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"No Sim" ?!?!?!?!?!?!?!?

Hi guys,
using this device for a couple of month now without problems
today when I was driving I guess I pressed something wrong 'cause the phone network settings popped and I accidentally chose the wrong provider and now the phone says there is NO SIM!!!! ahhh
Tried shutting it down, restarting it, taking battery & sim out, resetting the phone for yesterdays settings, resetting it to manufacture settings and nothing helped still a message saying NO SIM
so.......... I got to options either the sim went dead in the middle of the day 'cause I told it to use a different provider then mine or the device is a goner.............
tried installing an old sim (not 3.5G) and it still said NO SIM
what say u ?
oh and pls help me
thanks

have you warranty for your phone? looks like you have hardware failed.

well I think the device is in warranty (two and a half month old) the problem is that it was a prize in a competition in the grand nation of america and we are far away from there.....
could it be malfunctioning in the software ?
I am upgrading the rom now maybe it will reslove itself

well updating the Rom to the latest with WM 6.1 didnt solve my problem
is there anyone here who has a similar problem with this or any of HTC devices (Lost the ability to recognise SIM cards) ??????

I've seen a few posts on this forum, complaining on a SIM troubles. If i remember correctly, the reason has been a bad SIM holder socket or something similar. Try looking for those forum threads for more info.
Anyway, the first thing i would probably try is carefully cleaning the SIM socket contacts as well as the actual SIM card contacts with alcohol or something, just to make sure it isn't just a bad contact.

I have been there. My device has been repaired twice and works fine now. The last repair concerned the socket indeed. Maybe that's your problem as well, so check:
- does your SIM work in another mobile?
- does another SIM work in your TC?
- did you clean, reseat your SIM card, try a few times!?
Good luck!

I've polaris too and i've already replaced the sim socket, which malfunctioned..2 weeks after replacement weird things started to happen. I would loose coverage while having a conversation in a place, where all bars are full. Then, after restarting the phone it would show that no sim is inserted AND here's the funny part, after the next restart, the device would return to normal. I could make calls for another day and then it goes again..Right now a week has gone by while i'm restarting my phone every day. The problem is, that right now i need to restart my phone 3-5 times for it to start working normally again (without saying that no sim is inserted).
I can't work out why would this be happening, because if it would be a bad socket, i couldn't use it again after restart, but i CAN.
Can anyone give me advice? Maybe there's a virus from which you can't recover just by flashing the rom

I had the same issue! Therefore I had the phone 3 times in repair under warranty and the issue wasn't rapaired until the third time! All together the phone was in repair over more than 2 months!
I'm pissed off on this lousy service at HTC!
I'm hoping for you not to have such a misfortune then I...

I had the same problem after dismantling.
For me it was that the SIM cable that is going to the motherboard was way to inward. I just withdraw it a bit and that did the trick.

try to install new radio..
if still doesn't works, maybe ur htc hardware problem

I agree with wakhairul2,
if it's not the Radio Rom (GSM depends from it) so it's the hardware!
if it's the second, this is common, Simcard Holder Flex for the Touch Cruise fails easily! but it's also very easy to find a cheap spare..
Anyway, if you have warranty and is less costly then go there..
Else, for a new Simholder hardware check the ebay, Click here to view
You can find for lower than 15 Euros.
Good luck

Theory of one potential cause of freezes/reboots...

So I'm sure that apps have something to do with some of the issues people are having but I noticed that nearly everytime my phone was freezing with the screen off or rebooting it was on WiFi. This last weekend I went to a friends wedding and I used wifi like crazy including wifi calling. I didn't change any apps or software on the phone and although I used it the same way the phone was super stable. It lasted 3 days without a reboot and guess when it finally froze? When I was back at home on my wifi.
My wifi used to be mixed mode n and g. I've now switched to g only to see if that will help since most of the hotel and public wifi spots I was using were g. Speeds are very fast still so I'm not losing out much. I've also noticed battery life better on g only.
I'll test it out for a few days and report back but wanted to share. Anybody else having issues should try either not using wifi at all or switching to a g only network if possible.
Crossing my fingers.

Thats a good theory... I connect to wifi daily, but only g not n.. And I haven't rebooted yet...

Interesting thought. My first one rebooted/locked up and it had nothing to do with wifi. I never even enabled it. It was just a bad evil phone possessed by the devil. My new phone works great with both wifi bands enabled on my linksys wifi router.
For those still having weird stuff happening...swap the thing out!

