Empty Data Triangle - Nexus 6 Q&A, Help & Troubleshooting

Help!
I have a Nexus 6 that my son bought off of Swappa, and it worked fine for about six weeks. It has an AT&T sim card in it. One day he looks down at his phone, and has no data connection. The data indicator in the status bar just shows an empty triangle. He was running Chroma 6.01 at the time.
Things I've tried and the results: (I have tried fixing APN settings along each step of the way, the phone won't pull them in automatically. I've also tried locking it down to 2g/3g/LTE only)
1. Wiped and reinstalled Chroma - no change
2. Completely wiped and factory reset using Wug's - no change
3. Took to AT&T, had sim card replaced. New sim card works fine in another phone, but no change on Nexus.
4. Completely wiped, updated radio, and installed PureNexus - still empty triangle, but got a couple emergency broadcasts...very odd, tells me it has some kind of connection.
5. Tried all versions available for radio, tried rolling back to factory lollipop using Wug's, no go.
6. Wiped and install OctoOS - no change
7. Had sim card replaced one more time for good measure - no change
8. Took Verizon sim card and installed, now it has bars in the triangle, APN is automatically located, but no actual data...I'm guessing because the phone isn't actually activated for the Verizon account?
Edit: 9: I did check the IMEI through both Swappa and AT&T, and it came up clean both places.
Edit: 10: I did factory reset using Wug's to 5.1.1, 5.01, and 7. Full data wipes each time, including SD card.
Observations: The phone is reading the sim card, at least partially. It pulls the phone number from the sim card properly, shows the proper carrier, and almost works with Verizon (well, different results from AT&T anyway.) That to me indicates that it might not be hardware related, but I don't know what else it could be after doing everything I've done.
I'm hoping somebody here may have some other suggestions to try?

When I read your trials ... Did you try the official stock rom?

The N6 sounds like it's blocked on AT&T's network. Follow @NLBeev's advice first. If that doesn't work, I'd double-check the IMEI using Swappa's tool. The original owner might have had the thing financed and stopped making payments once he got his money.

I did actually, sorry, I should have included it in my original post. I'll modify to include it. I actually tried 5.1.1, 6.01, and 7.

Excellent suggestion, and I did actually try that. I forgot I did that, thank you for reminding me. I'll add that to my original post. I checked the IMEI both in Swappa and through AT&T, and it came up clean both places. Is it possible they could have blocked it a different way, not using the IMEI?

Granted I don't have even a sliver of the technical knowledge of the other members who commented, but, reading through your post and the thread...
It seems to me that the Nexus 6 might still be Carrier Locked to Verizon...
https://www.gazelle.com/thehorn/...locked-phone-and-why-do-carriers-lock-them/
Which is possible even if the phone has payed off and has both a clean IMEI and clean ESN.
Just my thoughts.

KCT1975 said:
Granted I don't have even a sliver of the technical knowledge of the other members who commented, but, reading through your post and the thread...
It seems to me that the Nexus 6 might still be Carrier Locked to Verizon...
https://www.gazelle.com/thehorn/...locked-phone-and-why-do-carriers-lock-them/
Which is possible even if the phone has payed off and has both a clean IMEI and clean ESN.
Just my thoughts.
Click to expand...
Click to collapse
Very good thought, and I will look into it. I suspect it's most likely not the case though, since it worked on AT&T for about six weeks prior to it failing. The seller sold it as an unlocked phone, previously used on the AT&T network, but you know how that goes. Can't take anything on faith when it comes to used equipment :/

KCT1975 said:
Granted I don't have even a sliver of the technical knowledge of the other members who commented, but, reading through your post and the thread...
It seems to me that the Nexus 6 might still be Carrier Locked to Verizon...
https://www.gazelle.com/thehorn/2014/01/29/what-is-a-locked-phone-and-why-do-carriers-lock-them/
Which is possible even if the phone has payed off and has both a clean IMEI and clean ESN.
Just my thoughts.
Click to expand...
Click to collapse
Typically Verizon phones are unlocked. I bought the N6 off eBay and the seller had Verizon at the time and it was a Verizon branded 6. I did not unlock it and used it on ATT/Cricket for 6 months before coming to Verizon.....
Have you checked to see if you have an IMEI number under settings? Maybe your EFS partition got screwed up.

