The Samsung Galaxy S4, model i9505, features a 13-megapixel rear camera, and a 5-inch 1080p display.

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Not registered on network

Got an S4 here and it is not blocked. IMEI is checked and is on O2. With a sim card in it has no service (recognises sim and loads voice mail) and just says not registered on network.

things i've done

- factory reset / cache wipe etc

- messed around in network settings

- flashed a different ROM through Odin

i am thinking it maybe hardware or antenna or something? i am not sure as it gets full wifi signal.

any ideas

Answer this question I have this problem too

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3 Answers

2 things come to mind assuming the phone has never been opened:

Lost IMEI, bad SIM reader. S4s are known for both issues. The lost IMEI is a software issue and the SIM reader is hardware. The SIM reader can usually be fixed with a simple solder reflow. Its as basic of a solder job as you can get. The lost IMEI is a bit more complicated, so here is a link to the guys who know their stuff talking about it:

http://forum.xda-developers.com/showthre...

My guess is since you are a rooter (I spent years in that world...no disrespect), you managed to lose your IMEI. With Samsung phones, its only a matter of time before this happens if you root. I had it happen once back in the S2 days and I freaked out. Turns out it wasn't that hard to fix.

Check out the XDA thread and give us an update.

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The phone had never been rooted before. I flashed a stock ROM in hope something may of been corrupted in the software. Now the baseband/IMEI is null and it wasn't before. The phone hadn't been rooted or anything prior to this and IMEI/baseband was present.

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Recovered the IMEI and baseband... recognises sim again but still no service. I am going to try and replace the port. didn't think it was a common issue

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So almost for sure a SIM reader issue. You can usually reflow them and get them working.

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My Galaxy S4 was just working now it shows an error message "not registered on network" when i check IMIE number by *#06# it shows the different IMIE number as the one at the back of the phone please help

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Use Samsung Switch (new software) on PC and restore your firmware

using your serial number from the sticker on back of phone, that will restore your IMEI to original and restore stock firmware

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i hope this help you try it :

10 ways Fix not registered on network error for Samsung galaxy

mywikispace.com/not-registered-on-network/

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David F will be eternally grateful.
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