Database Info

Have you lost all data? Try this it worked for me!

I lost all data on my phone today but was able to find a fix incase I am not the only one
I have been running Liquid Rom and I have not changed anything for the past few days but suddenly lost all data 3G and 4G.
Verizon support was no help however I was able to fix it by doing the folowing.
Dial ##778#
hit Call
Hit Edit Mode
Type PW of 000000
Hit OK
Hit Modem Settings
Look for REV A and hit it
Select Enable instead of eHRPD
select ok
Hit Menu
Hit Commit Changes
Restart
Got Data Back and am still able to do Voice and Data at same time.
I was told there are some problems with verizons new eHRPD network which is supposed to be what handles Voice and Data Simulcast but as I said I can still surf and talk at the same time.
Just posting incase anyone else runs into this problem.
Update... Verizon sending new phone as I am tired of not having 4g I will post more when I get it

Already done.
Sent from my ADR6400L using XDA Premium App

i just wanted to visit forums and post my findings. Yesterday i lost all data on my device and i tried everything to get it back. I am rooted and after a flashed a kernel everything just dropped. i could only make phone calls and that was it. i tried switching roms, kernels, data/factory resets(including wiping cache and davlik) and with no avail i was stuck. i tried the ##778# method and eventually got 3g back but this should only be a temporary fix because you can lose 4g alltogether and may not be able to simultaneously use voice and data(on other threads i've seen one person say he has been able to i think that may be this thread). this method is known to verizon but is not condoned by them. Anyway what i had to do was take my device back to stock, no root, with s-on, and factory reset my device in bootloader in order to get my signal back. I since have re-rooted and restored a nandroid and everything is still working, so if you run into this issue and it is not on verizons end, this may be your only option. yes it is pita, but so far it is the only option other than the ##778# method and that should not be a permanent fix. here is the back to stock method by jcase
http://forum.xda-developers.com/showthread.php?t=1009423
op says ##778# but it doesnt work on my device. i have to use ##778 so i guess phones may vary
i also wanted to state that there was no network issue in my area at the time this happened

detox246 said:
i just wanted to visit forums and post my findings. Yesterday i lost all data on my device and i tried everything to get it back. I am rooted and after a flashed a kernel everything just dropped. i could only make phone calls and that was it. i tried switching roms, kernels, data/factory resets(including wiping cache and davlik) and with no avail i was stuck. i tried the ##778 method and eventually got 3g back but this should only be a temporary fix because you can lose 4g alltogether and may not be able to simultaneously use voice and data(on other threads i've seen one person say he has been able to i think that may be this thread). this method is known to verizon but is not condoned by them. Anyway what i had to do was take my device back to stock, no root, with s-on, and factory reset my device in bootloader in order to get my signal back. I since have re-rooted and restored a nandroid and everything is still working, so if you run into this issue and it is not on verizons end, this may be your only option. yes it is pita, but so far it is the only option other than the ##778 method and that should not be a permanent fix. here is the back to stock method by jcase
http://forum.xda-developers.com/showthread.php?t=1009423
OP you need to remove the last # on the ##778# it should be ##778
Click to expand...
Click to collapse
no it is ##778# then dial...not ##778. if you try ##778 with out the last pound, it fails...

nosympathy said:
no it is ##778# then dial...not ##778. if you try ##778 with out the last pound, it fails...
Click to expand...
Click to collapse
thats odd cause mine wont work with the last # I could only do it with ##778
edit: just tried again and mine wont work with the last #

I have tried this on several roms and definetly seemed to help me. but i have noticed certin roms this no longer works (such as the latest virus rom)

Verizon sent me a new phone. I set the rev a back to ehprd on my original phone then removed the battery and sim and placed into new phone and instantly had 4g back. So just to see I put battery and sim back on rooted original phone and to my surprise 4g was back. Will post more after I run it for a while. Perhaps the sim needed reprovisioned?
Sent from my ADR6400L using Tapatalk

denonlake said:
Verizon sent me a new phone. I set the rev a back to ehprd on my original phone then removed the battery and sim and placed into new phone and instantly had 4g back. So just to see I put battery and sim back on rooted original phone and to my surprise 4g was back. Will post more after I run it for a while. Perhaps the sim needed reprovisioned?
Sent from my ADR6400L using Tapatalk
Click to expand...
Click to collapse
This is true. The people at verizon did this to my phone once when I had the same problem.

[Q] Help! No Service / Can't search for networks!

Oh boy. I've done something ..interesting.. to my new nexus s. Could you guys help me?
Okay, So I've been running miui for about a month now, and today I decided I will try the oxygen rom, along with a new radio (K3B). I flashed the radio over miui and all was fine.
Next I wiped and installed oxygen. No service. I couldn't even view available networks. I had a play around with the service menu (*#*#4636#*#*) and changed regions etc, but no luck.
The next thing I did was to try and revert to stock, by following the unlockrs guide (http://theunlockr.com/2011/01/20/how-to-unroot-the-nexus-s/). This seemed strange to me, as it was only a nandroid backup. Now I'm on 'stock' with no cell radio and a small wifi only tablet.
So, my real question is, can I fastboot or ODIN back to complete stock (radio, system, recovery, etc) or are there any other fixes for this problem?
Thanks! I'm desperate :S

Which Nexus S you got? Which ROMs you flashed exactly? Which radio did you flash, never heared of KB3b?
I'd assume you have a i9020T (since you used the GRH78 nandroid backup)? Then you could use the ROM in my sig to flash back to stock.
However, I never flash any nandroid backup that isn't my own, especially if they are crossing release numbers, eg 2.3.5 to 2.3.3.

