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[Q] No sim card - no service after unlocking

Hi all, I think I looked everywhere for similar issue, including xda, but no luck. I got my "new" Sensation yesterday and, obviously, I wanted to have a custom rom as I do on my Desire. So I unlocked the bootloader and flashed both recovery and new rom (yes, the phone is still S-ON because I just couldn't get it to S-OFF, no matter what method I tried there was always an issue and I couldn't complete the procedure. if it's important I can explain in details what I tried/not tried). Right now it sits on CM-10.2 | AOSP 4.3 Jellybean [KANG] with 4EXT recovery. Everythin is fine however the phone is locked to O2 and I'm with T-Mobile. I tried to get the phone to S-OFF in order to remove the simlock myself but as I mentioned, no luck. So I got pissed off and I bought the unlock pin code. I've inserted my T-Mobile card, phone asked for the pin, I've entered it and boom, phone is unlocked. Great, I think to myself... well not really. One, the phone just won't get the signal (and I tried putting it to GSM mode only) and two, every time I reboot it the message to enter network pin come up . So I enter the code again and that's the end of the loop. Tried hard reset after entering the pin code but after a reboot it would still ask for the unlock pin and then won't pick up any signal. I've tried giffgaff sim card and that works straight away (as it works under O2) so it's not the phone issue (well, not the sim card port anyway).
Any ideas/solution/questions a-ny-thing would be greatly appreciated as I'm about to rage quit and give up on it .

bboybtek said:
Hi all, I think I looked everywhere for similar issue, including xda, but no luck. I got my "new" Sensation yesterday and, obviously, I wanted to have a custom rom as I do on my Desire. So I unlocked the bootloader and flashed both recovery and new rom (yes, the phone is still S-ON because I just couldn't get it to S-OFF, no matter what method I tried there was always an issue and I couldn't complete the procedure. if it's important I can explain in details what I tried/not tried). Right now it sits on CM-10.2 | AOSP 4.3 Jellybean [KANG] with 4EXT recovery. Everythin is fine however the phone is locked to O2 and I'm with T-Mobile. I tried to get the phone to S-OFF in order to remove the simlock myself but as I mentioned, no luck. So I got pissed off and I bought the unlock pin code. I've inserted my T-Mobile card, phone asked for the pin, I've entered it and boom, phone is unlocked. Great, I think to myself... well not really. One, the phone just won't get the signal (and I tried putting it to GSM mode only) and two, every time I reboot it the message to enter network pin come up . So I enter the code again and that's the end of the loop. Tried hard reset after entering the pin code but after a reboot it would still ask for the unlock pin and then won't pick up any signal. I've tried giffgaff sim card and that works straight away (as it works under O2) so it's not the phone issue (well, not the sim card port anyway).
Any ideas/solution/questions a-ny-thing would be greatly appreciated as I'm about to rage quit and give up on it .
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Hi,
Could it just be the t-mob sim card?
Is there any chance to get a new one from them?

malybru said:
Hi,
Could it just be the t-mob sim card?
Is there any chance to get a new one from them?
Click to expand...
Click to collapse
Thought that but the card works fine in my Desire. Never had any problems with it. What gets me is that constant message asking for the network pin after rebooting the phone. Surely once the code is entered the phone is unlocked ...
If I can't find any solution by monday I'll visit their shop and ask for a new sim or I'll just move my number to giffgaff >_>

Obviously if anyone has any solutions or ideas feel free to share them and I will be sure to try them. I'd really appreciate it!!
Sorry for double post

Installed wrong firmware, problems with unlocking, and *2767*3855# not working

I recently purchased a samsung galaxy s6, locked to Bell Mobility (my sim is rogers). I bought my unlock code through onemanwireless, but I made a very stupid mistake and followed the instructions for t-mobile phones and installed the factory firmware found here, http://onemanwireless.com/TMobile_Galaxy_S6_Edge_unlock.htm. After I realized my mistake I reinstalled the factory firmware for Bell, which I found on this, http://forum.xda-developers.com/galaxy-s6-edge/general/sm-g925f-s6-firmware-thread-t3078841.
However, the unlock code was still unsuccessful, so I followed the other three solutions found on onemanwireless, http://onemanwireless.com/instructions.php#samsung.
When I dialed *#197328640#, I was in the debugging screen, but I didn't have the eight option for phone control.
When I dialed *2767*3855# and *7465625*638*#, nothing happened.
I've checked the IMEI and it's the correct one for my s6. Also, I have installed root checker basic, and it tells me root access is not prorperly installed on the device. I've already gotten the network code incorrect eight times, so I want to know if I'm limited to a specific number of tries before my phone cannot be unlocked again?
Any help would be very much appreciated.

s6 edge 128gb ? Rogers to Virgin. Issues
hi,
i think i do have the similar situation but got unlocked and found your post on googling my phone solution.
i am having s6 edge 128gb initially from rogers two weeks ago from now. my network is Virgin and all initial attempts failed to unlock and now faces some problems ( hopefully can fix and can help each other)
please tell is your model 128gb?
My name is Samir and from Brampton.
May be you can contact me at [email protected] and we can discuss further as you like and can share more info.
Hope to hear back from you soon.

Get your unlock code from your network.

Mine is a Bell 32gb model and the #7465625*638*# code from dialer worked just fine I punched in my unlock code and I unlocked successfully

(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.
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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,
I have a SM-G930F which I got from a carrier (Smart Telecom) here in the Philippines. It came unlocked on both SIM slots... after flashing the SuperMan-Rom I am unable to use my other SIM (Globe Telecom) on this phone. At first it was asking for a SIM PIN which I don't remember setting and eventually it locked me out asking for a PUK, I contacted my telco for the two PUKs (1 & 2) but neither work. Put the non-working SIM on my old phone and it works.. got the SIM replaced thinking a new one would work but it's still asking for the PUK even from a fresh SIM. Could it be that my phone became "locked" after flashing? Kindly need your help!
Thank you!

Tried flashing stock again?

Phone network locked after flashing through Odin?

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.
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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