By law (FCC) verizon LTE capable phones are sold unlocked, don't think it's a carrier lock issue

Have you verified with att (or who the use for insurance claims) that phone wasn't reported stolen after you may have bought it? I know a guy who bought a HTC 10 on Craigslist and it worked great for 3 weeks then was killed. When it was reported lost/stolen.
Sent from my Nexus 6 using XDA Free mobile app

31ken31 said:
Have you verified with att (or who the use for insurance claims) that phone wasn't reported stolen after you may have bought it? I know a guy who bought a HTC 10 on Craigslist and it worked great for 3 weeks then was killed. When it was reported lost/stolen.
Sent from my Nexus 6 using XDA Free mobile app
Click to expand...
Click to collapse
I did verify with AT&T that there was no report of it being stolen. The IMEI does show up in settings, as does the phone number. It shows "Carrier Unknown" in the carrier field though, but only when on AT&T. When I try Verizon, it actually reads Verizon as the carrier.
When I boot into the bootloader, it shows Device Unlocked, Status Code 3, so I think it's unlocked properly.
Is it possible, as chapelfreak suggests, that the EFS partition is corrupt? If so, is there a method to fix it?

jeromekobriger said:
I did verify with AT&T that there was no report of it being stolen. The IMEI does show up in settings, as does the phone number. It shows "Carrier Unknown" in the carrier field though, but only when on AT&T. When I try Verizon, it actually reads Verizon as the carrier.
When I boot into the bootloader, it shows Device Unlocked, Status Code 3, so I think it's unlocked properly.
Is it possible, as chapelfreak suggests, that the EFS partition is corrupt? If so, is there a method to fix it?
Click to expand...
Click to collapse
If it's efs usually it needs to be backed up before restoring. If you are able to flash it be cognizant of which twrp you use.
http://forum.xda-developers.com/nexus-6p/help/announcement-twrp-3-0-2-1-fatal-bug-t3453119

mikeprius said:
If it's efs usually it needs to be backed up before restoring. If you are able to flash it be cognizant of which twrp you use.
http://forum.xda-developers.com/nexus-6p/help/announcement-twrp-3-0-2-1-fatal-bug-t3453119
Click to expand...
Click to collapse
Darn. So if there's no EFS backup, chances are this thing is now just a very small WiFi tablet? I didn't make a backup of EFS, didn't even bother to make any backup at all, just flashed Chroma and let it run for a month and half before the deathstroke happened.

jeromekobriger said:
Darn. So if there's no EFS backup, chances are this thing is now just a very small WiFi tablet? I didn't make a backup of EFS, didn't even bother to make any backup at all, just flashed Chroma and let it run for a month and half before the deathstroke happened.
Click to expand...
Click to collapse
I've read a few threads where the EFS got corrupted and the phone had to be returned, but that was several years ago so personally I have a EFS backup via TWRP on a OTG stick, but I've never had to use it. I know it's an option to back up in the nandroids for TWRP but usually that is not one of the boxes checked.
I agree with you though it is hard buying pre-owned items. Personally, I have learned from past purchases to stay away from anything electronic that has been pre-owned due to the unknown nature and it can be a hit or miss.