I hardly use WiFi and my reboots only occurred on the leaked Gingerbread. After the first reboot or "Screen of Death" I cleared all the normal caches and factory settings and kept it "clean".
I had 3 more reboots and it was dead in the morning.
Seeing how CM7 doesn't do this using their own custom kernel, I'm blaming the stock kernel.

I use stock rom, perm rooted, cr4pwares are all removed, applied paul's fix., juice defender balance, screen off setcpu setting. Use wifi most of the time at home, when not at home, only use "4g" only. No reboots nor screen of death yet.

player911 said:
I hardly use WiFi and my reboots only occurred on the leaked Gingerbread. After the first reboot or "Screen of Death" I cleared all the normal caches and factory settings and kept it "clean".
I had 3 more reboots and it was dead in the morning.
Seeing how CM7 doesn't do this using their own custom kernel, I'm blaming the stock kernel.
Click to expand...
Click to collapse
My reboots or freezes usually only happen once a day or less frequently. The fact that my phone froze after finally getting home and worked perfectly while travelling makes me thing its something to my area. It could be the T-Mobile network /radio but I've rebooted a few times while on wifi calling.

Not sure about that theory. I use wifi 90% of the time on N only and have yet to have a reboot since I purchased this device.

Tonight mine rebooted around 7 times while charging it, talking on speaker and browsing. I noticed it was very hot while charging (40c)...I've had the phone since launch and had only one reboot until now.
I think I'm calling tmo tomorrow to swap it.
Sent from my LG-P999 using XDA App

N only is still different than mixed mode.
jlevy73 said:
Not sure about that theory. I use wifi 90% of the time on N only and have yet to have a reboot since I purchased this device.
Click to expand...
Click to collapse
Sent from my LG-P999 using XDA App

I am trying to get my new phone reboots by itself but I couldn't. I tried b,g and n only. They are all the same. My old phone shut off randomly. Hardware issue?

Except the phone is rooted and SIM unlocked, I keep the bloat intact.
My G2x doesn't encounter freezing or reboot after flashed back to stock. No matter wifi is on or not.
Perhaps certain application causes this issue. You have to check it one by one. Probably moving app to SD can be an issue (I keep all apps on application storage).

Could be the MicroSD. Someone needs to test different microsd cards on this phone. I used a Kingston on my old phone that had reboots, but Lexar microsd on the new phone now with no problem. I didn't get reboots until I started using microsd card. When I had auto shut off on my old phone, I could boot up the phone with either microsd or battery pull.

nraudigy2 said:
Could be the MicroSD. Someone needs to test different microsd cards on this phone. I used a Kingston on my old phone that had reboots, but Lexar microsd on the new phone now with no problem. I didn't get reboots until I started using microsd card. When I had auto shut off on my old phone, I could boot up the phone with either microsd or battery pull.
Click to expand...
Click to collapse
I use Sandisk 32GB (from MT4) and it works fine so far.

Anybody not having reboots use their Bluetooth a lot? Do you leave it on all the time? Do you use stereo Bluetooth?
I just realized the whole time on vacation I never used Bluetooth while I use it a lot here. Maybe another angle.
Sent from my LG-P999 using XDA App

mobilehavoc said:
Anybody not having reboots use their Bluetooth a lot? Do you leave it on all the time? Do you use stereo Bluetooth?
I just realized the whole time on vacation I never used Bluetooth while I use it a lot here. Maybe another angle.
Sent from my LG-P999 using XDA App
Click to expand...
Click to collapse
This is one I've been thinking... Cause I've had no reboots and never used bluetooth once..

I woke up in the middle of the night and this came to me - I have NO idea why!
I had two G2X's with the reboot/freezing issues, both in CM7 and Stock ROMs, with/without 3rd party/market apps. Both have been returned and I am back on a G2 now, but if we can figure this out, I *WILL* be going back to a G2X!
I had never considered one thing that both phones had in common - my MicroSD card. I never tested the phones without the card because it never had occurred to me that might be the issue.
I had in both the same Class 4 Sandisk 16GB MicroSD .
Is anyone else using the same card? Has anyone tested without a MicroSD?
It may not even be the card itself, it may be the reader in the phone!

I'm testing a brand new exchange phone now. Leaving it stock with no software installed by me. No SD card. It already powered down by itself once while charging and required a battery pull.

Brand new, as in brand new brand new, or an actual warranty exchange where they may have sent you a "refurb" that may have been one of the screwed up ones that someone returned?

