- 11-29-2012, 01:09 PM #1
I just turned Airplane Mode off on my phone and got an invalid SIM error (I don't recall the exact error, but suffice to say it wouldn't connect to the cell network). A reboot fixed it, although it showed the "No SIM" icon briefly upon starting up. Not sure if that's normal or not. Now it's working normally.
Has this issue happened to anyone else? Today's my last day to exchange the phone, so I'm going back and forth on it. Thanks in advance!
11-29-2012, 02:47 PM #2
- 8 Posts
It happened to me on T-Mobile. I reset it 3 times in one day to get rid of it. I went to T-Mobile later that day and exchanged it for a new phone and so far so good? Knock on wood. If you do go back to the store, make sure you do an exchange for a new phone, don't let the Reps try to replace the SIM card and call it fixed, they tried doing that to me and my 14 day return was a day away so if I came back the next day or two with the same problem I would have had to pay a re-stocking fee!
11-30-2012, 02:37 AM #5
- 2,777 Posts
Get you phones returned!! Its the start of a whole world of problems - you'll notice the phone will start rebooting and turning itself off a lot as well. Im on my last day of ownership with my first 8X - have been HTC's guinea pig for a month. They are sending me out a new one today.
- 12-04-2012, 04:21 PM #8
I was having the exact same issues, found this thread yesterday and decided to call Verizon to get the phone swapped asap. The tech told me I have 30 days since I'm on a business account, and had me try a full reset, which thus far (21 hours now) is working. I don't remember having the problem immediately out of the box either, so time will tell, but I expect to see the issue within a few days if it's coming back. I'll update here whether it worked long-term.
Hope this helps someone,
12-05-2012, 08:33 AM #9
- 3 Posts
I had this issue for about a week, and I fixed it and havent had it for 2 weeks since.
What you have to do is use the sim removal tool that came in your box, or you can use a toothpick or something thin to remove the sim.
Then take it out, wipe the contacts off, maybe blow in the port, and re insert the sim.
And that fixed it for me!
- 12-11-2012, 05:37 PM #11
I've had the same problem on my AT&T 8X, it's becoming more frequent too.
At first it was two or three times a week, now it's at least once day, sometimes more. It's a pain in the ***. I left Blackberrys to get away from the need to restart my phone everyday, only to come across this problem. Anyone have a fix other than switching out the phone?
12-11-2012, 07:33 PM #13
- 2 Posts
It's happened to me a couple of times now on my AT&T 8X. Reboot also fixes it, but very annoying. May have something to do with coming in and out of airplane mode, because both instances have been within a day or two of me getting off a plane. Any fixes would be appreciated.
12-11-2012, 08:21 PM #14
- 982 Posts
The same issue has happened on a friend's HTC HD7 (exactly the same, down to fixing it with a reboot). I fixed it by folding up a piece of paper and tightly stuffing it in right above the sim card when it goes in the slot (it worked for 8 months, but recently I've been told it has been cropping up again). Not owning an 8X, I have no idea how the sim card slot is, but I figured I'd pass along this info.
My assumption is that this is some sort of common issue with HTC devices, perhaps that the sim isn't touching the contacts the way that it should. I got the idea for the fix initially from reading about this same problem for some HTC android devices. If you're within warranty, I recommend exchanging it or getting it repaired though.
- 12-12-2012, 03:58 PM #16
Hello, I have had the Verizon HTC 8x. Im living in Helena Montana and am having a similar problem. At first it did not happen at all but after a few days it started to act up and say I had an invalid sim. I have noticed it only happens when im walking in between buildings on my campus. It seems to be happening in the same spot every time. From this I believe its a software failure with the connection going in and out of 4G and 3G, since Helena Montana is not fully 4G yet. I have also gotten the phone replaced, new sim cards, and the problem is the same. only recently the phone has been shutting off randomly. Im really hoping this problem gets fixed soon because I love the phone.
12-12-2012, 09:35 PM #17
- 21 Posts
Mine magically started doing this two days ago. I'm glad this thread is here.
I reset the phone and that seemed to fix it but it seemed to do it at random. I also removed the Sim card and thought it would be ok but still got the error today. I noticed that i actually had a dropped call yesterday which never happens in my house.
I'm hoping the OTA update addresses this but who knows. I tried switching today from airplane to normal mode and it worked fine.
I really don't want to swap the phone out since i didn't get it from verizon but i'm on verizon's network.
- 12-14-2012, 09:03 PM #18
After a SIM card replacement and another two tech support appointments at Verizon they are sending me a brand new phone. There was no single issue that would cause it, it was always random for me. If you take out the SIM card and put scotch tape over the gold chip it seems to help for a bit. Not a true fix though.
- 12-14-2012, 11:52 PM #19
My VZW 8X just did this tonight for first time. I know it was on. Playing xbox for a bit and checked phone and no response. (Hit power button to wake it) and check for messages. Held it down and got the vibration/bootup. It was OFF!!! I never shut it off.
After bootup, with in 30sec to minute got an Error that the SIM was not detected or something along those lines as mentioned above. Did another manual reboot and seem to be fine now. Had 8x since VZW launch day and no other issues.
12-19-2012, 02:21 PM #21
- 3 Posts
I had this same issue and my brother as well. He returned his phone for the Nokia 822. I tried the "SIM Shim" method while waiting for the supposed future update.
1.) Pop out your SIM tray.
2.) Take your SIM card out of the tray.
3.) Place 2-4 pieces of clear tape (Scotch brand or similar) on the back of the SIM card.
4.) Cut the excess tape from around the edges of the SIM card, and put the card back in the tray.
5.) Then put the SIM tray back in the phone. ( Mine pushed in very firmly. Not sure I'll be able to get it back out.)
Haven't had a reset or "SIM Card Missing Error" in over a week. YMMV.
Also, attempt at your own risk! Be carefull not to break your SIM tray.
12-22-2012, 07:47 PM #22
- 30 Posts
Has anyone here had their phone replaced and then experienced the Invalid SIM error again? I'm having the issue on my black Verizon 8X as well as the intermittent and random shut-offs, so I'm deciding whether or not I should exchange the phone or just wait for the firmware update headed our way within the next couple of weeks.
12-23-2012, 06:29 AM #23
- 25 Posts
My 8X had the reboot problem and would reboot anything from a couple of times a day to going a few days without rebooting.
But I never got the SIM card error.
Since the update, no reboots (Nice) but getting sim card error anything from 2-6 times a day.
Has any one else started getting the SIM error after the updates?
12-23-2012, 09:13 AM #24
- 14 Posts
This 1st happened to me with my wife's 8x.. took it to VZ.. they didn't want to replace phone, although their internal KB said to do so. So they replaced the SIM instead and said to see how it goes. Well it just happened again. They also suggested changing the mode from Global to CMDA/LTE... that didn't help.
A day later, my 8x started doing the same. CRAP!
Now what. I'm going to bring it in for replacement. The really crappy part.. VZ will get you a certified refurb phone.. that's irritating considering I had a brand new phone 3 weeks ago.
Anyone know what the cause it? There seems to be no real fix... popping out/in SIM doesn't fix it for long.. rebooting the phone doesn't fix it for long... Thing is, the phone was fine all this time until just recently.. is this a hardware or software problem? How many of you do wireless charging, could that be zapping the internals or SIM?
No updates have come to the phones yet, so I cant blame that...
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