Develop Bugs

[Q] SGH-T889 Metro PCS sim not working

Hello,
Today I bought a Note 2 on Craigslist. Since it was from TMobile I though it was only a matter of putting my sim card in the phone and it would work, I was wrong. The person that I bought the phone from gave me an unlock code that he got straight from T-Mobile, however when i used my sim card the phone didn't ask me for the code, so I assumed it was already unlocked.
I called Metro PCS to replace my current phone (LG optimus 9) with the Note 2, they tried using the IMEI number and they told me that there was a problem, that they couldn't activate the phone, and that I had to go to a T-Mobile store. I went to the store, they checked the IMEI and they say it was fine, the guy also told me that the unlock codes are only valid for 72 hours and the person who sold me the phone requested the code on 01/17/14 which means the code its no longer valid.
After that I tried calling Metro to get the phone activated, it didn't work...
I thought that maybe the phone was still locked so I did a downgrade to 4.1.1 - UVALJ1 (the phone was rooted and it had a 4.3 custom rom) and unlocked the phone using the method of that "secret" menu. I tried using the Metro sim card, no luck. At this point I dont know what else to do, a T-Mobile sim card works fine, I haven't tried with another carrier, however I've been using my Metro sim card in my L9 with no problem, so I don't see why it shouldn't work with the Note 2.
So my question is if anybody has tried using the Note 2 on metro, specifically a T-Mobile one, and if so, how did you make it work?
I am pretty new to all of this rooting and android stuff, but I have done as much research as possible before asking, this is my last resource so hopefully someone can help me. Thank you in advance.

Update: After trying multiple times to activate the phone on Metro PCS it turns out the phone appears on their database as it hasnt been paid in full and theres an unpaid equipment installment balance, that is only on Metro PCS database. I went to T-Mobile and everything was fine on their system, no blacklisted, no unpaid balances, no nothing so I activated the phone with them. Now hopefully the guy who I bought the phone from doesnt decide to report the phone as stolen or lost just to be an ahole.
Im on android 4.1.1 and I want to upgrade but my phone its telling me that I cant upgrade because my phone was modified. I want to upgrade to 4.3 but I dont know if I lost root when I downgraded to 4.1.1, how can I check if im still rooted and what rom do you guys recommend flashing? Thanks in advance
-- Thread can be closed, already rooted, upgraded and de-bloated.

[Q] How to unlock LG G2 Sprint for International GSM carriers using MSL code

Hi Guys,
I got a good deal for LG G2 Sprint in Swappa. The seller said that it can be unlocked easily with MSL code for INTERNATIONAL use.
I have the MSL code with me now, but don't know where to plug in or what to do with it. On inserting my native country's (Indian) SIM card, getting "NO SERVICE" message.
Is there any easy way to unlock Sprint G2 for international carriers alone using MSL?? Can you help me out....
Currently running LS980ZVG with build LRX22G

LS980ZVG unlock help
venkat T said:
Hi Guys,
I got a good deal for LG G2 Sprint in Swappa. The seller said that it can be unlocked easily with MSL code for INTERNATIONAL use.
I have the MSL code with me now, but don't know where to plug in or what to do with it. On inserting my native country's (Indian) SIM card, getting "NO SERVICE" message.
Is there any easy way to unlock Sprint G2 for international carriers alone using MSL?? Can you help me out....
Currently running LS980ZVG with build LRX22G
Click to expand...
Click to collapse
I am in a similar situation. after receiving the phone i noticed the network options were available for selection but then i updated to lolipop 5.0.2 and now the network options are watermarked. I have rooted and followed instructions to add property folder to carrier, add apns-conf.xml to etc folder and deleted the 2 recomended files but they keep returning. after dialing ##DATA# in APN settings i am not able to make any changes. inserted my sim and it says invalid card.
any help?