JWhipple said:
Brand new, as in brand new brand new, or an actual warranty exchange where they may have sent you a "refurb" that may have been one of the screwed up ones that someone returned?
Click to expand...
Click to collapse
It's a warranty exchange by mail. So it came just alone with no battery or back cover. It could be a refurb, but it looks brand new to me with all the little teeny weenie plastic stickers on all the buttons just as my original one came as. I think it's too soon for them to have started re-cycling unit for refurb, no?

mapin0518 said:
It's a warranty exchange by mail. So it came just alone with no battery or back cover. It could be a refurb, but it looks brand new to me with all the little teeny weenie plastic stickers on all the buttons just as my original one came as. I think it's too soon for them to have started re-cycling unit for refurb, no?
Click to expand...
Click to collapse
Not at all, so many people on this forum exchanged their phones that sounds like Tmobile has many exchange phones to give out already.

[Q] [Problem] [FIXED] Optimus 3d P920 Random Reboot Problem

I have just purchased an Optimus 3d and hate to be the first to report having random reboots especially while copying large data from internal SD to the external one (per 3 trial to copy an +300MB file to the external SD i have 2 reboots). The phone seems stable while plugged in (both AC or USB) though. Problem usually occurs while the screen off. I have it 3-4 times a day while not copying a file.
These are the things I've done to see if the problem would be fixed with no luck.
- Installing different ROMs (v10b, v10d and v10e all custom)
- Factory reset (to make sure no 3rd party app cause this)
- Trying different SD card (using no external SD seems to decrease the reboots, but they still exist )
Now trying to use an official ROM and will see if the problem will be fixed.
Edit: Tried with the official v10d, and still the same
Any suggestions?
[FIX]: The GB update fixes the problem

Am I the only one having this issue?

I get 2-3 random reboots a day too, usually while it's in standby and doing nothing

mmace said:
I get 2-3 random reboots a day too, usually while it's in standby and doing nothing
Click to expand...
Click to collapse
Sorry to hear that.
I was among the lucky ones when purchased the Optimus 2x. It was perfect without any issues. And now, just paid my due

could be a faulty phone, had mine since july 1, and hasn't rebooted once, even with all the mods etc

Noticed mine rebooted by itself yesterday,1st time i know of,i have had the phone for a few weeks now,hope it doesnt start doing it regularly..

I've had one or two sleep of death and one or two reboots during the month+ I've had it, nothing major but I think LG got something messy in their ROM just like with the O2X, hopefully it wont turn out to be a hardware fault.

Ive had mine reboot randomly too P925g(rogers/thrill version) also once and a while all my bars will drop and i will have no signal couple minutes later and its back up

I get 2-3 random reboots per day lately

Quick question, do you have Bluetooth switched on when it's doing this?

Lagamorph said:
Quick question, do you have Bluetooth switched on when it's doing this?
Click to expand...
Click to collapse
No, bluetooth always disabled in my case...
Im thinking that its a hardware fault
Sent from my LG-P920 using XDA Premium App

not happened to me once ?
i have had the phone since 3 days before it was released in the uk ..
i have most roms and all seem to work well i even tries copying a file bigger than 300 mb between memory cards and no reboot either ... so i have no idea ...

this is interesting as i am having the same issue as well. but mine isnt rebooting.. its turning off completely. i come to see the phone and its off.
only had it for like 4 days now!

Maybe your SIM card is corrupted??
Try with another.

same problem
I had the same problem. I can tell you that you can't fix it by yourself. Your phone is broken. I used the LG VIP service to get a new phone and problems are over now. This is a hardware problem. Will never fix by reset or re install. Tip. Don't use the guarantee service of your provider but do it via LG. The most providers will keep your phone and send him back without doing anything on it because the problems is not when you turn your phone on. Good luck.

i suspect a sim card issue as well. mine currently randomly shuts off completely... i've seem issues with bad sim cards causing reboots ... but again mine shuts off so ...

I'm having the same problem with mine, I've replied to a thread on LG's forums and now I've sent LG a email because I'm starting to get worried about the phone. I've had problems with signal but after a long talk with T-Mobile CS I managed to fix the problem where I couldn't access internet when not at home on wifi, it was set to use orange signal instead of T-mobile all the time hehe.
I'm wondering how would a sim card cause a phone to reboot? I've been using phones for several years and the only problem a sim card has caused is no signal and in old days loosing contacts.
I was thinking it might be a over heating problem but then since it always does it when it's doing nothing and I'm nowhere near the phone I'm not sure it is.

