The phone won't read the SIM Card and IMEI is unavailable! - LG Optimus 4X HD

Hello guys. When I insert the SIM Card into the SIM Card slot the phone refuses to read. I also checked the IMEI number by typing *#06# in dialer and the IMEI window opens but it's empty. I've tried turning in airplane mode, wiping dalvik cache, cache and formatting, resetting but still the IMEI is empty and the phone won't read the SIM Card slot. I also tried to clean the sim card slot but I that's not the problem either.
Oh, and I also tried to follow a guide here in the forums but I couldn't find my EFS folder and I stopped following the guide because of that. Can you help me guys?

ariton1 said:
Hello guys. When I insert the SIM Card into the SIM Card slot the phone refuses to read. I also checked the IMEI number by typing *#06# in dialer and the IMEI window opens but it's empty. I've tried turning in airplane mode, wiping dalvik cache, cache and formatting, resetting but still the IMEI is empty and the phone won't read the SIM Card slot. I also tried to clean the sim card slot but I that's not the problem either.
Oh, and I also tried to follow a guide here in the forums but I couldn't find my EFS folder and I stopped following the guide because of that. Can you help me guys?
Click to expand...
Click to collapse
I think EFS folder is unique to Samsung devices (not sure). There isn't any folder like that on 4X HD. Try to reflash stock rom, because it will revert it to factory state.

Related

Phone keeps disconnecting in mass storage mode

hi guys this is my first post on this forum although i have been browsing around for a few months. my problem is that whenever i connect my phone to my pc and mount it, the computer recognises it but whenever i try to add files to the SD card or format it, the phone disconnects and i have to mount it again. once i have mounted it, the whole process starts all over again and now im stuck in a position where i cant do anything with it.
has anyone had his problem before and is there a way to fix it or is my SD card faulty? thanks in advance.
Are you rooted? If so, what rom are you on? Just give us some specs on what you got.
no im not rooted, im on the oem android software. i was just about to format my SD card so i could start rooting it.
Is it the factory sd card? Do you got another card to try out? If not, try to format the card in the phone and then try it again to see if it still does the same thing.
yeah its a factory SD Card. itried formating it from the phone and now i can add files to the card but it still disconnects whenever i try to format it. is the card protected or something?
djosiah said:
yeah its a factory SD Card. itried formating it from the phone and now i can add files to the card but it still disconnects whenever i try to format it. is the card protected or something?
Click to expand...
Click to collapse
You cannot format it through the USB by mounting it
ok how do i do it then? should i just use a card reader? or is there another way to do it by using the phone? also thought i would add that it has started doing it when adding files to the card again.
djosiah said:
ok how do i do it then? should i just use a card reader? or is there another way to do it by using the phone? also thought i would add that it has started doing it when adding files to the card again.
Click to expand...
Click to collapse
You can put it in a card reader if you have one. I would boot into ubuntu and do it that way, also if you are in ubuntu you can do it through your phone.
djosiah said:
ok how do i do it then? should i just use a card reader? or is there another way to do it by using the phone? also thought i would add that it has started doing it when adding files to the card again.
Click to expand...
Click to collapse
The phone has an option too. Go to
Settings > SD and storage > Format Card
Since your stock G1, the other phone partitioning/formatting isnt available
ok thanks guys i formatted the SD crad uising the options on the phone, which now leaves me to my next problem. i have download the Rc7 file and placed it on he root of the card but i when i power on the phone holding down the camera phone it doesnt show the grey screen with the flashing options, it jus shows the screen which tells me the board type etc. am i doing something wrong? sorry for all the questions.
djosiah said:
ok thanks guys i formatted the SD crad uising the options on the phone, which now leaves me to my next problem. i have download the Rc7 file and placed it on he root of the card but i when i power on the phone holding down the camera phone it doesnt show the grey screen with the flashing options, it jus shows the screen which tells me the board type etc. am i doing something wrong? sorry for all the questions.
Click to expand...
Click to collapse
it doesnt have flashing options
press the power button (not hold, just press) and it should say that its flashing the image.
(look in the center of the screen, there should be a line of text that says something)
DO NOT TURN OFF YOUR PHONE TILL ITS DONE FLASHING
Btw just chiming in case it comes up as it did in the past. If you use Swapper app and have a swapfile image located in the fat32 area, it would cause DC issues or not connect right, back then it never hit me that the swapfile was being torn away from a system that was looking for it, which then gave me corrupt sd errors. (Granted it wasnt) but yea, just another thing to look out for to those using a image file still for swap.
Also how did your flashing go?

Wierd Problems

Ok so I rooted my phone as well as partinoned my SD card (I have an 8 GB now) a while back and now I am having problems with my SD card. The other day my phone gave me a message saying that my Sd card was not supported and that I needed to format it. Stupid me I did that on my computer and wiped everything of of it. My friend who also has a rooted G1 got my phone to restore the CM but now everything is saving to my phone again. I tried to part it again and it says that nothing is found. Any ideas on what I did and what I can do to get everything back to the way it was when it was working correctly?
Also my phone started doing this other weird thing where I'm viewing anything and im scrolling through whatever the screen timesout eventhough I'm touching it. Anything to help with this aswell?
Thank you guys so much for the help!
I lost ya when you said you tried to part it again but nothing is found. Did you partition the card and no apps are found or you couldn't partition the card.
I tried to partition the card again but there was no data found and I couldn't partition it.
If you can't even partition it then you have a bad card brother. The strange behavior could be a symptom of the ext partition failing. I'm assuming you have a swap partition but don't actually use it with a user.conf file otherwise a failing card would cause your phone to completely freeze.

