Database Info

[att tilt] i tried every rom with every radio but........

i still get no service
if i do get service then i have it for about 2-3 minutes then its gone =[
please help me out
AIM: mo money xx

Definitely sounds like a hardware issue. Maybe you should flash back to your stock rom/spl/radio and see about getting a warranty replacement.

mobidari1234 said:
i still get no service
if i do get service then i have it for about 2-3 minutes then its gone =[
please help me out
AIM: mo money xx
Click to expand...
Click to collapse
Hi,.
Have you try to contact your Operator service??
it must be related there,.
Call / contact your provider service, or try to buy a new operator (SIM Card),.
if the service say that its okay, and you still cant figured it out although using new SIM Card,. Then it related to your device,.
and if it is fixed by using new sim card, then its not your phone related,.
I hope your device going well,.
Gud luck,.
Regards
Garmin

mobidari1234 said:
i still get no service
if i do get service then i have it for about 2-3 minutes then its gone =[
please help me out
AIM: mo money xx
Click to expand...
Click to collapse
Had an issue like that, it was actually the SIM card. Replaced and all was fine.

mobidari1234 said:
i still get no service
if i do get service then i have it for about 2-3 minutes then its gone =[
please help me out
AIM: mo money xx
Click to expand...
Click to collapse
Pop out the sim card and reincert it back in your phone, if you have a friend with same service swap sim cards for a moment and see if yours works in his phone and his in yours. And last but not least I got'a ask Did you Hard SPL before you flashed?
Ed...

Dup response! Mod! please remove?

edbutler said:
Dup response! Mod! please remove?
Click to expand...
Click to collapse
i went and got a new sim card and i have the same problem
and yes i did hardspl before flashing
if you guys have any other solutions plz help me

skatdawg said:
Definitely sounds like a hardware issue. Maybe you should flash back to your stock rom/spl/radio and see about getting a warranty replacement.
Click to expand...
Click to collapse
+1 i agree with the hardware issue. if you have troubleshot and nothing seems to work, maybe bad contact leads on sim slot or something

Did you Try your sim!
Card in another phone from the same carier? How did you get a new sim card so fast AT&T sends one in the mail and that takes about 3 days to get it. So since your first post was yesterday you must have a great service provider. Anyway need to know weather or not your sim card is working or not that can be checked easy just install it in someones phone that belongs to the same carier as you. If you can confirm that the card is good then you have a bad phone and you need to put it back into original condition SPL and Rom & Radio. then call them up and get a warranty exchange. I am with AT&T mine went bad and I called them they sent me a new exchange which is a refurb I got it in 3 days if they offer express shipping for $8.00 extra decline it I have never waited longer then 3 days for a swap or new order. Then just put yours in the box peel and stick the return label and send the bad one back. They take a credit card and put it on hold until they get their bad unit back. But there is no charge once everything is received. That is how AT&T does it most do something like this. Flashing your Rom is safe if done correctly, if you do not follow instructions then **** happends! it sounds like your phone just took a crap on you in the middle of a flash which if you did it correctly had nothing to do with the flash you just had bad hardware.

Did you Try your sim!
Try the orignial sim before the new one, also if you went into a store then your taking a chance a service tech might note in your account that your rom has changed. So before you take it back to the store make sure you flash it back to normal. Hope this helps! Ed...