Use Verizon note 4 on AT&T

I got Verizon Note 4.
Verified that it is unlocked. Not stolen. No contract binded from Verizon store and through phone (Clean phone)
Android Version : 5.0.1
Location: Las Vegas
Insert AT&T sim card. No signal.
Change APN setting following the information on AT&T website. Still not working. No signal.
At&t store rep. said I need to l unlock the phone ( I already check with Verizon via phone and store)
Verizon rep. on phone said: I should be able to use the phone with At&t sim card
Verizon Rep. in store said : Galaxy note 4 won't work on AT&T. It needs to be rooted by an expert. Only Galaxy S5 or later version will work.
I searched websites and many say that they are using Verizon Note 4 on AT&T network (At&t sim card)
I just need to use phone and text message. No data needed.
Anybody can help me?

I was able to use SIM from AT&T before yesterday, but after trying to update the firmware using Software Upgrade Assistant tool on Windows 10, it's now stuck at 'searching for service'.

Did you change the network settings from global to lte/GSM?

I am reading this. Maybe a solution.

Did you try to insert a different carrier sim card and entering the unlock code?
---------- Post added at 09:27 PM ---------- Previous post was at 09:24 PM ----------
After reading post i see you have a att sim sim on verizon phone. This could be a problem as verizon and att dont play nice. Stupid question is did you actually pay for service?

cozmohoot said:
Did you change the network settings from global to lte/GSM?
Click to expand...
Click to collapse
I did. Not working

It is not working. No verizon sim card message is gone but still no signal.
sam369 said:
I am reading this. Maybe a solution.
Click to expand...
Click to collapse

Yes I did. Not working
cozmohoot said:
Did you change the network settings from global to lte/GSM?
Click to expand...
Click to collapse

dayse said:
It is not working. No verizon sim card message is gone but still no signal.
Click to expand...
Click to collapse
Yeah. Me either.

Did you do a factory reset after software update. Usually helps. Also mess with APN settings. Reboot after changing APN.

Problem solved.
Changing APN settings and reboot did not work. I just inserted the Verizon SIM came with the phone and made a phone call. Of course it's not activated, so I hang up when it reached Verizon automated system. Guess what, now SIM from Lycomobile works. H2O Wireless SIM also works. It means that it now can work with AT&T and T-Mobile network.

sam369 said:
Problem solved.
Changing APN settings and reboot did not work. I just inserted the Verizon SIM came with the phone and made a phone call. Of course it's not activated, so I hang up when it reached Verizon automated system. Guess what, now SIM from Lycomobile works. H2O Wireless SIM also works. It means that it now can work with AT&T and T-Mobile network.
Click to expand...
Click to collapse
I'm in a similar boat as you (4.4.4 on Cricket Wireless, wanting to upgrade to 5.1.1). I just want to make sure I understand what you did to restore service:
1. You had phone working on AT&T with an older Android version (KK?)
2. You upgraded to a newer version via the Verizon upgrade tool (I assume 5.0.1 since 5.1.1 is not yet available via the tool)
3. You lost AT&T service after upgrade
4. You were able to restore AT&T service by using an inactive Verizon SIM and making a phone call
Is this correct? TIA

ftkftw said:
I'm in a similar boat as you (4.4.4 on Cricket Wireless, wanting to upgrade to 5.1.1). I just want to make sure I understand what you did to restore service:
1. You had phone working on AT&T with an older Android version (KK?)
2. You upgraded to a newer version via the Verizon upgrade tool (I assume 5.0.1 since 5.1.1 is not yet available via the tool)
3. You lost AT&T service after upgrade
4. You were able to restore AT&T service by using an inactive Verizon SIM and making a phone call
Is this correct? TIA
Click to expand...
Click to collapse
Mostly, except that I tried to upgrade from 5.0.1 to 5.1.1, but found that 5.1.1 was not yet available via the tool, but the process of installing the software on windows 10 and maybe I also used the Verizon SIM during the process which might have messed something up. I updated the firmware to 5.1.1 by downloading the zip file in a thread here and flashed it through recovery. The network connection problem was then solved by making a phone call with the SIM came with the phone.