Related

SIM Card will not Allow this connection

Hi Guys...
2 days ago i woke up and found that my phone had no signal. I thought that Rogers (my carrier) was screwing around or something. So i just restarted my device. Nothing.
I checked *#*#4636#*#* and my radio was on (toggled it on and off and on again) and the correct network types were selected (GMS/LTE/CDMA etc. I checked in the settings menu and the correct network types were selected again. Lastly APN settings were all entered for MMS, Data, LTE, etc.
I try to search for the network and it shows Rogers, Telus and Bell. I try to connect to Rogers and i get a message saying that "Your SIM card does not allow this type of connection".
I luckily had a backup from the day previous which i restored. No go there. I did a full clean wipe and install of Viper One RC2 and then a random AOSP-based ROM, again nothing.
the weird thing is that in the Phone Information menu the device reads my phone number and IMEI easiy, so its not like the phone isn't reading the SIM card...
Has anyone encountered this problem or have any suggestions? I have seen this error happen with other devices when i Googled it and searched XDA, but no solution or resolution, and definitely nothing specific to the HTC One.
Did you buy the phone new or used? I've seen this happen to people who bought used phones on ebay. There's a scam going in which the seller will wait a month to get outside the return period and then report it stolen. They get the $$$ and a new phone, and you're screwed.
If you bought it new, your sim card might be damaged.
I wish it was a SIM card issue, but it's not. I tried the same SIM in my Nexus 4 and it works just fine. My sister has an iPhone 4S, I swapped the SIM from it and it didn't work either.
The device itself is a Telus device unlocked that I bought locally brand new from a seller off of kijiji. The device was completely untouched and wrapped in all the right ways. I bought it back in June I think.
Sent from my Nexus 4 using xda app-developers app
Deus_eps_machina said:
The device itself is a Telus device unlocked that I bought locally brand new from a seller off of kijiji. The device was completely untouched and wrapped in all the right ways. I bought it back in June I think.
Click to expand...
Click to collapse
It may have been a brand new phone that the seller bought and immediately put up for sale.
You need to talk to Telus to see if the IMEI has been reported stolen.
So the device is definitely blacklisted in Canada...Rogers is saying it's Telus that blacklisted it. Telus is saying they never had the device in their inventory (IMEI doesn't show in their database), so it isn't their device and they didn't blacklisted it. Bell said they had in their database and its a deactivated IMEI, so...I'll be taking a trip to several corporate stores to get this sorted today.
Sent from my Nexus 4 using xda app-developers app

Put Sim into N6, old phone cannot be activated by someone else (Verizon)

Took my sim out of an HTC One M8 and put it into my new Nexus 6. No problems on my end. Sold my M8 and the buyer is stating that they cannot activate the phone. Did I miss a step? The M8 was factory reset to wipe data and is running a custom rom w/ bootloader unlocked. I don't have any further information from the buyer yet but does this sound familiar to anyone? Thanks for any help.
Yazzinit said:
Took my sim out of an HTC One M8 and put it into my new Nexus 6. No problems on my end. Sold my M8 and the buyer is stating that they cannot activate the phone. Did I miss a step? The M8 was factory reset to wipe data and is running a custom rom w/ bootloader unlocked.
Click to expand...
Click to collapse
How is it running a custom ROM if you did a factory reset?
Yazzinit said:
I don't have any further information from the buyer yet but does this sound familiar to anyone? Thanks for any help.
Click to expand...
Click to collapse
I have never tried to have Verizon activate a new SIM card in a phone running a custom ROM. Tell the buyer to return it to stock and try again.
I used the wrong term then. I went into settings and wiped my user data and it rebooted into the custom ROM but at the set up stage w/ no saved accounts.
I'll pass along returning to stock and trying again.
Yazzinit said:
I used the wrong term then. I went into settings and wiped my user data and it rebooted into the custom ROM but at the set up stage w/ no saved accounts.
I'll pass along returning to stock and trying again.
Click to expand...
Click to collapse
Also, obviously data has to be enabled but I find it is best to turn off WiFi when activating a new SIM card to make sure that the device connects to the LTE network.
Thanks for that as well!
Yazzinit said:
Took my sim out of an HTC One M8 and put it into my new Nexus 6. No problems on my end. Sold my M8 and the buyer is stating that they cannot activate the phone. Did I miss a step? The M8 was factory reset to wipe data and is running a custom rom w/ bootloader unlocked. I don't have any further information from the buyer yet but does this sound familiar to anyone? Thanks for any help.
Click to expand...
Click to collapse
I would suggest that you check the IMEI, just to make sure it hasn't been black listed for some reason. There are a number of sites where you can do this, including swappa.com
I actually sold it on Swappa. Wouldn't see why the IMEI would be blacklisted. I was the only owner and there were never any issues with my bill. Phone worked through the day I got the Nexus 6.
Well the buyer have to get a Sim from Verizon or phone won't work. Sim is for LTE. I bought a g3 off craiglist without a Sim and it only could run on 3g until I got a new Sim. Tell the buyer to try there's if they have one . I Have sprint so Verizon might be completely different. They ordered me a new one for free