No Signal Problem/Unlocked phone

Hi !
I need urgent help , i bought SONY ERRICSON EXPERIA PRO MK16I FROM EBAY.
The phone is imported and i am from india , the dealer says that the phone is unlocked.
Ecert thing works fine but there is a huge network problem.
Phone is gsm and only 2-3 network providers like vodafone and reliance work but the signals are so poor that the call may drop at any second, while using internet signals drops everytime, even on the top floor the signals are poor , just one or two bars some times the bars are full the again the bars are no more.
The phone had android 2.3 operating system which was upgraded by the dealer to 4.0
i used upgraded from sony web side and from software nothing work
it's not working. It's been like this for around 1 months now, and I really want it to work! And i've tried reseting, updating the ROM, changing SIM card and put in a totally new SIM card and it's work but signals:crying: drop every time, oh i am so upset.... SIGNAL DROPS EVERY TIME !!
dealer refused to return the phone , i bought the phone from the dealer so it's under seller warranty
the sony service center in india is so poor that they will steal my mobile parts if i will take their help.
i have shown the phone to some local mobile repair experts and some says that network ic is the problem , emei is the problem , some say the phone might not unlocked , some say that do not have the files to solves the problem because the phone is imported.
Is there anyone who can tell me what is the problem with this cellphone
I have tried up every possible way and i am not financially strong to buy a new phone and i don't know who will buy this cellphone if i am ready to sell it ..
Regards

vivekaroraus said:
Hi !
I need urgent help , i bought SONY ERRICSON EXPERIA PRO MK16I FROM EBAY.
The phone is imported and i am from india , the dealer says that the phone is unlocked.
Ecert thing works fine but there is a huge network problem.
Phone is gsm and only 2-3 network providers like vodafone and reliance work but the signals are so poor that the call may drop at any second, while using internet signals drops everytime, even on the top floor the signals are poor , just one or two bars some times the bars are full the again the bars are no more.
The phone had android 2.3 operating system which was upgraded by the dealer to 4.0
i used upgraded from sony web side and from software nothing work
it's not working. It's been like this for around 1 months now, and I really want it to work! And i've tried reseting, updating the ROM, changing SIM card and put in a totally new SIM card and it's work but signals:crying: drop every time, oh i am so upset.... SIGNAL DROPS EVERY TIME !!
dealer refused to return the phone , i bought the phone from the dealer so it's under seller warranty
the sony service center in india is so poor that they will steal my mobile parts if i will take their help.
i have shown the phone to some local mobile repair experts and some says that network ic is the problem , emei is the problem , some say the phone might not unlocked , some say that do not have the files to solves the problem because the phone is imported.
Is there anyone who can tell me what is the problem with this cellphone
I have tried up every possible way and i am not financially strong to buy a new phone and i don't know who will buy this cellphone if i am ready to sell it ..
Regards
Click to expand...
Click to collapse
Maybe give this a shot:
http://forum.xda-developers.com/showthread.php?t=1684009

AndroidDevGru said:
Maybe give this a shot:
http://forum.xda-developers.com/showthread.php?t=1684009
Click to expand...
Click to collapse
Thank you very much but i am not getting this solution in the link..i know nothing about flashing , rooting loading and in my city i and 100% sure not a single person can help me..
Can you please explain the solution in the link in a very simple way..please help me else my all hard earned money will go in vain..i am not able to buy a new phone ..i am too much upset.please help
Regards

vivekaroraus said:
Thank you very much but i am not getting this solution in the link..i know nothing about flashing , rooting loading and in my city i and 100% sure not a single person can help me..
Can you please explain the solution in the link in a very simple way..please help me else my all hard earned money will go in vain..i am not able to buy a new phone ..i am too much upset.please help
Regards
Click to expand...
Click to collapse
Sorry, but I don't have this phone.
We all where noobs at some point and started with nothing.
The link provides a step by step guide, so trowing your arms up and saying i know nothing - help me wont cut it here am afraid.
Get your **** together and learn how to follow instructions.
If you run into problems, try again, only if all else fails come back and ask for help.

