Hi everone, i have a big problem. I changed the SIM card in ma MDA compact 2 for a while, and then a gave my T-mobile sim card that i used usually and turned on the device. On the PIN code sreen it wrotes "INVALID SIM CARD"
what is the problem? i tried HR, new ROM. The sim is OK.
Please heeeeeeeeelp
this is realy strange. i see few possibilities:
1) sim card damaged by static electricity - the best case. Try another sim, if ok, tmobile will replace your sim for a small fee with the same number
2) damaged software inside device. this could also be repairable. try to flash latest official t-mobile rom, complete update with radio especially. imho german aku 3.3 is the latest
3) damaged hardware - hope this will not happen.
the best case wil be damaged sim card holder - this can be bought in every electricians shop, this is also the only part you can replace yourself (unless you are really well skilled electrotechnician)
otherwise, if circuits are damaged, just t-mobile or htc service is the possibility.
Try following step-by-step:
1) clean sim contacts with hard rubber, then clean with ethanol
2) check the sim card holder if pins are not bend or damaged. clean them with cotton and ethanol
3) check also board visible around sim card holder for scratches
4) discharge it completely, as much as possible
5) charge again to 100% (sometimes discharge-charge cycle helps with such strange cases)
6) flash latest tmobile branded rom
I have no further ideas except tmobile or htc service...
the holder is good because the O2 card is going in the MDA, only the T-mobile card wont start. And the T-mobile card is good a placed it into a K750 and it goes...
that's good, does not look to be hardware malfunction.
what about another tmobile sim?
isn't possible that you have accidentally sim-locked your device during some experiments? it will be good to try possible unlocking schemes (in fact, i'm not experienced in those lock things, others are...)
an another sim makes the same as my, INVALID SIM CARD. i think its locked on T-mobile what to do?
as i said, i'm not experienced with this. you may try this:
http://forum.xda-developers.com/showthread.php?t=250520
im happy, it goes, i gave a little piece of paper under the battery, and its good
:-D
nice. try to clean sim holder contacts and pull them a little bit upwards.
I printed out a template and cut my old sim card from Rogers. It's activated and the back of it says HSDPA.
I have tried inserting the sim while my phone was off. I turned it on and it still said no sim card. Do I need a new sim card?
One side of the gold chip touches the metal tray. Does that make a difference?
emmui said:
I printed out a template and cut my old sim card from Rogers. It's activated and the back of it says HSDPA.
I have tried inserting the sim while my phone was off. I turned it on and it still said no sim card. Do I need a new sim card?
One side of the gold chip touches the metal tray. Does that make a difference?
Click to expand...
Click to collapse
I chopped my tmobile sim card (from G1 days) and the gold chip was larger than the replacement sim that I got (G2X). I popped the newer sim into my G2X and activated. Then removed and used the template to chop and it detected immediately one placed in the tray.
Sounds like you need a newer card to me.
Hope this helps.
emmui said:
I printed out a template and cut my old sim card from Rogers. It's activated and the back of it says HSDPA.
I have tried inserting the sim while my phone was off. I turned it on and it still said no sim card. Do I need a new sim card?
One side of the gold chip touches the metal tray. Does that make a difference?
Click to expand...
Click to collapse
Yes you need to get a new sim card,
The problem with Nexus 4 sim tray is that it's metal and not insulated like iPhone 4,
This also was the cause for data drop on my side, I had my sim card replaced after my first one just completely not working anymore. And just so it won't happen again, I took a thin piece of paper to cover part of the sim card just so it doesn't touch the metal tray on both sides
emmui said:
I printed out a template and cut my old sim card from Rogers. It's activated and the back of it says HSDPA.
I have tried inserting the sim while my phone was off. I turned it on and it still said no sim card. Do I need a new sim card?
One side of the gold chip touches the metal tray. Does that make a difference?
Click to expand...