sam369 said:
Mostly, except that I tried to upgrade from 5.0.1 to 5.1.1, but found that 5.1.1 was not yet available via the tool, but the process of installing the software on windows 10 and maybe I also used the Verizon SIM during the process which might have messed something up. I updated the firmware to 5.1.1 by downloading the zip file in a thread here and flashed it through recovery. The network connection problem was then solved by making a phone call with the SIM came with the phone.
Click to expand...
Click to collapse
I just updated via the Verizon tool (BPA1 finally showed up) and it was, surprisingly, perfectly fine. I first backed up as much as I can (via Smart Switch and Helium app), then pulled my mSD card, left my SIM card in the phone, and proceeded to update. After the first boot stuff (app optimization, etc.) I soon saw the AT&T sign in the notification bar, and I was able to make a phone call without doing anything else. With all the reports of SIM card locking after updating I was worried that I might run into the same issue, but was pleasantly surprised that I didn't. I had to re-enter the APN setting as the upgrade seemed to have removed it, but after re-adding Cricket's APN I was able to get cellular data as well.
Thanks again for your help

You need to access the hidden menu and change your radio and modem protocols. There's a forum on XDA called domestic and internation sim or network unlock for spring but should work the same on verizon

fyi, i got my note 4 working on gsm using 2 different freedompop sims-the at&t lte sim gets lte via band 4.
the global sim based on t-mobile did get hpsda+
just change the apn

no network available. only getting AWAYs

as the title suggests, i gotten the lg g3 from a guy off kijiji. He was with virgin mobile its d852. i payed to unlock the network and put my WIND sim in. I unlocked the network when there was no sim card. I put my sim card in but the only available networks i was getting is all away.
i swapped the sim thinking it might be that. no luck. i checked to see if this was blacklisted, it wasnt.
im running on cm13.
could this be because the bands are not activated? IF so, i tried following this guide http://forum.xda-developers.com/galaxy-s5/general/how-to-add-rf-lte-frequency-bands-to-t2886059 but it didnt work. i couldnt get the right driver to show up.
Also could it have been impacted by unlocking the network without the sim card in yet?
if someone can help with skype to speed things up for live debugging that would be greatly appreciated. you can add me at [email protected] for skype.

update: so i called wind to see if they can register the phone as on the network and they said they cant put the imei on the account. what does that mean?

Wind needs d852g... Not d852... There is some old threads of people converting the rom and modem to d852g which unlocks the band required for wind.... Search for that, no idea if it works or not tho
Sent from my LG-D852

i had a g3 before and it was d852 and it worked fine...
like i said its d852. i couldnt even flash d852g in.

swapped sim cards with a friend who is also on wind and my g3 couldnt get service but my sim card worked fine on her phone.

another update flashed 852g firmware on my 852 no change. i did so with 852g firmware and 852 dll.
i also flashed 852 tot with 852g dll and still no change in network.
called virgin mobile and they see that the imei is no longer on the account.
this is such a pain does anyone have anything to help??? is there an easy way to view all the bands the phone currently have??

anyone??

LG G3 D851 shows full bar signals but no service

Hey guys i'm having some problems with my lg g3 d851, since the screen of my beloved lg g2 died after 2 years and a half, my friend gave me his lg g3 to use it as a tablet since the phone doesnt recognize any signal at all, right now is running the stock rom for android marshmallow, everything works fine except for the signal that either always keeps in "no service", i already try to put another sim card on the phone and its showing the same problem, already checked the IMEI on the swappa blacklist and everything is okay, here are a few screenshots, any thoughts on how to solve this problem would be very appreciated thank you!

Have you modified the APN settings under mobile networks?

kfcherry said:
Have you modified the APN settings under mobile networks?
Click to expand...
Click to collapse
hi thanks for replying, yeah i already modified the APN settings under mobile networks with the APN of my carrier that is IUSACELL (AT&T México) and is still showing the same problem "no service" or "searching"

I had the same problem, try installing another modem, or send me an pm, I have the same mobile company (right now I'm having some problems with the at&t mexico)

I am having a similar problem with my d851 30g. It isvnot rooted and running stock android 6.0 tmobile rom. I am with movistar (mexico) it will have signal and be on the network and then eject the sim saying invalid then reset. Did factory reset. Movistar sim worked for about an hour and then same thing. Have a s from telcel switched and no problem till this Morning. Did the same thing and restarted. Recognized the sim and all fine. I am new to this and could use a little help. As it is connecting with the other sim and not my movistar sim. Possible software issue or corrupted sim?
Thanks in advance,
Alex miller