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Lg ku9500 cyon

Hi,
I have a LG KU9500 CYON (Currently locked to SK Telecom Korea)
Would appreciate it if someone can point / help me to the following:
1) Unlock so I can it with our local Telco in the Philippines
2) Root
I already tried the following:
1) Locate is IMEI, but all are hidden, already all those *# commands I read in the forum but to no avail.
When inserting another SIM it does not prompt the message the I need an unlocking code.
It's showing this message on the screen after it finishes booting "Check the USIM card is installed. Cell phone function is limited. Outgoing calls are only.
Any help really appreciated . . . I have two of these phones from Korea.

I have LG optimus Z cyon, and I want find official rom 2.2 for it.
Please help me

S4 i337 imei cert/NA need help plz

I got s4 i337 phone issue is that this phone I unlocked with z3x was working properly now phone shows no network doesn't pick network signal when I dial *#06# phone shows original imei i did repaire imei when type *#0011# in service it shows imei cert NA I also did write qcn file but no luck after i flashed it with latest version 4.4.4 nothing work and still the same problem persists. Help me with this issue plz

Use the octoplus you correct this in 10 seconds

Emergency calls only Help!

Hi i hope someone can help. My phone has been working fine for 2 weeks, and today it just cut off the network. There is no network problems in my area and I've tried another sim card the problem is it says emergency calls only and won't connect to a network it just says try again later with multiple sims. However with one sim the Internet works but the cell won't make a call or text? Please advise also non rooted g920f

Quinnaay said:
Hi i hope someone can help. My phone has been working fine for 2 weeks, and today it just cut off the network. There is no network problems in my area and I've tried another sim card the problem is it says emergency calls only and won't connect to a network it just says try again later with multiple sims. However with one sim the Internet works but the cell won't make a call or text? Please advise also non rooted g920f
Click to expand...
Click to collapse
me too its happened to me on 18-July-2015 and my
- non rooted g920f
- IMEI changed to 350000000000004
- simcards not working ( not registered on network )
- i have signal bars without simcard !
- and when i reainstalled rom i found updates about 66mb i dont know because of updates or e have big prob here
any solution plz

Maybe a defective SIM card.

Perhaps a temporary network fault.

Your IMEI is corrupted then you are cut off the network!
If you have EFS (IMEI) partition backup try to restore it , for example by this app and you are done!
If you don't have backup of EFS partition you need to send phone to samusng service. (only samsung can't restore your original IMEI number)
regards!

Correct the phone was blocked and i've returned it to the seller. Ebay sucks.

Quinnaay said:
Correct the phone was blocked and i've returned it to the seller. Ebay sucks.
Click to expand...
Click to collapse
this is my screen now all day
samsungrumors.net/wp-content/uploads/2015/05/s6.jpg
i will return this crap to be fixed
if not i will rob the seller............................. or kill him

Any help ?
My Samsung s6 sometimes picks up my carrier but when i make a call it goes to emergency calls only ? i am sometimes able to send a text but again it says emergency calls only after the text sends. I have tried many other sim cards and the same problem, I have also checked my IMEI and its fine.
Any help here guys ? Thanks

s6 emergency call only
imei ok ... baseband ok .... but mobile is emergency call only ... please give me solution ???????????/////

S6 g920p
Hello i fixed s6 sprint g920p i install 5.1.1 modem.bin
On marshmallow and now no emergency call this is the only solution:laugh::good:

Numan1122 said:
Hello i fixed s6 sprint g920p i install 5.1.1 modem.bin
On marshmallow and now no emergency call this is the only solution:laugh::good:
Click to expand...
Click to collapse
So can you make calls and imei fixed ?

Numan1122 said:
Hello i fixed s6 sprint g920p i install 5.1.1 modem.bin
On marshmallow and now no emergency call this is the only solution:laugh::good:
Click to expand...
Click to collapse
i tested many modem but not worked, do you have another solution??

Is it giving a message when you remove your SIM card from running S6 ? asking for reboot or something like that I can't remember correctly ? If it's not giving the message seems like something wrong with your SIM bay ?

hello please can someone help me with my snmsung s6 I have problem with the network shows emergency calls only

Use z3x or chimera try to reset network or reset efs ..
if u want chimera login then inbox

"Invalid SIM card" issue

Hi, i've a problem with my htc one e8 sprint.
it's unlocked and until two days ago all works good.
Sunday morning i 'found' the message "Invalid SIM card. Contact Customer Care" and the GSM network works only for emergency call.
If i remove the sim the "no sim found" error was raised but when i insert it again the error change in "invalid sim card".
I try the SIM in another phone and it works. I also try another working sim in this phone but the same error is raised.
I try to flash another old backup images via TWRP (android 5 and android 4.4) but the error was the same.
i check the IMEI with imei.info app and it seems to be unlocked.
when i change the network Type in screen "Telephone Info" (reachable via *#*#4636#*#* code in dialer) nothing happens.
now i'm using the ViperOneM8 rom and it works good for 4 months.
any ideas?
may be the radio hardware defective?
thanks for all your help.
have a nice day.