Well, actually this problem found me!
When I've changed the rom for first time, I got this problem moments after first flash. Now, I've switched to V10j, and today when my phone was connected to Car Kit through bluetooth the phone restarted, I made reconnection and the phone restarted again, then I made wipe for data and cashe(For first time), but when I connect it again I got the same problem.
Now, I will see, if it keeps happening, I will use LG Tool to recover.
Edit: I did what I said and evrything goes fine.

I used to have 3-5 reboots a day, but only when phone is NOT connected to usb, charger or pc, dont matter.
Now it's gone up to a reboot every 20-30 minutes, still ONLY when usb is connected, when it's connected it can connect for ages it seems.
The major thing that changed in my phone is the 10k update that came in about a week ago or so, but I cant really recall if the up in problems started just than, as most of the time i'm using my phone through OSP.
First i thought the problem didnt occur when the phone was running any program (eg. in my car i usually have heytell app running) but tests proved me wrong.
other odd things are that recently i cannot do updates or download thru market anymore over wifi, i have to turn wifi off or else it will result in an update or download error. Strangely enough the phone software came in thru wifi no problem.
Tech support suggested a hard reset of the phone, but i read now that this dont solve the problem, i'm not looking forward to a resetm because when I do a full backup thru lg suite, and it dont work either, gives me an error with 0/8 back items finished and telling me that not backed up items are removed from the the restore list (jeay!).
any suggestions are wellcome!

Just got my phone back from service, I was assured by LG that they have tested the phone and the phone is fine, I checked the firmware on the phone and it is V10B, I was told that they (LG service center) don't have the V10J,what rubbish!!! I will have to upgrade the phone myself, so I did, I installed all my apps, NO ROOTING, my wifi is set on never, I know some PPL have been suggesting to switch it off, well, I paid $738,00 for a smartphone, if I can't use the smart features of the phone then what is the use gettnig a smart phone? anyways, I put a web cam on the phone to record, this morning I went through the footage, the phone has restarted 4 times, I started the recording at 11:00 pm, at the 3:05 am one restart, then at 4:08 am, 4:16 and finally at 6:15 am, this is a major fault in this phone that is supposed to be top notch, I will be calling the service center today to see what excuse I will be getting. I have wasted hours in installing re installing and trying fix a problem that should not be even there, also taking the time off to take the phone to service and then to pick it up.

[Q] Intermittent "No SIM Card-Emergency Calls Only"

Alright everyone, I've Googled my brains out (not in a dirty way) and haven't found any real resolution to the above issue. I've tried all the usual suspects; replacing the SIM Card, cleaning the SIM Card, adding tape to the back side of the card to ensure good contact, replacing SIM/MicroSD PCB Board, fresh Wipe of ROMs and Radios, etc. None of those things have had any real results except replacing the PCB-it seems to be less frequently occurring with the new SIM tray. Does anyone have any other ideas? I'm willing to try just about anything.
Thanks in advance.

mrfeuss said:
Alright everyone, I've Googled my brains out (not in a dirty way) and haven't found any real resolution to the above issue. I've tried all the usual suspects; replacing the SIM Card, cleaning the SIM Card, adding tape to the back side of the card to ensure good contact, replacing SIM/MicroSD PCB Board, fresh Wipe of ROMs and Radios, etc. None of those things have had any real results except replacing the PCB-it seems to be less frequently occurring with the new SIM tray. Does anyone have any other ideas? I'm willing to try just about anything.
Thanks in advance.
Click to expand...
Click to collapse
How often does this happen?
It only happens to me when I have to change the network mode. I've rarely seen it other except for maybe when my phone finds an LTE signal.
Otherwise, it could be the antennas. My mom once dropped her Samsung Focus and the antennas got screwed up.

Hangampalli said:
How often does this happen?
It only happens to me when I have to change the network mode. I've rarely seen it other except for maybe when my phone finds an LTE signal.
Otherwise, it could be the antennas. My mom once dropped her Samsung Focus and the antennas got screwed up.
Click to expand...
Click to collapse
Sometimes it'll happen through several reboots within a few minutes. It'll also happen when my phone is sitting, untouched, on my desk. There shouldn't be any network mode switching if my phone isn't moving.

mrfeuss said:
Sometimes it'll happen through several reboots within a few minutes. It'll also happen when my phone is sitting, untouched, on my desk. There shouldn't be any network mode switching if my phone isn't moving.
Click to expand...
Click to collapse
The only thing I can think of is to flash back to Stock AT&T software and see what happens. If you still have the same problem, it's most likely an antenna issue and you might be better off buying a new phone.

