Phone network locked after flashing through Odin? - Samsung Galaxy S8+ Questions & Answers

Hi,
I have a Samsung S8+ which I bought unlocked to any network, I have used it on EE and Vodafone. I had rooted the phone, flashed different roms etc no problem. After I got my new phone, I tried to get the sim out of the S8+ and the tray was stuck, left with no choice I forced it out but this broke the sim card reader as it wouldn't read any SD or Sim.
I flashed a stock 9.0 pie UK version (Unlocked) to the phone through Odin and got the sim card tray replaced, now it reads SD cards and my sim but it says network locked and is asking for the NUC code, the phone was unlocked before and now it isnt. I've contacted Vodafone for a NUC code but the code isn't working (says incorrect code), I've tried flashing stock 8.0 too, also not working and still asking for the NUC. Strangely, it isn't working on either EE or Vodafone Sims now.
Could the sim card tray being replaced effect this? Is it the software flashed through Odin?
Any help will be appriciated please.
Thanks
Sam

Is it possible not only the SIM tray but the whole motherboard was replaced? It would make perfect sense then. Check whether your IMEI and S/N match what was on the box the phone came in.

kernel.killer said:
Is it possible not only the SIM tray but the whole motherboard was replaced? It would make perfect sense then. Check whether your IMEI and S/N match what was on the box the phone came in.
Click to expand...
Click to collapse
If he sent it to samsung it may not be. I got 2 replacements from samsung identical IMEI as my orig. And they messed one up and sent back my original as well. Once so i had and technicly still have as i sold to my neighbor legit s8s cloned same imei from samsung direct

Thanks for the replies. Same IMEI which is strange, I've tried all UK sims and it's still locked. It says sim locked enter unlock code now but on every sim

xSam-H said:
Thanks for the replies. Same IMEI which is strange, I've tried all UK sims and it's still locked. It says sim locked enter unlock code now but on every sim
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Click to collapse
It is strange normally sim unlocks are not undone by odin flashing. Sim unlocks lie in a non flashed partition

Related

Network locked sim card inserted

My sister presented me this galaxy s6 phone from malaysia. I am from India when i inserted india sim card. I got the message network locked sim card inserted. I came to know from the internet all samsung phones are network locked, for that I have to make incomming or outgoing call for 5 mins. I inserted malaysia sim and (from india) made 3mins of call to malaysia and 2+ mins of call to my mobile in india. Inspite of this my mobile is not unlocked it is still locked. Please help me.
If i flash stock firmware from india will my s6 be automatically unlocked ??, without any side effects.
In internet I saw there are many sites which says they can provide unlock code but their charge is very high almost 50 USD. I have already spent almost 100RM for roaming calls. Please help in unlocking my phone.
Inserting the malaysia sim card will not work as the call has to be made through the network of the region the phone was bought. Using the malaysian sim in india is not enough as the call is still going through the indian phone network.
I already made a 3 mins call to Malaysia . Will it unlock if I ask to someone from Malaysia to make another 2 mins of call to me.
Only way to unlock a network locked S6 is to get the unlock code from your network or buy it online from reputable unlockers. Flashing ROMs will no remove the lock.
Suggest some reputable unlockers
roydok said:
Only way to unlock a network locked S6 is to get the unlock code from your network or buy it online from reputable unlockers. Flashing ROMs will no remove the lock.
Click to expand...
Click to collapse
Can you please suggest me some reputable unlockers. After unlocking will i be able to original stock firmware / custom roms without getting unclocked.
reputable cheap unlockers
srahulmca said:
Can you please suggest me some reputable unlockers. After unlocking will i be able to original stock firmware / custom roms without getting unclocked.
Click to expand...
Click to collapse
reputable cheap unlockers
The problem you may have here is unlocking services unlock the phone from a specific carrier. The region lock is not the same as the carrier lock that these companies provide a service for. A quick look on google brings up no results for region unlocking. At the minute your only course of action is take the phone to a samsung repair centre and hope they will remove the region lock for you.
I took my phone to local mobile service center and he unlocked my phone (dont know how he did) and my phone is now rooted. Now my question is, is the unclock permanent and can i flash stock firmware safely without getting locked again.
Please confirm
srahulmca said:
I took my phone to local mobile service center and he unlocked my phone (dont know how he did) and my phone is now rooted. Now my question is, is the unclock permanent and can i flash stock firmware safely without getting locked again.
Click to expand...
Click to collapse
Can someone please confirm this.
Sim Unlock is needed once in a lifetime and it`s irreversible. Anyway I don't understand why was needed to root your phone for sim unlock. Normally you can reset, flash anything now and your phone will be sim unlocked.
What do you mean by reset ? we cannot remove the lock by flashing a new ROM.
why dose it come up restart phone when i swich sim cards on my unlocked galaxy s6 eage and dose this lose all othe data and save picuters and contects
Please i do also have S6 brought from USA to Ghana and when i tried put on a sim, it said Network locked sim. please what should i do?