Click to collapse
My card was cut and seemed top work fine until it sit if popped outs place one day, took it it and grinded away the edgy bits that the cutter left behind so it was smooth and got nicely into the tray. Benn working ever since (fingers crossed!)
How to remove the SIM card easily ?
I'm still switching between my note2 and note3 until all is reconfigured; so I'm switching the SIM card as well.
removing the SIM is not easy on the Note3 due to the abscence of spring mechanism.
I wanted to share my solution, which is a very common answer to common problems: 'Duct Tape'.
Cut a small string of tape, stick on SIM, make a little handle by sticking the rest of the tape to itself; profit.
See pics in below links.
http://s13.postimg.org/vk1t5v0xz/duct_Tape01.jpg
http://s18.postimg.org/d34x3qzfd/duct_Tape02.jpg
http://s17.postimg.org/yp4oicalr/duct_Tape03.jpg
MasterZ
As is explained in the manual and quickstart guide:
REMOVE THE BATTERY BEFORE INSERTING OR REMOVING THE SIM.
Also, it rests 2 milimeter below the edge of the battery. If you lot, who are supposed to be tech-savvy, couldn't figure that one out by means of logical thinking, I weep for the future of humanity.
Indeed, I didn't try but I don't think you can remove the SIM with the battery in; even with the tape...
I use one tweezers to extract it. (Whitout battery)
Masterz said:
How to remove the SIM card easily ?
I'm still switching between my note2 and note3 until all is reconfigured; so I'm switching the SIM card as well.
removing the SIM is not easy on the Note3 due to the abscence of spring mechanism.
I wanted to share my solution, which is a very common answer to common problems: 'Duct Tape'.
Cut a small string of tape, stick on SIM, make a little handle by sticking the rest of the tape to itself; profit.
See pics in below links.
http://s13.postimg.org/vk1t5v0xz/duct_Tape01.jpg
http://s18.postimg.org/d34x3qzfd/duct_Tape02.jpg
http://s17.postimg.org/yp4oicalr/duct_Tape03.jpg
MasterZ
Click to expand...
Click to collapse
For my Note 3 I never had a problem pulling it out
1. Take out the battery
2. Make sure your Thumb has some sort of friction (NOT SMOOTH)
3. Rest your thumb on the edge of the sim and pull downwards (Due to friction the sim pulls out with some force)
4. Done
I swapped sims like this from day 1 when I unlocked it and tested my friends sims in and out.
I never used a third party tool...
:good: good solution
I used a pencil eraser - the rubber provides plenty of grip, and the pencil eraser head is small, so it's the perfect tool. I easily switched SIMs back and forth using this method, with no problem.
So...recently I switched to a new T-mobile prepaid plan, and the sim card the pack came with was (unbeknownst to me at the time) a microSIM.
(Wasn't paying attention to the package. Phone had been turned off for days, I was excited). Being the stupid person I am, I put the microSIM card in my sim card slot and (*gasp*) it was too small. I couldn't get it out with my fingers, so i took a paper clip to it. I suppose in the process of removing the sim card, I must have pushed some of the pins down. The phone no longer recognizes any sim cards. I've taken the phone apart down to the motherboard, but the sim card reader the the sd reader are attached to the motherboard. Does anyone know of anyway that I can remove them from the motherboard so I can access the pins underneath the reader? Thanks in advance.
Sorry for the long post...I like typing..
whytry23000 said:
So...recently I switched to a new T-mobile prepaid plan, and the sim card the pack came with was (unbeknownst to me at the time) a microSIM.
(Wasn't paying attention to the package. Phone had been turned off for days, I was excited). Being the stupid person I am, I put the microSIM card in my sim card slot and (*gasp*) it was too small. I couldn't get it out with my fingers, so i took a paper clip to it. I suppose in the process of removing the sim card, I must have pushed some of the pins down. The phone no longer recognizes any sim cards. I've taken the phone apart down to the motherboard, but the sim card reader the the sd reader are attached to the motherboard. Does anyone know of anyway that I can remove them from the motherboard so I can access the pins underneath the reader? Thanks in advance.