This sounds like a firmware issue. Did you look around for the proper firmwares to flash.. remember don't flash firmwares with an unlocked bootloader. Flash before , then unlock then root. Flashing firmwares on a unlocked bootloader bricked our Sony play. I have since relocked the bootloader and flashed over the UK firmwares. Now we get 3g. Before this we were stuck on 2g (edge). Be careful and good luck
Sent from my HTC_Amaze_4G

S6 (G920F International Version) No Network Selection/NO SIM DETECTED

Hello,
A friend of mine has a new S6 which is unlocked to work with any network/sim. The phone was working perfectly for a few months.
Now for some reason, it gives the message that no sim detected. Signal bars show up. But no connectivity.
The option in settings Select Network Operator is gone, and no longer there.
I have tried re-flashing stock 5.1.1 ROM and still the same problem. Tried flashing previous 2 modems and got the same error, so flashed back to current one.
Current Baseband: G920FXXU3QOKN
Kernel Version: 3.10.61-5896496 [email protected]#1
Another thing to note is that the phone shows signal bars perfectly, even though there is the no sim message. Also, on removing and re-inserting the sim, it reads the sim and asks to reboot, after which it comes to the same situation.
Any help would be appreciated.
Thanks,

I have same issue, and would gladly fix it. :/
Link to topic:
http://forum.xda-developers.com/galaxy-s6/help/g920f-network-issues-t3291903

brenner650 said:
I have same issue, and would gladly fix it. :/
Link to topic:
http://forum.xda-developers.com/galaxy-s6/help/g920f-network-issues-t3291903
Click to expand...
Click to collapse
Check to see if your imei is intact still in settings
Hears a link to help http://www.technobezz.com/how-to-fix-galaxy-s6-not-registered-on-network/

xstokerx said:
Check to see if your imei is intact still in settings
Hears a link to help http://www.technobezz.com/how-to-fix-galaxy-s6-not-registered-on-network/
Click to expand...
Click to collapse
IMEI was reset to 350000000006, then some Russian guy fixed it with Z3X box, SIM was able to register, but reception was awfull (lots of missed incoming calls, etc.). then I flashed some more fw and modem to check wheter it would fix dropping signal issues, and then it started not to recognize SIM.
So to sumarize, IMEI (with my EFS, not @tazaga one) is fine in the IMEI info, in SIM info everything is unknown, and mobile networks menu is missing from settings.
I changed SIM for a new one, just to be sure, and is detected only when inserted/removed, then phone wants to restart to enable mobile networks, but after restart, nothing changes.
Serial number was changed, but I corrected it in a file in EFS folder.

brenner650 said:
IMEI was reset to 350000000006, then some Russian guy fixed it with Z3X box, SIM was able to register, but reception was awfull (lots of missed incoming calls, etc.). then I flashed some more fw and modem to check wheter it would fix dropping signal issues, and then it started not to recognize SIM.
So to sumarize, IMEI (with my EFS, not @tazaga one) in fine in the IMEI info, in SIM info everything is unknown, and mobile networks menu is missing from settings.
I changed SIM for a new one, just to be sure, and is detedted only when inserted/removed, then phone wants to restart to enable mobile networks, but after restart, nothing changes.
Serial number was changed, but I corrected it in a file in EFS folder.
Click to expand...
Click to collapse
Ya by the sounds of it something is still funky in your efs folder

As far as my problem is concerned, the IMEI and the SERIAL number both match the inside and outside. So its not that.
Any other suggestions as to what it could be? Or how to fix?

Flash stock with smart switch but before that make efs backup ( in case things goes down )

Already tried smart switch and also Odin to flash stock. Neither worked.
Would flashing an EFS backup from another phone with the exact same model work?

KMAT said:
Already tried smart switch and also Odin to flash stock. Neither worked.
Would flashing an EFS backup from another phone with the exact same model work?
Click to expand...
Click to collapse
well I tried to flash @tazaga efs, IMEI gets unknown right after that, but managed to boot up without custom kernel after Smart Switch initialization.
Beside that nothing changed, still no SIM and no mobile networks menu, and sadly couple hours later, phone went to a boot loop.
I took it to some 3dr party repair shop, without restoring original efs and bootable fw/kernel, they said they cannot repair it, but will give phone to some "software specialist" who may be (I seriously doubt it, according to my prevoius experience with 3rd party sw specialists (last time it took me half a day to reach the state phone was in when I deliverd it to them)) able to fix it with a 50-50% chance of fixing it.