I have the i9020T, flahsed the XXKB3 Radio (see here: http://forum.xda-developers.com/showthread.php?t=1116884).
I don't think flashing back to stock helps too much

Go here and get yourself a flashable full ROM for the i9020t, it will include a fitting radio (and a stock recovery). Remember to wipe everything before installing the ROM via cwm recovery. I'd also format stuff in "Mount and storage" (except sdcard for obvious reasons ).

Tried that. No success. I also used ODIN to revert to stock again. No success. Tried all the radios available for i9020t, none of them work.
My IMEI is intact still, my baseband /should/ be working, I really don't see anything more I can do except assume its a hardware issue. I'll give samsung a call now and see what I can do. Thanks for your help.

Maybe your carrier banned your IMEI for w/e reason.
Sent from my Nexus S using XDA App

I've tried multiple sim cards, and even if my carrier did block me (why would they do that?) I would still be able to at least view other network operators (and mine) in the Mobile networks menu.

Well multiple sim cards NOT working in your device could mean your IMEI is banned. Carriers block IMEIs for several reasons, stolen phones, contract abuse, carrier crossing, unpaid bills, etc etc.
Contact them and ask. If they didn't block anything you're still one step closer to solving the problem, next step exchange the SIM card, final step would be to contact Samsung and have them check for faulty hardware.

I'm starting to think thats the case.. My original sim card is dead and won't work in other phones now.
What I really don't understand is why they would blacklist me. I've been with my carrier for two years, since they started up. I'm a prepaid customer, so no unpaid bills. My phone is brand new, purchased it at Best Buy in the US four weeks ago
Maybe they were mistaken? I'll call them later in the day.

Ugh. I talked to my service provider, they said they couldn't do anything and were very unsure. They handed me over to samsung, who were unbelievably unhelpful and told me to turn my phone off and on, and that they couldn't do anything more. Just sent an email to my service provider hoping I get someone more 'higher up' who can deal with it.

[Q] NO 3G/4G after odin flash of EP4D

I finally got around to flashing EP4D last night and every since I have no 3G/4G data. I tried several flashes with no luck. I tried to revert back to what I had still no data. I tried to go back to EE4 with pit file and still no data. i tried to flash just modems and still nothing. Took it back to stock EE4 and allowed to update to EP4D and called Verizon. They reset something and had me reboot and call #882. The message says you are successful..... NO data still. Took it to store and they said it was defective but because the water strip had a smudge from when I had the battery out it will not be covered under warranty. I have ODIN'd and CMW numerous times with this phone and never had an issue. I don't think it is defective as it was working fine before and everything still works fine now except no data connection.
Any ideas?

not your fault. 4G is dead across the country.

tlabrown said:
I finally got around to flashing EP4D last night and every since I have no 3G/4G data. I tried several flashes with no luck. I tried to revert back to what I had still no data. I tried to go back to EE4 with pit file and still no data. i tried to flash just modems and still nothing. Took it back to stock EE4 and allowed to update to EP4D and called Verizon. They reset something and had me reboot and call #882. The message says you are successful..... NO data still. Took it to store and they said it was defective but because the water strip had a smudge from when I had the battery out it will not be covered under warranty. I have ODIN'd and CMW numerous times with this phone and never had an issue. I don't think it is defective as it was working fine before and everything still works fine now except no data connection.
Any ideas?
Click to expand...
Click to collapse
There is a major nationwide data outage going on right now. It started in spotty places last night and spread throughout the day today. They finally acknowledged it about an hour ago. Wait until all this is over before assuming anything about your phone.

tlabrown said:
I finally got around to flashing EP4D last night and every since I have no 3G/4G data. I tried several flashes with no luck. I tried to revert back to what I had still no data. I tried to go back to EE4 with pit file and still no data. i tried to flash just modems and still nothing. Took it back to stock EE4 and allowed to update to EP4D and called Verizon. They reset something and had me reboot and call #882. The message says you are successful..... NO data still. Took it to store and they said it was defective but because the water strip had a smudge from when I had the battery out it will not be covered under warranty. I have ODIN'd and CMW numerous times with this phone and never had an issue. I don't think it is defective as it was working fine before and everything still works fine now except no data connection.
Any ideas?
Click to expand...
Click to collapse
Most likely do to the 4g outage. The only way you would lose your data from an Odin flash is to check the EFS CLEAR box on Odin. So as long as you didn't do that, I wouldn't worry about it. Your data should come back!
Sent from my Gummy Charged GBE 2.1 using XDA App

