Develop Bugs

[Q] Xperia Arc Wont read SIM Cards

Hi there, So the other day I deiced that I was going to unroot my Xperia Arc for some reason. I didn't get a backup of my phone( Which is stupid I know). After I did the unroot my Xperia was a little messed up. It was not reading Sim cards and at one point in time go stuck in flash mode. It now has been Flashed with LT15a_2.3.3, 3.0.1.A.0.145_Rogers.ftf. Then it was updated. and Rooted. It still will not recognize any SIM card. If anyone Can help
Model Number : LT15a
Android Version : 4.0.4
Kernel Version: 2.6.32.9-perf
Build Number: 4.1.B.O.587
If you need anymore info let me know
Thanks

nelsion said:
Hi there, So the other day I deiced that I was going to unroot my Xperia Arc for some reason. I didn't get a backup of my phone( Which is stupid I know). After I did the unroot my Xperia was a little messed up. It was not reading Sim cards and at one point in time go stuck in flash mode. It now has been Flashed with LT15a_2.3.3, 3.0.1.A.0.145_Rogers.ftf. Then it was updated. and Rooted. It still will not recognize any SIM card. If anyone Can help
Model Number : LT15a
Android Version : 4.0.4
Kernel Version: 2.6.32.9-perf
Build Number: 4.1.B.O.587
If you need anymore info let me know
Thanks
Click to expand...
Click to collapse
Find a stock 587 ROM and flash that, how you've flashed a 2.3.3 and ended up with 4.0.4 is a little baffling.

Where to find
Hey man sorry i was wondering if you would know where to get it
thanks

you can find stock .587 here:
http://forum.xda-developers.com/showthread.php?t=1836071
press thanks if it helps

page
hey when i go to that page the 3 links dont work

here:
http://forum.xda-developers.com/showthread.php?t=1836071&page=25
post #244
sorry but I cant paste the mediafire link.. xda dont allow posting of outside links for users with less than 10 posts.
dont forget to hit thanks

Still not reading the SIM
So I flashed the stock rom and still have no signal. Also i was able to test my battery today with another Xperia Arc. Its reads full on the phone that has had nothing done to it but on mine it read at 0% and will not go up

nelsion said:
So I flashed the stock rom and still have no signal. Also i was able to test my battery today with another Xperia Arc. Its reads full on the phone that has had nothing done to it but on mine it read at 0% and will not go up
Click to expand...
Click to collapse
Looks like you've flashed too far back - http://forum.xda-developers.com/showthread.php?t=1312398

Still Not Reading SIM or anyother SIM
Hey so got the Battery working....and the phone is now rooted. The thing is still i am unable to connect to my provider which is Rogers.
thanks

nelsion said:
Hey so got the Battery working....and the phone is now rooted. The thing is still i am unable to connect to my provider which is Rogers.
Click to expand...
Click to collapse
Try downloading the APN Settings. What Baseband are you using?

APN
APN settings are correct. the Baseband 8x55a-AAABQOAZM-203028G-70
thanks man

Baseband
I was wondering what is the proper baseband i should be on.

Still Not Reading SIM or anyother SIM
Hey So no matter what Stock ROM I flash to this phone it will not read any SIM cards. I have contacted cellunlock.net and they were unable to unlock this phone. Can anyone help... this phone is useless with out being able to connect to a Mobile Carrier Network
thanks

nelsion said:
Hey So no matter what Stock ROM I flash to this phone it will not read any SIM cards. I have contacted cellunlock.net and they were unable to unlock this phone. Can anyone help... this phone is useless with out being able to connect to a Mobile Carrier Network
thanks
Click to expand...
Click to collapse
Try to take the sim card out of the arc and then in maybe it works!

thanks
G-martar said:
Try to take the sim card out of the arc and then in maybe it works!
Click to expand...
Click to collapse
Tried that a few times and nothing,