Sorry for the long post...I like typing..
Click to expand...
Click to collapse
They aren't actually attached to the motherboard, they are attached to a thin metal plate above the motherboard, and connect underneath with a small black ribbon on the right hand side (not the camera ribbon). You can gently undo the black ribbon cable that wraps underneath on the right hand side (near the black coax cable), then unlatch the tiny metal tabs all around the metal plate they are attached to (I used a small flathead to pry them), and pop the plate off. Can't remember if you can access the pins from there, but you might get a better look at it at least. If I remember there are a few little holes under the sim reader, where you might be able to access whatever you jammed up.
Good luck!
hello guys, yesterday I was trying to switch my sd card and what I didnt expect, I couldnt remove the tray.
I thought maybe sim or sd was stuck, so after a while, I was able to gently remove it with a knife.
As it turned out, that wasnt a problem and I still cant remove it fully...
ye...why does this have to happen... anyone have some trick maybe? Or experienced the same problem?
Thanks
It's possible that your SIM card (or a storage card) has become disloged, ie; is not laying flat in the tray. I think the best you can do is to gently push the tray back in and lay it flat face up and see if you can shake it a bit to get it to settle into the tray. If that does not work, I would take it somewhere for repairs.
Just cant believe this really...
I managed to break it, so the stuck piece is still in my phone, but now I am at least able to put a sim and sd card into it.
Contacts little bent, but its how it is and the phone works. Will have to ask about warranty service on this, I am really curious, what will they say...
So be aware, even thing like this can happen...
Yes, this SIM tray is very fragile. You are not the first.
Exact same thing happened to me. I believe there is some clip or contact that detects when the Sim tray is inserted or ejected and it gets caught there. They used a flimsy plastic Sim tray and it breaks in the same place.
The SD card and Sim tray still work. Just have to reset the phone when you change it for the phone to detect the changes.
Happened to me exactly like yours...i used a very this bit of plastic, with a bit of blue tack very firmly attached to the plastic and gently, VERY gently pushed it in to the sim/sd card slot and only took 2 attempts but the bit that broke off came out!!
Then went on Ebay and got a brand new sim/sd card tray and voila!
Cost me £4.50 for new sim tray, but working perfect now.
Matt
Any ideas on extracting w/o breaking the tray?
I have the exact same issue as the OP (before his tray broke).
Does anyone know any tricks to extract a stuck tray without breaking it?
edit: nm. Broke the tray. Took no force at all.
So the issue here is one of the SIM reader pins is sticking up and is catching the tray. Trying carefully to bend it back where it belongs.
edit #2: Can't bend the pin back w/o disassembling the phone. Going to borrow a heat gun.
matthew33 said:
Happened to me exactly like yours...i used a very this bit of plastic, with a bit of blue tack very firmly attached to the plastic and gently, VERY gently pushed it in to the sim/sd card slot and only took 2 attempts but the bit that broke off came out!!
Then went on Ebay and got a brand new sim/sd card tray and voila!
Cost me £4.50 for new sim tray, but working perfect now.
Matt
Click to expand...
Click to collapse
Hey there Matt, I got exact same problem, tray got stuck and I rushly pull left over broken tray. I replace the sim tray but now sdcard not working. It is detected and attempt to format the card but fail at 20%. I'm still try to repeatly removing sim tray before I take it to LG.
---------- Post added at 04:41 PM ---------- Previous post was at 04:36 PM ----------
samo147 said:
Exact same thing happened to me. I believe there is some clip or contact that detects when the Sim tray is inserted or ejected and it gets caught there. They used a flimsy plastic Sim tray and it breaks in the same place.
The SD card and Sim tray still work. Just have to reset the phone when you change it for the phone to detect the changes.
Click to expand...
Click to collapse
So you meant when replace that sim tray, you need to hard reset so it will detect the sdcard? Because I have sim tray replaced, sim worked but sdcard wasnt, it keep fail to format at 20%.