[Q] switching from TMO to Verizon?

Hi, I'm interested in switching my N6 to Verizon from T-Mobile. However I input my IMEI on the VZW website checker and apparently the phone (bought at TMO and allegedly unlocked) is incompatible.
I vaguely recall that to get a non VZW phone onto there network, one ahs to use a previously registered sim from another phone. Anyone know if and how this works?
Is there something that starts with 990?
My verizon nexus 6 order shipment email shows the imei start with 990
Theres a few threads that explain how to do this and more than one way. I did this for my dad. Basically, u need a verizon nano sim activated and jus pop it in.
ilanzo82 said:
Theres a few threads that explain how to do this and more than one way. I did this for my dad. Basically, u need a verizon nano sim activated and jus pop it in.
Click to expand...
Click to collapse
As someone who has done this... it causes other problems because you have an "unknown device" they basically wont let me me changes to my plan because of it. For example enable advanced calling. After *****ing at them for an hour someone said there is a form we can fill out to register your device on our network so it doesn't show that way.... they said it takes 1-3 business days to process and i did it on Friday. If it actually works i will make a post on it. to inform the masses.
JustusIV said:
As someone who has done this... it causes other problems because you have an "unknown device" they basically wont let me me changes to my plan because of it. For example enable advanced calling. After *****ing at them for an hour someone said there is a form we can fill out to register your device on our network so it doesn't show that way.... they said it takes 1-3 business days to process and i did it on Friday. If it actually works i will make a post on it. to inform the masses.
Click to expand...
Click to collapse
First, thanks to the mod for moving this to the Q&A section! I will remember next time...
I actually decided that, if I can, I would like to move to Straight Talk with my Nexus 6. I ordered a $0.99 CDMA activation off their website (with free delivery, I felt this was a cost I could swallow if it doesn't work out!). The Nexus 6 IMEI doesn't get recognized as compatible on ST either which means, I suppose, that they can only activate Verizon-registered IMEIs.
Not sure how to proceed from here though. I have an iPhone 5S which is ex-Verizon (now T-Mobile) from which I could activate the ST service, after which I can put the SIM into the Nexus 6 to see if it works. There are no other options to the ST service I want, so changing service isn't an issue. Are there any other ways to approach this? Perhaps I should do what JustusIV is doing and register the phone with Verizon first?
dialanothernumb said:
First, thanks to the mod for moving this to the Q&A section! I will remember next time...
I actually decided that, if I can, I would like to move to Straight Talk with my Nexus 6. I ordered a $0.99 CDMA activation off their website (with free delivery, I felt this was a cost I could swallow if it doesn't work out!). The Nexus 6 IMEI doesn't get recognized as compatible on ST either which means, I suppose, that they can only activate Verizon-registered IMEIs.
Not sure how to proceed from here though. I have an iPhone 5S which is ex-Verizon (now T-Mobile) from which I could activate the ST service, after which I can put the SIM into the Nexus 6 to see if it works. There are no other options to the ST service I want, so changing service isn't an issue. Are there any other ways to approach this? Perhaps I should do what JustusIV is doing and register the phone with Verizon first?
Click to expand...
Click to collapse
Yeah, I think the easiest way for you would be to just activate your sim card in the iphone and then move the sim card to the Nexus.
I have verizon, and all I had to do was cut my microsim from my previous device down to nano size and put it in the Nexus. The only issue is, like they said above, MyVerizon registers it as a "Non-VZW Device" which can cause issues with making account changes. I'm interested to hear the results of the guy above that says he can fill out a form so it doesn't show up that way.
JustusIV said:
As someone who has done this... it causes other problems because you have an "unknown device" they basically wont let me me changes to my plan because of it. For example enable advanced calling. After *****ing at them for an hour someone said there is a form we can fill out to register your device on our network so it doesn't show that way.... they said it takes 1-3 business days to process and i did it on Friday. If it actually works i will make a post on it. to inform the masses.
Click to expand...
Click to collapse
This was a bust.... more miss information from the crap customer service.
Went through the same thing. Unless your imei starts with 99 it won't be recognized from vzw. However, all the features do work as advertised. I had no problem adding advanced calling 1.0 and changing voicemail options on my account. I bought the phone through a relative that was on t-mo in december. Been on vzw since.

