, but there is good reason for the big warnings in red letters about checking your sim-lock certificate with S1Tool before unlocking, and the risks involved in that)
In short: The cause of network-loss the OP reported, wasn't caused by the software, because even back on stock firmware it still occurred. So the cause must be the other thing he messed with
And repairint your phone with sony-ericsson's software does not relock the bootloader.
SmG67 said:
...
If that happens, the only way to hopefully get it back is to relock your bootloader so it looks original again.
(I'm not sure if you read the thread on unlocking the bootloader, but there is good reason for the big warnings in red letters about checking your sim-lock certificate with S1Tool before unlocking, and the risks involved in that)
Click to expand...
Click to collapse
Yes, I did and it is solved. I reflashed the stock by SEUS and I did unlocking procedure again using msm7227_semc.cmd. Now everything is ok. Thanks.
Sent from my Galaxy Nexus using xda premium
and how the **** did you relock the bootloader????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? i thought seus doesnt relock it...
rly its 1 month ago i dont have service on my x10 mini (no not pro) and THE WHOLE INTERNET is full of IDIOTS asking
IDIOT1:no service, it detects the sim card but no service
IDIOT2:maybe if you put out the sim card and put it in again (WTF HE INSERTS PIN CODE OMG)
IDIOT1:blabllablalbl
IDIOT2:SEUS (AW RLY? no i didnt try it already 100 times no...)
IDIOT3:yes i have the same problem
FOR SOME ")/§%$/&§"%$" REASON EVERYTHING STOPS ALWAYS HERE.... NO SOLUTION ON THE WHOLE INTERNET...
im about to break this Q=)§/&$ phone and i regret flashing CM on it... CM.. the most known ROM for rooted phones? y sure their forum is clean like a virgins underwear. no posts since 1890
realalucard said:
and how the **** did you relock the bootloader????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????? i thought seus doesnt relock it...
rly its 1 month ago i dont have service on my x10 mini (no not pro) and THE WHOLE INTERNET is full of IDIOTS asking
IDIOT1:no service, it detects the sim card but no service
IDIOT2:maybe if you put out the sim card and put it in again (WTF HE INSERTS PIN CODE OMG)
IDIOT1:blabllablalbl
IDIOT2:SEUS (AW RLY? no i didnt try it already 100 times no...)
IDIOT3:yes i have the same problem
FOR SOME ")/§%$/&§"%$" REASON EVERYTHING STOPS ALWAYS HERE.... NO SOLUTION ON THE WHOLE INTERNET...
im about to break this Q=)§/&$ phone and i regret flashing CM on it... CM.. the most known ROM for rooted phones? y sure their forum is clean like a virgins underwear. no posts since 1890
Click to expand...
Click to collapse
You download s1tool and press the RESTORE button...
Ur a god! :d
SmG67 said:
You download s1tool and press the RESTORE button...
Click to expand...
Click to collapse
O M G
DUDE
I
LOVE
YOU !​
i had an old version of s1tool and it didnt even have a "RESTORE" button
finaly after so much time 1 small simple *** answer AND IT WORKED! rly im about to create hundreds of accounts to "thank" you!!!
<3 <3 <3 <3 <3
:good::good::good::good::good:
I sometimes get drops in WiFi and network drops it doesn't say no service though just no signal bars. Any idea what could be causing this?
SmG67 said:
You download s1tool and press the RESTORE button...
Click to expand...
Click to collapse
YOU MADE MY DAY!!!
Had have the same problems like the other and now i am happy!
THANK YOJ SO MUCH!
what if someone have locked bootloader
SmG67 said:
You download s1tool and press the RESTORE button...
Click to expand...
Click to collapse
please reply my cellphone has locked bootloader already as stool shows "NOT RECOGNIZED CERTIFICTE" but i have installed SRoM gingerbread by xrecovery but i have same problem as other user now what should i do please reply

please help with unlocking (i got it as a gift)

I bought an atrix 4g mb860 with the lapdock locked to at&t.. latest android version 2.3.6..
I live in egypt..
first I called at&t asked for the unlock code, they gave it to me.
didnt work the unsuccessful
then i called again to make sure of the code but unfortunately they gave me the same code. they suggested i would call motorola
i called motorola they guided me to make a factory reset but did not solve the problem.
i unlocked the phone root
instal cwm
flashed diff radios
didnt help
flashed back 2.3.4
nothing yet
tried diff radios again
tried CM7.2
nothing worked
finaly i sent it to a repair shop
they said they were unable to unlock it.
now i do not know what to do????
i was thinking maybe doing advanced hacking to the software may help.
or eveeen changing the motherboard.. i thought of going to motorola asking them to replace the motherboard for me...
i want to know where does this ****en lock code is.. it is like a ghost i replaces software and boot loader where is that memory that hold the lock code and make it functionable on every software...
You're trying to sim unlock your phone, right? It's not a bootloader unlocking, i guess...
yes
Yeah, I'm not sure where the SIM lock code is either, but it is definitely not within the bootloader or boot or the ROM area. I think it might not be user-accessible at all. It's not like on Samsungs where you modify a file and that makes it unlocked.
ravilov said:
Yeah, I'm not sure where the SIM lock code is either, but it is definitely not within the bootloader or boot or the ROM area. I think it might not be user-accessible at all. It's not like on Samsungs where you modify a file and that makes it unlocked.
Click to expand...
Click to collapse
I believe this is correct, I doubt it's in user accessible files. I'm no expert but if I had to guess it would be built into the firmware or a separate; small chip for storage that is inaccessible. It is only accessible via kernel probably, so it's very low level. Just a guess.
EDIT:
http://en.wikipedia.org/wiki/SIM_lock#Unlocking_technology Here is a decent read if anyone is interested.
anyyy ideas for solving this problem... other than throwing the device in the recycling bin