brenner650 said:
well I tried to flash @tazaga efs, IMEI gets unknown right after that, but managed to boot up without custom kernel after Smart Switch initialization.
Beside that nothing changed, still no SIM and no mobile networks menu, and sadly couple hours later, phone went to a boot loop.
I took it to some 3dr party repair shop, without restoring original efs and bootable fw/kernel, they said they cannot repair it, but will give phone to some "software specialist" who may be (I seriously doubt it, according to my prevoius experience with 3rd party sw specialists (last time it took me half a day to reach the state phone was in when I deliverd it to them)) able to fix it with a 50-50% chance of fixing it.
Click to expand...
Click to collapse
Dude it it can be fixed its just you need octoplus box or z3x box

tazaga said:
Dude it it can be fixed its just you need octoplus box or z3x box
Click to expand...
Click to collapse
I understand that, but I kinda doubt that no SIM issue is somehow tied to IMEI
Because with my efs backup (which was made after Z3X repair) IMEI is fine, but still no SIM.
I was kinda hoping that it could be something else in the EFS folder that made SIM undetectable, but even with your efs backup (thank you once again for it) SIM is not detected, so I guess that no SIM issue is tied to something else that is corrupted, or accidentally switched off.
I just dont know what could it be, because I was messing with service mode and codes unknown to me to try fix poor reception, so god knows what I did to put the phone in state in which is now.
Perhaps I am just trying to provide every information possible, and exchange it with others who have same issue, or more experience than me, so we can together figure out what has caused this and how to fix it, and help others who will have same issue in the future (and obviously I am not the only one with such issue).
And as I pointed out 3rd party repair shops didnt proove quite usefull (perhaps their services are just flashing/rooting/unlocking, but I can do that by myself without paying someone else to do it)
We will see next week, what will guys from repair shop say, but I am not very optimistic about that.
If nothing else I can still give some money to that Russian guy with Z3X, who fixed IMEI in the first place, I guess he won`t mind
And sorry for the OT.

This problem still going on with exact answer..
I also have same issue on customer's phone.
I've tried backup cert and efs then repair efs (on octoplus).
after repairing efs, it changed IMEI to 3500...006 but still no sim card.
Seems like I can't fix even with Octoplus.
Hopefully someone finds way to fix this asap ;(

So apparently EFS and stock firmware has been ruled out. I already tried different modems using Odin.
Anyone have any other ideas? I mean other than the Sim Not Found thing, I can't even see the network selection option in settings, and using *#*#4636#*#* only gives an error that not registered on network.

well @ariza27 made similar fix for S3...
http://forum.xda-developers.com/galaxy-s3/help/solved-siii-network-problem-update-sn-t1918601
I guess there is nothing to do but wait for developers to create something for S6.

If I am understanding that problem correctly, the SIM/Network problem in the S3 came from the SN or IMEI changing due to upgrade or flashing.
This phone has the same SN/IMEI inside and outside. And its not just refusing to register the SIM, the network options have disappeared as well. I had hoped flashing stock would help, but no cigar.
One thing though, would completely erasing the data partition, and wiping the entire firmware, and then installing stock or even another ROM help? Because even when flashing through odin, it preserved the data for some reason.

Can someone send me their EFS backup for G920F on v.5.1.1 Stock with baseband/modem G920FXXU3QOKN?
I don;t know if those things affect EFS or not, just want to be on the safe side. I want to try comparing the backup from my phone and one other and then try and restore using the 2nd one.
As far as the IMEI and SN changing goes, I am looking into how to prevent that in the first place on in the even that it happens to restore it.
Any help is appreciated.

Bump! Anyone?

Your imei number has been blocked/blacklisted because of a reason like lost or stolen phone, reported by previous owner, the only way to fix it is to replace the motherboard of the same model from a supplier on aliexpress website, there price is about $350.00 Australian dollars thats including EMS express postage,you get it around 4 or 5 working days, dont waste your money or time on anything else it won't work, I had same problem, now after new motherboard my galaxy s6 edge is working fine, expensive though.