[q] network block after upgrade to 4.3

Hi community, as I stated on the title, im having a little problem here with the current 4.3 upgrade on my Note II.
Thing is I upgraded via Odin to 4.3 version; still, my provider service doesnt have the 4,3 upgrade, its only been released to free from fabric phones in my country.(downloaded from sammobile). Shouldnt have been an issue, but after i made the upgrade, my network got blocked. I ve read a lot of threads concerning this issue but still couldnt find a solution.
A link to possible answers would be super appreciated, or something.
Thnx in advance ! Hope i find a way to solve, have EFS saved in pc.
btw IMEI isnt wrong, its not a generic one.
It says : Service State : out of service
My phone number: Unknown
Rest of data seems fine...
Another thing is I sim unlocked the phone when it was at 4.1 to be able to use Movistar on it (via Galaxy S unlock worked) After upgrade network got locked again and asks for simlock code, tried with unlocker again and this time had no luck.. I dont know if the problem here its only that the sim unlock got locked again after the upgrade or what..EDIT: I cant use any of my chips, all of them throw "not registered..etcetc" msg... However this didnt happen when it was at 4.1
EDIT ONCE MORE: I ve been reading around, and seems there is no current way to unlock sim for all companies for note 2 at 4.3 ? Is this correct ? This is frustrating ._.

sry about the double post, anyone can confirm this last thing to me ? Is it correct there is no current way to unlock sim for all companies at 4.3 stage?

julesarg said:
sry about the double post, anyone can confirm this last thing to me ? Is it correct there is no current way to unlock sim for all companies at 4.3 stage?
Click to expand...
Click to collapse
I have the same problem, and i found 2 ways to do it :
-either buy an unlock code ( about 25$)
-or downgrade ( if it's possible to 4.1.1, and use the classical way ( with samsung Code)
i hope that someone will suggest another way to do it

@julesarg, have you tried the patched kernel and modem from this thread?
http://forum.xda-developers.com/showthread.php?t=2539731
Regards.
Sent from my GT-N7100 using XDA Premium 4 mobile 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.

Lg-m150 ( phoenix 3 )

Hi, I'm Kalius I am making this thread for anything pertaining to upgrading, unlocking, backups, root process, bootloader, custom roms, custom recovery, or general info on the lg-m150

I am telling u abt starting the process of UNLOCKING
Different phones have different
Unlock Code Input Instructions, Try
the following Instructions in Order:
Method #1 Insert a non accepted
simcard, and enter code when
prompted for a code.
OR
Method #2 Go to the dial screen and
press: 2945#*150#
Choose network unlock and enter
unlock code
If Phone says, "Code Accepted" or
"Network Unlock Successful" or "Not
Yet Personalized" your phone is fully
Unlocked.
Chk it end tell me wht happend by these 2 methods also mention ur operater.thn maybe i'll hlp u in what to do nxt.
Don't forget to Press thanks if it helps.it encourages
Sent from my LG Optimus L3 II using XDA Labs

What would the unlock code that is asked for

It is for unlocking ur phn to use any network operator i.e any sim card.some devices like M-150 mostly comes with network boundations.so we need to unlock it to use any desirable sim card
Sent from my LG Optimus L3 II using XDA Labs

I did a factory reset on my lg m150 and now i dont know the google account to get in it...

So make a new Google a/c or recover it using another device and proceed
Sent from my LG Optimus L3 II using XDA Labs

Network Mode issue
In my lg-m150 i cant swich 3g or 4g network its only show 2g network and i cant found anny Network mode to swich in this device .hepl me

a.go to ur dialer
b.open testing menu by dialing 277634#*#
if not work then use this
*#*#4636#*#*
atleast 1 of these definitely work
c.select phone information
d.select gsm,wcdma,lte respectively for 2/3/4G,or try combination.
e.done
remember if u select option with single network others will not work until u change them again.
don't forget to press THANKS.
p.s plz note that these codes will work almost on all lg android not only m-150
Sent from my LG Optimus L3 II
using XDA Labs

So, Kingroot didn't do anything...

