stock CM11 'Insert SIM Card', custom CM12 (and others) works fine - ONE Q&A, Help & Troubleshooting

Got my new 64GB OPO a few weeks ago. It shipped with the oddball 28K stock and I've never gotten updates. So...
I've been trying to completely downgrade / stock flash my 64GB OPO starting with 22R. Everything works absolutely fine EXCEPT every signed CM11 (22R through 44S) I flash with fastboot I get no cellular signal (tmobile, works great otherwise) and an 'Insert Sim Card' error. If I flash anything with TWRP (ie custom CM11 / CM12 nightlies / Miui / OxygenOS / ColorOS / whatevarom) things work exactly as they should.
This isn't a sim card issue (tested my sim on another phone (works), tested another sim on my phone (doesn't work) - both results as expected). I also don't think it's a hardware issue with my phone as I do get cell service with every other custom rom I've flashed. I'm just not getting any sort of connection if I flash stock signed One Plus images. Maybe there was a hardware revision at some point? Maybe that's the reason for the 28K? [However there don't seem to be any full signed 28K stocks, and it didn't get updates when I had it to begin with, hence this whole quest]
Sacrilege I know, but I don't want root or custom recoveries or any of that stuff anymore. I just want regular OTA updates when they occur and a phone that I know is stock.
Ideas?

Related

[Q] [HELP] CM10.1 on K860 problems

Hi there
Im having trouble to get CM.10.1 working on k860. What happened is i downloaded the latest cm10.1 szb file and placed it in sdfuse after backing up all my files etc. Then when i flashed the rom- The phone allows me to use it without network coverage for a minute or two, then locks it. SIM lock- and my sim code does not work to unlock it.
The Overseas firmware rom works perfectly, and enables me to do all the things.. however, i want to switch to CM. i dont want to keep using it.
I tried to install the CM10 some time ago and I had the same problem, I thought it was a baseband problem that was related to CM programming. I cant find any details on how to unlock my phone. I dont think its locked onto the carrier because the first sim i used was a chinese sim bought in beijing.
Help.
Fakejameh

Can Xoom run without sim at all

I have had my original Xoom for a long while now - not sure exactly the version (601 rings a bell) but it was early in the very first release. ( it has 3g and wifi)
I've always had a sim card in it, however it was deactivated LONG ago, but still worked on wifi etc. My little fella uses it for simple games etc, but at some point the sim came out and we lost the little bracket thingy that it sits in - i believe that's needed right ? its been so long.
So today after numerous reboots, I simply could not get it factory reset, so I ended up following some great guides here to unlock then load the stock rom on there - I chose the Telstra AU version for 601 as it was the only version that sounded right for me.
That all went great and easy, however, without a sim, on startup im getting the "Tablet is not provisioned ... " error, and there is no way to unlock it.
So a number of questions - will stock rom simply not work at all without a sim ? I tried to 'fastboot oem unlock' and boot up like that to no avail.
If it won't work without a sim, is there a quick and dirty custom rom that is stupidly easy to install ? I like how easy it was to load the stock rom - if there is something like that great, otherwise the instructions i've seen for custom roms seem a little too much for my time.
Any pointers appreciated - i just need to get it back to usable for a 7 year old with games - it would be nice to install custom rom with latest android so that he can play some of the newer games, but not if its tricky and will take too much of my time - in that case i'm happy to just use stock if i can get it working without sim.
please can anyone at least advise whether this tablet with stock rom should work or not without a SIM ? (obviously 3G version AU)
arnies_fone said:
please can anyone at least advise whether this tablet with stock rom should work or not without a SIM ? (obviously 3G version AU)
Click to expand...
Click to collapse
The xoom 3G+wifi work perfectly with or without sim card.
OK

Check failed

I got this e3 that i flashed 3 different stock roms, and i can't get sim card to work on any of them. With or without sim installed i get a failed check picture and i can't use sim, tho other things work just fine. I have tried a central european rom, a rom made for my counrty, but im not sure weather the sim card is from that operator the rom is made for.
I took the phone form a frined to try and fix it since it was stuck in boot loop, so i've handled that and i'm not sure how to fix this :crying:
The roms we apropriate for the model, d2203, used the both latest one and the one before.
Did you resolve this?
I found that if you run flashtool on pro mode it will allow flashing of simlock.
I don't know exactly what's that but I hope it (and google) helps you

ROM Needed

Hello
My LG G5 broke and I need a phone to use. I have this old Moto G which works however reboots constantly. I want to load a new ROM however I have tried 5 of them and none of them will load
I am rooted with TWRP installed. I need a ROM that works with Canadian carriers on a G4 which has no MicroSD card and only 1 SIM card slot. I have been unable to verify which model this is as it reboots before I can get in to the Android Settings. When I load ROMS it keeps telling me I need a version meant for falcon_umts
I am looking for a ROM that is stable over something new. As long as the basic work (Wifi, Bluetooth, GPS, Camera, etc....) I will be happy.
Any suggestions?

T-mobile G7 Power on Verizon MVNO

Hello,
I recently got a G7 power T-mobile variant and was trying to get it working on safelink wireless a Verizon mvno. I have it network unlocked and bootloader unlocked and have been able to flash custom roms and my sim is detected but I can't seem to get any calls texting or data on it. I've been perusing the forum here reading everything I can on the issue and feel like I'm 90% of the way there but missing something. For anyone that has gotten Verizon working on their T-mobile G7 please help with how you managed to do it.
I flashed RR and then the Verizon modem but that didn't work. I'm going to try flashing back to stock T-mobile to see if I can get some connectivity.
Anyone have any suggestions?
Thanks
I have already flashed a custom rom to my phone that hasn't had connectivity and the issue is that the custom rom you flashed to your phone doesn't have your regional code for ur area and the tz.mbn file needs to be updated with your area's cod or just re-flash another custom rom because it's rare on how many times I have had to erase completely re-installed new and different Operating Systems to my phone just to learn and try different Roms and only twice have I got a Rom that doesn't support my data.
So just try a different rom from RR and it should be able to work? Should I do a comletely clean install like, wipe system then flash or flash stock rom, then do custom rom over the top?

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