They had some issues with some of the central switches in which they weren't authenticating SIM cards correctly.
Data connections (1X, 3G CDMA, and 4G LTE) are authenticated using the SIM card so if they have issues authenticating SIM cards data connections won't be established. Phone calls and SMS messages, though they use CDMA, that is authenticated via the IMEI code which is unique to the phone and that they have no issues authenticating so that's why people can continue to make phone calls yet have no data.

trparky said:
They had some issues with some of the central switches in which they weren't authenticating SIM cards correctly.
Data connections (1X, 3G CDMA, and 4G LTE) are authenticated using the SIM card so if they have issues authenticating SIM cards data connections won't be established. Phone calls and SMS messages, though they use CDMA, that is authenticated via the IMEI code which is unique to the phone and that they have no issues authenticating so that's why people can continue to make phone calls yet have no data.
Click to expand...
Click to collapse
THANKS....It started working this evening. Its amazing after spending an hour on the phone with Verizon and and hour at a store neither could tell me this. The only thing I got out of either is the Galaxy Nexus was delayed another week until 12/16.

Please use the Q&A Forum for questions Thanks
Moving to Q&A

[Q] Phone wont stay on LTE

I recently switched from straight talk to verizon's own pre paid plan after being fed up with straight talk. When I first got the service active everything was fine. I flashed the CM11 AOSP rom snapshot. I then proceeded to try and update my roaming capabilities by dialing *228 which the automated system told me was successful and ever since then my phone will not stay on LTE. It will only goto 3G. If i try to force the lte only mode then my data will work but i wont be able to make calls. I have tried going into stock recovery and resetting factory to try and clear the NV and flashing both the kitkat and lollipop RUU to no avail. Any help would be greatly appreciated.

You might have damaged your Sim card by dialing *228, well I don't know about damaged, but I know Verizon phones locked to their network that uses 4G LTE Sim cards are blocked from dialing *228 because of the reasons you described.

rigbyrobot said:
You might have damaged your Sim card by dialing *228, well I don't know about damaged, but I know Verizon phones locked to their network that uses 4G LTE Sim cards are blocked from dialing *228 because of the reasons you described.
Click to expand...
Click to collapse
So maybe i need to go get a new sim card then. Thats what i figured hopefully i can get to the verizon store before work and grab one.

Hey,
Were you able to get it working again?
I have the same issue. I dialed *228 like an idiot and my phone activated on 3G and won't get anything else.
I've had Verizon reset the connection on their side and I went to the store and picked up a new SIM but I still can't get LTE. It's driving me crazy. I've tried restoring to a prior backup, factory resetting the phone. Nothing gets me LTE.

Credo Mobile ROMs

Hey guys, I've been searching for a new ROM for a while now, I was running pure nexus on 6.0.1 but obviously that's been updated and that's where I ran into my issue. Pure nexus seemed to work fine for me and all was well but, slowly as the ROM became outdated and everything moved onto 7.0 my battery life and quality seemed to get worse and worse. Eventually my phone was randomly turning off at 60-70% battery. So, I figured it was time for a new ROM however, when I installed the Nougat version of pure nexus I was unable to receive cell service and data. Now I'm assuming this is due to the fact that my phone is tied to Credo Mobile, for a carrier and they have some funky proprietary firmware they put on their phones. So my question is, does anybody that is on Credo know of any ROMs that might work on our phones, and/or does anybody know what could possibly be going wrong? I've tried quite a bit of troubleshooting, flashing the stock bootloader and radios, editing my APNs to match the ones I could find online for Credo, I've tried multiple different ROMs including OctOS, Carbon, Zephyr, CM, and many more, and of course the other troubleshooting options such as updating recovery, supersu, etc. I am completely stumped, and any help is appreciated. Thanks!

Every nexus phone comes unlocked even when purchased from a carrier, so there should not be any proprietary firmware on your phone from the carrier. My guess is your EFS got messed and thats why you arent getting any cell service. Goto settings and check if your IMEI is displayed. If it is a 0 then your EFS is the problem. Also did you revert to the latest stock version and see if the problem still existed? It can be found here : https://developers.google.com/android/images#hammerhead

I'm fairly certain my service still works on stock, I haven't checked in a while, but I'll do that just to be sure. I doubt all of that really helps but I figure you know more than I do haha. To further explain I also seem to be able to proc my service to work when I switch airplane mode off and back on again, but only for a couple seconds and it craps out after that. It at least detects the SIM card, but no service whatsoever. I'm thinking it could possibly have something to do with the APNs but, I've tried so many different combinations of different Credo APNs online I'm not sure that's actually what's wrong.
Edit: I should also add that on the Credo SIM card under mobile networks in the settings there are carrier settings where you can choose to update your PRL and update your Profile. When I do this the PRL successfully updates but the profile update gets stuck on "The network is preparing your services."

Okay so I reverted to stock and after successfully updating my PRL and Profile I was able to verify service and data are working perfectly. Getting an average of 4-5 bars.