George_Jetson said:
So, Kingroot didn't do anything...
Click to expand...
Click to collapse
Ask properly if u want an answer.in which way u want to work with kingroot.be clear for what to ask

Hello ,I tried using the second testing menu for my lg m150 but it gives me a pop up that the application does not work on my device.

Veanneac said:
Hello ,I tried using the second testing menu for my lg m150 but it gives me a pop up that the application does not work on my device.
Click to expand...
Click to collapse
So try the 1st dude

Any news on rooting this phone?

Zai23 said:
Any news on rooting this phone?
Click to expand...
Click to collapse
Have u tried kingroot app.if not install it first and thn try to root with it in fair internet.if not work post again
Don't frget to press thanks if it helps :good:

Hello. Thanks for the thread. I tried using the code but the prompt message is 'phone is personalized'. Please what do I do, kindly help me out.

Andro Novice said:
Have u tried kingroot app.if not install it first and thn try to root with it in fair internet.if not work post again
Don't frget to press thanks if it helps :good:
Click to expand...
Click to collapse
I tried that and it didn't work.

Robgreen123 said:
Hello. Thanks for the thread. I tried using the code but the prompt message is 'phone is personalized'. Please what do I do, kindly help me out.
Click to expand...
Click to collapse
U need an Unlock code now.search for it on google mentioning ur operator and remember u have to pay money for it maybe 10-30 $ or more.
Dnt frget to press thnx
---------- Post added at 08:16 AM ---------- Previous post was at 08:13 AM ----------
[/COLOR]
Zai23 said:
I tried that and it didn't work.
Click to expand...
Click to collapse
Do u installed purify with it ?? it can be installed inside the settings of app.after that retry the rooting process.Also tell me what is the error being shown while u r trying.If not work try atleast 3-4 previous versions of kingroot.otherwise u hv to find other methods of rooting

If you are trying to unlock it, I believe firmware M15020e or M15020d can be unlocked for like 2.00 (via ebay)
the newer firmwares L, M etc.. cannot.
Your firmware will be listed on the box or in settings/about phone info
If you have the newer firmware, you could possibly "downgrade" to the m15020 d or e version.

Downgrade new LG-M150 phones
wogeboy said:
If you are trying to unlock it, I believe firmware M15020e or M15020d can be unlocked for like 2.00 (via ebay)
the newer firmwares L, M etc.. cannot.
Your firmware will be listed on the box or in settings/about phone info
If you have the newer firmware, you could possibly "downgrade" to the m15020 d or e version.
Click to expand...
Click to collapse
By now downgrade is the best solution to unlock this device with M15020L/M/N firmware. If someone with the older firmware (E,D) that actually can be unlocked, pls submit it so we can downgrade, even when we'll still need a method to do so, cause there's no LGUP DLL for this model yet.

Secret dialer code for built-in debug menu *#*#1472365#*#*

Need Android Pie firmware details for Unlocked T-Mobile Samsung S9

Hi All,
I have Samsung S9 Unlocked T-mobile from US and currently in India. Currently i have Oreo Version.
As all know, it doesnt have VOLTE option enabled which is needed for my sim network for voice calls to go through.
Somewhere i read Pie update will have VOLTE option and hence i am trying to update to Pie update.
I downloaded G960USQS6CSGB firmware for T-mobile, but before upating firmware using Odin, i got doubt if it will stick to T Mobile after update. This will make my phone not usable in India.
I tried to check online, but couldnt get direct answer and hence posting in new thread.
Can someone help clarify if it will lock the mobile to T-Mobile or will the phone be still in unlocked state?
Also i see two CSC files in the firmware folder. CSC and HOME_CSC. Which one to use?
If I should update with some other firmware for being unlocked and yet to get PIE update, please point to required firmware name or links.
Also will updating to PIE update will have VOLTE option ? Kindly confirm.
Thanks in Advance.

