Develop Bugs

change imei number?

hi guys.
I just bought another TP2 from Ebay to replace my one which is broken. I've put my simcard but it doesnt register on my network. I've tried my sim card in another phone and it works fine, and I'm able to connect to wi-fi on the new TP2, but not to my network....so I've come to the conclusion that it must have a locked imei number.
I conacted ebay and the seller to ask whether it was a stolen phone, but to no avail. the seller has de-listed and ebay arent interested as the phone is in "working order", even though I cant connect to a network!!!
is there anyway to change the number, or unlock it, so I can use it? Otherwise it's a pretty expensive paper weight! My fault for not checking these facts before buying, but you live and learn....anyone help?
Cheers

Don't expect advice on changing the IMEI here.
As for unlocking, take a look here: http://rhodium.htc-unlocks.com/ (as far as I know, there is no free solution).

report the transation to paypal. You'll get your money back. Especially if the phone was potentially stolen.

[Q] Newbie here - unlocked i317 "MM#6 Phone not allowed" for overseas network

[Q] Newbie here - unlocked i317 "MM#6 Phone not allowed" for overseas network
hi all,
I'm new to this forum and its great to be associated with such a wonderful group
I bought an unlocked AT&T note2(i317, android 4.1.1 and firmware- i317UCALJ2) off ebay.com and got it to India a month back from WA.
I have been trying to configure mobile network on Indian carriers but always got these errors :
- " your sim card doesnt allow connection to this network" and "MM#6 phone not allowed"(MM#6 appears only since yesterday)
- the network bar(i.e. signal strength icon on home screen) doesnt capture the local networks at all which is quite surprising.
- Phone's IMEI(35700..) doesnt match IMEI on the back panel(35542..)
I heard about cases where phones purchased from ebay/craigslist getting blocked ( for example, http://forum.xda-developers.com/showthread.php?t=2341622) but I guess that shouldn't stop it from using overseas? Also, I heard IMEIs of such blocked phones look like "null", "0"s etc. but IMEI of my phone looks good and doesn't showup in the list of blacklisted IMEIs on swappa or CheckEsnfree. Lastly, I also checked the GSM bands of i317 and they are definitely compatible in India.
Can someone kindly help?
Many thanks in advance.
Chaitanya.

I would like to add that I have tested SIMs from multiple carriers but failed to locate networks and APNs. All other features like WIFI, Bluetooth etc are working like a charm so I suspected if it got to do something with the IMEI.
I request some guidance from the experts in pointing to the issue so that I can try the workaround(Sorry..Im a novice at troubleshooting android )
Kindly let me know or redirect me to a forum if already exists.
Thanks,
Chaitanya.

Could you please say your baseband? It's in settings> about> phone.

rangercaptain said:
Could you please say your baseband? It's in settings> about> phone.
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Click to collapse
Thanks for your reply mate.
Here are the details:
baseband - I317UCALJ2
CSC - i317ATTALJ2
Bootloader - i317UCAMH3

The good news is your phone is clean stock.
The bad news is your phone is blacklisted, and the IEMI was hacked/changed.
The only legal way to solve this is to contact the original carrier (I'm guessing AT&T USA), give them your IEMI, tell them you bought it legally in the USA, and ask them to unblock it. The blacklist is all US carriers and their overseas versions, all European carriers and their subsidiaries. Like Orange or Voda or t-mobile.

rangercaptain said:
The good news is your phone is clean stock.
The bad news is your phone is blacklisted, and the IEMI was hacked/changed.
The only legal way to solve this is to contact the original carrier (I'm guessing AT&T USA), give them your IEMI, tell them you bought it legally in the USA, and ask them to unblock it. The blacklist is all US carriers and their overseas versions, all European carriers and their subsidiaries. Like Orange or Voda or t-mobile.
Click to expand...
Click to collapse
My bad..I should have checked the status beforehand in detail. Till now I was only aware that bad IMEI phones arent allowed majorly in US only (saw many such phones being sold on ebay intended for international use ).
As far as I know, i317 is only the at&t version of note2 in US and it differs a lot from its International versions (gt 7100, 7105 etc). Do you still think this blacklisted issue holds good in countries where i317 isnt available?
Since sending the product back to US is highly unlikely, can you kindly let me know the best way I can get the issue fixed?