Any luck with this issue?

wilksy1 said:
Your imei number has been blocked/blacklisted because of a reason like lost or stolen phone, reported by previous owner, the only way to fix it is to replace the motherboard of the same model from a supplier on aliexpress website, there price is about $350.00 Australian dollars thats including EMS express postage,you get it around 4 or 5 working days, dont waste your money or time on anything else it won't work, I had same problem, now after new motherboard my galaxy s6 edge is working fine, expensive though.
Click to expand...
Click to collapse
The phone was purchased new. And Already spoken with both Samsung and Vodaphone regarding this and they say the IMEI and the phone are clear. The phone is in another country from that of purchase, but since there is no country lock or phone lock, this is not the problem.
And no such luck yet.

Phone wont register on network!! Need Help!!

Hello guys!
I love this phone, but i am having problems getting it to function properly here in Sweden. It was originally bought on a contract and simlocked to Tre (carrier). I bought the phone second hand from swedish ebay (much cheaper than brand new) with the intention of unlocking it and using with my carrier (Telenor).
Tre would not unlock the phone for me (have to see out 24 month contract) so i unlocked it myself using the services of unlockscope.com. The process was successful, and the phone no longer asks for a network unlock code when using previously locked sim.
The problems start now.. It just refuses to register on the network! If i switch the phone off, insert sim and start, then i get a brief flash of the carrier name in top left corner (2 seconds), and then it goes back to saying emergency calls only.
I cannot register manually, i have tried hundreds of times, even though the carrier appears in the list. The apn settings are also correct for my carrier.
I have also contacted my carrier and they dont understand the problem. I even had them run a check on the imei to see if it was blocked on their network (possible stolen phone) but it came back negative, no blocking whatsoever!
The weirdest thing is that it works when using my brothers Tele2 sim card! The phone registers in seconds and displays a nice 4g symbol next to the signal indicator! A thing to note is that this Tele2 nano sim fits very nicely in the tray and stays in place, whereas my telenor sim is extremely loose and falls out, though i have tried taping my sim in place with no success.
Can anybody relate to this problem or think of a possible cause? I dont know what to try anymore! I'm thinking that there must be something wrong with the phone, but then why does Tele2 work perfectly??!!
Sorry for the long post! I appreciate any help offered!

vinnibinni said:
Hello guys!
I love this phone, but i am having problems getting it to function properly here in Sweden. It was originally bought on a contract and simlocked to Tre (carrier). I bought the phone second hand from swedish ebay (much cheaper than brand new) with the intention of unlocking it and using with my carrier (Telenor).
Tre would not unlock the phone for me (have to see out 24 month contract) so i unlocked it myself using the services of unlockscope.com. The process was successful, and the phone no longer asks for a network unlock code when using previously locked sim.
The problems start now.. It just refuses to register on the network! If i switch the phone off, insert sim and start, then i get a brief flash of the carrier name in top left corner (2 seconds), and then it goes back to saying emergency calls only.
I cannot register manually, i have tried hundreds of times, even though the carrier appears in the list. The apn settings are also correct for my carrier.
I have also contacted my carrier and they dont understand the problem. I even had them run a check on the imei to see if it was blocked on their network (possible stolen phone) but it came back negative, no blocking whatsoever!
The weirdest thing is that it works when using my brothers Tele2 sim card! The phone registers in seconds and displays a nice 4g symbol next to the signal indicator! A thing to note is that this Tele2 nano sim fits very nicely in the tray and stays in place, whereas my telenor sim is extremely loose and falls out, though i have tried taping my sim in place with no success.
Can anybody relate to this problem or think of a possible cause? I dont know what to try anymore! I'm thinking that there must be something wrong with the phone, but then why does Tele2 work perfectly??!!
Sorry for the long post! I appreciate any help offered!
Click to expand...
Click to collapse
Hi mate
Maybe is the sim card......did you try your card in your brothers phone??