abalanag said:
Hi All,
I have Samsung S9 Unlocked T-mobile from US and currently in India. Currently i have Oreo Version.
As all know, it doesnt have VOLTE option enabled which is needed for my sim network for voice calls to go through.
Somewhere i read Pie update will have VOLTE option and hence i am trying to update to Pie update.
I downloaded G960USQS6CSGB firmware for T-mobile, but before upating firmware using Odin, i got doubt if it will stick to T Mobile after update. This will make my phone not usable in India.
I tried to check online, but couldnt get direct answer and hence posting in new thread.
Can someone help clarify if it will lock the mobile to T-Mobile or will the phone be still in unlocked state?
Also i see two CSC files in the firmware folder. CSC and HOME_CSC. Which one to use?
If I should update with some other firmware for being unlocked and yet to get PIE update, please point to required firmware name or links.
Also will updating to PIE update will have VOLTE option ? Kindly confirm.
Thanks in Advance.
Click to expand...
Click to collapse
csc will factory reset your phone, home_csc wont
volte wasnt removed from pie, so that shouldnt be an issue
the firmware version you posted has the 6th bootloader revision, im betting here is a 7th available for your phone, but the 6th version should be fine as well
as far as the unlocked state of the phone goes, it shouldnt re-lock, but im paranoid lol. Have you looked into the U1 versions of the phones firmware? Theyre inherently unlocked firmwares and dont have any of that irritating bloatware **** in them

youdoofus said:
csc will factory reset your phone, home_csc wont
volte wasnt removed from pie, so that shouldnt be an issue
the firmware version you posted has the 6th bootloader revision, im betting here is a 7th available for your phone, but the 6th version should be fine as well
as far as the unlocked state of the phone goes, it shouldnt re-lock, but im paranoid lol. Have you looked into the U1 versions of the phones firmware? Theyre inherently unlocked firmwares and dont have any of that irritating bloatware **** in them
Click to expand...
Click to collapse
Thanks youdoofus the inputs. Say by chance if it gets locked, is there a way to unlock the phone again from here?
may be then i will try to load U1 versions otherwise. Thanks alot.

abalanag said:
Thanks youdoofus the inputs. Say by chance if it gets locked, is there a way to unlock the phone again from here?
may be then i will try to load U1 versions otherwise. Thanks alot.
Click to expand...
Click to collapse
if it has no financial obligation to any carrier and the phone locks to that carrier, then the carrier it locked to would be required to release it. I cant imagine how it would lock to t-mob tho

Factory unlocked phones stay unlocked, no matter what firmware you flash.
Carrier locked phones that were properly unlocked by the carrier (they provide the code to SIM unlock the phone) will stay unlocked, again, no matter what firmware you flash to it - as long as it's compatible. Flashing the wrong firmware may just brick the phone. But, at least it's still SIM unlocked.
Phones that had some kind of software hack installed to trick the phone into thinking it's unlocked will lose the unlock status when you flash a firmware that also wipes the phone. Then it will come back as carrier locked again, because the hack is gone.
That last case is the only case I know of that will "re-lock" a phone. I've never heard of a carrier unlocked phone spontaneously re-locking under any circumstance.

Hi,
Thanks for the details. I tried to flash G960U1UES6CSG4_G960U1OYM6CSG4_XAA firmware. But while loading AP file in ODIN, it gave some error. Couldnt understand what is the error as its in chinese.
Then i loaded G960USQS6CSGB_G960UOYN6CSGB_TMB firmware which i downloaded previously. This got loaded in ODIN without any issues. And i am able to flash to phone. On rebooting, saw that phone moved to Pie version.
But i couldnt find VOLTE option (Enhanced calling) option. Does anyone know which version will enable that option?
Or anyother way to enable that please.
Thanks in advance.