[SOLVED] invalid SIM card
fulrosa said:
Hi, i've a problem with my htc one e8 sprint.
it's unlocked and until two days ago all works good.
Sunday morning i 'found' the message "Invalid SIM card. Contact Customer Care" and the GSM network works only for emergency call.
If i remove the sim the "no sim found" error was raised but when i insert it again the error change in "invalid sim card".
I try the SIM in another phone and it works. I also try another working sim in this phone but the same error is raised.
I try to flash another old backup images via TWRP (android 5 and android 4.4) but the error was the same.
i check the IMEI with imei.info app and it seems to be unlocked.
when i change the network Type in screen "Telephone Info" (reachable via *#*#4636#*#* code in dialer) nothing happens.
now i'm using the ViperOneM8 rom and it works good for 4 months.
any ideas?
may be the radio hardware defective?
thanks for all your help.
have a nice day.
Click to expand...
Click to collapse
hi,
the SIM seems to be locked again. the hardware is OK.
i solve the problem with the following steps:
1) backup current rom via TWRP.
2) reinstall the RUU version 2.32.651.11.
3) Unlock the sim again with the method in the thread named:
Getting SPC Unlocking SIM M9 SPRINT [NV]
found at :
http://forum.xda-developers.com/sprint-one-m9/general/nv-unlock-sim-t3314755
it works with my HTC ONE E8 Sprint!
4) Flash again TWRP 3.0 and supersu via WinDroid 3.1
5) restore previous backup made in step 1
The only mystery is :
Why the SIM locks 'alone in the night' without 'strange' operations like flash kernel or some other apps?
hope this can help someone.
have a nice day.

Samsung Galaxy S10 (SM-G973F) doesn't register to network

I recently bought a used Samsung Galaxy S10 (SM-G973F).
At first glance the phone was in excelent shape. The SIM Card was connecting to the mobile network, and calls, internet connection, etc was OK.
But then, I found out that the phone had been rooted. Probably, by the seller. In pannic, I rushed to unroot flashing the stock Rom.
Here what I did:
1- Forgot to check my precisly CSC code and assumed ZTA (cause I'm from Brazil, and the phone is from carrier "Claro")
2- Downloaded the stock rom using Frija
3- Using Odin 3.14.1 flashed the device.
The previous rooted system was on Android 10 and One UI 2.5. With this new rom went to Android 11 and One UI 3.0.
The problem:
The phone recognizes the SIM Card. But it simply doesn't connect to the network. When I try to make a call it says: " not registered on network"
The phone DO recgonizes the SIM Card. On the SIM Card Manager shows my carrier name (Vivo) and my phone number. Also, the SIM app is showing on the app list.
Things I tried:
Rebooting the phone
Changin the SIM Slot
Testing the SIM on another device to ensure it was working
Checked if the IMEI wasn't missing/undefined. It is not, the IMEI appears to be untouched
Checked if the IMEI had been blacklisted. It's not.
Flashed SEVERAL different stock ROMS with different CSC (ZTO, ZTA, ZVV)
Try to manually select the network. This also throws an error saying "error while searching for network"
I'm really desperate and don't know what to do anymore.

No one have a clue either? :C

Look inside here:
How to Fix 'Not Registered on Network' on Android
Here is how to fix 'Not Registered On Network' error on Android. Mostly error occurs on Samsung phones, but this solution works for all android phones.
www.android-recovery.net

Wow,
This is exactly like my S10 right now.
At first, all is good, the signal was great, all working well, except cant connect to samsung pass and samsung health because it was root.
then i brought to sellular shop service, to flash the phone.
Then, “not registered to network” happened. The signal ok, the phone able to read dual simcard, but “emergency call only” and if i try to search network manually, “error while searching for network”
And the sellular shop service have no idea how to fix after they reflashed and try to fix it for several days.
Have you found any solution to fix your pho?
pls advice…

itupini said:
I recently bought a used Samsung Galaxy S10 (SM-G973F).
At first glance the phone was in excelent shape. The SIM Card was connecting to the mobile network, and calls, internet connection, etc was OK.
But then, I found out that the phone had been rooted. Probably, by the seller. In pannic, I rushed to unroot flashing the stock Rom.
Here what I did:
1- Forgot to check my precisly CSC code and assumed ZTA (cause I'm from Brazil, and the phone is from carrier "Claro")
2- Downloaded the stock rom using Frija
3- Using Odin 3.14.1 flashed the device.
The previous rooted system was on Android 10 and One UI 2.5. With this new rom went to Android 11 and One UI 3.0.
The problem:
The phone recognizes the SIM Card. But it simply doesn't connect to the network. When I try to make a call it says: " not registered on network"
The phone DO recgonizes the SIM Card. On the SIM Card Manager shows my carrier name (Vivo) and my phone number. Also, the SIM app is showing on the app list.
Things I tried:
Rebooting the phone
Changin the SIM Slot
Testing the SIM on another device to ensure it was working
Checked if the IMEI wasn't missing/undefined. It is not, the IMEI appears to be untouched
Checked if the IMEI had been blacklisted. It's not.
Flashed SEVERAL different stock ROMS with different CSC (ZTO, ZTA, ZVV)
Try to manually select the network. This also throws an error saying "error while searching for network"
I'm really desperate and don't know what to do anymore.
Click to expand...
Click to collapse
So, were you able to find a solution for this problem? I also bought a Note 9 N960F/DS recently and found out it was actually a N960N model that was changed to N960F/DS. So I did exactly what you did, I flashed the original stock rom, N960N, but now phone will not connect to network. I also did hard reset, reflash other stock roms, nothing changed. Anybody with insight should please give us some pointers.