Answered in my post above. From India you can probably use the tech chat from AT&T website.
It's a blacklist of disallowed IEMI's so the model is irrelevant.

rangercaptain said:
Answered in my post above. From India you can probably use the tech chat from AT&T website.
It's a blacklist of disallowed IEMI's so the model is irrelevant.
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Click to collapse
Thanks Rangercaptain for your clarification. I tried AT&T's live chat but it seeks registered contact details to login. Is there any email support?
Not sure if these kind of questions are allowed here but I heard there are tools that help to retrieve lost IMEIs (which work on rooted phones).
In case it gets tough to get hold of AT&T, can I try any of such tools on my phone since it is not registered in my county anyway and doesnt come with any warranty?
P.S:I know changing IMEI is illegal but I guess retrieving it is not :fingers-crossed:

chaitanyapatwari said:
Thanks Rangercaptain for your clarification. I tried AT&T's live chat but it seeks registered contact details to login. Is there any email support?
Not sure if these kind of questions are allowed here but I heard there are tools that help to retrieve lost IMEIs (which work on rooted phones).
In case it gets tough to get hold of AT&T, can I try any of such tools on my phone since it is not registered in my county anyway and doesnt come with any warranty?
P.S:I know changing IMEI is illegal but I guess retrieving it is not :fingers-crossed:
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Click to collapse
I started to think may be the motherboard got changed(since S/N also looks different and the phone looks absolutely new with no wear at all)?
I'm being forced to think that IMEI is clean because some followup with AT&T and US Samsung care have confirmed that the phone's back IMEI and S/N are definitely good with warranty till 2015 and don't show up in any of the blacklisted lists.
I'm sorry for posting different questions but please note that I'm not much aware about this phone's history and I'm trying to openly share the results from my extensive findings. Thanks!!

If you're sure everything is clean are you sure your Sim card is correctly provisioned for the network? The easiest way to find out is to trade cards with a working phone.
Before you think about trading main boards (I did that because the gps connector was broken) go to www.mobiletechvideos.com and see what they can do for you.

rangercaptain said:
If you're sure everything is clean are you sure your Sim card is correctly provisioned for the network? The easiest way to find out is to trade cards with a working phone.
Before you think about trading main boards (I did that because the gps connector was broken) go to www.mobiletechvideos.com and see what they can do for you.
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Click to collapse
Yes, I have been trying this on a working sim with an active data plan which is currently working on my xperia.
Over the last 2-3 days, I have learnt that flashing a wrong ROM sometimes might corrupt EFS folder that stores IMEI,serial number etc., and reinstalling firmware through ODIN(which requires to download original stock ROM separately) or KIES software might restore the lost EFS folder.
I thought of giving this a try and accordingly reinstalled the official firmware but without any success.
Can someone redirect me to any such guides/threads that might help? If it doesnt happen then I would like to close this thread and create a new one for EFS related troubleshooting.

If efs is corrupted there is no s/n or imei shown. It displays null

Nexus 5x pick no service

my lg nexus 5x recently went to become just a personal compact computer that unable to make or receive any call or connect to network, not a phone as smartphone as it should be. everything work just fine only that it not pick up any service. it has detected the sim card is inserting and the carrier name of the card (it's AIS, i'm living in Thailand) but still the bar is empty and its IMEI is still good. After several investigation and tens of flashing which doesn't work, I came across with some clue of the causes of the problem and I'm begging if someone has a solution for it.
1. i found that in Thailand the LTE band that is support here is only band 1 and and band 3 which in this device it support only USA, 5 and 7 so is anyone know where to get a radio.img file for flashing it to make it work?
2. when I brought this phone it said it the description that it is unlocked, but I not sure its really is or not, so is there any way to check on that and a way to unlock it.
3. i'm quite certain that isn't a hardware problem as it's still able to detect the card i put in, so if it a software problem and someone know a clue of solution, please post in
thank you

pongsiritn said:
my lg nexus 5x recently went to become just a personal compact computer that unable to make or receive any call or connect to network, not a phone as smartphone as it should be. everything work just fine only that it not pick up any service. it has detected the sim card is inserting and the carrier name of the card (it's AIS, i'm living in Thailand) but still the bar is empty and its IMEI is still good. After several investigation and tens of flashing which doesn't work, I came across with some clue of the causes of the problem and I'm begging if someone has a solution for it.
1. i found that in Thailand the LTE band that is support here is only band 1 and and band 3 which in this device it support only USA, 5 and 7 so is anyone know where to get a radio.img file for flashing it to make it work?
2. when I brought this phone it said it the description that it is unlocked, but I not sure its really is or not, so is there any way to check on that and a way to unlock it.
3. i'm quite certain that isn't a hardware problem as it's still able to detect the card i put in, so if it a software problem and someone know a clue of solution, please post in
thank you
Click to expand...
Click to collapse
1. Has it ever worked? Does it work on 2G/3G as the websites I link below say it should? The actual phone or simcard could be at fault here. But some info: If its not the international version and your carrier does not use the same bands then there is no software fix for this as it has to do with the hardware make up. Eg If the hardware cannot see band 3 no software with make it do so.
Here maybe some helpful links
https://www.frequencycheck.com/compatibility/k6lh22/google-nexus-5x-lg-h790/thailand
http://www.droid-life.com/2015/09/25/nexus-5x-hits-fcc-with-all-us-carrier-bands-including-verizon/
My suggestion, Return it and get the international (h791) model.
2.Unlocked in the fact there are no carrier/manufacturer restrictions preventing you from modding or preventing you from going to another carrier other than the one you brought it for. EG Moding a samsung device is a nightmare as carriers/manufacturers prevent you from unlocking the bootloader/installing recovery's etc and hacks are required to get around this. LG/Google allow this. 2 easy steps to unlock the bootloader and you are away.
3. It maybe the fact that the information maybe hardcoded on the simcard.