SGP321 looses gsm signal

I bought this tablet 2 months ago in our local t-mobile. And everything was fine until 2 weeks ago when it suddenly started loosing gsm signal.
At first i thought it had something to do with me rooting it. So i tried repairing it 2 times but with no luck. After that i tried downgrading to 4.1.2 and that didn't work either.
So basically i can be online (surfing,downloading etc.) for few minutes before it drops gsm signal (no signal icon in statusbar) and after few minutes it comes back and then it drops again...
I'd like to know if it can be fixed without taking it to nearest sony repair service. Did anyone encounter similar problem and manage to fix it?
btw bootloader is locked (unlock allowed: no) so flashin another kernel/ROM is out of the question...
wh15tler said:
I bought this tablet 2 months ago in our local t-mobile. And everything was fine until 2 weeks ago when it suddenly started loosing gsm signal.
At first i thought it had something to do with me rooting it. So i tried repairing it 2 times but with no luck. After that i tried downgrading to 4.1.2 and that didn't work either.
So basically i can be online (surfing,downloading etc.) for few minutes before it drops gsm signal (no signal icon in statusbar) and after few minutes it comes back and then it drops again...
I'd like to know if it can be fixed without taking it to nearest sony repair service. Did anyone encounter similar problem and manage to fix it?
btw bootloader is locked (unlock allowed: no) so flashin another kernel/ROM is out of the question...
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Have you tried factory resting it ? Also you can unlock the boot loader just search xda im sure ive seen a guide somewhere ? i was going to say take it back to Sony as it might be a hardware problem but since you have rooted it your warranty has been voided...
N1NJATH3ORY said:
Have you tried factory resting it ? Also you can unlock the boot loader just search xda im sure ive seen a guide somewhere ? i was going to say take it back to Sony as it might be a hardware problem but since you have rooted it your warranty has been voided...
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Well firmware flashing via SUS repair option usually does that for me.. but yeah, i tried factory reset as well. And about bootloader unlocking i've been searching for a guide ever since i bought it. No such luck... Apparently if it's "bootloader unlock allowed: NO", it's meant to stay that way. At least until someone finds a way around it.
I've got a vague idea about how does rooting work and that tells me if i did a complete wipe and flashed my tablet, how can they detect it?
I mean.. it's a complete reinstall, how are they supposed to know that the tablet was rooted on previous firmware if it currently isn't?
wh15tler said:
Well firmware flashing via SUS repair option usually does that for me.. but yeah, i tried factory reset as well. And about bootloader unlocking i've been searching for a guide ever since i bought it. No such luck... Apparently if it's "bootloader unlock allowed: NO", it's meant to stay that way. At least until someone finds a way around it.
I've got a vague idea about how does rooting work and that tells me if i did a complete wipe and flashed my tablet, how can they detect it?
I mean.. it's a complete reinstall, how are they supposed to know that the tablet was rooted on previous firmware if it currently isn't?
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Well im no pro, but don't they have some kind of binary counter witch tells the manufactures the devices has been rooted ? i know that's how Samsung goes about identifying if the devices has been rooted... But Sony im not too sure, Also your theory does hold ground, if you clean install from the ground up then Sony shouldn't be able to tell, if the device has been rooted, also you do know that Sony have a guide on there website on how to unlock the boot loader ? Here check it out http://developer.sonymobile.com/services/unlock-bootloader/
N1NJATH3ORY said:
Well im no pro, but don't they have some kind of binary counter witch tells the manufactures the devices has been rooted ? i know that's how Samsung goes about identifying if the devices has been rooted... But Sony im not too sure, Also your theory does hold ground, if you clean install from the ground up then Sony shouldn't be able to tell, if the device has been rooted, also you do know that Sony have a guide on there website on how to unlock the boot loader ? Here check it out...
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I know about that website. That's how i unlock every sony i come across that needs unlocking :laugh:
But it also says if the "Bootloader unlock allowed" is NO in service menu, then there is no hope for unlocking the bootloader. At least not officially.. until someone comes with a solution for that..
So i managed to get some extra details on that problem.
Apparently i can't get LTE signal anywhere. And when i get LTE, connection automatically drops.
Could it be that the LTE chip is faulty? Does that mean that i'll probably get another device... because somehow i doubt that theyll try to replace the motherboard

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