Cellular Update Failed on iPhone

Same issue here on an iPhone X! Tried different SIM, reset network settings. Did all not work. Contacted Apple and it seems it needs to go to service

Worked without any issue until yesterday evening and then suddenly had this message on my screen. Mobile Firmware doesn't show anything under Info. I'm on 12.0.1

This is not a carrier issue! This is Apples update 12.0 sabotaging these phones!!!! The UPDATE is causing this!!! Do your research and READ what is happening here! This happened to me too and It is NOT a carrier issue even though it may seem like that is what the phone is doing! IT IS AN APPLE ISSUE DISGUISED TO LOOK LIKE A CARRIER ISSUE!. Apple should be sued.

Same problem, I signed up for iOS BETA program, I have an iPhone 7, 32 gb, version 12.1 (16B5089b), this has been occured 6 time in 4 hours, and signal (mobile data) comes and goes, I thought I finally fixed it with enable plane mode, then turn it off and then remove sim card, wait for three minutes and then insert sim card, I turned it on, disable plane mode and magically gets connected again, but in 5 minutes this problem happened again, first 4G text got removed, then then carrier name and again "no service" text again.

My carrier says is not a problem with signal, sim card or anything else realted to them, they says it has to be the phone or software.

Same here: 5s and showing "no service" in the upper right corner and this error message:

! mobile data update failed

your iPhone cannot make and receive calls or access mobile data until it has been updated"

after update to iOS 12.0.

What's going on??? I'm really p*ssed...

hello sir,i would like you to know that i had the exact same issue woth my iphone x, two days back the issue strted.iv tried every thing frok a hard reset to doing updates.sadly i restored my phone and now i cant get it activated.if you happen to go to an apple store i would request you to tell me their opinion about this .

thankyou

there is no issue with your sim, check your model number. there are certain model numbers that there is this known issue (cant connect to carrier). my phone started this Wednesday and apple support figured it out in 3 minutes this morning. the internal board is malfunction, apple is replacing my phone for free today because it is a hardware issue.

This is literally the same thing that happened to me, word for word. I have an iphone 7 and it is in repair right now for the same reason. Were they able to repair the phone, or did you have to get a new one?

Hi all,

I solved this issue.

. I got the same error in my iPhone 5s after 12.1.2 was released.

. I used a sim card of other mobile operator and "no service" message disappeared. I got signal again.

. I downloaded and installed the update.

. after that I just switched back to the original simcard and everything works fine.

My complaint is that I was forced to update my iPhone and that release is mainly for new models. I guess this issue is shared between apple and the mobile operators, in my case avantel in Colombia.

Did they actually repaired your phone without any money? Or did they just sent it out? If they send it out they will contact you via email stating how much this will cost you. Hopefully it’s not your case. Please keep me posted.

Perhaps you have to update carrier's settings.

Contact your carrier and ask them.

Regards

Giulio

I am using an iphone 7.
Apparently the issue is not with my carrier, the SIM is functioning on other phones.

Attaching a few screenshots for your reference.

This happened when i tried to erase and restore my iphone.

Hi Elp,

Did you receive a similar notification before going for a factory reset?

You can also check if you're eligible for this repair program:

iPhone 7 Repair Program for "No Service" Issues - Apple Support

Regards

Giulio

See if this applies to you: iPhone 7 Repair Program for "No Service" Issues - Apple Support