Thank you for your solution. It seems likely to be the first one as it has said in the description that it is the h790 when I brought it from eBay, and when it came and after I refurbished it, it never pick up my carrier's service since then.
One more question, is there any way to test the signal receiver function as if its still functional or not, by simulate US signal or something, because I may want to sell it to US someday and I want to make sure that it is actually work.

pongsiritn said:
Thank you for your solution. It seems likely to be the first one as it has said in the description that it is the h790 when I brought it from eBay, and when it came and after I refurbished it, it never pick up my carrier's service since then.
One more question, is there any way to test the signal receiver function as if its still functional or not, by simulate US signal or something, because I may want to sell it to US someday and I want to make sure that it is actually work.
Click to expand...
Click to collapse
The only way to test it is to use it on a network it supports.

Need some information about Netlock on LG G4

Hi there,
I need some help/information in an unusual case, where my originally not locked (was never locked) G4 came back after warranty replacement of the maonboard with an actual netlock.
Neither the provider nor LG seems to even believe that there is now a netlock on my mobile, their database list my mobile as not netlocked, so they cant even provide me an unlockcode.
While it might be a rare case, it happend to other people in the past as well.
https://www.reddit.com/r/lgg4/comments/5bwc3r
I already tested about 10 different firmwares and two unlocking companies. They told me as well that my IMEI is not listed in any database as being locked.
I dont expect a solution to unlock it on my own, but maybe someone is able to give some deeper technical information about how a netlock works and what could have happend to my mobile. Maybe with some more information i am able to convince either LG or my provider to investiagte further.
Regards
Lobiani

Damn, that sucks !
Have you tried filming/photographying the process (inserting the SIM card and getting the unlock prompt) and sending it to either LG (and/or your phone provider) to convince them ?
If I were you, I’d try to negociate a swap for another G4.

Question is there a way to unlock network?(sim unlock)

so i got a t-mobile(locked) version of fold 3 off amazon. i wanted to use on verizon. long story short.
1. got it for decent price looked at condition looks fantastic!
2. don't work called t-mobile, can't seem to unlock it. imei is clear and went to T store see if was paid off(i seem like its paid off after running imei).
3. sending back cost money... stupid me should have checked prime seller or not.
got like 60days or so before i have to send it back.
i tried just about everything i can or at least what i found online... i get error code on (connection-> more connection-> unlock permanent-> error 14,9)
im planning on returning it if there is no way to unlock sim (without the help of the carrier or third party shop). since its about 20buck to return. seem like online request is about 60buck or so (at least what i found) but then again im extremely skeptical about sending money online to questionable sites.
after reading most of the forums in xda regarding unlocking sim. CSC flashing will not change the sim lock status? its just about updates and bloatware or certain features not available in certain countries.
is there a way anyone found sim unlock is possible? if so i seem to missed it

There's no real way around it and XDA won't help you with a sim unlock that isn't official I think

This is a common thing that people think that talking about Unlocking things on a phone here on XDA, there is an assumption that it include SIM Unlock.
Unfortunately, it does not. If you cannot find an official way (which is all we can talk about here), then you'll have to try somewhere else.
In the past, using SIM Unlock services worked well, but now, it's pretty hit and miss. If you want to try one of the paid services, I would suggest doing the following:
1. Review and research a site before sending money
2. Make sure they have a money back guarantee if they cannot unlock it
3. Use a payment method that will protect your purchase
- PayPal can be an option, but disputed for them are hit and miss
- Use a credit card that has purchase protection
Just be careful if you decide to go this way, but, unfortunately, outside of what I posted, this is probably the most people are going to say on this.