Time to return to stock and see what happens. Ugh, what an annoying issue.
EDIT: After returning to stock and installing TWRP I ran the stock UCMC1 software for a little while without incident. While I was setting up CM I got the dreaded "No SIM-Emergency Calls Only" message. I'm at a loss here. I guess it might just be time to start shopping for a new phone.
EDIT: I'm going to try running *SHUDDERS* stock Samsung/AT&T software for a few days to see if the problem persists. I'm pretty skeptical that this is a software issue, though, since I haven't seen too many people reporting this issue.

Good effort
Given all your efforts in eliminating various variables, I'm starting to believe Hangampalli is probably right and it might be a Hardware issue.
But it is a simple observation to stay on a solid stock ROM like the recent UCMC1 (original att version) for a couple of days and see what happens.
You remind me of myself with my Samsung Galaxy S (Captivate) random shutdowns last year. I chewed up all the threads at XDA back to back and tried anything, and it still did it ... but we all know when to quit.
Cheers to your efforts:good:
I727-UCMC1-CM10.1

Well after about 20 minutes into running the phone on UCMC1 Stock my phone came up with the same stupid error. I'm going to see if AT&T is willing to do anything for me since I just got this phone as a replacement in October. But if not, I guess I'll be phone shopping. :-/ Such a shame because I really love this phone and its community of users and devs.

mrfeuss said:
Well after about 20 minutes into running the phone on UCMC1 Stock my phone came up with the same stupid error. I'm going to see if AT&T is willing to do anything for me since I just got this phone as a replacement in October. But if not, I guess I'll be phone shopping. :-/ Such a shame because I really love this phone and its community of users and devs.
Click to expand...
Click to collapse
its the phone, is it still under warranty

I got the phone as a replacement from AT&T (bad headphone jack, last time) in about October. I'm going to try to see if they'll replace it for me. Fingers crossed.

Ya I have had this same problem. Changing ROMs fixed it for me though.
Sent from my SAMSUNG-SGH-I727 using xda premium

AT&T apparently warranties their replacement devices for 90 days or until the end of the original device's warranty, whichever is longer.
What does that mean for me? I'm boned. I guess I'm stuck with my iPhone until I buy a new phone. It's going to be hard leaving this great community of Developers and Users and shedding such a great device.

Humm... I wonder if I have the same problem, is there any tests you can do to see if it is the sim card tray or something like the attenna ? I seem to have service sometimes, not all the time.

Question Xperia Bricked-Removing SIM fixed problem

Sony 5 III XQ-BQ62 Android 13
This morning I took three photos and the phone died. Screen black. Power button did nothing. Power button + volume up, volume down did nothing. When I got home I plugged in a power cord and nothing. The red LED in the upper right corner that shows you’re charging wasn’t there. I left it plugged in awhile and nothing.
Then I removed the SIM card to swap it to another phone and the Sony 5 III lit up. I put the SIM card back in and it worked fine.
I have it set to charge to 80% and stop and it was obviously charging while it was blacked out because the battery was at 85%.
I put the SIM card and SD card in and all is working well.
Any thoughts on what happened and why removing the SIM fixed it?

SIMple fix

I'm older than most trees and can remember placing phone calls to Europe using the overseas operator. I'n not a phreak and don't really understand cell phones. But, I was hoping that fact that removing the SIM card solved the problem would be a clue to those who do understand cell phones as to the nature of the problem.
One additional clue has come up. My phone forgot how to read my fingerprints. I deleted all of them and put two back in. The new fingerprints are working fine.
I'm considering a reset.

patrickt said:
I'm older than most trees and can remember placing phone calls to Europe using the overseas operator. I'n not a phreak and don't really understand cell phones. But, I was hoping that fact that removing the SIM card solved the problem would be a clue to those who do understand cell phones as to the nature of the problem.
One additional clue has come up. My phone forgot how to read my fingerprints. I deleted all of them and put two back in. The new fingerprints are working fine.
I'm considering a reset.
Click to expand...
Click to collapse
Well unfortunately until you can replicate the issue then we shall never know. The SIM card removal could have been a complete coincidence and not related to the problem at all.

I know. I was hoping someone else had had a similar experience. Me? I'm hoping we don't have a replication but I'm still curious. I reset my fingerprints and it seems to be working well.

patrickt said:
I know. I was hoping someone else had had a similar experience. Me? I'm hoping we don't have a replication but I'm still curious. I reset my fingerprints and it seems to be working well.
Click to expand...
Click to collapse
I've had a similar issue after updating to android 13. It wasn't the sim but actually the SD card. After multiple factory resets. I realized it works perfectly once the SD card was out.
Just format the card and the phone has been perfect since.

Thank you. I'll format the card.