MAX 404 said:
Hi mate
Maybe is the sim card......did you try your card in your brothers phone??
Click to expand...
Click to collapse
Hello
Already tried that and it works fine I also recieved a new sim from my carrier and that works fine in other phones but not in my S7

vinnibinni said:
Hello
Already tried that and it works fine I also recieved a new sim from my carrier and that works fine in other phones but not in my S7
Click to expand...
Click to collapse
Hi
This is getting weird , did you try to do a factory reset from recovery also wipe cache and if that do not work you could also try to flash the firmware of the phone again ( odin)
http://forum.xda-developers.com/galaxy-s7/how-to/official-stock-firmware-update-odin-t3369431
Just in case is some odd firmware problem , back up everything important first...just in case

MAX 404 said:
Hi
This is getting weird , did you try to do a factory reset from recovery also wipe cache and if that do not work you could also try to flash the firmware of the phone again ( odin)
http://forum.xda-developers.com/galaxy-s7/how-to/official-stock-firmware-update-odin-t3369431
Just in case is some odd firmware problem , back up everything important first...just in case
Click to expand...
Click to collapse
I have already tried flashing with stock swedish firmware using odin (G930FXXU1APEQ_G930FVDS1APF1_VDS) but same problem persists.. One weird thing to note though is that even though i do a clean flash with unbranded swedish rom, the phone installs some carrier specific apps from the original carrier the phone was simlocked to upon first boot. How can that be??
Maybe its worth trying an international version?
Thanks for the suggestions

vinnibinni said:
I have already tried flashing with stock swedish firmware using odin (G930FXXU1APEQ_G930FVDS1APF1_VDS) but same problem persists.. One weird thing to note though is that even though i do a clean flash with unbranded swedish rom, the phone installs some carrier specific apps from the original carrier the phone was simlocked to upon first boot. How can that be??
Maybe its worth trying an international version?
Thanks for the suggestions
Click to expand...
Click to collapse
That is odd , yes try a totally different rom just to see how it turns out , even from another country it should not make any difference for the phone and connect easily to a network.
check this thread also
http://forum.xda-developers.com/s7-edge/how-to/guide-how-to-fix-check-drk-imei-issues-t3379516
EFS is a very important partition , is where the modem information is.......maybe?

MAX 404 said:
That is odd , yes try a totally different rom just to see how it turns out , even from another country it should not make any difference for the phone and connect easily to a network.
check this thread also
http://forum.xda-developers.com/s7-edge/how-to/guide-how-to-fix-check-drk-imei-issues-t3379516
EFS is a very important partition , is where the modem information is.......maybe?
Click to expand...
Click to collapse
I will try with an international firmware and see if there is any difference.. if not i will follow that guide on efs partition in case that is corrupt.. This is so frustrating!!!
Is it at all possible that a very loose fitting sim could be the problem? As the simcard of the carrier that works fits very snugly in the sim tray.

vinnibinni said:
I will try with an international firmware and see if there is any difference.. if not i will follow that guide on efs partition in case that is corrupt.. This is so frustrating!!!
Is it at all possible that a very loose fitting sim could be the problem? As the simcard of the carrier that works fits very snugly in the sim tray.
Click to expand...
Click to collapse
I get you mate........sim problem, yes very possible !!!!

MAX 404 said:
I get you mate........sim problem, yes very possible !!!!
Click to expand...
Click to collapse
I have now found out that the phone is stolen!!! So that explains everything. I dont know why the carrier couldnt see that the first time they checked, would have saved me days of frustration!!
It has been reported to the police here in sweden, so hopefully they will find who is responsible and i can get my money back!
Thanks for the help guys, very much appreciated even though it was an impossible case to crack!