N6 - Unable to make/receive calls (4G/SMS working fine)

Hi dear Developers,
Recently i've purchased an used Nexus 6. When i insert the SIM, it recognizes the phone carrier, i get 4G network working fine and SMS also. But i can't make/receive calls.
The previus owner sad that only a few carriers worked. I ignored it because i tought i could solve this by flashing the N6 stock image. But i already did that and the problem persist.
What could it be ?
I've already flashed :
5.0 (LRX21O)
5.1.1 (All carriers except T-Mobile US) (LMY47Z)
5.1.1 (For T-Mobile ONLY) (LYZ28N)
5.1.1 (For Project Fi ONLY) (LVY48I)
6.0.1 (MOB30D)
6.0.1 (MOB30I)
Please help me! I've spent more than 1 month of my salary.
Thanks to all! :good:
:highfive:
Was it blacklisted? Is it complete stock? I mean if you flashed complete stock then its probably a board.
Edit: did you wipe data and cache?
Sent from my Nexus 6 using XDA-Developers mobile app
biggiesmalls657 said:
Was it blacklisted? Is it complete stock? I mean if you flashed complete stock then its probably a board.
Edit: did you wipe data and cache?
Sent from my Nexus 6 using XDA-Developers mobile app
Click to expand...
Click to collapse
what do you mean with "blacklisted"?
Yes, I guess it was complete stock (I downloaded directly from google developers: https://developers.google.com/android/nexus/images).
I wiped cache and did factory reset after one of my many stock flashes.
If the original owner knew that the Nexus only worked on a few carriers, that is a sign that the Nexus' IMEI has been blacklisted on certain carriers in your area. In other words, the original owner neglected to keep up with the payments on his device, and thus the carrier has blocked the device's access to the network. While it could be a fault in the mainboard, the fact you can receive a 4G signal means the SIM card tray is functioning properly along with the radios, making it unlikely to be a hardware fault.
Contact your carrier. Give them the IMEI of the Nexus, and they will tell you if the device is blacklisted. If it is, find a different carrier or else try and get your money back.
marcosdv said:
what do you mean with "blacklisted"?
Yes, I guess it was complete stock (I downloaded directly from google developers: https://developers.google.com/android/nexus/images).
I wiped cache and did factory reset after one of my many stock flashes.
Click to expand...
Click to collapse
Yep just like Strephon said it is always good to do a swappa check before you buy. If its branded to a carrier which its not (being a nexus) then I usually ask the former carrier if it was blacklisted before I buy.
Sent from my Nexus 6 using XDA-Developers mobile app
Strephon Alkhalikoi said:
If the original owner knew that the Nexus only worked on a few carriers, that is a sign that the Nexus' IMEI has been blacklisted on certain carriers in your area. In other words, the original owner neglected to keep up with the payments on his device, and thus the carrier has blocked the device's access to the network. While it could be a fault in the mainboard, the fact you can receive a 4G signal means the SIM card tray is functioning properly along with the radios, making it unlikely to be a hardware fault.
Contact your carrier. Give them the IMEI of the Nexus, and they will tell you if the device is blacklisted. If it is, find a different carrier or else try and get your money back.
Click to expand...
Click to collapse
Is it possible to use 4G and send SMS even with a blocked IMEI?
I tought it wouldnt recognize my SIM if it was blocked.
There is any possibilities to remove my IMEI from the blacklist?
(I know it shouldnt help, my carrier here in Brazil is VIVO)
marcosdv said:
Is it possible to use 4G and send SMS even with a blocked IMEI?
Click to expand...
Click to collapse
No. And neither 2G nor 3G will function, so forget that.
II thought it wouldn't recognize my SIM if it was blocked.
Click to expand...
Click to collapse
You thought wrong. The SIM would be recognized, but it simply won't function.
IThere is any possibilities to remove my IMEI from the blacklist? (I know it shouldnt help, my carrier here in Brazil is VIVO)
Click to expand...
Click to collapse
Either pay the bill yourself, or get the seller to pay the bill. It's highly unlikely that the seller will pay up here, and paying the bill yourself is foolish. I would start looking at alternative networks to VIVO, assuming that VIVO has blocked your IMEI. The only way you will know for certain that VIVO has blocked the IMEI is by contacting them.
Strephon Alkhalikoi said:
No. And neither 2G nor 3G will function, so forget that.
Click to expand...
Click to collapse
So that is why I'm thinking thats not an IMEI problem.
I'm getting normal 4G signal. I can browse the web and send SMS too.
The only thing that I cant do, is send/receive calls.
Then you need to check the APN on the Nexus and make sure it is correct. Here is the one for VIVO.