You must have damaged some pins. For me all my.pins are intact and the broken piece is still in the phone. I have to do a hard reset for mine if I want to change the Sim or SD card
samo147 said:
You must have damaged some pins.
Click to expand...
Click to collapse
Same here. Damaged SIM reader pin. Tore the phone down and it's not clear if it's repairable or not.
Regardless, I'm writing off my G6 (just 1 month after I got it). I'll pickup a V20 for now, so I don't have to look at another SIM tray.
samo147 said:
You must have damaged some pins. For me all my.pins are intact and the broken piece is still in the phone. I have to do a hard reset for mine if I want to change the Sim or SD card
Click to expand...
Click to collapse
I went to LG and they ask for mainboard replacement cost $400, what a joke! Looks like they wouldnt replace only damaged part.
Even if you replaced it. It won't be long before it breaks again in the same spot... If it was a metal Sim tray it would be a lot better. I'm going to avoid LG phones from now on.
evan_g4 said:
Hey there Matt, I got exact same problem, tray got stuck and I rushly pull left over broken tray. I replace the sim tray but now sdcard not working. It is detected and attempt to format the card but fail at 20%. I'm still try to repeatly removing sim tray before I take it to LG.
---------- Post added at 04:41 PM ---------- Previous post was at 04:36 PM ----------
So you meant when replace that sim tray, you need to hard reset so it will detect the sdcard? Because I have sim tray replaced, sim worked but sdcard wasnt, it keep fail to format at 20%.
Click to expand...
Click to collapse
Happened to me AGAIN yesterday mate, now, like you...my SD card no longer works..ARRGHH!!!
Matt
Bad design
I have had 3 LG G6s, each one has had this happen. It sticks in the corner by the sd card contacts. After it catches it will not read SIM until i get a new tray. I think there may be some sort of pressure switch. I wish LG would replace it with a G8x...
Even the models w/o dual sim capability have contacts for a second sim. These rub against and can get stuck at the tiny pads on the underside of many mSD cards. This will cause the tray to get stuck in the frame for additional friction. If this happens to me again i will try to pull the tray out with some adhesive tape to be able to apply force in the middle or at the left side, where the sd sits, instead of the opposite side via the hole.
Especially the newer, bigger mSDs seem to have such pads, none of my old ones has one, that's why i didn't test whether you could sadely remove the pad. Probably there's the bare flash die underneath.
I solved the problem...its called the LG V30!
Love it!
Matt
Sent from my LG-H930 using Tapatalk
cp1024 said:
I have had 3 LG G6s, each one has had this happen. It sticks in the corner by the sd card contacts. After it catches it will not read SIM until i get a new tray. I think there may be some sort of pressure switch. I wish LG would replace it with a G8x...
Click to expand...
Click to collapse
Hi, I got the same problem. The tray broke down only for the SD card and SIM slot is intact. But the phone does not anymore recognize SIM card. So do you think that I did not damage the reader and it's only a matter of getting a new SIM holder?
If you ran into the issue with a sticky mSD, the contacts for the second sim msy be bent/broken/shorted. Whereas only a short may prohibit use of the primary sim slot. And the contacts may not even be soldered to the pcb on a single sim phone like p870. Otherwise just the flimsy plastic tray broke. On my Iphone 4s it was made of metal. And the lever to push the thing outwards was centered and not to the right side, which makes even pushing out an empty tray difficult.
I finally got replacement tray and can confirm that SIM reader started working again. So it indeed seems that there is a pressure switch and it did not activate when the SD card compartment was damaged. No I just worry do I dare to remove sim tray ever again.
My current 128GB mSD in the p870 has a sticker on the back like most mSDs at higher (32/64GB and up) capacities, but this time there's no friction with the useless contacts for dual sim.
But anyway, once the tray has been pushed out slightly, you have to try to grab and pull from the opposite side while pushing the pin in, otherwise there's high friction.