(SOLVED) Sim not detecting/Insert a valid sim card on your phone

Hello there, I am not new to xda but this is my first post. I've a question regarding my M8 Verizon bought from ebay. Its been a year now and everything was going well since one day I accidentally did s-on and locked the bootloader while using HTC ONE M8 Toolkit by Squabbi.
Then I again s-off'd my device using Sunshine method (firewater didn't worked as it was discontinued). So I paid 1600₹ to get my device s-off'd and unlocked bootloader. But since then I am unable to use any Indian sim whether airtel, idea or any other. I tried many possible solutions found on the internet as well as here on xda. Like I flashed firmware (old and new both), flashed radio firmware files old and new both but no luck. Either I restored my device to stock Verizon rom using the RUU provided by Dottat. But I couldn't find any luck and I'm still unable to use my sim card. My phone is unable to detect it. My device doesn't even pops up any notification for sim card now. Please Help. :crying:
Is there any solution for this? I'm in a need of this.
Waiting to be helped as soon as possible.
Hi,
I do not know if same pb...
Phone is working fine on Lollipop on european Gsm/LTE (sometimes going back to cdma by itself, a bit boring), and is asking for SIM pin number.
When going to marshmallow (by RUU or by OTA) the sim is deribed to be absent or invadid, and It did ask for the SIM pin number
I did not find any clue...
regards
After a lot of tries, it finally worked. And the sim is now detected. Thanks to Me.
shad.man92 said:
After a lot of tries, it finally worked. And the sim is now detected. Thanks to Me.
Click to expand...
Click to collapse
Hello! I have same problem. I can`t use my sim card. Can you tell me how did you solve this problem?
User 1 said:
Hello! I have same problem. I can`t use my sim card. Can you tell me how did you solve this problem?
Click to expand...
Click to collapse
I disassembled my M8, then replaced the sim reader inside the phone, then removed and reinserted the flex on the board. Then turned on the phone, and edited the system file located inside root/system/customize/ACC/default.xml to change the value of sku_id and region located at last in the file default.xml
You can search on google for SKU LIST XDA. It will show you the list for all regions.

SM-G930F became locked after installing custom ROM

*** UPDATE: it's a SM-G930FD, rather.
Hello,
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Thank you!
Tried flashing stock again?

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I have a Japanese S8+ (SC03J) that was sim-unlocked a bit more than a year ago. I used it on stock firmware, then rooted it, and kept using it.
I was going to update it to 8.0 through this custom firmware :
https://forum.xda-developers.com/ga...g9550-g9500-phoenixo9-crf2-everytime-t3819774
After successfuly flashing it, when I put my sim card back, he automatically asks me for a network unlock code, thing I never been asked before.
I came back to stock firmware but it is still not reconizing my SIM card, and asking me for an un lock network code.
The SIM works completely fine on my other japanese phone.
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I do not think it is a hardware problem as I didn't do anything unusual.
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