Nexus 6: As in 6 hours of trying but still no service?

I recently tried activating a Nexus 6 from AT&T to one of my existing Sprint lines. After Sim card switches, BYOD to SIMGLW446C and lots of support from a knowledgeable in-store tech it was determined that my phone was confirmed "activated" but it would not connect to the network.
The tech discovered the phone did not have a MIN nor did it list my phone number in the phone settings. They could not determine where the error was stemming from but told me the IMEI and ICCID were accurate and we confirmed the phone unlocked through ATT. (Unlocked two days prior to latest attempt at activating)
Nobody seems to know what is keeping this phone from functioning properly. Any input is greatly appreciated as I would love to have it in service. I have it listed for sale as AT&T but am starting to feel skeptical if there is just something wrong with it and shouldn't be selling it off for someone else to be disappointed.
Thanks for reading
Sam
Pyrofreek9 said:
I recently tried activating a Nexus 6 from AT&T to one of my existing Sprint lines. After Sim card switches, BYOD to SIMGLW446C and lots of support from a knowledgeable in-store tech it was determined that my phone was confirmed "activated" but it would not connect to the network.
The tech discovered the phone did not have a MIN nor did it list my phone number in the phone settings. They could not determine where the error was stemming from but told me the IMEI and ICCID were accurate and we confirmed the phone unlocked through ATT. (Unlocked two days prior to latest attempt at activating)
Nobody seems to know what is keeping this phone from functioning properly. Any input is greatly appreciated as I would love to have it in service. I have it listed for sale as AT&T but am starting to feel skeptical if there is just something wrong with it and shouldn't be selling it off for someone else to be disappointed.
Thanks for reading
Sam
Click to expand...
Click to collapse
Ok... I'm sure you made sure the IMEI that is printed somewhere... is not blacklisted...
Go grab the factory images and flash the newest radio from it using fastboot... See if that works...
If not... Flash the whole thing... Image at a time and see if that fixes it...
Sent from my Nexus 6 using Tapatalk
There is this:
Thanks for the input. I flashed a new factory image and it authenticated to Sprint's network just fine. It still wouldn't let me switch and activate online but no other issues aside from that.

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