Please help, completely lost cellular data

:(
10.2.1.1055, SQN100-5 unlocked running on AT&T, no issues for 5 days - data was up with LTE.
I was debugging a problem I had with half working MMS and a member suggested rebooting the phone without SIM card.
After I booted back up with the SIM, I couldn't connect to LTE, than I went to settings and I saw - "Voice Only" and AT&T logo diapering every 3 secs. On the home screen, every 3 seconds it says searching for network under network name, although I am connected to it.
Things I tried so far in this order:
- Reboot
- Reboot again without SIM
- Hard reboot (Vol+ Vol-)
- Checking in engineering screen and manualy setting to LTE, resetting APN name + reboot
- Re-flashed with 1055
- Wipe
- Re-flashed with 1055 again
- Active T-Mobile SIM card
- Re-flashed1056 radio only
- Flashed 1804 radio (no calls with it obviously)
- Flashed back 1055

Still no data :(
Next thing to try is to flash previous firmware, waiting for 1803 to download (MEGA is slow).
I always though secure wipe+flash wipes everything out but boot loader - obviously not.
:crying:
If anyone has any suggestion, please share.

OMG
Just flashed a previous OS that I had used for months and I have the same problem - NO DATA.
Did I just half bricked my phone?

- Verified my SIM has data on different phone.
- Just did Reload via BB Link still no data
:crying:

Anybody heard of anything similar?

Saw this in another thread about similar issues and hope it helps...

Originally Posted by nck20

I got the next tip as a maybe solution for the no data/blackberry service problem:

Go to settings, click about, click category, click network, click the three dots on lower right, tap register Blackberry. it's what I always do and works for me. wish I had a q to try this out on. thanks for the leaks BL, hoping and praying that it will come soon to my 3.

Haven't tested it myself yet, maybe someone could and tell if this works?

Credit to nck20

Posted via CB10

FIXED :party:

How:
Engineering screen -> 3GPP-> Utilities-> PS ATTAC - MUST BE ATTACHED !!!!!!!!!
I have no idea how that got changed though.

Originally Posted by djsvetljo

FIXED :party:

How:
Engineering screen -> 3GPP-> Utilities-> PS ATTAC - MUST BE ATTACHED !!!!!!!!!
I have no idea how that got changed though.

What do you mean 3Gpp? And utilities??

Posted on my Z10 via CB10

Originally Posted by GS51

What do you mean 3Gpp? And utilities??

Posted on my Z10 via CB10

Not sure how to answer you here. Perhaps you don't know what the engineering screen is and you shouldn't mess with it.

Posted via CB10

I had the same problem so I turned off 3g and started using EDGE only
After 1 day turned on the 3g and it worked
I dont why or how
Just give it a try

Posted via CB10 usinf my Awsome Q10

Interesting. Right now, it is partially fixed - if turn off mobile networks and turn it back on, I have to go through engineering screen again and "Attach PS".

I will try your suggestion.

Posted via CB10