[Q] Sd card appears damaged and reboots phone

Recently i bought an 8gB class 10 sdhc card. Put it in my phone it was working fine. I copied all the files from my old card exacty as they were mounted the card again and the phone says the card is damaged and reboots all the time.
I put it in a friends samsung galaxy3. The card worked fine and all files were there. So obviously it has to do with my phone.
I'm using gingerdx the latest version with stock kernel.
I'd appreciate all the help you could give me guys. Thanks in advance.
try to format your sdcard (backup fist)
don't perform quick format..
still can't try format using phone..
then make a partition..
on developer forum we have a [guide] how to partitionning sd card
Nothing. I tried what you said I even reflashed my rom and worked it with no extra apps but phone still restarts when i try to move an app to the card.
I don't know if it's significant but i noticed that: I went in cwm and tried to mount sd-ext and I always got an error. Tried to format it again error.
sonik_5 said:
Nothing. I tried what you said I even reflashed my rom and worked it with no extra apps but phone still restarts when i try to move an app to the card.
I don't know if it's significant but i noticed that: I went in cwm and tried to mount sd-ext and I always got an error. Tried to format it again error.
Click to expand...
Click to collapse
do not perform any activity in cwm regarding sdcard it is not compatible,even format sd ext it will give you a result of damage sdcard for some rom or your current,resulting to reformat your sdcard,now backup all your files to pc,reformat your sdcard through your phone,unmount sdcard t then erased sdcard,then back your files...Hope it help...
Go to advanced in cwm and go to fix permissions. See what that does for you.
Sent from my Nexus S using xda premium
Guys thanks for all the replies. Nothing seems to be working though, phone keeps rebooting. Might just be a faulty sd card, but that would be the second in the row.

Force Close all apps after flash

This is a different issue. It doesnt matter what rom I put in, I always get the force close for all the apps. Now I dont know what rom to put in. I put in any rom, initially I get the setup wizard force close, then the google search, market and so on. I have done clearing the cache, tried different kernels.
Another strange that I notice is that whenever I wipe the caches and do a factory reset, there still remains some files in the internal sd card. I formated the sd card as well but when I goto the recovery menu, I still see it. Im trying to fix this issue for the last 3 days. Could some one please help me?
Always make a factory redet after flashing.
Sent from my GT-I9000 using Tapatalk
I have done factory reset several times. One interesting thing is how many times I do the wiping, the internal sd card still holds some old files. I have even tried to format the sd card but to no help. I still then files. The files are related to CWM and the back up files.
vinodkrish_r said:
I have done factory reset several times. One interesting thing is how many times I do the wiping, the internal sd card still holds some old files. I have even tried to format the sd card but to no help. I still then files. The files are related to CWM and the back up files.
Click to expand...
Click to collapse
I seen this problem in another thread.. I think it's hardware related... so you might have to send it to Samsung
Sent from my GT-I9000 using xda premium
Would a restore in Kies solve this?

Problem w/ SDCARD, Unmounted , Checking for errors

Hello everybody
i tried to connect it to another computer and could not so i switched to MSC mode to see if it reconogizes it, after that i think my cable failed because the LED went orange twice, then i realized it wont accept my SD CARD anymore, also i try to open dev mode and it crashed, i try to get in USB settings and it crashes too now on this computer it shows internal memory only
i did factory reset and the problem is still there, my phone is C5302 android 4.3 and stock firmware
EDIT: i tried with another sd card and nothing happens, when i go to storage it says mount so i go for it and a notification pops up saying checking for troubles with the sd card icon, it just hangs there nothing happens
Im_Pablito said:
Hello everybody
i tried to connect it to another computer and could not so i switched to MSC mode to see if it reconogizes it, after that i think my cable failed because the LED went orange twice, then i realized it wont accept my SD CARD anymore, also i try to open dev mode and it crashed, i try to get in USB settings and it crashes too now on this computer it shows internal memory only
i did factory reset and the problem is still there, my phone is C5302 android 4.3 and stock firmware
EDIT: i tried with another sd card and nothing happens, when i go to storage it says mount so i go for it and a notification pops up saying checking for troubles with the sd card icon, it just hangs there nothing happens
Click to expand...
Click to collapse
You can try the following
1) Factory Reset the Device, of course back up your data first.
2) Flash a clean stock firmware, again make a backup of important data
3) Try using a different cable and make sure the drivers for your device are updated on the computer
Good luck
Revontheus said:
You can try the following
1) Factory Reset the Device, of course back up your data first.
2) Flash a clean stock firmware, again make a backup of important data
3) Try using a different cable and make sure the drivers for your device are updated on the computer
Good luck
Click to expand...
Click to collapse
I did a factory reset and switch SIM cards, dont ask me why but it just read my sd card again!
I'm glad it worked enjoy!

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