A few days after the iOS 11 update, my iPhone 7's cellular signal has been inconsistent stating "no service" or "searching" for long periods of time. This happens inside my home and outside. Usually I'm able to connect to my cellular network inside my house, but it's been malfunctioning lately.

TO FIX THE CELLULAR PROBLEM, I'VE TRIED...

• Restarting the iPhone
• Removing the SIM card, gently wiping the SIM card, and blowing inside the SIM card tray hole
• Resetting Network Settings multiple times, and turning ON and OFF Airplane Mode a numerous amount of times.
• Checking for a Carrier Update
• Fiddling with cellular settings such as turning OFF LTE or changing settings within the LTE settings.
• Fiddling with Date and Time settings because apparently setting the date and time automatically causes issues.
• None of these resolved the problem.

If I tried updating my phone to iOS 11.0.1 when the phone was not connected to a cellular network, even if I was connected to wi-fi, I was prompted with the Unable to Verify Update iOS. Yesterday, I miraculously obtained a cellular connection and was able to update my phone to iOS 11.0.1 thinking it would fix my cellular problem. It didn't. When I woke up this morning, the phone was back to "searching" or "no service" even though it was already connected to the Verizon network before and after the update.

During the day, my phone turned itself OFF and ON again prompting me to enter my passcode. This happened about two times within a four minute interval. A few minutes later, my phone turns OFF again and attempts to restart, but this time it never passes the Apple logo. It displays the Apple logo for a few seconds and then the Apple Logo would disappear for few seconds. It would then display the logo again and then disappear. This cycle never ends.

• If i try to put the phone in recovery mode while not connected to a PC, it shuts the phone off.
• If i try to put the phone in Recovery Mode while connected to iTunes, iTunes will prompt me to "Update" my phone stating that it will attempt to reinstall iOS while also keeping my files. Once it tries to install, the iPhone restarts showing the Apple logo with a loading circle underneath, which turns into the loading bar that shows up when you're updating your phone. The loading bar shows up for less than a second then the screen goes black, and the iPhone restarts and automatically launches Recovery Mode. The 4013 error is displayed on-screen and iTunes stops recognizing that the phone is plugged in. Keep in mind that the iPhone is still on the Recovery Mode screen. After reconnecting the lightning cable, iTunes then prompts that the phone cannot be "Updated" so the only other option is to factory reset the iPhone, erase all data and settings, and optionally restore from a back up after the factory reset. The same things happens as before.
• I've tried other programs such as 3u Tools to install iOS. I've tried reinstalling the new BETA iOS 11.1 and the more stable iOS 10.3.3. The same glitch happens where the phone displays the loading bar momentarily before restarting and heading back to Recovery Mode ultimately voiding the update.

Has anyone dealt with this or would like to provide any more things to try? I've never had a problem with an iPhone before when it comes to software, but could it be possible that this is a hardware issue?

⟐ Answer deleted Ocak 04, 2022 at 18:13 GMT-7

⟐ Answered Aralık 10, 2021 at 4:33 GMT-7

⟐ Commented Ağustos 14, 2019 at 14:45 GMT-7

Except from the Settings>General>about, And from the Sim card tray - Is there anywhere else where i can see the iPhone's 4 IMEI?

Thanks

⟐ Commented Nisan 15, 2016 at 15:38 GMT-7

⟐ Commented Eylül 19, 2024 at 0:34 GMT-7

I have some trouble with my iphone 11, this one reboot 2 or 3 minutes after starting. If i don’t use it after the starting, this one doesn’t reboot…. (I have replace the rear glass this one worked fine before replacement)

I try to :

Restore and Update iOS : No result !

Try to disconnect all accessoiries on the logic board : No result !

When i go to the log files, it look like one of the sensor is missing and make the phone reboot !

reason" : "(1 monitored services unresponsive): checkin with service: thermalmonitord returned not alive with context:\nis_alive_func returned unhealthy : current 3fe3bfffffffffff, mask 1ffffffffffff, expected 1ffffffffffff. Missing sensor(s): mic2 \nno successful checkins since wake (120 seconds ago)",

Do you know where is the sensor ? « MIC2 » Wich flex need to be replace ?

If you want i can share you the log files.

Thanks in advance,

 Best regards

⟐ Answered Ağustos 31, 2023 at 14:31 GMT-7

I am new to this site, but a long time use of the iphone 4 GSM 16GB. I have been using it since launch day in 2010. I have went through 2 devices and 2 sets of batteries. First device I had for 2 years, and had it replaced with my current device at the local apple store under apple care.

