So I tried several ROM (CM13, Google EUI, Stock) when I tried to revert back to stock. Immediately after rebooting I noticed an issue: the bootloader was in Chinese. I thought it might be fine, but when the phone booted up, the SIM (AT&T) was not recognized. The option for "Mobile Networks" is grayed out and even CM (from a backup) has this issue now. I already flashed the US Modem zip and it is still occuring. Anyone able to help?
Update: Fixed 100% by flashing old stock firmware of EUI and OTA updating to 20s. Bootloader and modem fixed.
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After trying to install few custom ROMS namely DR. Ketans and SimplRom I experience SIM removed error problem.
The flashing goes fine with full factory reset (only internal SD is not wiped), I enter the PIN when I'm asked for it. The SIM is unlock but when the phone registers on the network it gives SIM removed error and forces a reboot.
I also upgraded the bootloader and the modem to the latest versions BL_N910FXXU1BOD2 and CP_N910FXXU1BOC4 but the problem remains the same.
When I restore back to the original ROM (backed up by TWRP) everything works fine. If dirty flash custom ROM over it again there are no problems with the SIM card.
The only conclusion is that T-Mobile has some additional software installed.
The phone is SM-N910F bought from T-Mobile. It has T-Mobile branding on boot and shutdown.
Does anyone now anything about this ?
To update it with my own research.
Apparently the SIM card is lock to Macedonia region. MBM CSC. When installing custom ROM the CSC gets changed and the phone rejects the SIM.
In an effort to resolve this I've flashed DE DBT CSC ROM and the phone won't accept my SIM card.
Currently I'm downloading the original T-Mobile MKD firmware and I hope by restoring it that I will be able to use the phone again.
Also since I paid for the phone in full I intend to contact T-Mobile tomorrow and ask them to unlock my phone.
Will write what comes out of this. Don't want someone else to lose their nerves as I did today
Definitely the issue was in wrong CSC. I've downloaded the original firmware and everything worked again.
But I couldn't stay put and wanted to flash a custom ROM so I went with http://forum.xda-developers.com/note-4/snapdragon-dev/rom-bob4-devbase-multi-csc-safe-bloat-t3033881.
It's a great base ROM stripped of Knox and de-bloated. Most importantly it keeps your current CSC intact.
The procedure was:
Flash original firmware with Odin,
Root with CF-Auto root
Flash TWRP recovery with Odin
Reset data so that it completely goes stock because flashing the original firmware doesn't reset data
At this point I made full nandroid backup
Flash ALEXAND ROM
Uninstall additional bloatware
So far it's working fine.
I hope that this will help someone.
My vs980 has no signal and i cannot change the network mode from GLOBAL in settings. I was previously on an older unofficial cm13 with working tmobile service, then i stopped using the phone and came back to it a while later and flashed the latest crDroid nightly (12/12/15) and never looked at the phone again until now, when i realized there is no signal.
I have tried different inactive Verizon and t-mobile sims, yet the phone still says no service emergency calls only, and network is stuck on global. I have tried a modem and efs restore through twrp, and even flashing back to stock to no avail. The phone does have an imei still, which is a good sign however i am all out of ideas for fixing this.
Try flashing stock KDZ. If it won't help, then very well could be hardware failure.
Try flashin stock kdz (maybe your imei has been deleted) ( and sorry for my english?)
Hi
I've noticed people with similar problems to me but none of the fixes seem to work.
I have an EU Moto x style. I unlocked the bootloader and rooted it. After this, the WiFi stopped working.
I tried reflashing the modem (EU version) and this then resulted in the Sim no longer being recognised as well as the wifi continuing to not switch on
So I then tried flashing the lollipop stock recovery rom for EU style. It boots up ok but still no sim or wifi.
Kind of at a loss what to try next. I would have thought the original ROM would return it to the original state but it hasn't. Also tried factory reset, clear cache etc
Any ideas?
I would suggest trying to flash a Moto X Style factory image using your PC. That I believe will take it back to stock. Try out your sim and WiFi then try again...
Sent from my XT1572 using Tapatalk
Hi guys, i have a xt1626.
And for some reason last night I lost my network signal and SIM 2 status.
Well... I made a factory reset and flashed lastest stock rom (december 2017).
But it still not work.
SIM 1 is working IMEI is correct. but no signal. Only showing "No Service". SIM 2 is missing.
When I see baseband it shows lastest baseband but not with "DSTV RET_BR..." on final. It show "DFLT_FSG".
I flash modem, install others rom (custom) but nothing works.
There is a chance that make it working again?
Are you sure you have flashed the correct version of stock rom.??? This happened to me only when I flashed the ROM for another variant!
I flash this one: https://forum.xda-developers.com/moto-g4-plus/how-to/stock-rom-npjs25-93-14-4-march-1-t3608138
After some google search I found the problem.
The mobile radio is not turning on. Like if the phone still in airplane mode.
i don't know what i have to do. No looks like HW problem cause sim card is recognized
There is a place wich i found specific firmware for xt1626?
firmware.center only have universal firmware.
That link doesn't have the firmware for 1626.. there was a file factory link that had all the variants stock ROMs.. So if you find any nougat version you can flash that barring bootloader and gpt.bin as downgrading them will result in a brick! And then take OTA!
Okay here's the deal, I unlocked my phone and tried to flash a custom rom but after many failures to boot with a couple different roms i went back to stock using miflash. Everything was going fine until i noticed some interesting problems such as a couple cores on the processor would spike to %100 for no reason and with this would come an obvious "skip" in the rom, as well as the device not being able to detect my sim card and the IMEI info screen showed zeroes or unknown for everything. After just dealing with it for awhile i found the 8.0.0 beta edl file by turkeydevs and decided to flash it (note: the edit had said the us modem was included at the time but was changed soon after). Afterwards all was well except it woudn't connect to cellular, IMEI info showed up and my sim card was detected. I checked the post a week or 2 later after using my phone without the skip issue and saw that the edit was changed so i flashed the A2017U modem referenced in the post and the problem was back so i reflashed the included Chinese modem and it was fine again. i recently went back to stock(B35) again and the issue was back, so i tried flashing the chinese modem for the rom and it went away again. Has anyone ever encountered this before? And if so, how the hell do i fix it??????