Iphone 5s cellular reception bad

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Eldon

4 posts

Wannabe Geek

#169713 23-Mar-2015 20:21

HI all,
I recently repaired an iphone 5s that had been dropped. I replaced the cracked lcd screen with a new one. All is working perfectly fine on it now except the cellular reception.
I bought a new Spark sim card from the store with a random number on it to test it.
One the top left it comes up with the carrier showing Spark NZ, but with the 4 bubbles displaying reception there is no indication that it is getting any signal.
I have checked the antenna inside to ensure it is connected properly and the solder to ensure it hasnt broken.
Everything else works fine on it. The headphone jack, charger port and the WiFi.
Just wondering if anyone technically minded out there would have any tips? It would be greatly appreciated.

Thanks

nitrotech

1285 posts

Uber Geek
+1 received by user: 168

#1266250 23-Mar-2015 21:15

Is the date and time correct?

In the about screen does it have an imei number?

Did you use anything metal on the logic board during this repair?

johnr

19282 posts

Uber Geek
+1 received by user: 2526
Inactive user

#1266252 23-Mar-2015 21:17

How could time and date impact reception?

nitrotech

1285 posts

Uber Geek
+1 received by user: 168

#1266262 23-Mar-2015 21:19

johnr: How could time and date impact reception?

If you pull the battery on an iPhone it will show no reception bars until the date and time are correct and the phone is restarted.

Google it - plenty of home repairers think they've stuffed their phones after repair

johnr

19282 posts

Uber Geek
+1 received by user: 2526
Inactive user

#1266281 23-Mar-2015 21:35

nitrotech:
johnr: How could time and date impact reception?

If you pull the battery on an iPhone it will show no reception bars until the date and time are correct and the phone is restarted.

Google it - plenty of home repairers think they've stuffed their phones after repair

Wow just wow! You learn something new everyday

Eldon

4 posts

Wannabe Geek

#1266301 23-Mar-2015 22:05

Thanks for the input. Yes, time and date are correct. I me is showing in about section also

nitrotech

1285 posts

Uber Geek
+1 received by user: 168

#1266310 23-Mar-2015 22:29

3g antenna connector is by the battery clip - the connector is easily damaged if it's looking OK then it could be a whole lot of things firstly look under a microscope to see if you've knocked any components off the board.

Eldon

4 posts

Wannabe Geek

#1266932 24-Mar-2015 15:48

I cannot see any other components off unfortunately.