vinnibinni said:
I have now found out that the phone is stolen!!! So that explains everything. I dont know why the carrier couldnt see that the first time they checked, would have saved me days of frustration!!
It has been reported to the police here in sweden, so hopefully they will find who is responsible and i can get my money back!
Thanks for the help guys, very much appreciated even though it was an impossible case to crack!
Click to expand...
Click to collapse
so sorry mate
you cant trust anyone........very sad
thanks for letting us know

vinnibinni said:
I have now found out that the phone is stolen!!! So that explains everything. I dont know why the carrier couldnt see that the first time they checked, would have saved me days of frustration!!
It has been reported to the police here in sweden, so hopefully they will find who is responsible and i can get my money back!
Thanks for the help guys, very much appreciated even though it was an impossible case to crack!
Click to expand...
Click to collapse
Oh no. Have the police found out the thieves? I think my phone may be stolen too because I have the exact same problem.

I have a buddy who works on cruise ships. He had purchased a OnePlus 8T (KB2003) he is back in India now and unable to use any SIM.

I think its a network band issur. Is there a way to switch or unlock them?

Since it's your buddy who is having this problem, not you...
You should ask him to contact the nearest OnePlus official support center.
This gives him the chance to describe what happened exactly to a tec pro and the best chance to solve his problem without losing any data on device.
If he can't do that, ask him to backup any useful data on device, read any useful posts here [ https://forum.xda-developers.com/f/oneplus-8t-guides-news-discussion.11585/ ], and try to get his firmware a re-flash.

My buddy did go to the service centre in India, they were pretty much useless.

kesherini said:
My buddy did go to the service centre in India, they were pretty much useless.
Click to expand...
Click to collapse
Is your buddy you?
If not, tell him to learn how to unbrick his phone...

Lol, I find your comments funny. No I am not my buddy and the phone is not bricked, EU, and India have diffrent LTE, 5g bands and he didnt realise that while making the purchase. Now with the Indian simcard the phone doesn't connect to the network. And if you dont have anything but a snarky comment keep it to yourself.

kesherini said:
Lol, I find your comments funny. No I am not my buddy and the phone is not bricked, EU, and India have diffrent LTE, 5g bands and he didnt realise that while making the purchase. Now with the Indian simcard the phone doesn't connect to the network. And if you dont have anything but a snarky comment keep it to yourself.
Click to expand...
Click to collapse
Sure, relax.
The thing is, there are many potential reasons for this phenomenon, that your buddy's phone can not recognize any sim card:
1. Broken sim card, which is not likely because your buddy tried many sim cards;
2. Broken sim card slot, which is only repairable by tear down the phone and replace the slot itself;
3. Broken integrated circuit, this is hard to locate, especially if you work on a boat, the salt from the sea breeze can get into the phone and corrode the circuit, and this is not fixable;
4. Broken software, might be:
4.1. baseband firmware, which can be repaired by re-flashing the correct firmware (aka using msmtool, or fastboot commands);
4.2. android system application, if your buddy has modified or disabled some critical application, it may cause the sim card stop working too.
5. And many other possible reasons.
And you speculate that the reason is 4.1, but you're not providing more info.
Besides, it's your buddy's phone not yours, your buddy is actually the only person who knows what happened exactly before and after the glitch comes out, no one else can speak for the litigant.
So over all my suggest is, try to use msmtool to re-flash the whole system and see if it solves the problem.
If the problem is 4.1 or 4.2, your buddy's device would be repaired, and this method is way easier than typing fastboot and adb commands for beginner (many users have caused their devices to be completely bricked rather than stay dysfunctional by executing commands they know little about.).
But if msmtool can not fix it, then the problem might be in hardware (aka 1-3), it's better to try contact OnePlus after-sale warranty to have it replaced or refunded.

kesherini said:
I think its a network band issur. Is there a way to switch or unlock them?
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I reckon not suitable for India (suitable for EU) cellular profile is activated on device.
Your friend needs to activate one for India using QPST&PDC.

Rootk1t said:
I reckon not suitable for India (suitable for EU) cellular profile is activated on device.
Your friend needs to activate one for India using QPST&PDC.
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Thank you. That is helpful, I will try this when I get my hands on the phone.