The second device, since I use the iphone a lot during my day, I charge it twice daily, even since new. I use the GPS, camera, and surfing a lot. Back in November 2013 I replaced the battery with a "new" one from a shady mobile repair shop. I didn't notice any gains in battery life. I kept using the battery until this month. Because I noticed significant deterioration in battery life.

Therefore I decided to set out on to replace the battery myself using ifixit repair kit.

But before I did, I did my research, and read about li ion batteries and charge cycles. Unfortunately apple doesn't allow us to know the current state of battery unless you jailbreak. I jailbroke my iphone, and installed applications that tell me the battery details.

The battery I had that was only 10 months old had 890 Charge CYCLEs!!! and already lost 30% of its useable capacity, meaning at full charge I was getting only 70% of what the battery originally had in capacity.

This angered me because I paid well over $30 to have it replaced.

I set out on google to read about the quality of ifixit batteries, because people buying batteries from amazon and ebay are having nightmare issues, with batteries failing and having charge cycles over 500.

I couldn't find any information for ifixit batteries. I ordered one anyways.

It came quite fast. I installed it (extremely easy) and ran the battery app.

I am happy to confirm that their battery was actually new, it had 0 charge cycles, and the capacity was showing 99.98% (like 1418 out of the 1420 mAh).

I thought this information might be useful for people who want to make an informed decision regarding iphone battery purchases from this site versus shady mobile repair shops and ebay.

Thanks ifxit!

⟐ Commented Ağustos 02, 2021 at 22:27 GMT-7

I recently broke my phone screen and got it replaced (not at Apple). The colors of my phone are all messed up now. The contrast + saturation of my screen is really high, and all my pictures look really ugly and distorted now. I tried fixing it in settings in color filters, but it didn’t work; the contrast and saturation are too high. Also my increase contrast is off. What do I do??

⟐ Commented Eylül 10, 2025 at 1:45 GMT-7

⟐ Commented Kasım 09, 2023 at 9:21 GMT-7

⟐ Commented Mart 26, 2023 at 9:00 GMT-7

⟐ Commented Eylül 01, 2021 at 4:18 GMT-7

Maybe an Apple lock when detecting an unoriginal screen? Don't know.

Please help. Thanks

⟐ Answered Haziran 01, 2021 at 23:11 GMT-7

. Please let me know what to do.

⟐ Answered Aralık 21, 2020 at 20:37 GMT-7

⟐ Commented Mayıs 20, 2019 at 22:28 GMT-7

⟐ Commented Nisan 19, 2018 at 22:34 GMT-7

⟐ Commented Şubat 11, 2018 at 5:30 GMT-7

My iPhone 5 always seems to say "No SIM" even when inserting several SIM cards and cleaning the tray and internals. I strongly believe this is a SIM card reader fault, hence please may I ask how I would do about de-soldering and soldering on a new SIM card reader on the iPhone 5?

I looked at several resources online and they have given me a general idea since there aren't many guides online, hence could I please ask you guys for more specifics on how-to? I apologise for the bother.

Thank you ever so sincerely! :)

⟐ Answer accepted Temmuz 20, 2017 at 5:33 GMT-7

⟐ Commented Temmuz 09, 2024 at 18:07 GMT-7

I have an iPhone 5s that keeps shutting down randomly, several times a day.

I have tried 2 new different batteries. But same problem.

When plugged in charger it starts again with a lot of remaining battery.

When replaced battery i did the battery calibration.

Draining the phone to 0 %, charge to 100 % and force restart.

Any ideas what this is.

I replaced the battery in the first place because i started have the problem with it shutting down a 30-40 % power.

Is this a software issue??

Best

Anders

Picture iphone 5s

⟐ Commented Ağustos 09, 2023 at 9:18 GMT-7

when i remove the charger it stays on for 20 seconds, but it's moving verry verry slow, it s like the battery not giving enough power.. after the phone shuts off, is trying to turn on by himself, apearing the apple logo and disapearing until probably drains all the remaining battery..

when i plug the charge, the apple logo apears and disapears couple of times and after 2-3 minutes the operating system starts normaly with the 1% battery(probably the battery is charging a little bit).

there are times when the phone starts with 100% battery but when i remove the charger, the same problem, it s shuting down after 20 seconds

the battery is new, but it s an aftermarket.. could it be something else beside the battery?

⟐ Answered Temmuz 19, 2023 at 4:14 GMT-7