p1000 baseband unknown - nothing seems to be working
I have a factory unlocked P1000 that recently started having some issues. When I first got it two years ago, I had flashed it with the following:
During all that time, everything was working fine everywhere I had been (Asia and North America), with at least three different SIM cards and carriers.
About three weeks back, I suddenly lost voice/data. At first, I thought it was a SIM/carrier issue, but some swapping with a friend revealed that it was my tab that was the problem. Searching here and elsewhere, all I could come up with was that my IMEI was showing as the generic 0049990106400 and not the one listed on the back of my tab. I had been aware of them not matching, but it had never caused problems in the past. I was able to confirm, however, that the radio/modem was still working. I could place emergency calls, I could see that the networks were there, I just could not connect to any of them.
In my attempts to restore the original IMEI, following a guide here, I managed to lose my broadband entirely. I have been researching and trying to get it back ever since, so far to no avail. Unfortunately, I haven't been able to find a copy of the P1000DXJK2/DXJJ2 firmware I used the first time. However, I have tried multiple stock ROMS, different tutorials, and most recently, flashing with Overcome 4.1. The result is always the same: everything works except for the phone. Phone, broadband, and IMEI list as unknown.
Model number: GT-P1000
Firmware version: 2.3.3
Baseband version: Unknown
Kernal version: 184.108.40.206 se.infra@SEP-52 #2
So, here I am desperately appealing for any help anyone might be able to provide. My tab has been my only phone for years and often my only internet access, so I am feeling pretty lost without it. I am fairly tech savvy and I follow instructions very well, but I have never really messed around much with Android, so I am hoping the experts here are going to be able to come up with something.