Develop Bugs

Unable to boot up with sim card inserted

i seem to have this problem whereby when my phone starts up with a sim card inserted, the phone will boot into lockscreen for 1s then it'll start to dim into darkness and automatically reboot
this behaviour doesn't happen when the sim card is taken out
i've tried to reflash the firmware but the problem still persists, i have no idea whats wrong and this phone just came back to me yesterday from SE repair center where they changed the motherboard!
any idea what should i do?
i'm on 2.3.4 rooted

I assume you've tried another sim card. Just send it back other wise.
Sent from my LT15i using XDA App

i put in another sim card, it works for maybe 30 minutes then same problem
so i put in yet another sim card, worked for 1hr then same problem
put in the 1st sim again, immediately problem occurs
seems like the phone remembers the sim cards that were slotted in, or it damages the sim cards in some way but the sim cards work with other phones so i'm at a blur
decided to send the phone in for servicing again, hopefully the next set wouldn't cause any problems anymore
i've had quite a few android devices and have been flashing winmo phones for years, but this is the 1st time ever i've had to send a phone in to repair!

Data and reception problem

Hello dear friends,
My Samsung captivate glide stopped receiving 3g data (mobile network not available).
Two weeks ago I had flashed Osimood ROM, all worked correctly until now.
Now I have only the wifi connection working but the Mobile network is not available at all (I cannot even call the emeregncy numbers - it gives me the "the process com.android.phone has stopped..." ).
I tried access the Settings-wireless and network-Mobile networks and it shows me "Insert SIM card".
Then I tried *#SIMLOCK# to check if my fphone is locked, it shows me "the process com.android.phone has stopped unexpectedly".
I tried to restore the phone from other backups from other Roms , but the problem is still the same.
Please help me to solve the problem and fix my phone.

#1 Thing can you make Phone calls?
#2 Verify your APN settings for Data? Is that Fine?

dudejb said:
#1 Thing can you make Phone calls?
#2 Verify your APN settings for Data? Is that Fine?
Click to expand...
Click to collapse
#1 No, I can't.
#2 I'm cannot access to APN settings, it gives me an error "Insert SIM card"

dlitbak said:
#1 No, I can't.
#2 I'm cannot access to APN settings, it gives me an error "Insert SIM card"
Click to expand...
Click to collapse
Try turning off your phone and re-seating the Sim card (only do this when phone is off) Then try turning on phone and seeing if you can make calls again if it still does not work try your Sim on another phone or another Sim on your phone. If unlocked any providers should work if not try from same provider.
I once had this happen to me for some reason my Sim was not properly seated. hopefully that is all that is wrong here as well. If your Sim is not being recognized, it may be hardware. Unfortunately and some people have stated issues where there Sim was not being recognized as they removed and inserted it in the past with the phone on, which could have caused some short.

dudejb said:
Try turning off your phone and re-seating the Sim card (only do this when phone is off) Then try turning on phone and seeing if you can make calls again if it still does not work try your Sim on another phone or another Sim on your phone. If unlocked any providers should work if not try from same provider.
I once had this happen to me for some reason my Sim was not properly seated. hopefully that is all that is wrong here as well. If your Sim is not being recognized, it may be hardware. Unfortunately and some people have stated issues where there Sim was not being recognized as they removed and inserted it in the past with the phone on, which could have caused some short.
Click to expand...
Click to collapse
Thank you dudejb for the quick answer.
I tried to re-seating the Sim card (while phone is off),
Tried to insert another Sim of other providers,
These methods didn't resolve the issue.
I never touched the Sim card before, so I think it cannot be the hardware issue.
Any another suggestions???

You could try clearing data for Phone and Phone Data (via Settings -> Apps), but I suspect that may not be good enough. If that doesn't work, use your installed recovery to wipe data. (Note, this will delete all user data on the device and reset your ROM to first-boot state!)
If it STILL doesn't work, use Kies to restore the device back to stock (Tools -> Firmware Upgrade and Initialization). If your radio works now, there was something wrong with the ROM you had, or your baseband got corrupted somehow. You can try your ROM again if you want; if the problem coems back, try a newer version or a different ROM.
If it STILL doesn't work, you're gonna have to call Samsung support. With the device in stock state they should be willing to help.

Thank you dudejb and roothorick for time and answers.
I resolve the issue by pulling out the battery and Sim card, after blow it by compressed air (dust cleaner).
My phone is back and it works like a charm

dlitbak said:
Thank you dudejb and roothorick for time and answers.
I resolve the issue by pulling out the battery and Sim card, after blow it by compressed air (dust cleaner).
My phone is back and it works like a charm
Click to expand...
Click to collapse
Makes sense and thank goodness (is that even a word?) Dust blocking connection to the Sim, interesting that it can do that. Glad to see it is working again.
Sent from my SAMSUNG-SGH-I927R using xda app-developers app

Also if your service suddenly dissapears try to tape the sim card in place I had to do that
Sent from my SAMSUNG-SGH-I927R using xda premium

Sudden problem in detecting of SIM

Weird thing happened to my phone..
from yesterday morning my sim 1 didnt detect,i thought my sim 1 hardware gone,since i tested with 5sims,2 are carrier micro sim,..
after 1day..i cant take that is hardware problem[ it just gone in overnight,dint drop,didnt shake since i slept] and opened the calc and tested the sim 1 ,it says test shows error,,.so i just tested my luck by downloading last update nd flashing...thank GOD...my sim 1 now works...
i seen some other also had this and asked replacement..thats y sharing this..
in future you may have this,so first try to flash stock,then goto service center

my both sim slot are loosey and sometime the sim card just slide out of it designated position and no sim detected occurred. it happen when i open my case and did not align the card properly. could this be the same issue you are facing?

sooty84 said:
my both sim slot are loosey and sometime the sim card just slide out of it designated position and no sim detected occurred. it happen when i open my case and did not align the card properly. could this be the same issue you are facing?
Click to expand...
Click to collapse
no, as i mentioned i thought the same and tried with 5 sims... but nothing really worked, only after stock flashing it worked without adjust

Sim card problem. Not reading it.

Good night. Im having some issues with mi note 2, it stop recognizing my SIM card. I traveled outside of my country and the phone was working with roaming but i ran out of battery and later the phone just suddenly stops recognizing my SIM card. I already try doing a hard reset but i received the same error. Do i have to do something or is the card reader that i need to change? Phone is open for all mobile operator. Please help me?! Thank you

I wouldn't think that a dead battery would have anything to do with sim loss ...but a reader failure is quite possible.
Did you remove the card for any reason while the cover was off ??
One other possibility....
When your phone lost power it could have altered the network or APN settings....
My first note device would lose network connection if my phone lost total power...
Check the APN settings....and gently clean your SIM contacts with a swab and alcohol as well...
Best of luck....g
Edit:
You could also restore a backup and test the device....or reflash a new image.
Data loss is absolutely possible....with total power loss...g

Phone randomly stops detecting sim card?

Has anyone else encountered this? I have the UK version (it supports all att bands). It randomly stops detecting the sim card, and I have to eject it and reinsert it for it to detect it again.

sounds like an issue with the phone man... Mine has been flawless. if i were u i would return it... or at least try a new sim card.

I tried changing the APN settings to see if that makes a difference at all

metalmike6 said:
sounds like an issue with the phone man... Mine has been flawless. if i were u i would return it... or at least try a new sim card.
Click to expand...
Click to collapse
I second this. Sometimes you just get a faulty device. Just exchange it for a new one.

have you checked the SIM card, make sure its clean? Seated correctly? You can clean the contacts carefully with alcohol wipes