joeldf said:
Factory unlocked phones stay unlocked, no matter what firmware you flash.
Carrier locked phones that were properly unlocked by the carrier (they provide the code to SIM unlock the phone) will stay unlocked, again, no matter what firmware you flash to it - as long as it's compatible. Flashing the wrong firmware may just brick the phone. But, at least it's still SIM unlocked.
Phones that had some kind of software hack installed to trick the phone into thinking it's unlocked will lose the unlock status when you flash a firmware that also wipes the phone. Then it will come back as carrier locked again, because the hack is gone.
That last case is the only case I know of that will "re-lock" a phone. I've never heard of a carrier unlocked phone spontaneously re-locking under any circumstance.
Click to expand...
Click to collapse
another user just posted up in another thread that they had a factory cricket phone that got unlocked, he put an at&t sim in it and it installed at&t apps and locked the phone to at&t FWIW
---------- Post added at 02:42 PM ---------- Previous post was at 02:36 PM ----------
abalanag said:
Hi,
Thanks for the details. I tried to flash G960U1UES6CSG4_G960U1OYM6CSG4_XAA firmware. But while loading AP file in ODIN, it gave some error. Couldnt understand what is the error as its in chinese.
Then i loaded G960USQS6CSGB_G960UOYN6CSGB_TMB firmware which i downloaded previously. This got loaded in ODIN without any issues. And i am able to flash to phone. On rebooting, saw that phone moved to Pie version.
But i couldnt find VOLTE option (Enhanced calling) option. Does anyone know which version will enable that option?
Or anyother way to enable that please.
Thanks in advance.
Click to expand...
Click to collapse
if your Odin error messages are in Chinese, youve obtained a modified version. Itll probably work, but youll get that Chinese stuff whenever it needs to tell you anything. I dont know which versions have volte tbh. Sorry man.

youdoofus said:
another user just posted up in another thread that they had a factory cricket phone that got unlocked, he put an at&t sim in it and it installed at&t apps and locked the phone to at&t FWIW
---------- Post added at 02:42 PM ---------- Previous post was at 02:36 PM ----------
if your Odin error messages are in Chinese, youve obtained a modified version. Itll probably work, but youll get that Chinese stuff whenever it needs to tell you anything. I dont know which versions have volte tbh. Sorry man.
Click to expand...
Click to collapse
Thanks youdoofus for trying to help. For me atleast it didnt get locked when i moved to Pie. I will try other methods.
I will try to root the phone for enabling volte, but the methods that i tried didnt work.

youdoofus said:
another user just posted up in another thread that they had a factory cricket phone that got unlocked, he put an at&t sim in it and it installed at&t apps and locked the phone to at&t FWIW
Click to expand...
Click to collapse
That's just weird.

joeldf said:
That's just weird.
Click to expand...
Click to collapse
yeah, sort of. The CSC's on these things are weird. Im starting to believe that these new versions of android are just like windows ISOs where they have all the versions compressed into one file and it uses a directory file to tell the firmware which version to install. Im sure a code writing dev can confirm or deny this thought, but at this point its merely a weak theory

2019-10-08_21:17:56 Device Info:
MAC : 44:91:60:6F8:11
MACs : 44:91:60:6F8:11 46:91:60:6F8:11
Root : false
VirtualMachine : false
build.characteristics : nosdcard
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build.host : SWDH7918
build.id : PPR1.180610.011
build.incremental : G960USQS6CSGB
build.release : 9
build.sdk : 28
build.tags : release-keys
build.time : 1563280950
build.type : user
build.user : dpi
clientidbase : android-samsung-ss android-tmus-us-revc
cpu.abi : arm64-v8a
cpu.abilist : arm64-v8a,armeabi-v7a,armeabi
cpu.abilist32 : armeabi-v7a,armeabi
cpu.abilist64 : arm64-v8a
hardware : qcom
iso-country : us
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product.board : sdm845
product.brand : samsung
product.device : starqltesq
product.manufacturer : samsung
product.model : SM-G960U
product.name : starqltesq
Time Used: 2.00 s